JCBvibromaxvibromax vm
Jcb VM166PD(TIER 3)
Maintenance schedule, common problems & OEM parts breakdown
The JCB VM166PD is a Tier 3 single-drum padfoot compactor within the Vibromax series, designed for heavy earthwork and foundation compaction. Production for the VM166PD (Tier 3) aligns with serial number ranges starting from SN the OEM part reference. The machine features a robust steel drum with padfoot configuration, powered by a Tier 3 compliant engine meeting specific emissions standards for its era. It is part of the broader VM range that includes smooth drum variants (VM166D) and adjacent models like the VM146PD and VM200PD. The VM166PD offers a specific operating weight class suitable for medium-to-heavy compaction tasks, with configurations varying by tire size (23.1-26 padfoot tires) and attachment packages.
The transition from Tier 2 to Tier 3 emissions standards marked a significant shift in the VM series, requiring updated engine management systems and exhaust treatments to meet regulatory requirements. The VM166PD (Tier 3) represents the later generation of this platform, distinguished by its serial prefix break at the OEM part reference. In the used and parts market, the VM166PD remains relevant due to its durable hydraulic architecture and the availability of shared components across the Vibromax line. However, buyers must verify the exact serial range to ensure compatibility with Tier 3 specific parts, as Tier 2 components are not interchangeable. The machine's longevity is supported by its accessible maintenance points and the widespread use of JCB's EcoMAX or Dieselmax engine families in this class.
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.
Jcb VM166PD(TIER 3) specifications
Engine
| Engine Make | Cummins |
| Engine Model | B5.9 |
| Gross Power | 173 hp @ 2200 rpm |
| Displacement | 359 cu in |
| Emissions Tier | Tier 3 |
Weights
| Operating Weight | 37037.7 lb |
Dimensions
| Overall Length (W/O Blade) | 19.19 ft |
| Width Over Tires | 7.45 ft |
| Height To Top Of Cab | 9.63 ft |
| Wheelbase | 9.83 ft |
| Ground Clearance | 17.6 in |
| Drum Diameter | 63 in |
| Pad Height | 3.94 in |
| Drum Width | 82.68 in |
| Number Of Pads | 132 |
Performance
| Max Speed | 7.1 mph |
| Vibration Frequency 1 | 29 Hz |
| Vibration Frequency 2 | 35 Hz |
| Nominal Amplitude - Low | 0.08 in |
| Centrifugal Force - Low | 72163.67 lb |
| Nominal Amplitude - High | 0.04 in |
| Centrifugal Force - High | 46760.26 lb |
Service capacities (summary)
| Fuel Capacity | 105.7 gal |
| Cooling System Fluid Capacity | 5.1 gal |
| Engine Oil Capacity | 3.9 gal |
| Hydraulic System Fluid Capacity | 21.2 gal |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
VM166PD(TIER 3) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | 10.5 L (2.77 US gal) | JCB Advanced Engine Oil (for DPF equipped low-emission engines) or JCB Engine Oil (for non-DPF hardware); viscosity grade varies by ambient temperature per the operation and maintenance manual. |
| Cooling system | 14.5 L (3.83 US gal) | JCB Coolant (multipurpose silicate-based coolant); change at recommended service intervals to prevent silicate separation. |
| Fuel tank | 230 L (60.8 US gal) | Diesel fuel meeting local Tier 3 emissions regulations. |
| Transmission / Powertrain | 18.5 L (4.89 US gal) | JCB Transmission Oil (multipurpose fluid suitable for transmissions including wet brake systems). |
| Final drives (each) | 3.5 L (0.92 US gal) | JCB Gear Oil (high wear protection for axles and gearboxes). |
| Hydraulic system and tank | 135 L (35.7 US gal) | JCB Hydraulic Oil (high anti-wear performance, high thermal and oxidation stability). |
| Axles / Differentials | 14.0 L (3.70 US gal) | JCB Gear Oil (provides chatter control and protection against rust and corrosion). |
| Grease | N/A | JCB Grease (long-life protection, high load handling capacity; specific type such as boom grease or blue grease varies by application point). |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Jcb VM166PD(TIER 3) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the VM166PD(TIER 3) beyond the schedule
Predictive Maintenance & Fluid Analysis
Baseline fluid analysis at the 500-hour mark is critical for the VM166PD. Sample engine oil, hydraulic fluid, and axle oils to detect early wear patterns. The Tier 3 engine relies on precise fuel filtration; monitor primary and secondary fuel filters for contamination that could damage common-rail injectors. Use JCB Engine Oil Special or equivalent 15W-40 diesel oil. Hydraulic system health is monitored via the return filter magnet; inspect for metallic debris during every 250-hour service. Extend or compress intervals based on lab results compared to the initial baseline.
Corrective & Common Repairs
Common repairs on the VM166PD involve the drum drive motor and vibration motor, identified by their serial plates. Check for hydraulic leaks at 'O' Ring Face Seal and 'Torque Stop' hose connections. Inspect the turbocharger boot and wastegate for air leaks that reduce compaction efficiency. Replace worn padfoot tires (23.1-26) and check drum bearing play. Address electrical faults using JCB ServiceMaster diagnostics, focusing on the ECM and sensor inputs. Ensure all structural welds on the chassis and side frames are intact, as unauthorized repairs compromise safety.
Overhaul & Rebuild Points
Major overhaul points include the hydraulic pump, steering unit, and rear axle, each with unique serial numbers requiring specific rebuild kits. The 2000-hour service mandates a deep inspection of the swing ring and drum drive components. Replace all gaskets and seals using JCB Multi-Gasket and High Strength Threadlocker where specified. Inspect the engine's injector spray patterns and replace if out of spec. Check the alternator and starter for load capacity. Verify slew ring bolt torque on applicable configurations to prevent structural failure.
