JCB 3DX vs 4DX — Parts & Compatibility Notes
High-level differences buyers should know when stocking hydraulics, axles, and engine peripherals across 3DX and 4DX fleets.
Key points
- 4WD-specific driveline items
- Shared filter and seal families
- RFQ tips for mixed fleets
3DX and 4DX share many service items (filters, common hydraulic fittings, engine peripherals) but diverge on 4WD-specific driveline, certain axle, and brake components. Always quote serial range and axle type on your RFQ — “4DX” alone is not enough for a guaranteed match on hub or shaft parts.
Mixed fleets should maintain separate fast-moving SKUs per model family where interchange is not documented, and use cross-reference sheets from your workshop for ambiguous assemblies.
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