Caterpillar RT50
Caterpillartelehandler

Caterpillar RT50

Maintenance schedule, common problems & OEM parts breakdown

The Caterpillar RT50 is a rough-terrain telescopic material handler (telehandler) from Caterpillar's pre-alliance RT-series lineup, built alongside the RT50 SA, RTC60, RT60, RT80, and RT100 under a shared factory manual family. It runs a naturally aspirated Perkins-built Cat 4.236 diesel, a 3.9-liter (235.9 cu in) inline-four with mechanical fuel injection and no electronic engine controls. Cat paired the engine with a powershift transmission, load-sensing hydraulics, and planetary-reduction axles for four-wheel-drive rough-terrain work. Rated lift capacity sits at the light end of the family, around 2,270 kg (5,000 lb), the smallest of the RT50/RT60/RT80/RT100 range (RT80 is rated at 3,630 kg / 8,000 lb). Cat built the RT50 through the 1990s, ahead of the 2005 Cat/JLG telehandler alliance; documented serial prefixes for the family run 4XG and 5PF.

Within the RT50 badge, Cat offered a turbocharged RT50 SA alongside the base naturally aspirated RT50, sharing chassis and driveline architecture but not power output. The wider RT-series splits by drivetrain, not by generation: RT50, RT50 SA, RTC60, and RT60 share the 4.236 engine family, while the larger RT80 and RT100 use the unrelated Cat 3114T. No factory successor model is documented under the RT50 name; the JLG-built Cat TH-series that followed the 2005 alliance is a different platform, not a direct badge replacement. On the used and parts market, RT50 value sits almost entirely in its purely mechanical driveline: no CID/FMI fault codes to chase, straightforward powershift and hydraulic serviceability, and parts commonality across the RT50/RT50 SA/RTC60/RT60 sub-family keep these units running as low-complexity backup or rental-fleet machines long after Cat stopped building them.

Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.

Caterpillar RT50 specifications

Engine

Engine modelCat 4.236 diesel (Perkins-based 4-cylinder), the same engine family used across the RT50, RT50 SA, RTC60 and RT60 telescopic material handler line per the factory service manual grouping. Not to be confused with the larger 3114T diesel fitted to the higher-capacity RT80/RT100 siblings.
Cylinders / displacement4 cylinders, 3.86 L (235.9 cu in / 3,865 cc); bore 98.4 mm, stroke 127 mm
Aspiration / powerNaturally aspirated 4.236 base rated around 49 kW (66-67 hp); turbocharged T4.236 variant used in some telehandler applications is reported in the 74-85 hp range depending on source. Treat as a range — not confirmed to one figure for the RT50 specifically.
Emissions tierNot documented — this is a pre-Tier emissions era mechanical diesel (no ECM), consistent with its 1990s-era design.

Weights

Operating weightNot documented in available public sources for the RT50 specifically.
Shipping weightNot documented in available public sources.
Ground pressureNot published.

Dimensions

Transport length / width / heightNot documented in available public sources for the RT50 specifically.
Wheelbase / track gaugeNot published.
Ground clearanceNot published.
Tire size13.00x24, solid or pneumatic — shared spec across the RT50, RT80 and RTC60 siblings.

Performance

Travel speedNot documented in available public sources for the RT50 specifically.
Lift capacity / lift heightNot documented in available public sources for the RT50 specifically — verify against the machine's data plate or dealer parts lookup by serial number.
GradeabilityNot published.

Service capacities (summary)

Fuel tankNot documented in available public sources.
Hydraulic systemNot documented in available public sources.
Engine oilNot documented in available public sources.
Cooling systemNot documented in available public sources.

Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.

RT50 fluids & capacities

SystemCapacityRecommended fluid
Engine crankcase (with filter) — Perkins 4.236 diesel (naturally aspirated; RT50 SA uses the turbocharged T4.236 variant of the same block)approx. 8.0 L (8.5 US qt / 2.1 US gal) per the base engine builder's figure; Cat OMM chassis-specific dipstick figure for the RT50 install not confirmed in available sources — verify with dealer by serial numberCat DEO (Diesel Engine Oil), SAE 15W-40 for general/warm climates, SAE 10W-30 for cold-weather starts
Cooling systemapprox. 12.7 L (13.4 US qt / 3.4 US gal) per the base engine builder's figure; radiator/system total for the RT50 chassis not confirmed — verify with dealerCaterpillar antifreeze/coolant, full-strength or 50/50 mix per climate; era-appropriate conventional Cat coolant (pre-ELC generation for this machine class)
Fuel tanknot documented in accessible sources for this model — verify with dealer using serial numberULSD diesel fuel, no. 2-D grade for normal climates, no. 1-D for cold weather
Powertrain — power shift transmissionnot documented in accessible sources for this model — varies by serial-number range; verify with dealerCat TDTO (Transmission/Drive Train Oil), meets Cat TO-4 performance spec; SAE viscosity graded by ambient temperature (10W for cold, 30W general duty, 50W hot climates)
Final drives / axlesnot documented in accessible sources for this model — verify with dealer using serial numberCat TDTO (TO-4), same fluid family as the transmission on this class of Cat telehandler; do not substitute a straight gear oil unless the OMM specifies it
Hydraulic system and tanknot documented in accessible sources for this model — verify with dealer using serial numberAnti-wear hydraulic oil, ISO 32 for cold climates, ISO 46 for general duty, ISO 68 for hot climates; Cat HYDO-family product or equivalent anti-wear hydraulic fluid
Grease points (spec only)n/a — grease fitting service, no reservoir capacityCat multipurpose lithium-complex grease (NLGI 2); moly-fortified grease for high-load pivot pins where specified

Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.

Caterpillar RT50 maintenance schedule

Service intervalTasks
Every 10 h
  • Check engine oil and coolant levels before starting; top off with correct-spec fluids.
  • Walk around the machine and check for hydraulic leaks, loose fasteners, and boom pin wear.
  • Grease boom pivot pins, extend/retract wear pads, and lift cylinder pins at all zerk fittings.
  • Check tire condition, inflation, and wheel nut torque on all four wheels.
  • Test parking brake, service brakes, back-up alarm, and boom function controls before starting work.
  • Drain water and sediment from the fuel/water separator.
Every 250 h
  • Change engine oil and filter on the 4.236 diesel.
  • Check transmission oil level and inspect powershift clutch engagement for slipping or delay.
  • Check front and rear axle and differential oil levels.
  • Inspect drive shaft U-joints and slip yoke for wear; grease if fitted with zerks.
  • Service or replace the engine air filter primary element if the restriction indicator shows red.
  • Inspect hydraulic hoses, fittings, and boom wear pads for leaks or excess clearance.
Every 500 h
  • Replace the fuel filter and water separator element.
  • Change transmission oil and filter on the powershift unit.
  • Check hydraulic oil level and inspect the load-sensing pump and control valve for leaks.
  • Check axle differential and planetary hub oil; top off or change per running hours.
  • Torque wheel nuts and inspect steering linkage and tie-rod ends for play.
  • Check boom and outrigger (if equipped) cylinder relief pressures against spec.
Every 1,000 h
  • Change hydraulic system oil filter; sample hydraulic oil and change if condition warrants.
  • Change axle differential and planetary final-drive oil.
  • Check and adjust valve lash on the 4.236 diesel.
  • Inspect fan belt, alternator, and water pump for wear; replace as needed.
  • Inspect boom weld seams, pivot bushings, and telescope wear pads for cracks or excess wear.
  • Check parking brake band or disc wear and adjust.
Every 2,000 h
  • Change hydraulic system oil and clean or replace the suction strainer.
  • Drain, flush, and refill engine coolant; inspect radiator core and hoses.
  • Inspect powershift transmission clutch packs and torque converter for wear.
  • Check engine compression and injector condition; recalibrate the injection pump if output is uneven.
  • Inspect lift and tilt cylinders for internal leak-down and rod scoring.
  • Re-torque axle mounting bolts and inspect king-pin and steering cylinder pins for play.
Every 4,000 h
  • Schedule a full powershift transmission teardown to inspect clutch packs, bearings, and gear sets.
  • Inspect and, if needed, rebuild the engine top end: cylinder head, valves, and injectors.
  • Rebuild or replace boom lift and tilt cylinders showing seal or bore wear.
  • Overhaul axle planetary hubs and differential carriers for rough-terrain wear.
  • Inspect frame and boom structure for fatigue cracking at high-stress weld points.

Servicing the RT50 beyond the schedule

Predictive Maintenance & Fluid Analysis

The RT50's mechanical 4.236 diesel and powershift transmission carry no fault codes, so scheduled oil sampling is the main early-warning tool. Pull engine, transmission, axle, and hydraulic samples at each service interval and track metal content for signs of clutch-pack or gear wear. Watch coolant condition closely; overheating on this era's radiator core is a common precursor to head-gasket failure. Monitor hydraulic filter differential pressure too, since a failing load-sensing pump shows up there before it strands the boom mid-lift.

