Caterpillar 226B3
Caterpillarskid steer loader

Caterpillar 226B3

Maintenance schedule, common problems & OEM parts breakdown

The Caterpillar 226B3 is a mid-size skid steer loader in Cat's B3 lineup, sized between the smaller 216B3 and the larger 236B3/242B3/252B3 models. It runs a turbocharged Cat C2.2 T four-cylinder diesel rated at 42 kW (56 hp) net power and 45.5 kW (61 hp) gross power, versus the naturally aspirated Cat C2.2 used in the 216B3. Baseline operating weight is 2641 kg (5822 lb), with rated operating capacity of 680 kg (1500 lb), or 726 kg (1600 lb) with the optional counterweight; actual as-built weight varies with cab, counterweight and hydraulics options. The B3 series entered production around 2012-2013 to meet Tier 4 Interim/Stage IIIA emissions and ran through the mid-2010s, following the earlier 226B (and the original 226 before it) and preceding the Tier 4 Final 226D3. Cat offered it as open ROPS or enclosed cab, with standard or high-flow hydraulics and a manual or hydraulic quick coupler as the main configuration choices.

Across the numbered B-series lineage, Cat added a turbocharger and higher output to the 226 designation, moved the whole B3 range to Tier 4 Interim compliance without a diesel particulate filter, and gave the 226B3 a high-flow hydraulic option (104 L/min versus 61 L/min standard) not offered on the smaller 216B3. Serviceability also improved: a tilt-up cooling package, a rear door that opens 90 degrees, and a tilting cab for hydraulic access carried over from earlier B-series machines but were refined for the B3 generation. On the used and parts market, the 226B3 stays attractive because it predates the more complex aftertreatment of the following D3 and Next Generation loaders, while sharing its chaincase, hydrostatic drivetrain and many wear components with siblings across the B3 family (216B3, 236B3, 242B3, 252B3, plus the 247B3/257B3 multi-terrain loaders and 259B3 compact track loader), which keeps parts interchange and support strong today.

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 226B3 specifications

Engine

Engine modelCat C2.2T, turbocharged 4-cylinder inline diesel (Series 3 update; earlier 226/226B used a different, larger-displacement Cat engine, not the C2.2)
Gross power45.5 kW (61 hp)
Net power42 kW (56 hp)
Displacement2.2 L (134 cu in)
Cylinders4, in-line
Emissions tierU.S. EPA Tier 4 Interim, EU Stage IIIA, Bharat Stage III (the later 226D3 moved to Tier 4 Final/Stage V on the same C2.2 block)

Weights

Operating weight2,640-2,641 kg (5,820-5,822 lb), standard configuration
Shipping weight2,405 kg (5,290 lb)
Ground pressureNot published in available spec literature

Dimensions

Length, with bucket on ground3.23-3.24 m (10.61 ft / 127.4 in)
Length, without bucket2.52 m (8.27 ft)
Width, over tires1.52-1.53 m (5.01 ft / 60 in)
Height, to top of cab1.95-1.96 m (6.40 ft)
Height, boom fully raised3.71 m (146 in)
Wheelbase0.99 m (39 in)
Ground clearance195-203 mm (7.7-8.0 in), varies by source

Performance

Travel speed (forward/reverse)12.7 km/h (7.9 mph), single-speed hydrostatic drive
Rated operating capacity (50% of tipping load)680 kg (1,500 lb)
Tipping load1,360 kg (3,000 lb)
Bucket breakout force1,852 kg (4,083 lb)
Lift height to hinge pin2,855 mm (112.4 in)
Dump height2,170 mm (85.4 in)
Maximum bucket dump angle40 degrees
Loader hydraulic flow, standard61 L/min (16 gpm)
Loader hydraulic flow, high-flow option102-104 L/min (27 gpm)
Hydraulic system relief pressure23,000 kPa (3,335 psi)
GradeabilityNot published in available spec literature

Service capacities (summary)

Fuel tank58 L (15.4 gal)
Hydraulic system, total55 L (14.5-14.6 gal)
Engine oil10 L (2.7 gal)
Cooling system10 L (2.7 gal)
Drive chain case, each side6.0 L (1.6 gal)

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

226B3 fluids & capacities

SystemCapacityRecommended fluid
Engine crankcase (with filter)10.0 L (2.6 US gal)Cat DEO-ULS multigrade diesel engine oil. Use SAE 10W-30 in cold-weather operation and SAE 15W-40 for normal to warm ambient conditions. Oil should meet Cat ECF diesel engine oil service category, matched to the Tier 4 Interim / Stage IIIA C2.2T engine fitted to this machine.
Cooling system10.0 L (2.6 US gal)Cat DEAC (Diesel Engine Antifreeze/Coolant) premix is the standard factory fill. Cat ELC (Extended Life Coolant) is the extended-service alternative. Do not mix ELC and DEAC/conventional coolant in the same system.
Fuel tank58.0 L (15.4 US gal)Ultra-low-sulfur diesel fuel (ULSD, 15 ppm sulfur maximum), required for the Tier 4 Interim / Stage IIIA compliant C2.2T engine.
Hydraulic tank35.0 L (9.2 US gal)Cat HYDO Advanced multigrade hydraulic oil, or Cat DEO. SAE 15W-40 for normal to warm climates, SAE 5W-40 for cold-weather starts.
Hydraulic system, total fill (tank, lines, cylinders, drive motors)55.0 L (14.5 US gal)Same fluid as hydraulic tank: Cat HYDO Advanced or Cat DEO, SAE 15W-40 (warm) or SAE 5W-40 (cold-weather).
Final drive / chain case, each side6.0 L (1.6 US gal) per sideCat DEO-ULS diesel engine oil, SAE 15W-40 for normal conditions or SAE 5W-40 for cold-weather starts. Same oil family as the engine crankcase fill.
Grease, all pin and bushing points (spec only, no fill capacity)Not applicable - lubricated by grease gun at scheduled intervals, no reservoir capacityNLGI Grade 2 multipurpose grease (Cat MPGM) for standard-duty pins and bushings. Cat Advanced 3Moly or Ultra 5 Moly grease is the extended-interval option for high-load or high-cycle pins.

