1R-0750 Fuel Filter for Duramax 6.6L (5 Micron Spin-On)

No. On 2001-2016 Duramax 6.6L trucks it requires a 1R-0750 refit head adapter (sold separately) — it does not replace the factory filter housing directly. On Caterpillar equipment it is a direct spin-on replacement for 1R-0750.

It fits 2001-2016 Chevrolet Silverado and GMC Sierra 2500HD/3500HD with the 6.6L Duramax (LB7, LLY, LBZ, LMM, LML), when used with a 1R-0750 refit head adapter.

The 1R-0750 cross-references Caterpillar 1R-0750/1R0750, Baldwin BF7633, Donaldson P551313 and P551740, Fleetguard FF5320, Fram P8334, Luber-finer LFF3347, Purolator F65213 and WIX 33528.

No. The 1R-0750 is larger — 85.7 mm outer diameter, 181.5 mm height, 1-14 UNS-2B thread — than the factory Duramax filter, which is why a refit head adapter is required for the Duramax application.

Both are Caterpillar spin-on fuel filters, but the 1R-0750 uses a 1-14 UNS-2B thread while the 1R-0751 uses a 7/8-inch thread. Verify the thread on your filter head before ordering.

MOQ varies by product: 5–100 units for standard parts (see product page). Tier pricing decreases with volume. Custom parts usually ≥ 50 units, evaluated by process.

Stock/short-run: 7–15 days; bulk orders 20–35 days; custom 30–45 days incl. sampling. Note your deadline in the inquiry — sales will confirm capacity.

Add products to the inquiry list and submit with contact info. Sales contact you within 24h and issue a formal quotation (tier pricing + proforma invoice) within 48h. The AI assistant can pre-fill inquiries in chat.

Yes. We develop from drawings/samples and support private labeling. Process: evaluation → sampling (15–25 days) → approval → mass production.

Payment: T/T 30% deposit + 70% before shipment / L/C / Trade Assurance. Shipping: FOB Ningbo/Shanghai, CIF or DDP; EU & NA warehouses; sea/air/express.

ISO 9001 & IATF 16949; CE/UL/ATEX on key products. Every batch ships with inspection reports; third-party inspection (SGS/BV) supported.