Corrective & Common Repairs

Boom wear-pad and pivot-pin replacement is the most common repair on high-hour RT50 units; loose pads show up as boom sag or side-play at full extension. Powershift clutch slippage or delayed direction shifts point to worn clutch packs or low transmission pressure, not electronics, since the machine carries no ECM to fault-check. Hard starting after sitting almost always traces to the mechanical injection pump or lift pump on the 4.236 diesel, not a sensor or relay.

Overhaul & Rebuild Points

Major rebuild points on the RT50 center on the powershift transmission clutch packs, the 4.236 diesel's injection pump and cylinder head, and the boom's telescoping wear pads and chains. Planetary axle hubs and differential carriers wear from sustained rough-terrain duty and deserve teardown inspection at extended overhaul intervals. Lift and tilt cylinders should be reseeded and bore-checked for scoring once leak-down exceeds spec, since this generation runs open-loop load-sensing hydraulics without electronic pressure monitoring to flag internal wear early.

Seasonal & Environment Servicing

Cold starts on the naturally aspirated 4.236 diesel depend on glow-plug condition and correct-viscosity engine and hydraulic oil; thickened hydraulic fluid slows load-sensing response in freezing temperatures. In dusty or sandy rough-terrain work, shorten air-filter and hydraulic-filter checks, since this era's filtration is coarser than current telehandlers. Wash accumulated mud from boom pivots and pins each shift in wet conditions, since packed mud washes grease out of the pins and accelerates bushing wear.

RT50 fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
Oil Pressure warning lamp (red oil-can symbol)Engine oil pressure has dropped below the safe switch thresholdLow oil level, failed oil pressure sender/switch, worn oil pump, or clogged oil filterShut down engine immediately, check oil level and condition, inspect filter and pressure switch before restart
Coolant Temperature warning lamp (red thermometer symbol)Engine coolant temperature has exceeded the safe operating rangeLow coolant level, blocked radiator fins, failed thermostat, slipping or broken fan beltIdle down and stop machine safely, let engine cool, check coolant level and radiator/fan belt condition
Alternator/Charging system warning lamp (red battery symbol)Charging circuit is not supplying adequate current to the batteryWorn or broken alternator belt, failed alternator, loose or corroded battery/charging wiringCheck belt tension and wiring connections, test alternator output, replace belt or alternator as needed
Air Cleaner Restriction indicator (yellow/red flag or lamp)Intake air filter restriction has reached the service limitDirty or clogged primary air filter element, blocked intake ductingInspect and clean or replace the air filter element, reset the restriction indicator
Hydraulic Oil Temperature warning lampHydraulic system fluid temperature is above normal operating rangeLow hydraulic fluid level, clogged oil cooler, relief valve stuck open causing continuous high-pressure bypassStop lift/boom functions, let hydraulic oil cool, check fluid level and cooler for debris
Parking Brake engaged warning lampParking brake is applied while transmission is asked to moveOperator left parking brake set, brake solenoid/switch fault, low brake release pressureConfirm parking brake lever/switch position, check brake release pressure and switch wiring if lamp stays on with brake released
Glow Plug/Cold Start preheat indicator lampIntake air preheat circuit is active for cold startingNormal cold-start cycle; if lamp will not extinguish, a preheat relay or glow plug/intake heater fault is likelyWait for lamp to go out before cranking; if it stays lit or never lights in cold weather, check preheat relay and wiring

Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.

RT50 attachments & work tools

Machine family & engine

The RT50 belongs to Caterpillar's original RT/RTC telescopic material handler line (RT50, RT50 SA, RTC60, RT60), which shares chassis and a naturally aspirated 3.6 L four-cylinder diesel (engine designation 4.236) across the family. The larger RT80/RT100 siblings use a different, turbocharged 3114T engine and should not be treated as the same platform for attachment or spec purposes.

Load class / capacity

Family model numbers track rated capacity in hundreds of pounds (RTC60 = 2722 kg / 6,000 lb, RT80 = 3629 kg / 8,000 lb), which places the RT50 in the roughly 2268 kg (5,000 lb) capacity class typical of a compact rough-terrain telehandler of its era. Treat this as a class-level estimate; a dedicated capacity chart for the RT50 was not found in surviving factory literature.

Pallet fork carriage

The primary work tool is a pin-mounted fork carriage carrying a pair of pallet forks, with tine lengths in the roughly 1.2-1.8 m (48-72 in) range typical for this lift class. Fork positioning (fixed vs hydraulic side-shift or spacing) is a carriage-level option and needs its own auxiliary hydraulic circuit rather than the base lift/tilt lines.

Buckets

A general-purpose or material bucket is the common secondary tool for loose-material loading, sized to the roughly 2.3 t lift class of this machine. RT50-specific bucket capacity and tilt-hydraulics requirements are not documented in available literature; verify carriage fit before ordering.

Jib, hook and winch

Rough-terrain telehandlers in this capacity class commonly offer a hook-on jib or boom-tip lifting hook, plus a winch attachment for suspended-load work, in place of the fork carriage. These are class-typical options rather than confirmed RT50 factory offerings; availability for a given serial range should be checked with a dealer.

Grapple and personnel platform

Grapple attachments (bucket or debris type) and personnel work platforms are offered across this telehandler class for material sorting and elevated-work duty. Neither is confirmed in factory documentation specific to the RT50; where a platform is fitted, it must meet the applicable aerial-work interlock and load-limiting requirements for that use.

Coupler / mounting system

Attachments mount to the carriage through the machine's own pin-type quick-attach arrangement, not the TH/IT quick-coupler standard used on Caterpillar's later JLG-built TH-series telehandlers. Forks and buckets currently marketed as "Cat telehandler" work tools are generally built for the TH/IT coupler and are not guaranteed to fit an RT50 carriage without checking.

Hydraulic arrangement

Base lift and tilt hydraulics run through the boom to the carriage; any attachment needing its own function (fork side-shift, grapple, winch, or auxiliary bucket tilt) needs a dedicated auxiliary circuit plumbed to the carriage. No factory hydraulic-kit option list specific to the RT50 was found in available literature.

Tire and undercarriage options

Machines in the RT50/RTC60/RT60 family are found on both pneumatic and foam-filled tires in a common 13.00 x 24 size, with foam-fill used to avoid flat-tire downtime on rough sites. This is a running-gear configuration choice rather than a boom-tip attachment, but it affects ground clearance and load charts.

Cab and guarding options

Field units appear with either an open ROPS/FOPS canopy or an enclosed cab, both period-correct configuration choices for this machine rather than boom attachments. No RT50-specific counterweight or extra guarding option list was found; confirm factory configuration against the machine's serial-number data plate.