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

Caterpillar 226B3 maintenance schedule

Service intervalTasks
Every 50 h
  • Check engine oil level and hydraulic tank oil level before starting the machine.
  • Check engine coolant level at the radiator expansion bottle.
  • Inspect tires for cuts, wear and correct inflation pressure.
  • Test the backup alarm, seat belt and operator-presence interlock system.
  • Grease the lift arm and cylinder pivot pins.
  • Drain water and sediment from the fuel/water separator.
Every 250 h
  • Change engine oil and the engine oil filter on the C2.2 T engine.
  • Inspect the dual-element, radial-seal air filter primary element and clean or replace as needed.
  • Check alternator output and battery condition.
  • Check drive chain tension inside each chaincase.
  • Clean the side-by-side radiator and hydraulic oil cooler screens.
Every 500 h
  • Replace the spin-on hydraulic system filter.
  • Replace the fuel filter/water separator element.
  • Pull an S·O·S hydraulic oil sample from the standard sampling valve.
  • Check and top off chaincase oil level on each side.
  • Inspect hydrostatic hoses and fittings for leaks, chafing or wear.
Every 1,000 h
  • Change the chaincase oil on each side of the machine.
  • Pull a coolant sample and check extended-life antifreeze condition.
  • Inspect ROPS/FOPS cab mounting hardware and the tilt-cab hinge and lock.
  • Check the spring-applied, hydraulically-released parking brake for proper holding.
  • Inspect quick-coupler pins and wear plates for play.
Every 2,000 h
  • Change the hydraulic system oil and hydraulic tank breather.
  • Inspect the hydrostatic drive pump and wheel motors for wear or leakage.
  • Check and adjust engine valve lash on the C2.2 T engine.
  • Evaluate cooling system hoses and the thermostat; flush the system if coolant condition warrants it.
Every 6,000 h
  • Replace the extended-life coolant at the end of its rated service life.
  • Have the dealer inspect chain, sprocket and hydrostatic component wear to plan rebuild or replacement.
  • Inspect the ROPS/FOPS structure for cracks, corrosion or damage before continued use.
  • Review accumulated S·O·S oil-sample trends across engine, hydraulic and chaincase oil to schedule major overhaul work.

Servicing the 226B3 beyond the schedule

Predictive Maintenance and Fluid Analysis

The 226B3 ships with a standard S·O·S sampling valve on the hydraulic circuit. Pull a sample at every hydraulic filter change to catch wear metals and moisture before a hydrostatic pump or drive motor fails. Trend engine oil analysis on the turbocharged C2.2 T the same way, since turbo bearing wear shows up early in soot and viscosity readings. Log chaincase oil condition on both sides. Catching contamination early on this machine heads off a full pump, motor or chain rebuild.

Corrective and Common Repairs

Common 226B3 repair calls center on the four-wheel chain drive: stretched chains and worn sprockets inside the chaincases cause drift and vibration, usually traced back to skipped chain-tension checks or low chaincase oil. The turbocharged C2.2 T is more sensitive to fuel and air restriction than the naturally aspirated 216B3 engine, so a clogged fuel filter or dirty radial-seal air filter shows up as power loss or hard starting. Also check the hydrostatic charge pressure and tilt-up cooling package hinges, a frequent source of coolant and hydraulic leaks.

Overhaul and Rebuild Points

At high hours, plan on rebuilding or replacing the hydrostatic drive pump and wheel motors, the usual wear-out point on a chain-drive skid steer this size. Chain and sprocket sets inside each chaincase wear as a set and are normally renewed together rather than piecemeal. The C2.2 T turbocharger and injectors are the next likely overhaul items given the added heat and boost load versus the base C2.2. Lift and tilt cylinders should be resealed once rod scoring or drift appears.

Seasonal and Environment Servicing

The 226B3 comes standard with extended-life antifreeze rated to -36°C (-33°F) and automatic glow-plug activation for cold starts; add the optional block heater and cold-weather hydraulic oil in sustained sub-zero climates. In hot, dusty applications, clean the dual-element radial-seal air filter and the side-by-side radiator and hydraulic oil cooler more often, and use the tilt-up cooling package and belly-pan cleanout to clear packed debris. Standard hydraulically driven fan or the optional variable-speed demand fan both need the cooling package kept clear to work.

226B3 fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
CID 0100-01Engine oil pressure is critically low for the current engine speed.Low oil level, a plugged oil filter, a worn oil pump, or a faulty oil pressure sensor/wiring.Shut the engine down at once, check oil level and filter condition, and inspect sensor wiring before restarting.
CID 0110-00Engine coolant temperature is above the normal operating range.Low coolant level, a blocked radiator screen or core, a weak fan drive, or a stuck thermostat.Reduce load and let the engine idle down, then check coolant level and clear debris from the radiator screen once it is safe to do so.
CID 0168-03/04System (battery) voltage reads above normal (03) or below normal (04).FMI 03: faulty voltage regulator or alternator. FMI 04: weak or discharged battery, corroded cable, or a failed alternator.Test battery state of charge and alternator output, then inspect battery cable and ground connections for corrosion or looseness.
CID 0190-00Engine speed has exceeded the normal operating range (overspeed).A throttle position sensor or linkage fault, or a faulty engine speed sensor.Check the throttle position sensor and linkage for binding, and inspect the engine speed sensor wiring.
CID 0070-03/04Parking brake switch circuit reads open or shorted.A damaged park-brake limit switch, a chafed harness near the brake linkage, or a corroded connector.Inspect the park-brake switch and its harness routing, then check continuity across the connector.
CID 1188Interlock override / seat-bar (arm rest) switch circuit fault.A faulty arm-bar position switch, a misadjusted sensor, or a damaged console harness.Check the arm-bar up/down switch, confirm its adjustment, and inspect the console harness for damage.
CID 1180No. 1 auxiliary hydraulic modulating valve circuit fault.A damaged valve coil/solenoid, a chafed harness to the valve, or a joystick auxiliary control fault.Check the auxiliary valve coil resistance and harness continuity, then verify the joystick auxiliary command signal.