Seasonal & Environment Servicing
In cold climates, ensure the cooling system is flushed and refilled with JCB-spec long-life coolant to prevent freezing. Check the battery electrolyte levels in non-sealed units and clean terminals. In dusty environments, inspect the air filter restriction indicator more frequently and clean the housing. Verify tire pressure for padfoot tires (23.1-26) to maintain compaction effectiveness. Inspect all hoses and cylinders for chafing or pinhole seepage, especially in rocky terrain. Test the cab HVAC system to ensure operator comfort and visibility in varying weather conditions.
VM166PD(TIER 3) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 02/912540 | Head, Fuel Filter | Fuel system service | Check fitment → |
| 7242/96131 | Filter, Cartridge, Air Conditioning | Air intake service | Check fitment → |
| 2611/00045 | Filter, Oil, Complete | Lubrication service | Check fitment → |
| 32/925413 | Element, Engine Oil Filter, Cartridge | Lubrication service | Check fitment → |
| 2611/00002 | Kit-Gasket, Hydraulic Filter | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
VM166PD(TIER 3) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| P0087 | Fuel rail pressure too low | Clogged primary fuel filter, weak lift pump, or air leaks on the suction side. | Replace primary fuel filter; verify lift pump primes; inspect for air leaks. |
| P0191 | Fuel rail pressure sensor performance | Erratic rail pressure readings confusing the ECU; sensor circuit fault. | Check filter age; test sensor 5V/ground; wiggle-test connector. |
| P2201 | NOx sensor out of range | Common trigger for regen loops and DEF warnings; sensor or exhaust leak. | Inspect NOx connector/harness; check for exhaust leaks upstream. |
| P20EE | SCR NOx efficiency low | SCR reports poor conversion; often sensor or DEF injector issue. | Use fresh DEF (32.5%); inspect DEF injector crystals; verify NOx sensors. |
| P1C54 | SCR inducement derate | Power cut as punishment for an unresolved emissions fault. | Fix the root SCR/DEF code first; top off clean DEF; complete regen if required. |
| U029D | Lost NOx sensor communication | ECU cannot talk to NOx sensor A; battery voltage or connector pins. | Check battery voltage; inspect NOx connector pins; verify power/ground/CAN continuity. |
| U0073 | CAN bus off | Module network dropped; often battery/grounds before a 'bad ECU.' | Load-test battery; clean grounds; inspect harness at pivots. |
| T135 | Transmission oil temperature high | Transmission overheating warning. | Check oil level; clean cooler fins; cool down before continued heavy work. |
| T072 | Output speed sensor no signal | Erratic shifting or limp gear from missing speed signal. | Inspect speed sensor connector; check wiring at articulation points. |
| ENG OIL | Engine oil pressure low | Oil pressure below safe threshold. | Check oil level immediately; inspect for leaks; check filter and sensor before condemning the pump. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
VM166PD(TIER 3) attachments & work tools
Smooth Drum Compaction
The VM166PD(Tier 3) is a single-drum vibratory roller equipped with a smooth steel drum for asphalt and soil compaction. The machine operates within the Vibromax VM166 series, which includes the non-pneumatic VM166D and the pneumatic VM166PD variants.
Padfoot Drum Options
Padfoot drum configurations are listed as available options for the Vibromax VM166 series. These drums feature an inner diameter of 1400 mm and an outer diameter of 1600 mm, designed for deeper soil compaction applications.
Water Spray System
A water spray system is integrated to prevent asphalt adhesion to the smooth drum. The system utilizes a dedicated water tank and pump arrangement, with capacity and nozzle placement varying by specific machine configuration.
Vibration Mechanism
The compaction force is generated by an eccentric weight system driven by hydraulic motors. The vibration frequency and centrifugal force are adjustable to suit different material densities and layer thicknesses.
Hydraulic Propulsion
The machine employs a hydrostatic drive system for travel. This arrangement provides infinitely variable speed control and allows for precise maneuvering on the job site without mechanical gear shifts.
Engine Configuration
The VM166PD(Tier 3) is powered by a Tier 3 compliant diesel engine. The specific engine model and power output are determined by the serial number range and regional emission requirements for the VM166 series.
Serial Number Applicability
The VM166PD(Tier 3) is covered by service manual publication the OEM part reference-5 for serial numbers ranging from the OEM part reference to the OEM part reference. Machines with serial numbers below this range fall under the Tier 2 service manual specifications.
Coupler/Mounting System
As a self-propelled roller, the VM166PD does not use a quick coupler for its primary drum. The drum is fixed to the chassis frame. Attachment points for optional accessories like the water tank or rear blade are integrated into the rear frame structure.
Guarding and Safety
The machine includes standard guarding for the vibration mechanism and hydraulic lines. ROPS/FOPS structures are provided for operator protection, with specific mounting points and reinforcement varying by the VM166 chassis build.