All RT50 assemblies by section

Every catalogued assembly group for the Caterpillar RT50. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Attachments
898114 Guard Group - Vandalism
Axles And Brakes
975234 Axle Casing Group-Part 2 Of 2
975234 Axle Casing Group-Part 1 Of 2
8q2067 Axle Kit - Front
8q2066 Axle Kit - Rear
8q6742 Axle Stop Group
985560 Brake And Inching Pedal Group
8i3593 Brake Cylinder Retrofit Kit (Rt50, Rtc60 And Rt60)
897769 Brake Piping Group - Cab (Rt50 Rtc60 And Rt60)
8q2438 Brake Valve
8q6299 Brake Valve Group
838028 Chassis Brake Piping Group (Rt60)
897771 Chassis Brake Piping Group - With Inching Pedal (Rt50 And Rtc60)
08***71Chassis Brake Piping Group - With Inching Pedal1
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6r7886 Chassis Brake Piping Group - With Inching Pedal
6R***86Chassis Brake Piping Group - With Inching Pedal1
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8q2706 Chassis Brake Piping Group - Without Inching Pedal
8Q***06Chassis Brake Piping Group - Without Inching Pedal1
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975139 Master Cylinder Group
975309 Differential Casing Group
975140 Differential Casing Group
975311 Differential Group
975182 Differential Group
975315 Disc Brake Group
975153 Disc Brake Group
8q2487 Foot Pedal - Brake
897935 Front Axle Group-Frame Leveling-Steering (Rt50 And Rtc60)
838861 Front Axle Cover Group (Rt50, Rtc60 And Rt50 Sa)
8l8863 Front Axle Cover Group (Rt60)
897928 Front Axle Group (Steer - Drive, With Differential Lock And Park Brake)
815486 Front Axle Group (Rt60)
5i0624 Front Axle Group-(Rt60)
816230 Front Axle Group - Fixed Frame - Steering (Rt50, And Rt50 Sa)
08***30Front Axle Group - Fixed Frame - Steering1
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5i0626 Front Axle Group - Fixed Frame - Steering (Rt50 And Rt50 Sa)
5I***26Front Axle Group - Fixed Frame - Steering1
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5i0625 Front Axle Group-Frame Leveling-Steering (Rt50 And Rtc60)
5I***25Front Axle Group-Frame Leveling-Steering1
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975135 Steering Rod Group
6r7745 Inching Valve Group
8i4650 Kit - Power Brake Retrofit Group (Rtc60)
8I***49Power Braking Kit0
8I***50Kit - Power Brake Retrofit Group1
8Q***03Electrical Group - Power Brake0
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838904 L.H. Wheel Group-Rt50 Sa(Optional Rt50)
838553 L.H. Wheel Group (Rt60)
898022 L.H. Wheel Group (Rt60)
5i0628 Master Cylinder Retrofit Kit
8q2451 Master Cylinder Retrofit Kit - Early Cabs
8Q***51Master Cylinder Retrofit Kit - Early Cabs1
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985761 Parking Brake Group (Rt60)
6r7569 Parking Brake Group (Rt50, Rt50sa, Rtc60, Rt60)
985120 Parking Brake Group (Rt50, Rt50sa And Rtc60)
8q6865 Parking Brake Group (Rtc60)
908435 Pedal Group - Inching
8q2705 Pedal Gear Group - Part 1 Of 2
8q2705 Pedal Gear Group- Part 2 Of 2
6r7540 Pedal Gear Group - Part 2 Of 2
6r7540 Pedal Gear Group - Part 1 Of 2
897391 Brake And Inching Pedal Group
897774 Piping Group - Axle
8q6812 Piping Group - Axle (Rt50, Rt50sa And Rtc60)
8q6671 Piping Group - Axle (Rt50, Rt50sa And Rtc60)
8q5393 Power Brake Retrofit Group (Rt60) - Part 1 Of 3
8q5393 Power Brake Retrofit Group (Rt60)- Part 3 Of 3
8q5393 Power Brake Retrofit Group (Rt60)- Part 2 Of 3
8q2734 Power Braking Group- Part 1 Of 3 (Rt60)
8q6813 Power Braking Group - Part 2 Of 3 (Rtc60)
8q6813 Power Braking Group- Part 1 Of 3 (Rtc60)
8q2734 Power Braking Group- Part 2 Of 3 (Rt60)
8q2734 Power Braking Group- Part 3 Of 3 (Rt60)
8q6813 Power Braking Group - Part 3 Of 3 (Rtc60)
8i4649 Power Braking Kit Rtc60 - Part 2 Of 3
8i4649 Power Braking Kit Rtc60 - Part 3 Of 3
8i4649 Power Braking Kit Rtc60 - Part 1 Of 3
838905 R.H. Wheel Group-Rt50 Sa(Optional Rt50)
898021 R.H. Wheel Group (Rt60)
838552 R.H. Wheel Group (Rt60)
897933 Rear Axle Group
5i0627 Rear Axle Group
897929 Rear Axle Group (Steer - Drive)
1011873 Reservoir
897931 And 897932 Standard Wheel Groups (Rt50 And Rtc60)
909894 Valve Group - Brake
Basic Engine
9y5861 Camshaft Gp
9y5013 Camshaft Gp
7w6206 Cover Gp-Valve Mechanism
6i0039 Crankshaft Gp
7c6945 Crankshaft Gp
9y2630 Cylinder Block Gp
9y2629 Cylinder Block Gp
9y5101 Cylinder Block Gp
4p9072 Cylinder Block Gp
7c9257 Cylinder Head Gp
9y3705 Cylinder Head Gp
7c3188 Cylinder Head Gp
7c3750 Cylinder Head Gp
7c5408 Cylinder Head Gp
7c8013 Flywheel Gp
9y5108 Gear Gp-Front
9y5003 Gear Gp-Front
9Y***03Gear Group-Front; Gear Gp-Front Idler1
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7c8009 Housing Gp-Flywheel
9y5110 Housing Gp-Front
9y5045 Housing Gp-Front
7w2537 Lifting Eye Gp-Engine
7W***37Lifting Group-Engine; Lifting Eye Gp-Engine1
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7c3116 Mounting Gp-Engine
7w2511 Piston & Rod Gp
7W***11Piston & Rod Group; Rod & Piston Gp1
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1n4268 Rod & Piston Gp
7c8209 Pulley Gp-Crankshaft
4w3347 Support Gp-Tube
7w6204 Valve Mechanism Gp
7w2531 Valve-Mechanism Gp
Boom And Forks
6r9132 Aux 2 Service Group (U S A)
6r9142 Aux 2 Service Group (U S A)
8q2806 Aux 2 Service Group (Cosa)
6r7697 Aux 2 Service Group (Cosa)
897521 Boom Raise Group (Rt50 And Rtc60)
985494 Boom Head Section Group (Two Section Boom)
897363 Boom Head Section Group (3 Section Boom) (Rtc 60)
985442 Boom Head Section Group (3-Section Boom) (Rt 60)
985362 Boom Head Section Group (3-Section Boom) (Rtc60)
844212 Boom Head Section Group (Two Section Boom)
897635 Boom Head Section Group (2 Section Boom)
6r9187 Boom Hyd Assembly (2 Section)
6r9191 Boom Hyd Assembly (3 Section)
897562 Boom Hydraulics Group (3 Section Boom With Auxiliary Services)
897364 Boom Hydraulics Group
985409 Boom Hydraulics Group (3 Section Boom With Auxiliary Services)
8q5968 Boom Raise Cylinder
8q6081 Boom Raise Cylinder
8q5930 Boom Raise Cylinder (Rt60)
897645 Boom Raise Cylinder Group (Rt50 And Rtc60)
897975 Boom Raise Cylinder Group (Rt 60)
08***75Boom Raise Cylinder Group (Rt 60)1
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898014 Boom Raise Group (Rt 60)
6r7496 Boom Raise Group (Rt50 Sa)
6r7497 Boom Raise Ram Group (Rt50 Sa)(Rt50)
6r7489 Boom Raise Ram Group (Rt50sa)
8q6743 Boom Raise Stop Group
838706 Boom Rest Group (Rt60)
985264 Boom Rest Group Rt50, Rt50 Sa And Rtc60)
838170 Boom Safety Stop Group
898273 Boom Safety Stop Group
985941 Boom Safety Stop Group
8q6831 Bucket Group (Italian)
897303 Cetop 3 Control Valve
985398 Chain Group (Rtc60)
898006 Chain Group (Rt 60)
897341 Chain Group (Rtc60)
8q6069 Compensating Cylinder
898184 Compensating Cylinder Assembly
898183 Compensating Group
6r9317 Conversion Kit, 6r9318 Roll Clamp & 6r9319 Bale Clamp Groups
6R***17Conversion Kit, 6r***18 Roll Clamp & 6r***19 Bale Clamp Groups1
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985615 Cubing Fork Group
6r7723 Cubing Fork Group-Framers Carriage
6R***23Cubing Fork Group-Framers Carriage1
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8i3722 Emergency Stop Group - Electrical
8I***22Emergency Stop Group - Electrical1
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815828 Fork Carriage Guard Group
8i3800 Fork Carriage Hook As.
815830 Fork Group (1220 Mm)
815829 Fork Group (1070 Mm)
8q6097 Fork Level Cylinder
897347 Fork Level Cylinder Group
985388 Fork Level Cylinder Group
897646 Fork Level Cylinder Group - First Type
985389 Fork Level Cylinder Group - Second Type
985387 Fork Level Cylinder Group - Second Type
897355 Fork Level Ram Group
8q6064 Fork Rotate Cylinder
985547 Fork Stowage Group
985614 Framer Carriage Group-Rotate
815689 Framers Carriage Group (I.T.)
838026 Hydraulic Cylinder Group
815911 Hydraulic Piping Group - Rotate Forks
08***11Hydraulic Piping Group - Rotate Forks1
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838605 Hydraulic Piping Group - Rotate Forks
08***05Hydraulic Piping Group - Rotate Forks1
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838143 Hydraulic Quick Hitch Group
838550 Loader Bucket
838080 Locking Pin Group
897617 Multi Hitch Fork Carriage Group
08***17Multi Hitch Fork Carriage Group1
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985421 No. 1 Boom Section Group (3 Section Boom With Compensating Cylinders) (Rt60)
985347 No. 2 Boom Section Group (Rtc60)
