Quick answer: Order JCB 3DX parts by system (hydraulics, engine service, arm and boom wear, drivetrain, electrical), not from a cab badge. Use this page as a fleet checklist. Confirm the OEM or casting stamp and the dataplate serial on RFQ. Interchange is written on the quote, not assumed from the model name.
This is the reference we use when a workshop sends a mixed 3DX basket: group the lines, match stamps, then quote. Bookmark it for annual stocking. For live catalogue rows, open the 3DX RFQ hub. If you already have a number, use OEM lookup. No stamp: identify from a photo.
How to use this list
- Tick the system that is down (hydraulics vs wear vs service filters).
- Copy the OEM stamp from the failed part, not only the row below.
- Add machine serial, quantity, and destination on one RFQ.
- For mixed 3DX / 3CX fleets, read 3DX vs 3CX compatibility before consolidating stock.
OEM numbers in the tables are typical published cross-references from our procurement notes. Confirm the stamp on the part in your yard. We do not publish list prices here. MOQ and dispatch are on the written quote.
Hydraulic system parts
Leaks, drift, and slow cycle usually start at seals, filters, or the pump. This table is a stocking list. Symptom diagnosis lives on the hydraulic system failure guide and the pump or cylinder failure pages. Do not order a “3DX seal kit” by model name. Measure bore and rod, then see the seal kit guide.
| Part | Typical OEM ref | Notes |
|---|---|---|
| Boom cylinder seal kit | 991/00108 | Confirm bore/rod; not a universal 3DX kit |
| Dipper cylinder seal kit | 991/00109 | Same: stamp + measurements |
| Bucket cylinder seal kit | 991/00110 | Often different gland to dipper |
| Loader lift cylinder seal kit | 991/00113 | Loader side, not backhoe ram |
| Stabiliser cylinder seal kit | 991/00115 | Lower rotation than boom kits |
| Hydraulic return filter | 02/910150 | Change with oil after a hose burst |
| Hydraulic breather filter | 02/910200 | Dusty sites: shorten interval |
| Hydraulic tank strainer | 02/910250 | Inspect if pump cavitates |
Browse hydraulic cylinder parts and seals.
Engine service parts
Filters and belts are high-rotation. Intervals follow the hour meter and site dust, not a public price list. Black smoke is often intake or fuel, not an automatic injector order. See black smoke and the maintenance schedule.
| Part | Typical OEM ref | Notes |
|---|---|---|
| Engine oil filter | 02/100326 | Quote with oil grade on RFQ |
| Fuel filter primary | 02/631811 | Water in fuel: change both stages |
| Fuel filter secondary | 02/631885 | Do not skip after primary only |
| Air filter primary element | 32/915801 | Dusty sites: inspect more often |
| Air filter safety element | 32/915802 | Replace if primary is ruptured |
| Fan belt V-belt set | 02/201024 | Check engine variant year |
| Thermostat | 02/202304 | Overheat: see engine overheating guide |
| Water pump | 02/202801 | Confirm serial; not a guess from photos |
Category: filters.
Arm and boom wear parts
Pins and bushes fail from missed greasing and abrasive soil. Replace pin and bush as a set when the bore is oval. Measure pin OD and bush ID. See pin and bush replacement notes and worn pins and bushes.
| Part | Typical OEM ref | Notes |
|---|---|---|
| Bucket rod bush (dipper rod) | 550/40899 | High rotation on 3DX; confirm stamp |
| King post carriage bush | 123/05546 | Monitor side play in slew |
| Boom pivot pin | 811/50236 | Check wear with a feeler gauge |
| Dipper link pin | 811/50237 | Quote length and diameter |
| Loader arm pivot bush | 232/32001 | Play is visible before seizure |
| Slew ring bearing | 450/10204 | Noise is a quote trigger, not a DIY spec |
| Bucket tooth / adapter family | 53103237 (adapter example) | Wear to height, not to a calendar |
| Stabiliser pad | 812/00296 | Replace when the pad is worn flat |
Category: pins and pivots.
Drivetrain and axle parts
Axle internals are serial-sensitive. India-spec 3DX rear axles are not assumed interchangeable with every 3CX. Quote the dataplate. Noise diagnosis: axle noise.
| Part | Typical OEM ref | Notes |
|---|---|---|
| Rear axle crown pinion set | 450/10900 | Verify serial for India-spec 3DX |
| Planet gear set (rear axle) | 450/10216 | Replace as a set if one gear is damaged |
| Rear axle sun gear | 450/12401 | Inspect with ring and planet |
| Front propshaft assembly | 914/49100 | U-joint play at service |
| Rear propshaft assembly | 914/49101 | Grease on the hour-meter interval |
| Transmission oil filter | 04/500800 | With transmission oil change |
| Axle shaft seal set | 904/20002 | Weep at hub: quote seals, not a guess |
| Hub carrier bearing set | 907/08300 | Pre-load is a workshop job |
Electrical system parts
Switches and sensors fail on older hours. Quote the stamp on the failed unit. We do not diagnose wiring from a catalogue photo.
| Part | Typical OEM ref | Notes |
|---|---|---|
| Forward/reverse switch LH | 701/80296 | Common on older machines |
| Engine coolant temperature sensor | 701/45800 | Intermittent overtemp warning |
| Alternator (60A class) | 714/40111 | Confirm output rating on the unit |
| Glow plugs (set) | 25/222-201 | Hard starting in cold: test first |
| Work light (cab) | 701/80037 | Quote housing vs bulb separately |
RFQ from this checklist
Send the ticked lines, OEM stamps, serial, and destination. Rock Tearr Parts manufactures and exports OEM-compatible lines from Palwali, Faridabad (GSTIN 06ABNFR6695L1Z8). Independent supplier, not a JCB dealer. Written MOQ, lead time, and fitment notes on the quote. Browse the catalogue or request a bulk quote.