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

226B3 attachments & work tools

General-purpose & specialty buckets

Bucket line for this size class covers general purpose, high-capacity, dirt, utility, light-material and multi-purpose profiles plus industrial and utility grapple buckets. Width sits around 1525 mm (60 in) to match the machine's tread width class, with general-purpose heaped capacity around 0.36 m3 (about 0.47 yd3); exact capacity varies by bucket style and cutting-edge type. All run on the standard auxiliary hydraulic circuit; grapple versions add a hydraulic clamp cylinder.

Forks and material handling

Pallet forks and industrial/utility grapple forks are offered for palletized and loose material handling, alongside a material-handling arm (jib-style boom) for below-the-hook lifting. Fork carriages use the same coupler as buckets; grapple forks draw on the standard auxiliary hydraulic circuit for clamp actuation.

Augers

Auger drive units for this loader class come in direct-drive, single-planetary and double-planetary configurations, with drive torque scaling from roughly 2300 Nm (about 1,700 lb-ft) on the lightest unit up to roughly 6800 Nm (about 5,000 lb-ft) on the heaviest planetary drive. Bit size is matched to soil type and hole diameter; the largest drives are best matched to a high-flow auxiliary circuit.

Backhoe attachment

A dedicated backhoe work tool is offered for this skid steer class, converting the loader into a compact excavating unit for utility trenching and post-hole work. It mounts through the standard coupler and runs off the loader's own hydraulics for boom, stick and bucket function.

Blades

Angle blades and dedicated dozer blades are offered for grading, snow pushing and site cleanup. Angle blades pivot hydraulically off the auxiliary circuit, while straight dozer-style blades are typically float- and angle-adjusted mechanically.

Brooms

Angle brooms, pickup brooms and utility brooms are offered for sweeping and light debris clearing. All are rotary brooms driven from the auxiliary hydraulic circuit; pickup versions add a hopper for debris collection instead of side-casting.

Brushcutters and mowing heads

Rotary brushcutter/mower heads are offered for vegetation clearing and roadside mowing on the standard auxiliary hydraulic circuit. Heavier brush and continuous-duty cutting benefit from the 226B3's optional high-flow circuit.

Cold planers

A cold planer (asphalt milling) attachment is offered for this class for small-scale pavement removal and patch prep. It is a high hydraulic-demand tool best matched to the 226B3's optional high-flow circuit rather than base standard flow.

Hydraulic hammers (breakers)

Hydraulic breakers sized for this loader's power class are offered for light demolition, rock breaking and hard-material trenching. Breaker class is matched to the carrier's roughly 42-45.5 kW (56-61 hp) engine output and available auxiliary flow, so heavier breaker classes favor the optional high-flow package.

Landscape tillers, rakes and power box rakes

Landscape tillers, landscape rakes and power box rakes are offered for seedbed prep, soil conditioning and debris windrowing in landscaping and turf work. These run as continuous-duty tools on the standard auxiliary hydraulic circuit for this size class.

Shears

A shear attachment is offered for demolition and brush/vegetation cutting duty. Jaw closing force depends on auxiliary hydraulic pressure and flow, so heavier cutting tasks are better suited to the high-flow-equipped 226B3.

Snow blowers

A hydraulically driven snow blower is offered for this class, using continuous auxiliary flow to spin the auger/impeller, with work-tool electrical (available on the deluxe control packages) enabling remote chute rotation from the cab.

Stump grinders

A stump grinder work tool is offered for this loader class, using auxiliary hydraulics to spin the cutter wheel. Grinding productivity scales with available flow, favoring the optional high-flow circuit over base standard flow.

Trenchers and wheel saws

Chain trenchers and wheel saws are offered for utility-line trenching and cutting in soil, asphalt or light rock. Both are flow-hungry tools; deeper trenching or harder cutting duty runs better on the 226B3's optional high-flow package than on base standard flow.

Vibratory compactors

A vibratory compactor attachment (plate or roller style) is offered for backfill and trench compaction work, running off the standard auxiliary hydraulic circuit.

Coupler / mounting system

Work tools attach through a standard mechanical quick coupler using two hand-operated high-leverage levers for pin engagement, or an optional hydraulic quick coupler that lets the operator lock and release tools from the cab. Both share the common loader-arm mounting frame used across the skid steer class, so tools built to the general industry attach pattern fit alongside Cat-branded work tools.

Auxiliary hydraulics and control packages

Standard auxiliary flow is about 61 L/min (16 gal/min) at roughly 23,000 kPa (3,335 psi). The 226B3 (not offered on the smaller 216B3) adds an optional high-flow circuit rated about 104 L/min (27 gal/min) at the same pressure for demanding tools such as cold planers, breakers and mowers. Buyers select one of four control packages: on/off basic auxiliary hydraulics, proportional deluxe auxiliary hydraulics, proportional deluxe with a work-tool electrical harness, or the high-flow package (226B3 only); the latter two are needed for electro-hydraulic or continuously variable work tools.

Cab, guarding and other factory options

Enclosed-cab comfort packages add a cab debris barrier plus glass or polycarbonate doors and side windows, useful protection when running brush cutters, mowers or stump grinders that throw debris; ROPS and FOPS Level I structure is standard across all configurations. Other factory options tied to work-tool duty include a counterweight (raises rated operating capacity to about 726 kg / 1,600 lb on the 226B3), self-leveling loader linkage for repetitive lift-and-carry work, and cold-climate hydraulic oil for winter attachment operation.

