This is the reference page we wish existed when we started in the JCB parts industry. A single, comprehensive breakdown of every major parts category on the JCB 3DX backhoe loader — with OEM part number references, typical failure intervals, and notes for procurement teams. Bookmark it; share it with your workshop supervisor; use it as a checklist when building your annual parts order.
Hydraulic System Parts
| Part | OEM Reference | Failure Interval | Priority |
|---|
| Boom cylinder seal kit | 991/00108 | 1,500–2,000 hrs | High |
| Dipper cylinder seal kit | 991/00109 | 1,500–2,000 hrs | High |
| Bucket cylinder seal kit | 991/00110 | 2,000 hrs | Medium |
| Loader lift cylinder seal kit | 991/00113 | 2,000 hrs | Medium |
| Stabiliser cylinder seal kit | 991/00115 | 2,500 hrs | Low |
| Hydraulic return filter | 02/910150 | 500 hrs | High |
| Hydraulic breather filter | 02/910200 | 500 hrs | High |
| Hydraulic tank strainer | 02/910250 | 1,000 hrs | Medium |
Engine Service Parts
| Part | OEM Reference | Replacement Interval | Priority |
|---|
| Engine oil filter | 02/100326 | 250 hrs | High |
| Fuel filter primary | 02/631811 | 250 hrs | High |
| Fuel filter secondary | 02/631885 | 500 hrs | Medium |
| Air filter primary element | 32/915801 | 500 hrs | High |
| Air filter safety element | 32/915802 | 1,000 hrs | Medium |
| Fan belt V-belt set | 02/201024 | 500 hrs | High |
| Thermostat | 02/202304 | 2,000 hrs | Medium |
| Water pump | 02/202801 | 4,000 hrs | Low |
| Coolant hose set | Various | Inspect at 1,000 hrs | Medium |
Arm and Boom Wear Parts (Structural)
| Part | OEM Reference | Failure Interval | Notes |
|---|
| Bucket rod bush (dipper rod) | 550/40899 | 600–1,200 hrs | Most commonly replaced part on 3DX |
| King post carriage bush | 123/05546 | 2,000–3,000 hrs | Monitor for side play in slew |
| Boom pivot pin | 811/50236 | 2,000–3,000 hrs | Check for wear with feeler gauge |
| Dipper link pin | 811/50237 | 2,000 hrs | — |
| Loader arm pivot bush | 232/32001 | 1,500–2,000 hrs | Nylon composite; wear visible as play |
| Slew ring bearing | 450/10204 | 4,000–5,000 hrs | Monitor for noise; critical failure if missed |
| Bucket tooth set (5 teeth + 5 adapters) | 53103237 (adaptor) | 500–800 hrs depending on material | Replace when worn to 60% original height |
| Stabiliser pad | 812/00296 | Visually check quarterly | Replace when pad is worn flat |
Drivetrain and Axle Parts
| Part | OEM Reference | Notes |
|---|
| Rear axle crown pinion set | 450/10900 | Verify serial for India-spec 3DX |
| Planet gear set (rear axle) | 450/10216 | Replace as set if one gear shows damage |
| Rear axle sun gear | 450/12401 | Check with ring/planet when servicing |
| Front propshaft assembly | 914/49100 | Check U-joints for play at 1,000 hrs |
| Rear propshaft assembly | 914/49101 | Grease U-joints at 250 hrs |
| Transmission oil filter | 04/500800 | Replace with oil change at 1,000 hrs |
| Axle shaft seal set | 904/20002 | Replace if weeping oil at wheel hub |
| Hub carrier bearing set | 907/08300 | Check pre-load at 2,000 hrs |
Electrical System Parts
| Part | OEM Reference | Notes |
|---|
| Forward/reverse switch LH | 701/80296 | Common failure on older machines |
| Engine coolant temperature sensor | 701/45800 | Replace if overtemp warning intermittent |
| Alternator (60A) | 714/40111 | Check output voltage; replace if below 13.8V |
| Battery 95Ah / 950CCA | — | Use AGM in hot climates; replace at 70% capacity |
| Glow plugs (set of 4) | 25/222-201 | Replace if hard starting in cold; test resistance |
| Work light bulb (cab) | 701/80037 | Consider upgrading to LED for longer life |
Download or request the full catalogue: Rock Tearr Parts maintains a live digital catalogue with all 3DX-compatible parts at rocktearrparts.com/parts-list-table. For bulk procurement, submit an RFQ with your required parts list and we'll respond with pricing, availability, and lead times within 24 hours.