All VM166PD(TIER 3) assemblies by section
Every catalogued assembly group for the Jcb VM166PD(TIER 3). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
B Bodywork, Cab, Loader End
B1-4-1 Steps, <1802239
| 20***35 | Screw, Hex, M12x35 | 4 |
| 22***12 | Washer, M12 | 4 |
| 72***10 | Step | 1 |
B1-2-1 Rear Chassis Inc, Hydraulic Tank
| 20***55 | Screw | 2 |
| 20***25 | Screw, Hexagon M8x25 | 28 |
| 20***25 | Screw, Hexagon M10x25 | 4 |
B1-3-1 Door, (Rear Flap)
| 20***20 | Capscrew, M8x20 | 8 |
| 21***08 | Nut | 4 |
| 22***08 | Washer, M8 | 4 |
B1-15-1 Pd Shells, Scraper Coussinet, (Pd Build)
| 20***60 | Screw, Hexagon M20x60 | 36 |
| 20***20 | Screw, Hexagon M24x120 | 18 |
| 20***70 | Screw, Hexagon M16x70 | 2 |
B1-10-1 Side Flap Assembly
| 27***26 | Strip | 0 |
| 37***63 | Key, Ignition &, Side Flap & Door | 1 |
| 72***51 | Cover, Side Flap | 1 |
B1-9-1 Cooler Cover
| 20***20 | Screw | 14 |
| 22***08 | Washer, M8 | 14 |
| 27***10 | Strip, Edge Protection | 0 |
B1-4-2 Steps, >1802240
| 13***9Z | Screw, M12 X 35mm, Screw, M12 X 35mm; M12 X 35. Items 21 & 22 Are Used On 23***00 And 23***00 Throttle Brackets | 4 |
| 13***2Z | Bolt, M20 X 120mm | 2 |
| 13***3Z | Nut, Lock, M10 | 9 |
B1-12-1 Tamping Foot Scraper, Pd Build
| 20***60 | Screw, Hexagon M20x60 | 40 |
| 20***65 | Screw, Hexagon M20x65 | 16 |
| 22***21 | Washer, Din 21 | 48 |
B1-8-1 Centre Pivot, Articulation Joint
| 20***70 | Screw, M16x70 | 24 |
| 20***20 | Screw | 10 |
| 20***20 | Screw | 1 |
B1-5-1 Engine Cover, Bonnet
| 20***25 | Screw, Hexagon M8x25 | 6 |
| 20***25 | Screw, Hexagon M10x25 | 6 |
| 20***30 | Screw, Hexagon M10 X 30 | 8 |
B1-1-1 Roller Frame
| 40***32 | Decal, Walk Behind | 1 |
| 72***35 | Frame, Roller | 1 |
B1-13-1 Vulkollan Scraper, D Build
| 20***60 | Screw | 16 |
| 20***65 | Screw, Hexagon M20x65 | 0 |
| 22***21 | Washer, Din 21 | 0 |
B1-14-1 Scraper D Build
| 20***65 | Screw, Hexagon M20x65 | 16 |
| 22***21 | Washer, Din 21 | 8 |
| 22***20 | Washer, Din 20 | 8 |
B2-8-1 Instrument Panel, Cover
| 20***16 | Capscrew, M6x16 | 2 |
| 20***55 | Capscrew, M8x55 | 2 |
| 22***08 | Washer, M8 | 2 |
B2-5-1 Frame, Rops
| 20***40 | Capscrew, M24x140 | 6 |
| 27***00 | Decal, Seatbelt | 1 |
| 27***08 | Plug, Plastic | 23 |
B2-5-4 Sun Roof
| 20***00 | Screw, Hexagon M24x100 | 4 |
| 22***24 | Washer | 4 |
| 72***10 | Sunroof, With Out Rops | 1 |
B2-10-1 Cab Door, Left Hand Side, Up To S/N 2900827
| 20***16 | Capscrew, M6x16 | 2 |
| 20***30 | Screw, M 6x30 Din7991 | 2 |
| 20***35 | Screw | 2 |
B2-4-1 Hand Rail
| 20***30 | Screw | 1 |
| 20***50 | Screw, Hexagon M16x50 | 1 |
| 21***00 | Nut, M16 | 1 |
B2-7-1 Hand Rail
| 20***25 | Screw, Hexagon M8x25 | 2 |
| 20***30 | Screw, Hex M8 X 30 | 2 |
| 20***40 | Screw, Hexagon M12x40; Change Of Vendor Code 26/10/07 San 23603, Informed By Dalanda Balde | 2 |
B2-5-2 Frame, Fops
| 20***60 | Screw, Hexagon M10x60 | 6 |
| 21***10 | Plate | 6 |
| 72***45 | Frame, Fops | 1 |
B2-2-1 Seat & Seat Base
| 20***30 | Capscrew, M10x30 | 2 |
| 20***20 | Capscrew, M8x20 | 4 |
| 21***00 | Nut, M8 | 4 |
B2-1-1 Cab Base, (Operators Stand)
| 20***50 | Screw | 4 |
| 20***70 | Screw, Hexagon M8x70 | 2 |
| 20***30 | Screw, M6x30 | 1 |
B2-3-1 Seat Components
| 72***05 | Seat, Cushion Kit, Comp | 1 |
| 72***06 | Cover, Side, Kit | 1 |
| 72***07 | Control Lever | 1 |
B2-9-1 Rops Cab Assembly
| 19***25 | Mat, Damping | 1 |
| 20***30 | Capscrew, M24x140 | 6 |
| 72***40 | Harness, Wiper Pumps | 1 |
B2-11-1 Cab Door, Right Hand Side
| 20***16 | Capscrew, M6x16 | 6 |
| 20***35 | Screw | 2 |
| 22***08 | Washer, M8 | 2 |
B2-12-1 Lock, Mechanism, From Serial Number 2900828
| 33***37 | Grip, Cap | 1 |
| 33***38 | Lock, Turning Trap | 1 |
| 33***39 | Base | 1 |