All 226B3 assemblies by section

Every catalogued assembly group for the Caterpillar 226B3. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Air Inlet And Exhaust System
242-0171 Air Cleaner Gp
228-1773 Air Cleaner Gp
280-8365 Lines Gp-Air
272-3046 Muffler Gp
272-3047 Muffler Gp
317-0981 Turbocharger Gp
Basic Engine
322-4916 Camshaft Gp
322-4909 Crankshaft Gp
322-4908 Cylinder Block Gp
308-1859 Cylinder Head As
322-4911 Cylinder Head Gp
229-8730 Drain Gp-Engine Oil
308-2291 Flywheel Gp
280-8396 Guard Gp-Belt
28***96Guard Group-Belt, Axle Housing; Axle Block1
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316-7030 Housing Gp-Flywheel
322-4914 Housing Gp-Front
339-3017 Kit-Front Gear
317-0982 Lifting Gp-Engine
241-5789 Mounting Gp-Engine -Hardware
24***89Mounting Group-Engine; -Hardware1
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228-1764 Mounting Gp-Engine -Supports
22***64Mounting Group-Engine; -Supports1
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315-7813 Mounting Gp-Fan
316-6997 Pan Gp-Oil
322-4910 Piston Gp
322-4924 Plate Gp-Cover -Blanking
321-6740 Pulley Gp-Crankshaft
308-2294 Pulley Gp-Water Pump
30***94Pulley Group-Water Pump, Pipe (Rlb1)1
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308-2306 V-Belt Gp -Fan Drive
30***06V-Belt Group; -Water Pump, Pipe (R1j1)1
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322-4912 Valve Mechanism Gp
293-2167 Valve Mechanism Gp
Cooling System
317-0980 Housing Gp-Water Regulator
228-1762 Mounting Gp-Rad & Oil Cooler
22***62Mounting Group-Rad & Oil Cooler1
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317-0979 Pump Gp-Water
228-3359 Radiator & Hyd Oil Cooler Gp
22***59Radiator & Hydraulic Oil Cooler Group1
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228-1783 Radiator & Oil Cooler Mtg Gp
22***83Radiator & Oil Cooler Mtg Group1
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Electrical And Starting System
3e-7584 Lamp Gp-Head & Signal -Rh
316-6963 Alternator Gp-Charging
225-7952 Battery Gp -Heavy-Duty
225-7950 Battery Gp -Standard
328-2345 Electronics Gp-Machine
316-6896 Glow Plug Gp
172-4445 Heater Gp-Jacket Water
154-3928 Heater Gp-Jacket Water
172-4446 Heater Gp-Jacket Water
154-3927 Heater Gp-Jacket Water
234-7727 Lamp Gp-Flood
234-4328 Lamp Gp-Flood
23***28Lamp Group-Flood; -Front, Rear, Wide Range1
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328-2344 Lamp Gp-Stop & Tail -Rear
328-2346 Lamp Gp-Stop & Tail -Rear
142-8634 Lamp Gp-Stop & Tail
14***34Lamp Group-Stop & Tail; -Stop, Tail1
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142-7503 Lamp Gp-Stop & Tail
14***03Lamp Group-Stop & Tail; -12-Volt1
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309-1325 Lamp Gp-Warning Beacon -Amber
30***25Lamp Group-Warning Beacon; -12-Volt, Amber1
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216-4746 Lighting Gp-Flood -Rear
218-6425 Lighting Gp-Flood -Front
328-2333 Lighting Gp-Roading
258-4135 Relay Gp -Main Power
322-4928 Solenoid Gp-Shutoff
322-4917 Starting Motor Gp-Electric
184-1564 Switch Gp-Pressure -Brake Light
18***64Switch Group-Pressure; -Brake Light1
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328-2348 Switch Gp-Pressure
32***48Switch Group-Pressure; -Brake Light1
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316-6890 Switch Gp-Pressure
308-2317 Switch Gp-Temperature -Coolant
30***17Pipe (Lg2), Switch Group-Temperature; -Engine Coolant1
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225-7948 Wiring Gp-Air Conditioner
328-2272 Wiring Gp-Cab
328-2350 Wiring Gp-Chassis
328-2338 Wiring Gp-Engine
230-3743 Wiring Gp-Horn -With Mounting
23***43Wiring Group-Horn; -With Mounting1
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328-2342 Wiring Gp-Machine -Demand Fan
32***42Wiring Group-Machine; -Demand Fan1
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328-2355 Wiring Gp-Work Tool
Engine Arrangement
292-5719 Engine Ar-Primary
295-7023 Engine Ar-Primary
326-5360 Installation Ar-Engine
Frame And Body
218-5650 Bumper Gp -Rear
278-1293 Conversion Gp-Roading -Italy
27***93Conversion Group-Roading; -Italy1
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278-1292 Conversion Gp-Roading -Germany
27***92Conversion Group-Roading; -Germany1
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142-8830 Counterweight Gp
183-7122 Counterweight Gp
326-5609 Enclosure Gp-Engine
326-4788 Frame Gp-Loader
326-5426 Frame Gp-Machine
156-9809 Guide Gp-Lines
15***09Guide Group-Lines; -Auxiliary Hydraulic1
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218-6709 Lifting Gp-Machine
218-6708 Lifting Gp-Machine
238-7671 Mirror & Mtg Gp-Rear View -With Roading Light Mount
23***71Mirror & Mtg Group-Rear View; -With Roading Light Mount1
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238-7672 Mirror & Mtg Gp-Rear View -With Roading Light Mount
23***72Mirror & Mtg Group-Rear View; -With Roading Light Mount1
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225-7963 Mounting Gp-Registration
173-3021 Mounting Gp-Registration -With Wiring & Lights
17***21Mounting Group-Registration; -With Wiring & Lights1
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354-6549 Suppression Gp-Sound
Fuel System
218-5602 Control Gp-Governor
144-9962 Filter Gp-Water Sep & Fuel
322-4915 Governor Gp
228-1781 Lines Gp-Fuel Prm & Filter
315-7814 Pump & Mtg Gp-Fuel Transfer
317-0977 Pump Gp-Fuel Injection