985437 No. 2 Boom Section Group (Rt60) (First Type)
898164 No.1 Boom Section Group (3 Section Boom With Compensating Cylinders) (Rtc60)
985321 No. 1 Boom Section Group (3 Section Boom With Compensating Cylinders) (Rtc60)
816189 No. 1 Boom Section Group (2 Section Boom With Compensating Cylinders)
844208 No1 Boom Section Group (3-Section Boom With Compensating Cylinders) (Rtc60)
844205 No1 Boom Section Group (3-Section Boom With Compensating Cylinders) (Rt60)
844211 No1 Boom Section Group (2-Section Boom With Compensating Cylinders)
985493 No1 Boom Section Group (2-Section Boom With Compensating Cylinders)
844209 No2 Boom Section Group (Rtc60) (Third Type)
844206 No2 Boom Section Group (Rt 60) (Second Type)
897362 No2 Boom Section Group (Rtc60)
5i0507 Pressure Balance Valve Group
5i0616 Quick Fit Carriage Group (Cosa)
815745 Quick Hitch Group (I.T.)
985853 Quick Hitch Pin Retaining Group
09***53Quick Hitch Pin Retaining Group1
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838611 And 838612 Radius / Angle Indicator Group (Rt50 Rt50 Sa And Rtc60)
838408 Radius / Angle Indicator Group (Rt 60)
985856 And 985199 Radius / Angle Indicator Groups (Rt50 And Rtc60)
09***99Radius / Angle Indicator Groups1
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8i3725 Reeling Drum Group - Basket
815646 Rolling Hose Group
975494 Rotate Fork Carriage Group
815688 Rotate Fork Carriage Group
975493 Standard Fork Carriage Group (I.T.)
815687 Standard Fork Carriage Group (I.T.)
897640 Standard Fork Carriage Group
897644 Tele Cylinder Group (Rt50 And Rtc60)
897978 Tele Cylinder Group (Rt 60)
844338 Tele Cylinder Group (Rt50 Sa)
8q5875 Telescoping Cylinder
8q6157 Telescoping Cylinder
8q5874 Telescoping Cylinder
844337 Telescoping Group (Rt50 Sa) - First Type
898004 Telescoping Group (Rt60)(Second Type - 5dg330)
898004 Telescoping Group (Rt60) (5dg331 - Up)
897636 Telescoping Group (2 Section Boom) Rt50
898004 Telescoping Group (Rt60) (First Type)
985396 Telescoping Group (3-Section Boom) (Rtc60)(Third Type - 5pf632)
897333 Telescoping Group (3 Section Boom) (Rtc60)
985396 Telescoping Group (3 Section Boom) (Rtc60) - Second Type
985396 Telescoping Group (3-Section Boom) (Rtc60)(5pf633-Up)
844337 Telescoping Group (Rt50 Sa) - Second Type
844204 Three Section Boom Group (With Compensating Cylinders) (Rt60)
898163 Three Section Boom Group (With Compensating Cylinders) (Rtc60)
985320 Three Section Boom Group (With Compensating Cylinders) (Rtc60)
985420 Three Section Boom Group (With Compensating Cylinders) (Rt60) (First Type)
844207 Three Section Boom Group (With Compensating Cylinders) Rtc60 5pf694 - Up
844207 Three Section Boom Group (With Compensating Cylinders) Rtc60 Third Type To 5pf693.
844204 Three Section Boom Group (With Compensating Cylinders) (Rt60) 5dg357 - Up
838549 Truss Boom
844210 Two Section Boom Group (With Compensating Cylinders) Rt50 And Rtc60
844339 Two Section Boom Group (With Compensating Cylinders) Rt50 Sa 8dj494 - 495
844339 Two Section Boom Group (With Compensating Cylinders)
985492 Two Section Boom Group (With Compensating Cylinders) (Rt50 And Rtc60)
844336 Two Section Boom Group (With Compensating Cylinders) Rt50 Sa 8dj479 - 493.
898234 Two Section Boom Group (With Compensating Cylinders) (Rt50 And Rtc60)
985843 Wear Pad Group
985845 Wear Pad Group
Cab
6r9173, 6r7698 And 6r9212 Deluxe Cab Groups (Later Machines)
8i4664 Air Conditioning Group
8i4706 Air Conditioning Installation Group
8I***06Air Conditioning Installation Group1
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6r9211 All Weather Cab Group (Later Machines)
6R***11All Weather Cab Group; Machines With Power Braking (6r***12 Only)1
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6r7621 All Weather Cab Group (Later Machines)
6R***21All Weather Cab Group; Machines Without Power Braking (6r***98 Only)1
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816229 Basic Cab And Mounting Group (Rt50 And Rtc60) - Third Type
816229 Basic Cab And Mounting Group (Rt50 And Rtc60) - Second Type
816229 Basic Cab And Mounting Group (Rt50 And Rtc60) - Fourth Type
6r9358 Basic Cab And Mounting Group (4xg511 Only)
985762 Basic Cab And Mounting Group (Rt60) Second Type - 5dg356
985762 Basic Cab And Mounting Group (Rt60) First Type
8q5357 Basic Cab Group (Rt60)
6r7472 Basic Cab Group (Rt50, Rt50sa, Rtc60)
897525 Basic Cab And Mounting Group (Rt50 And Rtc60) - First Type
815557 Cab Door Group - Part 2 Of 2 (All Weather Cab)
815557 Cab Door Group -Part 1 Of 2 (All Weather Cab)
6r7702 Cab Glazing Group
897563 Cab Glazing Group (All Weather Cab)
6r7744 Cab Group Basic (Rt50, Rt50sa, Rtc60)
8q5356 Cab Group Basic
897565 Cab Heater Group (All Weather Cab)
6r7641 Cab Heater Group (All Weather Cab Group) Rt50, Rt50sa, And Rtc60.
6r7907 Cab Heater Group (All Weather Cab Group) Rt60.
838599 Cab Heater Group Rt50 And Rtc60 (All Weather Cab)
838711 Cab Heater Group Rt60 (All Weather Cab)
8q6711 Capacity Chart Group (C.O.S.A.) (Rt60)
8q2450 Capacity Chart Group (U.S.A.) (Rt50, Rt50 Sa)
6r9171 Capacity Chart Group (U.S.A.) (Rt60)
6r7735 Capacity Chart Group (C.O.S.A.) (Rt50, Rt50 Sa)
6r9170 Capacity Chart Group (C.O.S.A.) (Rt60)
6r9115 Capacity Chart Group (U.S.A.) (Rtc60)
8q6759 Capacity Chart Group (C.O.S.A.) (Rtc60)
6r9114 Capacity Chart Group (C.O.S.A.) (Rtc60)
Capacity Chart Groups
838753 Cover Plate Group (Fixed Frame Machines)
6r7541 Dashpanel Group
985589 Decal Group-Rt60 (Second Type - 5dg356)
08***70Film Rt603
08***27Tread3
09***89Decal Group1
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985588 Decal Group - Rt50 (First Type)
09***83Film - Rt 50 (R.H.)1
09***84Film - Rt 50 (L.H.)1
09***88Decal Group1
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985589 Decal Group-Rt60 (First Type)
09***25Film - Rt 60 (R.H.)1
09***26Film - Rt 60 (L.H.)1
09***89Decal Group1
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985590 Decal Group - Rtc60 (First Type)
09***85Film - Rtc 60 (R.H.)1
09***86Film - Rtc 60 (L.H.)1
09***90Decal Group1
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985590 Decal Group-Rtc60(Second Type - 5pf693)
08***69Film Rtc603
08***25Tread3
09***90Decal Group1
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985588 Decal Group-Rt50 (Second Type - 5pf692 And 4xg523)
08***68Film Rt503
08***25Tread3
09***88Decal Group1
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6r9174 Decal Group - Danish - Type 1
08***81Film Notice Control Box1
09***36Film-Warning; (Jumper Cable Use)1
09***45Film Operator Warning1
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6r7830 Decal Group - Dutch - Type 1
08***83Film Notice Control Box1
09***67Film Operator Warning1
09***24Film; (Dry Air Cleaner)1
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6r9169 Decal Group - English (Rt60) (U.S.A.)
8q2736 Decal Group - English (Rt50sa) (U.S.A.)
8q2737 Decal Group - English (Rtc60) (C.O.S.A.)
6r9133 Decal Group - English (Rt50)(U.S.A.)
6r9158 Decal Group - English (Rt50sa) (C.O.S.A.)
8q2738 Decal Group - English (Rt60) (C.O.S.A.)
6r9117 Decal Group - English (Rtc60) (U.S.A.)
6r7820 Decal Group - English (Rt50sa)
8q2739 Decal Group - English (Rt50)(C.O.S.A.)
6r7826 Decal Group - French - Type 2
03***34Plate - Warning (Park Brake)1
08***76Film Notice Control Box1
09***48Film-Warning; (Jumper Cable Use)1
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985592 Decal Group - French - Type 1
03***34Plate - Warning (Park Brake)1
03***30Film - Dry Air Cleaner1
09***48Film-Warning; (Jumper Cable Use)1
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6r9176 Decal Group - French (Nacd) - Type 1
03***34Plate - Warning (Park Brake)1
08***76Film Notice Control Box1
09***48Film-Warning; (Jumper Cable Use)1
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6r7829 Decal Group - German - Type 1
03***36Plate Warning - Parking Brake1
08***78Film Notice Control Box1
09***50Film-Warning; (Jumper Cable Use)1
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6r9175 Decal Group - Greek - Type 1
08***82Film Notice Control Box1
09***37Film-Warning; (Jumper Cable Use)1
09***46Film Operator Warning1
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6r7828 Decal Group - Italian - Type 2
03***37Plate - Warning (Park Brake)1
08***79Film Notice Control Box1
09***51Film-Warning; (Jumper Cable Use)1
