1R-0750 FUEL FILTER FOR 2001-2016 DURAMAX 6.6L SPIN-ON REPLACEMENT BF7633 P551313

iFJF part No.: FJ-0750. 1R-0750 Fuel Filter for Duramax 6.6L Diesel High-Capacity Spin-On The 1R-0750 spin-on fuel filter is the gold standard for Duramax 6.6L diesel fuel filtration. Originally designed as a Caterpillar heavy equipment filter, the 1R-0750 delivers exceptional 5-micron filtration with high flow rates that protect your CP3/CP4 injection pump from water and particulate damage. This filter is compatible with 2001-2016 Chevrolet Silverado and GMC Sierra 2500HD/3500HD when used with a refit head adapter (sold separately), and also serves as a direct replacement for Caterpillar D4E, D6HLGP, and 3114 engine applications. Key Features 5-Micron Filtration : Captures 99% of particles down to 5 microns far superior to standard 10-15 micron filters for injection pump protection. High-Flow Design : Premium filtration media provides excellent flow rates even in cold weather your Duramax never starves for fuel under load. Broad Compatibility : Cross-references with BF7633 (Baldwin), P551313 (Donaldson), FF5320 (Fleetguard), P8334, LFF3347 available everywhere. Heavy-Duty Construction : Spin-on canister with 1-14 UNS-2B thread, 85.7mm OD, 181.5mm height built for industrial durability. Dual Application : Use as secondary filter on Duramax or direct replacement for Caterpillar equipment. Compatibility Application Make Model Engine 2001-2016 Chevrolet/GMC Silverado/Sierra 2500HD 3500HD 6.6L Duramax (LB7-LLY-LBZ-LMM-LML) with refit head Caterpillar D4E, D6HLGP Diesel Engine Caterpillar 14H, 3114 Diesel Engine (Secondary) Specifications Specification Detail Filter Type Spin-On Canister Filtration Rating 5 Micron Nominal Thread Size 1-14 UNS-2B Dimensions OD 85.7mm x Height 181.5mm Cross-References 1R0750, BF7633, P551313, P551740, FF5320, P8334, LFF3347, F65213, 33528 Why Choose iFJF? Industrial-Grade Filtration : Why trust a consumer-grade filter to protect a $5,000+ injection system? The 1R-0750 is engineered for heavy equipment. Available Everywhere : Cross-references to every major brand find replacements at any truck stop, farm supply, or auto parts store. Cost-Effective : $15-25 per filter vs. $45-60 for OEM Duramax change more frequently for better protection. Frequently Asked Questions Q: Can I install this on a stock Duramax without modifications? A: No the 1R-0750 requires a refit head adapter to replace the OEM filter housing. This filter is a direct fit only with the refit head installed (sold separately). Q: Will this work on my 2003 LB7 Duramax? A: Yes, provided you have the 1R-0750 refit head adapter installed. The filter fits all Duramax years (2001-2016) with the adapter. Q: How does this compare to the OEM AC Delco filter? A: The 1R-0750 offers 5-micron filtration (vs. 7-10 micron OEM), higher flow rates, significantly lower cost, and wider availability. Q: How do I prime the system after changing the filter? A: If your refit head has a primer pump, pump until firm. Otherwise, cycle the key to ON (without starting) 3-4 times to activate the lift pump. Q: What is the difference between this and the refit head kit? A: This listing is the filter element only. For the complete conversion kit with filter head, see our kit listing. Related Products 1R-0750 Fuel Filter + Billet Refit Head Complete Kit Duramax Diesel Resources Maintenance Guides: Duramax Fuel Filter Housing: Complete Compatibility Guide (2001 2024) 2001 2016 Duramax Fuel Filter Replacement: Complete DIY Guide Top 5 Diesel Fuel Filter Housing Problems (And How to