176-9954 Pump Gp-Fuel Prm & Prim Filter -Water Separator
17***54Pump Group-Fuel Prm & Prim Filter; -Water Separator1
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Hydraulic System
193-0447 Accumulator & Mtg Gp-Hydraulic
19***47Accumulator & Mtg Group-Hydraulic; -Work Tool1
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149-0686 Accumulator Gp-Hydraulic -Charged
14***86Accumulator Group-Hydraulic; -Charged1
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227-8807 Accumulator Gp-Hydraulic -Uncharged
22***07Accumulator Group-Hydraulic; -Uncharged1
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179-7001 Adapter Gp-Oil Line
17***01Adapter Group-Oil Line; -Unit Injector Pump1
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218-6799 Cylinder & Mtg Gp-Lift Arm
192-2640 Cylinder Gp-Hydraulic -Coupler
19***40Cylinder Group-Hydraulic; -Coupler1
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230-3693 Cylinder Gp-Lift -Rh
230-3683 Cylinder Gp-Lift -Lh
230-3684 Cylinder Gp-Tilt -Lh
230-3694 Cylinder Gp-Tilt -Rh
218-5840 Fitting Gp-Hydraulic -Quick Disconnect, Male, High Flow
21***40Fitting Group-Hydraulic; -Quick Disconnect, Male, High Flow1
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218-5841 Fitting Gp-Hydraulic -Quick Disconnect, Female, High Flow
21***41Fitting Group-Hydraulic; -Quick Disconnect, Female, High Flow1
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356-1920 Hydraulic Ar -Auxiliary,Standard,Sound Suppression
35***20Hydraulic Ar; -Auxiliary,Standard,Sound Suppression1
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326-5478 Hydraulic Ar -With Work Tool Positioner
32***78Hydraulic Ar; -With Work Tool Positioner1
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326-5245 Hydraulic Ar -Auxiliary, High Flow, Sound Suppression
32***45Hydraulic Ar; -Auxiliary, High Flow, Sound Suppression1
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354-6548 Hydraulic Ar
356-1919 Hydraulic Ar -Auxiliary, Standard
35***19Hydraulic Ar; -Auxiliary, Standard1
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326-5465 Hydraulic Ar -Without Work Tool Positioner
32***65Hydraulic Ar; -Without Work Tool Positioner1
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326-5244 Hydraulic Ar -Auxiliary, High Flow
32***44Hydraulic Ar; -Auxiliary, High Flow1
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326-5671 Lines Gp-Coupler -Hydraulic
32***71Lines Group-Coupler; -Hydraulic1
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356-1928 Lines Gp-Hydraulic Fan -Cab Heater
35***28Lines Group-Hydraulic Fan; -Cab Heater1
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326-5599 Lines Gp-Hydraulic Fan
218-6143 Lines Gp-Hydraulic Oil Cooler
21***43Lines Group-Hydraulic Oil Cooler1
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326-5678 Lines Gp-Lift Cylinder -Without Work Tool Positioner
32***78Lines Group-Lift Cylinder; -Without Work Tool Positioner1
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326-5679 Lines Gp-Lift Cylinder -With Work Tool Positioner
32***79Lines Group-Lift Cylinder; -With Work Tool Positioner1
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218-5978 Lines Gp-Pilot -Direction, Speed
21***78Lines Group-Pilot; -Direction, Speed1
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218-6099 Lines Gp-Pilot -Work Tool
356-1907 Lines Gp-Pump -Suction
356-1908 Lines Gp-Pump -Suction
218-5819 Lines Gp-Tilt Cylinder -Without Work Tool Positioner
21***19Lines Group-Tilt Cylinder; -Without Work Tool Positioner1
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218-5852 Lines Gp-Tilt Cylinder -Work Tool Positioner
21***52Lines Group-Tilt Cylinder; -Work Tool Positioner1
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218-6197 Lines Gp-Work Tool
218-5853 Lines Gp-Work Tool -High Flow
21***53Lines Group-Work Tool; -High Flow1
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218-6235 Manifold & Lines Gp-Control -Parking Brake
21***35Manifold & Lines Group-Control; -Parking Brake1
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218-5812 Manifold & Mtg Gp-Control
159-5753 Manifold & Mtg Gp-Control -Work Tool Positioner
15***53Manifold & Mtg Group-Control; -Work Tool Positioner1
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248-1268 Manifold & Solenoid Gp-Control -Parking Brake
24***68Manifold & Solenoid Group-Control; -Parking Brake1
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224-9418 Manifold & Solenoid Gp-Control -Work Tool Positioner
22***18Manifold & Solenoid Group-Control; -Work Tool Positioner1
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233-7128 Manifold Gp-Control -Quick Coupler
23***28Manifold Group-Control; -Quick Coupler1
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248-7696 Manifold Gp-Control -Boosted Auxiliary Hydraulic Flow
24***96Manifold Group-Control; -Boosted Auxiliary Hydraulic Flow1
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295-7221 Motor & Mtg Gp-Hydraulic Fan
29***21Motor & Mtg Group-Hydraulic Fan1
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258-2579 Motor & Mtg Gp-Hydraulic Fan
25***79Motor & Mtg Group-Hydraulic Fan1
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356-1900 Motor Ar-Hydraulic Fan -Standard
35***00Motor Ar-Hydraulic Fan; -Standard1
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356-1901 Motor Ar-Hydraulic Fan -Nacd