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985594 Decal Group - Italian - Type 1
03***37Plate - Warning (Park Brake)1
03***33Film - Dry Air Cleaner1
09***51Film-Warning; (Jumper Cable Use)1
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6r7831 Decal Group - Portuguese - Type 1
08***80Film Notice Control Box1
09***23Film; (Dry Air Cleaner)1
09***35Film-Warning; (Jumper Cable Use)1
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6r7827 Decal Group - Spanish - Type 2
03***35Plate - Warning (Park Brake)1
08***77Film Notice Control Box1
09***49Film-Warning; (Jumper Cable Use)1
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6r9177 Decal Group - Spanish (Nacd) - Type 1
03***35Plate - Warning (Park Brake)1
08***77Film Notice Control Box1
09***49Film-Warning; (Jumper Cable Use)1
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985591 Decal Group - Standard
985593 Decal Group - Spanish - Type 1
03***35Plate - Warning (Park Brake)1
03***31Film - Dry Air Cleaner1
09***49Film-Warning; (Jumper Cable Use)1
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985195 Document Pouch Group - First Type
838887 Document Pouch Group - Second Type
8q2731 Document Pouch Group
8q6869 High Back Seat Group
6r7703 Mat Group - Cab Interior
8q2704 Mat Group - Cab Interior
816187 Mat Group Cab Interior (All Weather Cab)
838132 Mirror Group
815978 Mirror Group
844374 Mirror Group
838819 Operators Cab Door Group - Part 1 Of 2
6r9341 Operators Cab Door Group - Part 2 Of 2
838819 Operators Cab Door Group - Part 2 Of 2
6r9341 Operators Cab Door Group - Part 1 Of 2
8q6304 Pedal Switch Group
8q2439 Pivot Duty Chart Group (U.S.A.) (Rt60)
6r7731 Radio/Cassette Group (U.S.A.)
6r7730 Radio/Cassette Group (C.O.S.A.)
6r9210 Rear Window Group
8q6841 Rear Window Group
8q6692 Roof Guard Group
6r7646 Roof Wiper Group (Second Type)
844163 Roof Wiper Group (First Type)
6r9346 Seat & Cab Group - Special (4xg511 Only)
6r9357 Seat Closing Plate Group
8q2793 Seat Closing Plate Group
6r7743 Seat Group (Vinyl) Static
6r7473 Seat Group (Cloth) Static
844094 Seat Group (Cloth) Suspension
6r7700 Seat Group (Vinyl) Suspension
897567 Static Seat Group
985561 Shelf Group
898243 Shelf Group
8q5417 Side Window As.
8q6859 Sunvisor Group
897568 Suspension Seat Group
816178 Washer Group - Front Screen (All Weather Cab)
844304 Windscreen Grill Group
897547 Windscreen Wiper Group (All Weather Cab)
6r9109 Wing Mirror Group
Cooling
9y5134 Fan Gp
9y5106 Lines Gp-Water
9y3097 Pump Gp-Water
4w7684 Pump Gp-Water
Electrical Equipment
6r7701 Auxiliary Electrical Services Group
6r7701 Auxiliary Electrical Services
898113 Back Up Alarm Group
5c4813 Rotating Beacon-Amber
1H***38Lockwasher, External Tooth (1/4); W/O Freespool Qty Is 63
3C***98Lens1
5C***13Beacon-Rotating1
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837868 Boom Head Electrical Group (Rt60)
815676 Boom Head Electrical Group
6r9184 Boom Work Lamp Group (Rt60)
898110 Boom Work Lamp Group Rt50 And Rtc60
838831 Boom Work Lamp Group Rt50, Rt50sa, Rtc60 And Rt60
6r7643 Boom Work Lamp Group (Rt50 Sa Second Type Rt50 And Rtc60)
838915 Boom Work Lamp Group (With Boom Services) (Rt60)
08***15Boom Work Lamp Group (With Boom Services)1
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6r7642 Boom Work Lamp Group (With Boom Services) Rt50 Sa Second Type Rt50 And Rtc60
6R***42Boom Work Lamp Group (With Boom Services)1
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815993 Boom Work Lamp Group (With Boom Services) Rt50 And Rtc60
08***93Boom Work Lamp Group (With Boom Services) Rt50 And Rtc601
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815988 Cab Lamp Group (All Weather Cab)
08***88Cab Lamp Group (All Weather Cab)1
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985140 Differential Lock Retrofit Kit
6r7848 Display Unit
985807 Dump Solenoid-Electrical Equipment Group
09***07Dump Solenoid-Electrical Equipment Group1
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8q6682 Electrical Group
815974 Electrical Group - Aux Service (3 Section Boom)
08***74Electrical Group - Auxiliary Service (3 Section Boom)1
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6r9188 Electrical Group - Boom
6r9246 Electrical Group - Boom
815916 Electrical Group - Cab (Rt50, Rtc60 And Rt60)
6r7470 Electrical Group - Chassis - Part 2 Of 2
6r7470 Electrical Group - Chassis -Part 1 Of 2
844289 Electrical Group - Dashpanel
985698 Electrical Group - Dashpanel
815924 Electrical Group - Dashpanel
6r7833 Electrical Group - Hyd Quick Hitch
6R***33Electrical Group - Hydraulic Quick Hitch1
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8q2703 Electrical Group - Power Brake (Rt60, Rtc60)
815931 - Electrical Group - Steer Column
08***31Electrical Group - Steer Column1
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6r7532 Electrical Group - Steering Column
6R***32Electrical Group - Steering Column1
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6r7531 Electrical Group Cab
815926 Electrical Group- Chassis (Rt50, Rtc60 And Rt60) First Type
838141 - Electronic Control Box Group (U.S.A.)
6r9008 - Electronic Control Box Group (C.O.S.A.)
838141 - Electronic Control Box Group
815920 Electronic Control Box Group
8q6325 Emergency Stop Group
8q2662 Fork Flip Retrofit Kit
844346 Fuse And Relay Panel Group
986021 Fuse Cover Installation Kit
815979 Headlamp L.H. Dip Group
815980 Headlamp R.H. Dip Group
975133 Instrument Gp
03***30Terminal5
09***20Housing1
09***43Gauge As-Fuel1
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844311 Joystick Auxiliary Service. Retro Kit (Rt50, Rtc50, Rt60)
08***11Joystick Auxiliary Service. Retro Kit1
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6r9251 Joystick Control Lever
9r8250 Lamp Gp-Rotating Warning
815702 Left Front Light Group (Left Hand Dip)
08***02Left Front Light Group (Left Hand Dip)1
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815985 Left Front Light Group (Right Hand Dip)
08***85Left Front Light Group (Right Hand Dip)1
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838916 Boom Work Lamp Group (Rt60)
838797 Load Indicator Group (W.W.425) (Rt50 Rtc60 And Rt60)
6r7947 Load Indicator Group (W.W.425) (Rt50, Rt50sa, Rt60 And Rtc60)
8q6305 Number Plate Group
8q6844 Number Plate Group
815958 Rear Fog Light Group
8q6324 Reflector Group
8q6303 Reflector Group
815957 Reversing Lamp Group
815701 Right Front Light Group (Left Hand Dip)
08***01Right Front Light Group (Left Hand Dip)1
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815984 Right Front Light Group (Right Hand Dip)
08***84Right Front Light Group (Right Hand Dip)1
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6r9181 Road Lighting Group - All Weather - Left Hand Dip
6R***81Road Lighting Group - All Weather - Left Hand Dip1
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6r9183 Road Lighting Group - All Weather - Right Hand Dip
6R***83Road Lighting Group - All Weather - Right Hand Dip1
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6r7759 Road Lighting Group - All Weather Cab - Left Hand Dip
6R***59Road Lighting Group - All Weather Cab - Left Hand Dip1
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6r7761 Road Lighting Group - All Weather Cab - Right Hand Dip
6R***61Road Lighting Group - All Weather Cab - Right Hand Dip1
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815965 Road Lighting Group - All Weather Cab Attachment - Left Hand Dip
08***65Road Lighting Group - All Weather Cab Attachment - Left Hand Dip1
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6r7618 Road Lighting Group - All Weather Cab Attachment - Left Hand Dip
6R***18Road Lighting Group - All Weather Cab Attachment - Left Hand Dip1
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6r7620 Road Lighting Group - All Weather Cab Attachment - Right Hand Dip
6R***20Road Lighting Group - All Weather Cab Attachment - Right Hand Dip1
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815987 Road Lighting Group - All Weather Cab Attachment - Right Hand Dip
08***87Road Lighting Group - All Weather Cab Attachment - Right Hand Dip1
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6r9180 Road Lighting Group - Standard Cab - Left Hand Dip
6R***80Road Lighting Group - Standard Cab - Left Hand Dip1