B2-1-2 Console, (Propultion Control)
| 20***35 | Screw, Hexagon M8x35 | 4 |
| 20***20 | Capscrew, M6x20 | 4 |
| 20***13 | Screw, Tapping, 8x13 | 8 |
B2-5-3 Sun Roof Complete
| 21***10 | Plate | 6 |
| 21***00 | Nut, M10 | 6 |
| 26***41 | Buffer | 6 |
B5-1-1 Machine Decals
| 27***60 | Decal, Vibromax, Yellow | 1 |
| 27***70 | Decal, Vibromax | 2 |
| 27***25 | Decal, Jcb, Yellow | 1 |
B5-3-1 Decals
| 27***12 | Decal | 1 |
| 27***12 | Decal | 1 |
| 27***12 | Decal, Attention | 1 |
B5-2-1 Decals
| 27***01 | Decal, Oil Level | 1 |
| 27***20 | Decal, Hydraulic Oil | 1 |
| 27***23 | Decal, Hlp 46 | 1 |
C Electrics-Machine, Cab & Engine
C1-3-1 Machine Electrics, With Cab
| 20***25 | Screw, Hexagon M8x25 | 4 |
| 20***16 | Capscrew, M4x16 | 4 |
| 20***25 | Capscrew, M10x25 | 4 |
C1-1-1 Back-Up Alarm
| 20***16 | Screw, M6 X 16 | 2 |
| 22***06 | Washer, M6 | 2 |
| 23***21 | Clip | 2 |
C1-6-1 Machine Lighting, Without Cab
| 20***20 | Screw, Hexagon M8x20 | 4 |
| 21***00 | Nut, M8 | 4 |
| 23***21 | Clip | 25 |
C1-2-1 Rotation Light
| 81***37 | S11, S13, S14, 2 Position Switch; 3 Point Switch Says 7832-35 - 'New' Extra Pin, Switch Says 7832-10 - This Is Correct | 1 |
| 81***52 | Decal, Rotation Light | 1 |
| 83***15 | Cable | 1 |
C1-4-1 Machine Electrics, Without Cab
| 20***25 | Screw, Hexagon M8x25 | 8 |
| 20***16 | Capscrew, M4x16 | 4 |
| 21***04 | Nut, M4, Din 125 | 4 |
C2-10-10 Machine Electrics, Including Battery, < Jcb 1801404
| 20***12 | Screw, Hexagon M6x12 | 2 |
| 20***16 | Screw, M6 X 16 | 2 |
| 20***12 | Screw, Hexagon M8x12 | 3 |
C2-10-20 Machine Electrics, Including Battery, > Jcb 1801405
| 20***12 | Screw, Hexagon M6x12 | 2 |
| 20***16 | Screw, M6 X 16 | 2 |
| 20***12 | Screw, Hexagon M8x12 | 3 |
C2-4-1 Alternator
| 71***80 | Alternator, Assembly | 1 |
C2-5-1 Alternator Mounting
| 02***02 | Screw, M8 X 20mm | 1 |
| 02***07 | Bolt, M8x1.25x25 | 1 |
| 02***26 | Nut, Flange Head | 1 |
C2-1-1 Module, Engine Control
| 02***74 | Screw, M8 X 45 | 3 |
| 02***64 | Screw | 1 |
| 02***93 | Screw | 8 |
C2-2-1 Switches & Sensors
| 02***79 | Screw | 1 |
| 02***73 | O Ring | 2 |
| 02***81 | Screw, Socket Head | 1 |
C2-3-1 Starter Motor
| 02***72 | Screw, 12 Point Cap | 2 |
| 71***28 | Motor, Starter | 1 |
C2-1-2 Module, Control Harness
| 02***56 | Clip | 6 |
| 02***57 | Clip | 3 |
| 02***82 | Screw | 3 |
C2-2-2 Engine Heater Relay
| 20***16 | Screw, M6 X 16 | 2 |
| 21***00 | Nut, M6 | 2 |
| 22***06 | Washer | 2 |
C3-11-1 Heater Unit
| 20***20 | Screw, Hexagon M6x20 | 15 |
| 20***25 | Capscrew, M8x25 | 6 |
| 20***08 | Screw | 16 |
C3-4-1 Air Conditioning, (Fig 2)
| 20***12 | Screw, Hexagon M8x12 | 2 |
| 20***16 | Screw, Hexagom M8x16 | 6 |
| 20***20 | Screw, Hexagon M8x20 | 4 |
C3-12-1 Digital Compaction
| 20***40 | Screw, Hexagon M8 X 40 | 2 |
| 20***30 | Capscrew, M6x30 | 2 |
| 21***00 | Nut, M8 | 2 |
C3-8-1 Hoses System, Air Conditioning
| 20***20 | Capscrew, M6x20 | 4 |
| 20***30 | Capscrew, M6x30 | 2 |
| 21***00 | Nut, M6 | 1 |
C3-2-1 Instrument Panel, (Inc Decals)
| 20***12 | Capscrew, M3x12 | 2 |
| 20***16 | Capscrew, M8x16 | 4 |
| 20***10 | Screw | 2 |
C3-1-1 Fuse Box & Relays
| 20***12 | Screw | 9 |
| 20***30 | Screw, M6x30 | 1 |
| 20***20 | Screw, Hexagon M8x20 | 3 |
C3-7-1 Water System, Air Conditioning
| 20***30 | Capscrew, M4x30 | 2 |
| 21***04 | Nut, M4, Din 125 | 2 |
| 22***04 | Washer, M4, Din 125 | 2 |
C3-5-1 Air Conditioning, (Fig 3)
| 20***20 | Screw, Hexagon M6x20 | 2 |
| 21***00 | Nut, M6 | 2 |
| 22***06 | Washer | 2 |
C3-13-1 Rops Cab, Assembly
| 19***25 | Mat, Damping | 1 |
| 20***30 | Capscrew, M24x140 | 6 |
| 72***40 | Harness, Wiper Pumps | 1 |
D Controls-Machine, Engine & Steering
D2-1-1 Engine Control
| 20***12 | Capscrew, M3x12 | 1 |
| 21***03 | Nut, Hex M3 | 1 |