307-6115 Motor Gp-Gear
307-3036 Motor Gp-Gear -Hydraulic Fan
30***36Motor Group-Gear; -Hydraulic Fan1
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289-6360 Motor Gp-Gear -Compressor
261-6094 Pump & Mtg Gp-Work Tool
261-6095 Pump & Mtg Gp-Work Tool
218-6175 Pump & Mtg Gp-Work Tool
21***75Pump & Mtg Group-Work Tool; -Standard Flow1
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218-6079 Pump & Mtg Gp-Work Tool
21***79Pump & Mtg Group-Work Tool; -High Flow1
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225-9238 Pump Gp-Gear -Work Tool, High Flow
22***38Pump Group-Gear; -Work Tool, High Flow1
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236-5106 Pump Gp-Gear -Work Tool
269-9462 Pump Gp-Gear
326-5780 Tank & Mtg Gp-Hydraulic
326-5781 Tank Gp-Hydraulic
218-6781 Valve & Mtg Gp-Control
336-1317 Valve Gp-Control
112-1817 Valve Gp-Manual
11***17Valve Group-Manual; -Ride Control-Hydraulic Lockout1
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343-0868 Valve Gp-Pilot
34***68Valve Group-Pilot; -Direction, Speed1
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299-9119 Valve Gp-Pilot
298-1309 Valve Gp-Relief
195-9700 Valve Gp-Solenoid -12-Volt
19***00Valve Group-Solenoid; -12-Volt-Work Tool1
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259-8194 Valve Gp-Solenoid -Parking Brake
25***94Valve Group-Solenoid; -Parking Brake1
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Implements
218-6798 Arm As-Lift
222-5695 Bracket Gp-Support
Lubrication System
308-2297 Filler Gp-Engine Oil
308-2298 Filter Gp-Engine Oil
322-4913 Pump Gp-Engine Oil
Machine Arrangement
326-4781 Chassis Ar
326-5416 Common Ar
326-5270 Control Ar-Machine -On, Off Auxiliary Control
32***70Control Ar-Machine; -On, Off Auxiliary Control1
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326-5271 Control Ar-Machine -Aux Proportional Flow
32***71Control Ar-Machine; -Auxiliary Proportional Flow1
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326-5272 Control Ar-Machine -Aux Proportional Flow
32***72Control Ar-Machine; -Auxiliary Proportional Flow1
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326-5297 Conversion Ar-Machine
326-5247 Conversion Ar-Machine -Nacd
326-5557 Conversion Ar-Machine
326-5287 Conversion Ar-Machine
326-5527 Conversion Ar-Machine
326-5567 Conversion Ar-Machine
326-5487 Conversion Ar-Machine
Operator Station
176-3900 Accumulator Gp-Refrigerant -Uncharged
17***00Accumulator Group-Refrigerant; -With Desiccant1
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186-6190 Accumulator Gp-Refrigerant -Charged
18***90Accumulator Group-Refrigerant; -With Desiccant1
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229-8747 Air Conditioner & Mounting Gp
22***47Air Conditioner & Mounting Group1
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326-5536 Air Conditioner Ar
218-6405 Air Conditioner Gp
320-1389 Arm Gp-Window Wiper
236-4830 Armrest & Mounting Gp
236-4833 Armrest Gp
218-6420 Box Gp-Storage -Literature
216-6146 Box Gp-Storage
326-5400 Cab Ar
356-1934 Cab Ar-Enclosed Rops -Mech Susp Seat
35***34Cab Ar-Enclosed Rops; -Mech Susp Seat1
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326-5534 Cab Ar-Enclosed Rops -Mech Susp Seat & A/C
32***34Cab Ar-Enclosed Rops; -Mech Susp Seat & A/C1
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356-1931 Cab Ar-Open Rops
356-1933 Cab Ar-Open Rops -Mech Susp Seat
35***33Cab Ar-Open Rops; -Mech Susp Seat1
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326-5404 Cab As
326-5401 Cab Gp-Enclosed Rops
218-6832 Compressor & Motor Gp-Refrig
21***32Compressor & Motor Group-Refrig1
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218-6830 Compressor & Mtg Gp-Refrig
218-6348 Condenser & Mtg Gp-Refrigerant
21***48Condenser & Mtg Group-Refrigerant1
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231-4260 Control Gp-Handle -Rh
218-6490 Control Gp-Handle -Work Tool
21***90Control Group-Handle; -Work Tool1
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231-4256 Control Gp-Handle -Lh
218-6485 Control Gp-Handle -Direction, Speed
21***85Control Group-Handle; -Direction, Speed1
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231-4258 Control Gp-Handle -Lh
231-4259 Control Gp-Handle -Rh
326-5264 Control Gp-Pilot Operated Hyd
32***64Control Group-Pilot Operated Hydraulic; -Work Tool1
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343-5542 Control Gp-Pilot Operated Hyd
34***42Control Group-Pilot Operated Hydraulic1
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326-5265 Control Gp-Pilot Operated Hyd -Auxiliary
32***65Control Group-Pilot Operated Hydraulic; -Auxiliary1
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343-5543 Control Gp-Pilot Operated Hyd
34***43Control Group-Pilot Operated Hydraulic1
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326-5267 Control Gp-Pilot Operated Hyd
32***67Control Group-Pilot Operated Hydraulic; -Hydrostatic1
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326-5266 Control Gp-Pilot Operated Hyd
32***66Control Group-Pilot Operated Hydraulic1
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276-5708 Coupling Gp-Drive -Refrigerant Compressor, Motor
27***08Coupling Group-Drive; -Refrigerant Compressor, Motor1
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218-6419 Cover Gp-Console -Without Air Conditioner, Heater
21***19Cover Group-Console; -Without Air Conditioner, Heater1