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6r7758 Road Lighting Group - Standard Cab - Left Hand Dip
6R***58Road Lighting Group - Standard Cab - Left Hand Dip1
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6r7760 Road Lighting Group - Standard Cab - Right Hand Dip
6R***60Road Lighting Group - Standard Cab - Right Hand Dip1
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898111 Road Lighting Group - Standard Cab Attachment - Left Hand Dip
08***11Road Lighting Group - Standard Cab Attachment - Left Hand Dip1
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6r7617 Road Lighting Group - Standard Cab Attachment - Left Hand Dip
6R***17Road Lighting Group - Standard Cab Attachment - Left Hand Dip1
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815986 Road Lighting Group - Standard Cab Attachment - Right Hand Dip
08***86Road Lighting Group - Standard Cab Attachment - Right Hand Dip1
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6r7619 Road Lighting Group - Standard Cab Attachment - Right Hand Dip
6R***19Road Lighting Group - Standard Cab Attachment - Right Hand Dip1
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6r9182 Road Lighting Group - Standard Cab-Right Hand Dip
6R***82Road Lighting Group - Standard Cab-Right Hand Dip1
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898112 Rotating Beacon Group (Rt50, Rtc60 And Rt 60)
6r7645 Rotating Beacon Group (Rt50 Sa, Rt50, Rt60 And Rtc60)
8q6302 Rotating Beacon Group
815953 Side / Direction Indicator Lamp
08***53Side / Direction Indicator Lamp1
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8q6301 Side Indicator Group
8q6703 Speedometer Group
6r7916 Steering Column Switch
815932 Steering Column Switch Group
815954 Stop / Tail / Direction Lamp
816169 Stop Button Group
838602 Stop Button Group (Rt50 Rtc60 And Rt60)
6r7594 And 8q6300 Stop Button Groups
985652 Thermistor Kit-Field Installed
Engine Arrangement
4p9074 Engine Ar
4P***72Cylinder Block Group1
4P***73Lines Group-Engine Oil1
4P***74Engine Ar1
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7c6104 Engine Ar
1N***68Piston & Rod Group1
1W***57Pump Group-Engine Oil1
7C***47Manifold Group-Exhaust1
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Engine Related Parts
897715 Air Cleaner Group (Rt50 Rtc60 And Rt60)
838616 Air Cleaner Group (Rt50 And Rtc60)
8q5330 Air Cleaner Group (Rt60)
6r7492 Air Cleaner Group (Rt50 Sa)
6r7491 Engine Group (Rt50 Sa) Third Type
897445 Engine Group (Rt50 And Rtc60)
6r7491 Engine Group (Rt50 Sa) First Type
6r7491 Engine Group (Rt50 Sa) Second Type
985654 Engine Group (Rt50 Rtc60 And Rt60)
897446 Engine Mounting Group
897728 Exhaust Group (Rt50 Rtc60 And Rt60)
1011884 Exhaust Group (Rt50 Sa)
1011883 Exhaust Group (Rt60)
6r7493 Exhaust Group (Rt50 Sa)
8i3669 Exhaust Group (Rt50, Rtc60)
816116 Fuel Lines Group
897729 Fuel Lines Group
6r7471 Power Group (Rt50 Sa)
897444 Power Group (Rt50 And Rtc60) - First Type
816223 Power Group (Rt50 And Rtc60) - Second Type
985465 Power Group (Rt60)
897665 Radiator Group (Rt50 And Rtc60)
816347 Radiator Group (Rt50, Rt50 Sa And Rtc60)
985466 Radiator Group (Rt60)
897438 Throttle Pedal Group
985596 Throttle Group
Frame And Panels
898125 Ballast Weight Group (Rt50 Two Section Boom Machines)
897514 Ballast Weight Group (Rt60 Machines)
815939 Ballast Weight Group (Rtc60 Three Section Boom)
838562 Ballast Weight Group (Rtc60 Two Section Group)
8q2457 Ballast Weight Group A.N.S.I. (Rt50 Two Section Boom - Nacd)
985828 Ballast Weight Group (Rtc60 Two Section Boom Machines)
838557 Ballast Weight Group. A.N.S.I. (Rt50 And Rt50 Sa)
985290 Chassis Group - Frame Leveling With Compensating Cylinders (Rt60)
816257 Chassis Group - Frame Leveling With Compensating Cylinders (Rt50 And Rtc60)
898263 Chassis Group - Fixed Frame With Compensating Cylinders (Rt50 And Rtc60)
816233 Chassis Group - Fixed Frame With Compensating Cylinders (Rt50 Rt50 Sa And Rtc60)
898180 Chassis Group - Frame Leveling With Compensating Cylinders (Rt50 And Rtc60)
897891 Platform And Engine Cowl Group (Rt50 And Rtc60)
8q6107 Frame Level Cylinder - Second Type
897647 Frame Level Cylinder Group
8q2719 Frame Level Group (Rt60 Machines With All Electric Main Control Valve)
985486 Frame Level Group (Rt60)
6r9139 Frame Level Group (Rt50 And Rtc60 Machines With All Electric Main Control Valve)
8q6741 Frame Level Stop Group Rh
8q6736 Frame Level Stop Group Lh
8q6319 Front Mudwing Group - Right Hand
1010674 Front Mudwing Group - Left Hand
8q6837 Grab Handle Tank Group
8q6735 And 8q6734 Homologation Group - Italian (Rt60 - 5dg368 And Rtc60 - 5pf699)
8q6834 Homologation Group - German (Rtc60) 5pf696 And 5pf731
897874 Hydraulic Piping Group - Frame Leveling (Rt50 And Rtc60)
838543 Hydraulic Piping Group - Frame Leveling (Rt50 And Rtc60)
985768 Hydraulic Piping Group - Frame Leveling (Rt60)
838547 Hydraulic Piping Group - Frame Leveling (Rt60)
8q6830 Hydraulic Tow Hitch - Later Fit
897501 Frame Level Group (Rt50 And Rtc60)
8q5403 Lights Cover Plate Group Rt50, Rt60 And Rtc60
838443 Platform And Engine Cowl Group--Part 2 Of 2 (Rt50, Rt50sa And Rtc60)
838443 Platform And Engine Cowl Group--Part 1 Of 2 (Rt50 Rt50sa And Rtc60)
838437 Platform And Engine Cowl Group--Part 2 Of 2 (Rt60)
816225 Platform And Engine Cowl Group - Part 1 Of 2 (Rt50 And Rtc60)
838437 Platform And Engine Cowl Group--Part 1 Of 2 (Rt60)
816225 Platform And Engine Cowl Group--Part 2 Of 2 (Rt50 And Rtc60)
8q6326 Rear Mudwing Group
838458 Rear View Mirror Group (Tow Hitch)
6r7813 Sound Suppression Option (Cosa) (Rt50. Rt50 Sa. Rtc60)
6r7814 Sound Suppression Option (Usa) (Rt60)
838025 Sound Suppression Option (Cosa) (Rt60)
898117 Sound Suppression Option (Cosa) (Rt50. Rt50 Sa. Rtc60)
8q6332 Tank Stay Rod Group
6r7843 Tow Hitch Group With Ballast
6r7845 Tow Hitch Group (Cosa)
6r7844 Tow Hitch Group Without Ballast (Second Type)
838471 Tow Hitch Group Without Ballast
08***71Tow Hitch Group Without Ballast1
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815940 Towing Hitch Group
8i5200 Trailer Braking Group
8i5175 Trailer Lighting Group
Fuel
7w4175 Filter Gp-Fuel
7W***75Filter Group-Fuel; Fuel Filter Group1
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9y5118 Lines Gp-Fuel Filter
4p9872 Lines Gp-Fuel Filter
7w2588 Lines Gp-Fuel Injection
9y3702 Lines Gp-Fuel Injection
7c2799 Pump Gp-Fuel
9y5117 Pump Gp-Fuel Injection
4p9938 Pump Gp-Fuel Injection
9y5128 Separator Gp-Water
Hydraulic System
8q2811 Chassis Level Section - First Type
8q2811 Chassis Level Section - Second Type
8q2461 Compensating Manifold With By-Pass
8Q***61Compensating Manifold With By-Pass1
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838526 Compensating Valve Group (Second Type)
985801 Control Valve Group (Fixed Frame Machines Only)
897300 Counterbalance Valve Group
985939 Dual Overcentre Valve Group (Frame Leveling Machines)
897302 Dual Overcentre Valve Group (Frame Leveling Machines)
08***02Dual Overcentre Valve Group (Frame Leveling Machines)1
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815602 Dual Pilot Check Valve Group
816328 E.H.P. Group
816314 End Section Group
815478 Filler - Breather
101676 Hydraulic And Fuel Tank Group
897493 Hydraulic And Fuel Tank Group
985838 Hydraulic And Fuel Tank Group
838536 Hydraulic And Fuel Tank Group
985839 Hydraulic And Fuel Tank Mounting Group
09***39Hydraulic And Fuel Tank Mounting Group1
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838548 Hydraulic And Fuel Tank Mounting Group
08***48Hydraulic And Fuel Tank Mounting Group1
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1010677 Hydraulic And Fuel Tank Mounting Group
10***77Hydraulic And Fuel Tank Mounting Group1
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897881 Hydraulic Piping Group - Chassis (Rt50 And Rtc60)
08***81Hydraulic Piping Group - Chassis1
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897881 Hydraulic Piping Group - Chassis - Part 2 Of 2 (Rt50 And Rtc60)
08***81Hydraulic Piping Group - Chassis1
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838541 Hydraulic Piping Group-Chassis - Part 1 Of 2 (Rt50 And Rtc60)
08***41Hydraulic Piping Group - Chassis1
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838541 Hydraulic Piping Group - Chassis - Part 2 Of 2 (Rt50 And Rtc60)
08***41Hydraulic Piping Group - Chassis1