| 72***00 | Throttle, Control, (Gas Adjustment) | 1 |
D3-1-1 Steering Column, Complete
| 12***42 | Knob, Assembly, Steering Wheel | 1 |
| 20***25 | Screw, Hexagon M10x25 | 4 |
| 22***10 | Washer, M10 | 4 |
D3-2-2 Steering Column, Assembly, From S/N 18 022 00
| 72***00 | Column, Steering | 1 |
| 72***05 | Lever | 1 |
| 72***06 | Cover | 1 |
D3-2-1 Steering Column, Assembly, Up To S/N 18 021 99
| 72***55 | Lever, Gear Shift | 1 |
| 72***60 | Bellows | 1 |
| 72***61 | Bearing, Pair Of Shells | 0 |
E Hydraulics & Air Including, Steering
E1-5-1 Circuit, Brakes
| 20***70 | Screw, Hexagon M8x70 | 2 |
| 20***45 | Screw, Hexagon M8x45 | 1 |
| 20***30 | Capscrew, M6x30 | 2 |
E1-9-1 Circuit,, Engine Bonnet
| 20***70 | Screw, Hexagon M6x70 | 4 |
| 20***20 | Screw, Hexagon M8x20 | 2 |
| 20***45 | Capscrew, M6x45 | 2 |
E1-3-1 Circuit, Steering
| 20***22 | Capscrew, M6x22 | 4 |
| 20***35 | Capscrew, M6x35 | 2 |
| 20***50 | Capscrew, M6x50 | 2 |
E1-4-1 Circuit,, Hydraulic Oil Filter
| 20***16 | Screw, Hexagom M8x16 | 4 |
| 20***25 | Screw, Hexagon M8x25 | 2 |
| 22***08 | Washer, M8 | 6 |
E1-2-1 Circuit, Drive
| 20***45 | Capscrew, M6x45 | 2 |
| 20***50 | Capscrew, M6x50 | 4 |
| 20***60 | Capscrew, M6x60 | 4 |
E1-7-1 Circuit,, Leakage Return Line
| 20***00 | Screw, Hexagon M10x100 | 2 |
| 20***30 | Capscrew, M6x30 | 2 |
| 20***40 | Capscrew, M6x40, Din 912 | 4 |
E1-1-1 Circuit, Propulsion
| 20***45 | Capscrew, M6x45 | 2 |
| 20***50 | Capscrew, M6x50 | 4 |
| 20***60 | Capscrew, M6x60 | 4 |
E1-8-1 Circuit,, Pressure Test Point
| 20***20 | Screw, Hexagon M8x20 | 2 |
| 25***29 | Socket, Test | 2 |
| 25***20 | Hose, 630mm | 6 |
E1-6-1 Circuit, Cooler
| 20***30 | Capscrew, M10x30 | 8 |
| 25***22 | Connector | 1 |
| 25***28 | Connector | 1 |
E2-5-1 Gearbox Roller, Drum Drive
| 20***20 | Screw, Hexagon M8x20 | 12 |
| 20***35 | Screw, Hexagon M16x35 | 16 |
| 23***55 | Circlip | 6 |
E2-1-1 Hydraulic Pump &, Pump Drive
| 20***35 | Screw, Hexagon M8x35 | 1 |
| 20***25 | Screw, Hexagon M6x25 | 1 |
| 20***30 | Screw, Hexagon M10 X 30 | 4 |
E3-1-1 Hydraulic, Oil Filter
| 26***02 | Kit-Gasket, Hydraulic Filter | 1 |
| 26***04 | Filter, Head | 1 |
| 26***42 | Cover, Filter | 1 |
E4-3-1 Ram, Engine Bonnet
| 22***25 | Bearing, Liner | 2 |
| 23***42 | Circlip | 2 |
| 72***20 | Ram | 1 |
E4-1-1 Ram, Steering
| 22***31 | Bearing | 2 |
| 72***20 | Ram, Steering Assembly | 2 |
| 72***21 | Piston Rod | 1 |
F Axles, Wheels & Transmission
F1-1-10 Smooth Drum, D Build, (Fig 2)
| 20***90 | Screw, Hexagon M20x90 | 6 |
| 20***00 | Screw, Hexagon M20x200 | 12 |
| 20***35 | Screw, Hexagon M16x35 | 2 |
F1-2-1 Tamping Foot Drum, Pd Build, (Fig 1)
| 20***70 | Screw, M20x70 | 6 |
| 20***80 | Screw, Hexagon M20x80 | 6 |
| 20***90 | Screw, Hexagon M20x90 | 6 |
F1-1-1 Smooth Drum, D Build, (Fig 1)
| 20***80 | Screw, Hexagon M20x80 | 6 |
| 20***90 | Screw, Hexagon M20x90 | 6 |
| 20***20 | Screw, Hexagon M20x220 | 8 |
F1-2-10 Tamping Foot Drum, Pd Build, (Fig 2)
| 20***90 | Screw, Hexagon M20x90 | 6 |
| 20***00 | Screw, Hexagon M20x200 | 12 |
| 20***35 | Screw, Hexagon M16x35 | 2 |
F2-1-30 Crown Wheel & Pinion, (Zf-Axle)
| 23***42 | Circlip | 1 |
| 27***30 | O Ring | 1 |
| 72***11 | Shim | 1 |
F2-1-10 Axle Casing
| 25***15 | Plug | 1 |
| 25***10 | Plug | 1 |
| 72***00 | Casing | 2 |
F2-1-20 Differential, Assembly
| 72***30 | Housing, Differential | 1 |
| 72***31 | Casing, Cover Lid | 6 |
| 72***32 | Ring, Snap | 1 |
F2-1-1 Axle Assembly, Sauer
| 20***80 | Screw, Hexagon M20x280 | 8 |
| 20***40 | Capscrew, M10x40 | 7 |
| 20***60 | Capscrew, M20x60 | 4 |
F2-1-50 Axle, Planet Carrier
| 23***50 | Circlip | 8 |
| 23***55 | Circlip | 2 |
| 72***81 | Carrier | 2 |
F2-1-40 Axle Brakes
| 72***15 | Plug | 2 |