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223-0600 Door & Mtg Gp-Cab -Glass
218-6440 Door & Mtg Gp-Cab -Polycarbonate
21***40Door & Mtg Group-Cab; -Polycarbonate1
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276-3615 Door Gp-Cab -Polycarbonate
276-3440 Door Gp-Cab -Polycarbonate
218-6431 Door Gp-Cab -Glass
223-0616 Door Gp-Cab -Glass
218-6394 Duct Gp-Cab Air
231-7327 Frame Gp-Window -Lh
231-7325 Frame Gp-Window -Rh
233-5632 Guard Gp-Rops/Fops
218-6400 Handhold Gp
218-6118 Handle Gp-Modular
229-8746 Heater & Mtg Gp-Cab
356-1935 Heater Ar-Cab
218-6393 Heater Gp-Cab
231-8122 Housing As-Side -Air Conditioner, Heater
23***22Housing As-Side; -Air Conditioner, Heater1
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356-1932 Installation Gp-Cover & Lines -Without A/C, Heater
35***32Installation Group-Cover & Lines; -Without A/C, Heater1
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234-0774 Lever Gp-Governor
326-5406 Liner Gp-Cab
142-9311 Liner-Cab -Gray
218-6560 Lines Gp-Air Conditioner
218-6086 Lines Gp-Heater
258-4230 Mirror Gp-Rear View
223-6537 Module Gp-Warning Indicator
249-2910 Module Gp-Warning Indicator
330-5012 Motor Gp-Window Wiper
218-6370 Mounting Gp-Rops
328-2270 Panel Gp-Instrument
218-6430 Panel Gp-Side
229-8744 Panel Gp-Side -Without Heater Or A/C
22***44Panel Group-Side; -Without Heater Or A/C1
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325-8382 Pedal Gp-Governor
327-8939 Pedal Gp-Governor
326-5570 Platform Gp-Operator
218-6407 Seal Gp-Cab -Debris Barrier
21***07Seal Group-Cab; -Debris Barrier1
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276-6019 Seat Belt Gp
276-7277 Seat Belt Gp
276-7276 Seat Belt Gp
276-6020 Seat Belt Gp
218-5562 Seat Gp -Static
142-9305 Seat Gp -Suspension
219-4380 Seat Gp-Adjustable
218-6380 Spring Gp-Gas -Cab, Door
173-3022 Visor Gp-Cab
166-2569 Visor Gp-Cab
224-7057 Window Gp-Cab -Upper,Lh
195-6723 Window Gp-Cab
224-7058 Window Gp-Cab -Upper, Rh
218-6411 Window Gp-Cab -Side
Power Train
261-6255 Axle Gp
142-8758 Axle Gp
356-1937 Drive Gp-Tandem
218-6624 Filter & Lines Gp-Hydraulic
223-9974 Filter Gp-Oil -Hydraulic
317-0974 Filter Gp-Oil
218-6089 Lines Gp-Hydrostatic
331-6058 Lines Gp-Hydrostatic
308-0421 Manifold Gp-Return
30***21Sealing Washer, Manifold Group-Return1
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356-1938 Motor & Mtg Gp-Hydrostatic
280-7854 Motor Gp-Piston -Hydrostatic
28***54Motor Group-Piston; -Hydrostatic1
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228-1763 Mounting Gp-Pump
358-6924 Power Train Ar
261-5660 Pump & Mtg Gp-Hydrostatic
307-3064 Pump Gp-Piston
185-8678 Tire & Rim Gp -Lh
265-2894 Tire & Rim Gp -Lh
185-8672 Tire & Rim Gp -Lh
199-5435 Tire & Rim Gp -Rh
185-8671 Tire & Rim Gp -Rh
165-2605 Tire & Rim Gp -Lh
265-2896 Tire & Rim Gp -Lh
185-8670 Tire & Rim Gp -Lh
199-5434 Tire & Rim Gp -Lh
185-9926 Tire & Rim Gp -Lh
185-9927 Tire & Rim Gp -Rh
165-2610 Tire & Rim Gp -Rh
165-2606 Tire & Rim Gp -Rh
150-8592 Tire & Rim Gp -Rh
142-7484 Tire & Rim Gp -Lh
165-2609 Tire & Rim Gp -Lh
185-8679 Tire & Rim Gp -Rh
265-2895 Tire & Rim Gp -Rh
185-8673 Tire & Rim Gp -Rh
265-2897 Tire & Rim Gp -Rh
142-9121 Wheel & Tire Ar -High Flotation
14***21Wheel & Tire Ar; -High Flotation1
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165-2602 Wheel & Tire Ar -Heavy Duty
165-4891 Wheel & Tire Ar -Heavy Duty
142-8666 Wheel & Tire Ar
185-8660 Wheel & Tire Ar -Low Side Wall
18***60Wheel & Tire Ar; -Low Side Wall1
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185-8661 Wheel & Tire Ar -Low Side Wall
18***61Wheel & Tire Ar; -Low Side Wall1
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252-0378 Wheel & Tire Ar -Solid
185-8664 Wheel & Tire Ar -Heavy Duty
252-0345 Wheel & Tire Ar
252-0344 Wheel & Tire Ar
252-0367 Wheel & Tire Ar -Solid
185-8665 Wheel & Tire Ar -Heavy Duty
Service Equipment And Supplies
295-7144 Film Gp
356-1898 Film Gp -High Flow
354-6562 Film Gp
238-7734 Film Gp -Un
317-0972 Parts Gp-Miscellaneous
195-6740 Plate & Film Gp
308-5206 Plate & Film Gp
326-5460 Plate & Film Gp
326-5560 Plate & Film Gp
Work Tools
326-5568 Coupler Ar-Quick -Mechanical
326-5576 Coupler Ar-Quick -Hydraulic
360-1364 Coupler Gp-Quick -Hydraulic
36***64Coupler Group-Quick; -Hydraulic1
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360-1363 Coupler Gp-Quick -Mechanical
36***63Coupler Group-Quick; -Mechanical1
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215-3962 Cylinder & Link Gp-Coupler -Lh
21***62Cylinder & Link Group-Coupler; -Lh1
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215-3963 Cylinder & Link Gp-Coupler -Rh
21***63Cylinder & Link Group-Coupler; -Rh1
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258-2538 Handle & Pin Gp-Coupler -Lh
25***38Handle & Pin Group-Coupler; -Lh1
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258-2536 Handle & Pin Gp-Coupler -Rh
25***36Handle & Pin Group-Coupler; -Rh1
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319-9480 Kit-Roading Plate & Mounting -Bucket
31***80Kit-Roading Plate & Mounting; -Bucket1
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215-3957 Link Gp-Coupler
258-2537 Lock Gp-Quick Coupler -Lh
258-2535 Lock Gp-Quick Coupler -Rh
175-4238 Lock Gp-Quick Coupler -Mechanical
17***38Lock Group-Quick Coupler; -Mechanical1
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226B3 serial number reference

