Quick answer: Genuine JCB parts are sold through JCB’s authorised channel with OEM branding and warranty terms tied to JCB Ltd. Aftermarket (OEM-compatible) parts are manufactured to match OEM drawings and part numbers but sold by independent suppliers, often at lower unit cost for fleets and export buyers who accept supplier QC instead of OEM warranty. Canonical buying page: Genuine vs aftermarket.
What are genuine JCB parts?
Genuine parts are produced or distributed under JCB’s supply chain. They carry JCB packaging, are invoiced through authorised dealers, and are covered by JCB’s commercial warranty policies where applicable. Pricing reflects brand, logistics, and dealer margins. For warranty-critical failures on new machines, genuine supply is often mandatory under fleet agreements.
What are aftermarket / OEM-compatible parts?
Aftermarket manufacturers reverse-engineer or cross-reference OEM part numbers (e.g. 550/40899, 320/A7373) and produce equivalents using their own SKUs. Quality tiers range from light-duty copies to precision-machined components with material certificates. The term OEM-compatible means dimensional and functional interchangeability—not that JCB manufactured the part.
Cost comparison (indicative)
| Factor | Genuine OEM | Quality aftermarket |
|---|---|---|
| Unit price (typical wear parts) | Baseline (100%) | Often 50–70% of OEM list |
| MOQ / lead time | Dealer stock dependent | Bulk RFQ from manufacturer |
| Warranty | OEM / dealer policy | Supplier QC + commercial terms |
| Export documentation | Through authorised channel | Exporter invoice + packing list |
Actual pricing depends on part family, quantity, and destination. Always request a written quote with MOQ and lead time.
When to use genuine vs aftermarket
- Genuine: In-warranty machines, recall campaigns, or contracts that explicitly require OEM supply.
- Aftermarket: Out-of-warranty fleets, export programmes, high-consumption wear parts (filters, seals, bushes), and dealer stock where margin and availability matter.
How Rock Tearr Parts ensures OEM-compatible quality
We manufacture and source from Palwali Industrial Area, Faridabad, with:
- OEM cross-reference on every catalogue line (search our OEM database)
- Dimensional inspection and material verification on critical steel and hydraulic lines
- Written MOQ, lead time, and fitment notes on each RFQ—no anonymous checkout
We are not affiliated with JCB Ltd. We supply independent workshops, dealers, and importers who need documented B2B supply from India.
FAQ
Are aftermarket parts legal to use on JCB machines? Yes, for out-of-warranty maintenance in most markets; fleet policies may vary.
Will aftermarket parts void my warranty? On in-warranty equipment, OEM channels may require genuine parts—check your agreement.
How do I verify a part number? Use the machine dataplate serial and our OEM lookup or submit an RFQ.
Next step: Browse our OEM-compatible JCB parts catalogue or request bulk pricing on Get a quote.