| 72***16 | O Ring | 2 |
| 72***30 | Cover | 2 |
F3-3-1 Wheels & Tyres, D Build
| 40***13 | Valve | 2 |
| 40***15 | Tyre | 2 |
| 72***20 | Wheel, & Tyre Assembly | 1 |
F3-4-1 Wheels & Tyres, Pd Build
| 40***15 | Tyre | 1 |
| 72***02 | Tube, Inner, 23.1/18-26 | 1 |
| 72***21 | Rim | 1 |
F3-5-1 Pd Shells, Scraper Coussinet, (Pd Build)
| 20***60 | Screw, Hexagon M20x60 | 36 |
| 20***20 | Screw, Hexagon M24x120 | 18 |
| 20***70 | Screw, Hexagon M16x70 | 2 |
U Engine
U1-1-1 Engine, Assembly
| 72***00 | Engine | 1 |
U4-1-1 Gasket Sets
| 02***17 | Kit, Gaskets, Top End Overhaul | 1 |
U4-2-1 Gasket Sets
| 02***18 | Kit, Gaskets, Bottom End Overhaul | 1 |
U6-1-1 Filter, Fuel Sediment
| 02***25 | Bolt, Banjo | 2 |
| 02***46 | O Ring | 1 |
| 02***52 | Washer, Sealing | 4 |
U6-3-1 Filter Oil, Cartridge
| 02***73 | Decal | 1 |
| 32***13 | Element, Engine Oil Filter, Cartridge | 1 |
U6-2-1 Fuel Filter, Location
| 02***87 | Screw | 2 |
| 02***93 | Washer, Sealing | 2 |
| 02***96 | Connector, Quick Disconnect | 2 |
U8-1-1 Water Pump, Drive
| 02***31 | Housing, Assembly, Fan Drive | 1 |
| 02***32 | Bearing | 1 |
| 02***33 | Circlip | 2 |
U12-2-1 Fuel Pipes, Pump-Filter
| 02***19 | Plug, Expansion, D=9.8mm | 1 |
| 02***14 | Washer, Sealing | 1 |
| 02***07 | Bolt, M8x1.25x25 | 1 |
U12-1-1 Fuel Pipes, Pump-Filter
| 02***43 | Hose, Fuel Feed | 1 |
| 02***44 | Hose, Fuel Feed | 1 |
U12-3-1 Injector Pipes
| 02***36 | Retainer, Fuel Pipe Connector | 6 |
| 02***31 | Connector | 6 |
| 02***32 | O Ring | 6 |
U13-1-1 Fuel Injector
| 02***08 | Screw | 12 |
| 02***33 | Clamp, Injector | 6 |
| 17***00 | Injector, Fuel | 6 |
U14-1-1 Rail, Fuel Injection
| 02***80 | Screw, M8 X 50 | 4 |
| 02***93 | Washer, Sealing | 1 |
| 02***34 | Valve, Pressure Relief | 1 |
U15-1-1 Pump, Fuel Injection
| 02***17 | Nut | 3 |
| 02***79 | Stud | 3 |
| 02***80 | Gear, Injection Pump | 1 |
U16-1-1 Water Pump
| 02***86 | Seal, Rectangular Ring | 1 |
| 02***29 | Screw, Hex Flange Head | 2 |
| 02***73 | Pump, Kit-Water | 1 |
U17-1-1 Water Inlet
| 02***66 | Plug, Pipe, 3/4"Npt | 1 |
| 02***98 | Seal, Rectangular Ring | 1 |
| 02***53 | Dowel | 2 |
U18-1-1 Thermostat Housing
| 02***13 | Screw | 3 |
| 02***64 | Seal, Thermostat | 1 |
| 02***90 | Thermostat | 1 |
U19-1-1 Rocker Cover
| 02***46 | Nut | 6 |
| 02***48 | Gasket, Filler Cap | 1 |
| 02***49 | Stud | 6 |
U20-1-1 Rocker Assembly
| 02***21 | Nut, 3/8"-24unf, Heavy Hexagon | 2 |
| 02***22 | O Ring | 4 |
| 02***10 | Screw, Flange Head, M8 X 50mm | 2 |
U21-1-1 Tappets
U22-2-1 Connector, Pipework
| 02***13 | Plug | 1 |
| 02***04 | Nut, Lock | 1 |
| 02***05 | Pipe, Elbow, Air Transfer | 1 |
U22-1-1 Turbocharger
| 02***36 | Nut | 4 |
| 02***78 | Stud | 4 |
| 02***46 | O Ring | 1 |
U23-1-1 Pipework, Turbocharger
| 02***47 | Adapter | 1 |
| 02***99 | O Ring | 2 |
| 02***46 | O Ring | 1 |
U25-2-1 Air Intake, Connection
| 02***04 | Nut, Lock | 1 |
| 02***08 | Pipe, Air Transfer | 1 |
| 02***09 | O Ring | 1 |
U25-1-1 Induction Manifold
| 02***10 | Screw, Flange Head, M8 X 50mm | 1 |
| 02***23 | Bolt | 1 |
| 02***76 | Screw | 7 |
U26-1-1 Exhaust Manifold
| 02***85 | Screw | 1 |
| 02***83 | Screw, Flange Head Cap | 1 |
| 02***90 | Seal, Valve Stem | 1 |
U26-2-1 Connection To/From, Cooler Circuit
| 02***13 | Plug | 1 |
| 02***73 | Clamp, D=81.8 | 1 |
| 02***04 | Nut, Lock | 1 |
U27-1-1 Cylinder Head, Valves & Gasket
| 02***03 | Plug, D=22.5mm | 11 |
| 02***85 | Kit-Exhaust Valve | 12 |
| 02***86 | Collet | 4 |
U28-1-1 Lifting Brackets
| 02***05 | Bolt | 2 |
| 02***12 | Bracket, Lifting | 1 |
| 02***14 | Screw, Flange Head | 4 |
U29-1-1 Oil Cooler
| 02***16 | Plug, Pipe | 2 |
| 02***29 | Adapter, Filter Connector | 1 |
| 02***33 | Spring, Oil Relief Valve | 1 |