The 226B3 serial/PIN plate sits at the rear of the machine. On this size of Cat skid steer it is typically on the left side under the lift arm or rear support arm; machines built in 2014 and later may also carry it on the right (curb) side in the same rear area, and some frames have the VIN additionally stamped near the front of the machine by the front tire. Read the PIN left to right: the first three characters are the serial-number prefix identifying the production/parts break, and the digits that follow are the sequential unit number within that break. Match the prefix, not the full PIN, to the correct service or parts manual.

PrefixIdentifies
SNA226B3 skid steer loader, standard production break
MWD226B3 skid steer loader, standard production break
DXZ226B3 skid steer loader, standard production break
AS2226B3 skid steer loader, standard production break
F3D226B3 skid steer loader, standard production break
NRK226B3 skid steer loader — confirm with dealer

Frequently asked questions

What engine does the Cat 226B3 skid steer loader use?

A turbocharged Cat C2.2 T, a 2.2 L four-cylinder diesel rated at 42 kW (56 hp) net power (SAE J1349/ISO 9249) and 45.5 kW (61 hp) gross power (SAE J1995). This is the key difference from the smaller 216B3, which uses the same C2.2 block without the turbocharger and makes less power.

What is the operating weight of the Cat 226B3?

Factory baseline operating weight is 2641 kg (5822 lb) with a rated operating capacity of 680 kg (1500 lb), rising to 726 kg (1600 lb) with the optional counterweight. Actual weight on a given machine varies with cab enclosure, counterweight and hydraulic options, so treat this as a baseline rather than a fixed figure.

What replaced the Cat 226B3?

The Cat 226D3, Cat's next-generation skid steer loader built to Tier 4 Final emissions standards. It kept the same general size and role in the lineup, with a newer engine and a modest gain in rated operating capacity, continuing the numbered 226 designation Cat has used across several generations of this size class.

What 226B3 owners discuss

What engine does the Cat 226B3 actually run, and is it the same unit as the older 226 or 226B?
The 226B3 runs the Cat C2.2 T: a 2.2 L (134 cu in), 4-cylinder, turbocharged direct-injection diesel rated around 45.5 kW (61 hp) gross and 42 kW (56 hp) net. That C2.2 block is shared across the whole B-series compact line, not unique to the 226B3, and its design lineage traces back to a Perkins 1104-family engine that Cat licenses and badges under its own C-series naming. The earlier plain 226B ran a different, earlier-generation 2.2 L turbo engine before Cat standardized the C2.2 designation across the range, so don't assume injectors, timing settings, or turbo parts carry straight across from a 226 or early 226B without checking the engine tag first.
The 226B3 won't drive but the engine runs fine - is the hydrostatic pump bad?
Don't jump to the pump first. Owners and techs consistently trace drive hesitation or a no-move condition to the electrical servo/solenoid circuit that commands the hydrostatic pump, not the pump itself. Start with the servo wiring harness and connectors for corrosion or chafing, clean and reseat frame ground points (a common weak spot on this platform), and confirm the drive-enable signal from the seat/safety-bar circuit is actually present before condemning the pump or drive motors. Have your dealer verify any brake-pressure or servo-calibration finding before authorizing hydraulic component replacement.
Hydraulics and drive are both dead, engine runs and dash lights are on - what's the likely cause?
This pattern points to the safety interlock, not a hydraulic failure. Like the rest of the B-series, the 226B3 won't send power to drive or auxiliary hydraulics unless the seat is occupied and the safety bar/lap bar is down, with both switches showing continuity. A worn or misadjusted seat switch, a corroded safety-bar switch, or a loose connector at either one kills both systems at once and mimics a major hydraulic or electrical failure. Check switch continuity and connector condition before opening a pump or valve. Because this interlock is a safety device, have your dealer verify the switch and any wiring repair before returning the machine to service.
What wears out on a 226B3 the way undercarriage wears out on a tracked machine?
The 226B3 is wheeled, so there's no track undercarriage - the equivalent wear points are the drive chains running inside each side frame, the wheel/axle bearings, and the loader-arm pivot pins and bushings. Chain and bearing life tracks chain-case oil level and condition; pin and bushing life depends almost entirely on greasing discipline. Skipped grease intervals are the leading cause of pin galling, where the pin and bushing friction-weld together and the joint stops swinging freely - it shows up first as a squeak that worsens, then as a joint that binds. Machines greased on schedule show noticeably less arm-joint slop at comparable hours than ones that had intervals stretched.
Why doesn't the 226B3 have the DPF/regen complaints owners of newer Cat skid steers mention?
The B3 series, 226B3 included, meets Tier 4 Interim / Stage IIIA-level emissions rather than the Tier 4 Final rules that forced diesel particulate filters and active regeneration cycles onto later D-series machines. That's a real and often-cited reason buyers seek out a clean used B3 instead of a newer D-series: no forced regen interrupting a work cycle, no DPF hardware crowding the engine bay, and a simpler exhaust path to diagnose. The trade-off is an older emissions tier, which can matter for resale or in regions with stricter equipment emissions rules, so weigh that against the simplicity.
Machine cranks but won't start, or shuts off randomly during work - fuel or electrical?
Both show up, and they get chased differently. Hard-start or no-start complaints usually trace to air in the fuel system, a loaded fuel/water separator, or a fuel shut-off solenoid not getting power on the run circuit - check for voltage at the solenoid before replacing it. Random shutdowns while driving more often trace to the safety-bar or seat switch momentarily losing continuity, or a bad frame ground, than to the fuel system. Corroded or loose connectors at the relay/fuse block are a known nuisance point on this platform; clean and reseat them before chasing wiring diagrams. Because a stall-while-driving complaint can mask a genuine interlock or brake fault, have your dealer verify the safety-circuit wiring if the cause isn't clearly fuel-related.
What should I specifically check before buying a used Cat 226B3?
Beyond hour count and service records, buyers report these checks pay off on this model: cycle the loader arms and feel for excessive play at the pivot pins/bushings, a sign of skipped greasing; listen for chain noise from the side frames with covers off if the seller allows it; verify the seat and safety-bar switches actually cut hydraulics and drive when tested, since a bypassed or defeated safety switch is a common shortcut on tired rental-return units; watch exhaust smoke color and any hesitation on a cold start, which points to fuel system or turbo wear; and inspect the engine bay for any sign of aftermarket emissions tampering. Steering and drive response on this model can feel naturally sharp or a little jerky in tight quarters even when healthy, so compare against another same-model machine rather than assuming it's a fault. Since the safety-switch check above protects the operator, have your dealer verify interlock function on any machine before relying on it in service.

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

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