JCB 3DX vs 4DX | Parts and 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
Live catalogue hubs
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. Use the live catalogue hubs rather than a guessed interchange table.
We do not publish a full 3DX/4DX spec comparison — only fitment notes that can be confirmed against OEM numbers in the catalogue.
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