U30-2-1 Filler Tube, Oil
| 02***87 | Screw | 2 |
| 02***26 | Seal | 1 |
| 02***89 | Kit, Filler Tube | 1 |
U30-1-1 Dipstick
| 02***19 | Plug, Expansion, D=9.8mm | 4 |
| 02***18 | Tube, Dipstick | 1 |
| 02***13 | Connector, Hose | 1 |
U31-1-1 Oil Sump
| 02***22 | Washer, Seal | 1 |
| 02***26 | Plug, Oil Drain | 1 |
| 02***27 | Washer, Seal | 1 |
U32-1-1 Oil Pump
| 02***32 | Screw | 4 |
| 02***20 | Pump, Lubricating Oil | 1 |
U33-1-1 Flywheel Assembly
| 02***75 | Gear, Flywheel Ring | 1 |
| 02***41 | Bolt | 8 |
| 02***45 | Flywheel, Assembly | 1 |
U34-2-1 Crankcase Breather
| 02***26 | Hose, Plain | 1 |
| 02***55 | O Ring | 1 |
| 02***15 | Seal, O Ring | 2 |
U34-1-1 Flywheel Housing
| 02***30 | Kit-Seal, Rear Oil | 1 |
| 02***67 | O Ring | 1 |
| 02***68 | Plug | 1 |
U35-1-1 Camshaft, Timing Gear
| 02***39 | Dowel, Pin | 1 |
| 02***69 | Screw, Flange Head, M8 X 16mm | 2 |
| 02***23 | Camshaft | 1 |
U36-2-1 Timing Cover, Front
| 02***62 | Screw | 6 |
| 02***74 | Screw, M8 X 45 | 7 |
| 02***81 | Dowel, Ring | 2 |
U36-1-1 Timing Gear Cover, Rear
| 02***66 | Plug, Pipe, 3/4"Npt | 1 |
| 02***61 | Plate, Cover | 1 |
| 02***65 | Screw, M12 X 30 | 1 |
U37-1-1 Piston, Conrod, Assemblies
| 02***43 | Circlip | 12 |
| 02***32 | Bush, Small End | 1 |
| 02***33 | Bolt, Con-Rod | 2 |
U38-1-1 Crankshaft Assembly
| 02***09 | Kit-Wear Sleeve, Front | 1 |
| 02***59 | Kit-Wear Sleeve, Rear | 1 |
| 02***37 | Bearing, Main,Upper | 6 |
U39-1-1 Block Assembly
| 02***08 | Plug, Expansion, 17.73mm | 2 |
| 02***09 | Thimble | 12 |
| 02***11 | Dowel, Ring | 2 |
U42-1-1 Engine Mountings
| 20***00 | Screw | 4 |
| 20***25 | Screw, Hexagon M10x25 | 16 |
| 20***35 | Screw | 14 |
U43-1-1 Air Filter
| 40***43 | Valve, Dust | 1 |
| 72***50 | Filter, Assembly | 1 |
| 72***51 | Housing, Filter | 1 |
U44-4-1 Air Induction Hose
| 20***40 | Screw, Hexagon M8 X 40 | 2 |
| 20***40 | Screw, M10 X 40 | 3 |
| 21***00 | Nut, M8 | 2 |
U45-1-1 Exhaust System
| 20***30 | Screw, Hex M8 X 30 | 4 |
| 20***40 | Screw, M10 X 40 | 3 |
| 22***08 | Washer, M8 | 4 |
U45-2-1 Heat Shield
| 13***8A | Bolt | 1 |
| 14***7Z | Washer, Plain, M8; Replaces Khn1550, San 12620 | 1 |
| 25***85 | Clamp | 1 |
U46-2-1 Radiator Cover
| 20***20 | Screw | 14 |
| 22***08 | Washer, M8 | 14 |
| 27***10 | Strip, Edge Protection | 4 |
U46-1-1 Cooling Pack, Installation
| 13***3Z | Screw, M8 X 16 | 3 |
| 13***7Z | Screw, Hexagon M8 X 25 | 4 |
| 13***7Z | Bolt | 8 |
U47-1-1 Combination Cooler
| 72***00 | Cooler, Combination Pack | 1 |
U48-3-1 Cylinder Block Drain
| 23***09 | Clamp | 1 |
| 25***71 | Connector | 1 |
| 25***18 | Nut | 1 |
U48-1-10 Cooler
| 20***25 | Screw, Hexagon M8x25 | 28 |
| 22***08 | Washer | 28 |
| 72***00 | Cooler, Combination Pack | 1 |
U48-1-1 Radiators And Hoses
| 13***1Z | Bolt, M10 X 10 | 2 |
| 20***30 | Capscrew, M10x30 | 8 |
| 22***10 | Washer | 2 |
U48-2-1 Expansion Tank
| 12***79 | Tank, Expansion For Sensor, Assembly | 1 |
| 20***16 | Screw, M6 X 16 | 2 |
| 20***30 | Screw, Hex M8 X 30 | 2 |
U49-1-1 Fan
| 20***80 | Screw | 4 |
| 28***20 | Washer | 4 |
| 72***90 | Fan Wheel | 1 |
U50-1-1 Low Pressure, Fuel System, Tank - Filter
| 20***30 | Screw, Hexagon M10 X 30 | 4 |
| 21***00 | Nut, M10 | 2 |
| 22***10 | Washer, M10 | 4 |
U56-1-1 Compressor, Airconditioning
| 72***01 | Compressor, Air, Conditioning | 1 |
| 72***03 | Screw, . | 3 |
| 72***04 | Washer, . | 2 |
U57-1-1 Engine Oil Drain
| 25***15 | Connector | 1 |
| 25***15 | Adapter | 1 |
| 25***15 | Plug | 1 |
VM166PD(TIER 3) serial number reference
Locate the machine identification plate on the frame. The Product Identification Number (PIN) includes the machine type, a check letter, and the serial number. Verify applicability with a JCB dealer.