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6r7892 Hydraulic Piping Group - Chassis - Part 1 Of 2 (Rt50 Sa)
6R***92Hydraulic Piping Group - Chassis1
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897881 Hydraulic Piping Group - Chassis - Part 1 Of 2 (Rt50 And Rtc60)
08***81Hydraulic Piping Group - Chassis1
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6r7892 Hydraulic Piping Group - Chassis-Part 2 Of 2 (Rt50 Sa)
6R***92Hydraulic Piping Group - Chassis1
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985767 Hydraulic Piping Group - Differential Lock (Rt60)
09***67Hydraulic Piping Group - Differential Lock1
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985242 Hydraulic Piping Group - Differential Lock (Rt50 Rt50 Sa And Rtc60)
09***42Hydraulic Piping Group - Differential Lock1
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838542 Hydraulic Piping Group - Differential Lock (Rt50 Rt50 Sa Rtc60 And Rt60)
08***42Hydraulic Piping Group - Differential Lock (Rt50 Rt50 Sa Rtc60 And Rt60)1
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8q6746 Hydraulic Piping Group - Differential Lock (Rt60)
8Q***46Hydraulic Piping Group - Differential Lock (Rt60)1
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6r9234 Hydraulic Piping Group-Chassis-Part 1 Of 2 (Rt60)
6r7894 Hydraulic Piping Group-Chassis-Part 2 Of 2 (Rt50, Rt50 Sa, Rtc60)
6r9234 Hydraulic Piping Group-Chassis-Part 2 Of 2 (Rt60)
6r7894 Hydraulic Piping Group-Chassis-Part 2 Of 2 (Rt50 Sa)
985765 Hydraulic Piping Group - Chassis-Part 2 Of 2 (Rt60)
838546 Hydraulic Piping Group-Chassis - Part 1 Of 2 (Rt60)
6r7894 Hydraulic Piping Group-Chassis-Part 1 Of 2 (Rt50, Rt50 Sa, Rtc60)
985765 Hydraulic Piping Group - Chassis-Part 1 Of 2 (Rt60)
838546 Hydraulic Piping Group-Chassis - Part 2 Of 2 (Rt60)
6r7894 Hydraulic Piping Group-Chassis-Part 1 Of 2 (Rt50 Sa)
6r7834 Hydraulic Tow Hitch Group (Usa)
08***58Rear View Mirror Group1
6R***83Harness Assembly - Frame Level Sw.1
6R***05Harness As. - Tow Hitch Down Sol1
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6r7835 Hydraulic Tow Hitch Group (Cosa)
08***58Rear View Mirror Group1
6R***83Harness Assembly - Frame Level Sw.1
6R***05Harness As. - Tow Hitch Down Sol1
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985769 Hydraulic Valve - 4 Spool - Frame Leveling Machines Only - Second Type
815408 Hydraulic Valve - 4 Spool - Frame Leveling Machines Only
6r7837 Hydraulic Valve Group (4 Spool) - All Electric
6R***37Hydraulic Valve Group (4 Spool) - All Electric1
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985802 Main Hydraulic Valve Group - 3 Spool - Fixed Frame Machines Only
838540 Main Hydraulic Valve Group - 4 Spool - Frame Leveling Machines Only
897878 Main Hydraulic Valve Group - 4 Spool - Frame Leveling Machines Only
838539 Main Hydraulic Valve Group - 3 Spool - Fixed Frame Machines Only
985764 Main Hydraulic Valve Group - 4 Spool - Frame Leveling Machines Only
09***64Main Hydraulic Valve Group - 4 Spool - Frame Leveling Machines Only1
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897299 Overcenter Lock Valve Group
838439 Pipe Clamp Retrofit Mod.
8q2807 Priority Inlet Section
897447 Hydraulic Pump Group
897442 Pump Group-Piston Slipper -Part 1 Of 2
897442 Pump Group-Piston Slipper -Part 2 Of 2
815603 Relief Valve Group
897301 Single Overcenter Valve Group
8q2458 Solenoid Operated Valve
816311 Spool Section Group - Boom
816313 Spool Section Group - Chassis (Frame Leveled Machines)
816310 Spool Section Group - Forks
816312 Spool Section Group - Telescope
08***12Spool Section Group - Telescope1
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897484 Hydraulic And Fuel Tank Mounting Group
844313 Directional Control Valve - 4 Spool. (All Electric)
985794 Valve End Section Group
8q2491 Valve Group - Compensating Cylinder Retrofit Kit
8Q***91Valve Group - Compensating Cylinder Retrofit Kit1
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815582 Valve Group - Compensating Cylinders
08***82Valve Group - Compensating Cylinders1
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8i5531 Valve Gp-Pressure And Flow Compensator
8I***31Valve Group - Pressure And Flow Compensator1
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Intake And Exhaust System
9y5120 Elbow Gp-Exhaust
7c3110 Fumes Disposal Gp
7c0247 Manifold Gp-Exhaust
7w2565 Manifold Gp-Exhaust
9y5127 Manifold Gp-Inlet
7w2585 Manifold Gp-Inlet
7w2573 Turbocharger Gp
7w2584 Turbocharger Gp
Lubrication System
6i3040 Cooler Gp-Filter Base & Engine Oil
6I***40Cooler Group-Filter Base & Eng Oil1
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7w6220 Filler Gp-Engine Oil
7W***20Filler Group-Oil; Filler Gp-Engine Oil1
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9y5126 Filter & Cooler Gp-Engine Oil
9Y***26Filter & Cooler Group-Engine Oil1
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9y5121 Gauge Gp-Oil (Dipstick)
9Y***21Gauge Group-Oil Level (Dipstick)1
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9y5131 Lines Gp-Engine Oil
4p9073 Lines Gp-Engine Oil
9y5123 Pan Gp-Oil
1w8357 Pump Gp-Engine Oil
7w2553 Pump Gp-Gerotor
7W***53Pump Group-Gerotor; Engine Oil Pump Group1
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Starting And Electrical System
8c5510 Alternator Gp
9y5104 Mounting Gp-Alternator
7c9269 Mounting Gp-Starting Motor
7C***69Mounting Group-Starting Motor; Mounting Gp- Starting Motor1
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9y5115 Sender Gp
7w2606 Starting Aid Gp
9y5107 Starting Aid Gp
7c4622 Starting Motor Group - Electric - 12 Volt
9g6941 Starting Motor Group - Electric - 12 Volt
9g7199 Switch Gp
Steering System
897526 Steering Console Group
897897 Directional Control (Selector) Valve Group
08***97Directional Control (Selector) Valve Group1
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985871 Directional Control Valve Group
09***71Directional Control Valve Group1
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897883 Hydraulic Piping Group - Steering (Rt50 And Rtc60)
08***83Hydraulic Piping Group - Steering1
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6r7893 Hydraulic Piping Group - Steering (Rt50 Sa)
6R***93Hydraulic Piping Group - Steering1
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985766 Hydraulic Piping Group - Steering (Rt60)
09***66Hydraulic Piping Group - Steering1
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6r9235 Hydraulic Piping Group - Steering (Rt60)
6R***35Hydraulic Piping Group - Steering1
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6r7895 Hydraulic Piping Group - Steering
6R***95Hydraulic Piping Group - Steering1
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9t8012 Pump Group - Metering (Steering Valve)
844079 Steering Column Group
8q5355 Steering Console Group
897778 Steering Piping Group - Cab (Rt50 Rtc60 And Rt60)
Transmission And Drivetrain
9w1355 Drive Gp-Flexible
897954 Drive Shaft Group
897955 Drive Shaft Group
985216 Drive Shaft Group
898016 Drive Shaft Group
985745 Gear Change Group (Rt50, Rt50 Sa And Rtc60)
985822 Gear Change Group (Rt60)
897908 Hydraulic Piping Group - Transmission
08***08Hydraulic Piping Group - Transmission1
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897952 Propshaft Group (4x4) (Rt50 And Rtc60)
985463 Propshaft Group (4x4)(Rt60)
985217 Propshaft Group (4x4) (Rt50 Rt50 Sa And Rtc60)
6r7708 Propshaft Guard Group (Rt50 Sa)
6y3864 Pump Gp-Hydraulic
6Y***64Pump Group-Hydraulic; (Hydraulic)1
6Y***41Pump Group-Crescent1
9P***33Pump Group-Gerotor (Concentric Gerotor)1
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897530 And 897531 Transfer Gearbox - Part 1 Of 2
897530 And 897531 Transfer Gearbox - Part 2 Of 2
985212 And 985213 Transfer Gearbox Group
897532 And 897533 Transfer Gearbox Group
985210 And 985211 Transfer Gearbox Groups
897574 Transmission Group
8q2710 Transmission Group
897573 Transmission Gp-Direct Drive-Part 1 Of 3
08***73Transmission Group-Direct Drive1
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897573 Transmission Gp-Direct Drive-Part 3 Of 3
08***73Transmission Group-Direct Drive1
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897573 Transmission Gp-Direct Drive-Part 2 Of 3
08***73Transmission Group-Direct Drive1
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6y2558 Valve Gp-Control

