1R-0750 SECONDARY FUEL FILTER FOR DURAMAX 6.6L & CAT (3-PACK)

iFJF part No.: FJ-0750-3. Premium Diesel Filtration Engineered for Maximum Protection The 1R-0750 Secondary Fuel Filter for Duramax 6.6L & Cat (3-Pack) is a critical maintenance component for diesel engine applications. Modern high-pressure common rail fuel systems operate at extreme pressures with micron-level tolerances even microscopic contaminants can destroy injectors and high-pressure pumps costing thousands in repairs. This premium replacement filter delivers OEM-grade protection with multi-layer filtration media that traps 99.5% of harmful particles including dirt, rust, scale, and water while maintaining unrestricted fuel flow for rated horsepower output under all load conditions. Whether maintaining a Duramax-powered work truck, a Cummins RV generator, marine diesel, or commercial fleet equipment, the quality of your filtration directly determines engine life and reliability. Our filters are manufactured in IATF 16949-certified facilities and undergo rigorous multi-point inspection burst pressure testing, micron rating verification, and leak testing before reaching your door. Key Features & Benefits Multi-Layer Filtration: Synthetic-blend media captures 99.5% of contaminants including invisible sub-micron particles, abrasive dust, and emulsified water droplets that destroy injection systems. Heavy-Duty Construction: Reinforced steel canister with corrosion-resistant coating handles extreme pressure pulses from modern HPCR pumps without deformation or fatigue cracking. Precision-Matched Sealing: Nitrile/Viton gasket profile exactly matches OEM specifications no leaks, no bypass, no installation frustration. Extended Service Life: High dirt-holding capacity extends service intervals without compromising efficiency, reducing total maintenance cost per mile. Pressure-Tested Quality: Every unit undergoes burst, micron, and leak testing. IATF 16949-certified manufacturing ensures consistent quality. Technical Specifications Specification Detail Filter Type Spin-On / Cartridge Diesel Filter Filtration Media Multi-Layer Synthetic/Cellulose Blend Efficiency Beta 200 (99.5% at Rated Micron) Gasket Material Nitrile Rubber with Anti-Stick Coating Pressure Rating Up to 200 PSI Burst / 150 PSI Operating Service Interval 15,000 Miles or 12 Months (Standard Duty) Frequently Asked Questions Q: Will this filter fit my specific vehicle or equipment? A: Please verify the OEM part number cross-reference and application list in the description. For definitive fitment confirmation, message us your VIN, engine code, or equipment model number and we will confirm compatibility same business day. Q: How often should this filter be replaced? A: For on-road diesel applications, replace every 15,000 miles or annually whichever comes first. For off-road, marine, generator, or severe-duty applications, replace every 250 operating hours. Always refer to your OEM maintenance schedule. Q: Is this compatible with biodiesel blends? A: Yes, compatible with ULSD and biodiesel blends up to B20. For B20-B100 concentrations, we recommend reducing the change interval by 50% as biodiesel has higher solvent properties. Q: Why choose aftermarket over OEM dealer parts? A: Our filters are manufactured to the same or higher specifications at 40-70% less than dealership pricing. Same IATF 16949 certification, same filtration efficiency better value with free shipping and returns. Q: What symptoms indicate a clogged or failing filter? A: Hard starting, loss of power under load