| Prefix | Identifies | Notes |
|---|---|---|
| 2900500-2901999 | VM166PD (Tier 3) smooth drum roller | Confirmed by Tier 3 service manual (Pub. No. the OEM part reference-5). This range applies to VM46D/PD, VM75D/PD, VM132D/PD, VM146D/PD, VM166D/PD, and VM200D/PD. VM115D/PD and VM200D/PD have different serial ranges in the same manual. |
Frequently asked questions
What engine does the VM166PD (Tier 3) use?
The VM166PD (Tier 3) uses a Tier 3 compliant engine from JCB's Dieselmax or EcoMAX family, depending on the specific serial range and market configuration. Exact engine designation varies by build date and region.
What is the operating weight of the VM166PD?
The operating weight varies by configuration, including counterweight and tire setup. Specific weight figures are listed on the machine's Product Identification Number (PIN) plate and in the operation and maintenance manual for the exact serial range.
What model replaced the VM166PD (Tier 3)?
The VM166PD (Tier 3) is part of the Vibromax series. Successor models in the Vibromax line include later Tier-compliant variants, but specific replacement models depend on the production year and regional emissions regulations. Consult JCB dealer documentation for the exact successor to your serial number.
What VM166PD(TIER 3) owners discuss
What engine generation and specific failure modes are associated with the JCB VM166PD (Tier 3)?
The VM166PD (Tier 3) utilizes an early Tier 3 JCB 444 Dieselmax engine. These engines are prone to big end bearing failures on the crankshaft, particularly if oil change intervals are extended or oil quality is poor. Fuel injection pump faults are also common on these early mechanical and electronic variants. Unlike later Tier 4i engines which suffer from injector faults, the Tier 3 Dieselmax is primarily susceptible to bottom-end bearing wear and injection pump issues.
What are the typical hydraulic and powertrain behaviors for the VM166PD?
The VM166PD features a hydrostatic propulsion system. Operators report that hydraulic performance can degrade if the system is low on fluid or if the suction strainer is clogged. On older units, the orbital steering valve is a known failure point that can leak. Power loss is often linked to restricted air filtration in dusty environments, which overwhelms standard filters and causes accelerated ring and bore wear.
What undercarriage or wear patterns are typical for this machine type?
As a self-propelled vibratory roller, the VM166PD relies on pneumatic tires rather than a tracked undercarriage. Wear patterns typically involve tire degradation from vibration and heat, and front axle assembly wear including bearings, seals, and exciter shafts. The vibrating drum compaction system places significant stress on drum bearings and eccentric weights. Operators should monitor the multi-disk parking brake for wear and hydraulic release function.
What are the common electrical or sensor issues for the VM166PD (Tier 3)?
Starting problems are the most common electrical complaint. Causes include flat batteries (requiring at least 12.4V for 12V systems or 24.8V for 24V systems), corroded terminals, or weak earth straps. Hard starting in cold weather may indicate failed glow plugs or a faulty glow plug relay/timer. On later electronic variants, sensor faults preventing the ECU from allowing the engine to run can also cause no-start conditions.
What serial number range applies to the VM166PD (Tier 3)?
The VM166PD (Tier 3) covers serial numbers from the OEM part reference to the OEM part reference. This range is distinct from the Tier 2 VM166D/PD which covers serials the OEM part reference-the OEM part reference, the OEM part reference-the OEM part reference, and the OEM part reference-the OEM part reference. The Tier 3 manual (Publication No: the OEM part reference-5) applies specifically to this serial block.
What specific engine identification codes should be checked on the VM166PD (Tier 3)?
The JCB 444 engine identification number is 17 digits. Position 1 indicates displacement (S=4.4L, D=4.8L). Position 2 indicates aspiration/injection type: D=turbocharged mechanical fuel injection (Tier 3), E=electronic common rail fuel injection (Tier 3), or F=turbocharged and aftercooled (mechanical Tier 3). Position 5 indicates country of manufacture (U=United Kingdom). The last three parts of the identification number are stamped on the cylinder block.
What should be checked when buying a used VM166PD (Tier 3)?
Verify the machine identification plate and engine serial plate to confirm the Tier 3 status and correct serial range (the OEM part reference-the OEM part reference). Check for brown sludge in the coolant expansion bottle, which indicates silicate separation and overdue coolant changes. Inspect the big end bearings for knock under load, check the turbocharger for shaft play, and verify the glow plug operation for cold starts. Ensure the hydraulic suction strainer is clean and the orbital steering valve is not leaking. Have your dealer verify the exact engine variant and emissions components against the serial number.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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