RT50 serial number reference

On this Cat-badged telehandler platform, read the first three characters of the serial number as the prefix (4XG or 5PF) identifying the parts/production range, and the digits that follow as the sequential unit number; match that prefix to the correct parts manual section before ordering parts. Exact PIN plate location for this specific machine is not documented in available sources - check the frame/chassis area near the cab or front axle per typical practice for this era of build, and confirm with dealer or the operator's manual if the plate cannot be located.

PrefixIdentifies
4XGRT50 / RT50 SA / RTC60 / RT60 shared telescopic materials handler platform, 4.236 diesel engine
5PFRT50 / RT50 SA / RTC60 / RT60 shared telescopic materials handler platform, 4.236 diesel engine

Frequently asked questions

What engine does the Caterpillar RT50 use?

The base RT50 runs a naturally aspirated Perkins-built Cat 4.236 diesel, a 3.9-liter (235.9 cu in) mechanical inline-four with no electronic engine controls. The turbocharged T4.236 belongs to the related RT50 SA, not the base RT50; the larger RT80 and RT100 use a different, unrelated Cat 3114T engine.

What is the operating weight of the Caterpillar RT50?

Caterpillar did not widely publish a standalone operating weight figure for the RT50; it varies by tire, counterweight, and attachment configuration. Its rated lift capacity of roughly 2,270 kg (5,000 lb) places it at the light end of the RT50/RT60/RT80/RT100 rough-terrain family. Verify exact weight against the data plate or OMM for your serial range.

What replaced the Caterpillar RT50?

No direct factory successor is documented under the RT50 name. Production ran through the 1990s, ahead of the 2005 Cat/JLG telehandler alliance. The JLG-built Cat TH-series telehandlers that followed are a different platform, not a badge-for-badge replacement for the RT50.

What RT50 owners discuss

What powertrain does the RT50 run, and what drive behaviors do owners report?
The RT50 pairs a naturally aspirated Perkins 4.236 four-cylinder diesel with a powershift transmission driven through a torque converter (the RT50 SA sibling adds a turbocharger on the same base engine). On this telehandler family, a recurring complaint is intermittent loss of drive in forward or reverse after the machine sits idle for a while, with the inching brake taking longer than normal to re-engage before drive returns on its own or after a restart. Mechanics chase this by checking the neutral-start relay and its wiring first, then torque converter charge pressure, before condemning the transmission itself. Have your dealer verify torque converter and transmission pressures before authorizing major transmission work.
Are there known hydraulic quirks on this machine?
The boom, steering, and attachment circuits run off a pressure-and-flow compensated (load-sensing) piston pump. When boom movement feels sluggish, doesn't hold a load level, or binds partway through a lift cycle, a worn or misadjusted compensator valve or a marginal relief setting is the more common cause than a failed pump outright - swap parts only after checking those settings. Day-to-day, the most frequent finds on a walk-around are seeping hose fittings and quick-disconnects along the boom, not internal pump failure.
What wear patterns show up on the boom and chassis over time?
Boom wear pads at the front and rear of each telescoping section are the first thing to wear; the pads have a chamfered upper edge, and once that chamfer wears flat it's time to replace them, since worn pads let the boom sections rattle and score. Leaf chains stretch with age, and over-tightening them during adjustment only accelerates wear - chain chatter or binding when the boom is extended near horizontal is a classic symptom of stretched or over-tensioned chain rather than a hydraulic fault. The rear axle oscillates for stability on rough ground, and its pivot pins and bushings wear over time, giving a loose or wandering feel in the steering that's easy to misdiagnose as a tire or alignment issue. Have your dealer verify wear-pad clearance and chain tension as part of any boom inspection.
What engine quirks are typical for the 4.236 in this series?
Owners and mechanics working on the Perkins 4.236 (the engine behind the base RT50, with a turbocharged version in the SA variant) most often report white smoke on a cold start, which usually points to a head gasket or cracked cylinder head rather than worn rings. The CAV DPA-style injection pump on this engine is sensitive to air ingress - a loose fitting on the lift-pump side of the fuel system is enough to cause hard starting or a no-start, and is frequently mistaken for a failed injection pump. Correct fuel priming/bleeding procedure resolves a large share of these complaints without touching the pump internals.
What electrical issues come up, given this machine predates modern ECM controls?
This generation has no engine or transmission control module, so electrical complaints trace almost entirely to corroded connectors, aging relays, and interlock switches rather than sensor faults. The neutral-start relay and its wiring feed the starter circuit and are a common no-start point, especially where corrosion has crept into the cab floor harness. Separately, the operator seat switch and lap-bar switch both have to be satisfied before hydraulics unlock - a blinking warning light and dead hydraulics with the engine running usually traces back to one of these rather than a hydraulic fault. Cleaning terminals and applying dielectric grease resolves many of these intermittent complaints. Have your dealer verify the safety-interlock circuit before bypassing or replacing a switch.
How do tire choice and steering feel connect to wear on this machine?
The RT50 and its close siblings run on a common large rough-terrain tire size available in pneumatic or solid/foam-filled configurations; solid tires are a common swap on sites with debris or puncture risk, traded off against a harsher ride. Because the rear axle oscillates, uneven front tire wear combined with a loose or wandering steering feel is often the first sign of worn axle pivot bushings or a steering linkage out of adjustment, not a tire quality problem. Have your dealer verify axle pivot wear and steering alignment before replacing tires to chase a wear pattern.
What should a buyer check on a used RT50 before purchase?
Confirm which engine variant is fitted - naturally aspirated base RT50 or the turbocharged SA - and that the paperwork and any prior repair history line up with it. Walk the boom and check wear-pad chamfers front and rear on each section, look for chain chatter or binding when the boom is extended near horizontal, and check every hose and fitting along the boom for seepage under load. Cycle the boom up/down and in/out slowly to feel for sloppiness or binding, which points to worn pads, a stretched chain, or a compensator issue. Check the rear axle pivot for play and test steering response on uneven ground. On the drivetrain, run the machine through neutral and both directions after it has sat, watching for a delayed inching-brake response or a momentary loss of drive. Review engine oil, coolant, hydraulic, and transmission fluid condition, and ask about fuel-system bleeding history given the injection pump's sensitivity to air ingress. Have your dealer perform a full pre-purchase inspection, including transmission and hydraulic pressure checks, before finalizing the deal.

Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.

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