Match the number on your original part first: this part replaces OEM 921103S501 / 921107B400 / 921107B401 / 921107Z800 and cross-references UAC CN 4978PFC. If any number matches, the part fits. Not sure? Tap the WhatsApp or Inquiry button on this page and send us your vehicle model, production year, engine displacement, or the OE number — our technical team will confirm compatibility before you order. Photos of your old part work too.
Every part is 100% tested before shipment. Production runs under an IATF 16949-certified quality management system, with four quality gates — testing, routine inspection, sampling inspection and final inspection — handled by a dedicated QC team with professional testing equipment. All items carry a one-year warranty from the shipping date, backed by order-level quality tracking.
This high-grade aftermarket replacement matches the original OEM part’s fit, form and function. Check the spec table OEM number for correct matching. We provide full OEM & ODM (custom logos, packaging, dimensions). Send drawings/samples/OE specs. Catalog and custom parts both come with a one-year warranty.
The MOQ depends on the specific part — for in-stock items, we accept single-piece orders. Yes, sample orders are welcome before bulk purchase, and we can also develop trial products in small quantities.
In-stock parts ship within 5 working days after we receive your deposit or full payment. Out-of-stock items are produced to order — lead time varies by part, generally around 30 working days.
We ship by sea freight, air freight and express courier (DHL, TNT, UPS, EMS, FedEx), working with long-term forwarder partners for competitive rates. You are also welcome to appoint your own forwarder.
