Fleetguard FF5776 Fuel Filter 6-Pack OEM Cummins ISX ISX15 QSX 2893612

Fleetguard FF5776 Fuel Filter 6-Pack — Genuine OEM for Cummins ISX, ISX15, ISX12 & QSX Diesel Engines The Fleetguard FF5776 6-Pack is a box of six genuine Cummins Filtration secondary spin-on fuel filters engineered for Cummins ISX, ISX15, ISX12, and QSX heavy-duty diesel engines. Buying a 6-Pack means you have a full year of filter changes covered (at a 25,000-mile replacement interval, 6 filters covers approximately 150,000 miles of operation). Each OEM-quality filter uses StrataPore media technology rated at 5 microns to capture 98.7% of harmful contaminants before they reach your high-pressure common-rail fuel injection system, protecting injectors from abrasive wear and ensuring clean, dry fuel delivery for optimal engine performance. Designed with a heavy-wall steel housing and M90 x 2.0 mounting thread, the FF5776 provides superior durability under extreme operating conditions. This 6-Pack is the smart choice for fleet managers, owner-operators, and diesel mechanics who want to stock up and save — buying a case of 6 means fewer orders, lower per-filter cost, and uninterrupted maintenance schedules. Trusted across North America for Freightliner, Kenworth, Peterbilt, International, Western Star, and Volvo trucks powered by Cummins ISX engines. Technical Specifications Specification Value Part Number FF5776 Brand Fleetguard (Cummins Filtration) Filter Type Secondary Spin-On Fuel Filter Media Type StrataPore Micron Rating 5 Microns (SAE J 1985) Filtration Efficiency 98.7% Overall Height 226.52 mm (8.918 in) Largest Outside Diameter 119.89 mm (4.72 in) Thread Size M90 x 2-7H INT Gasket Material Rubber Housing Material Heavy-Wall Steel Placement Secondary / Engine-Mounted Compatible Cummins Engines Engine Configuration Application ISX15 CM2250, CM2250 SN, CM2350 X101 Class 8 On-Highway Trucks ISX12 / ISX11.9 CM2250, CM2350 X102 Class 8 On-Highway Trucks QSX11.9 CM2250 ECF Industrial / Off-Highway QSX15 CM2250, CM2250 X115, CM570 Industrial / Marine / Power Gen X15 CM2350 X125M 2017+ Class 8 Trucks ISX (2010+) 15L and 16L variants All ISX-powered trucks (2010+) Note: For 2020+ X15/X12 engines requiring extended service intervals, Fleetguard recommends the upgraded FF5825NN (NanoNet media). The FF5776 and FF5825NN share the same M90 x 2.0 mount and are physically interchangeable. Compatible Trucks & Equipment Truck Brand Models Years Freightliner Cascadia, Coronado, CC122, CC132 2010-2019 Kenworth T680, T800, T880, W900, C500, C550, T2000 2010-2019 Peterbilt 367, 384, 386, 387, 388, 389, 579, 587 2010-2019 International / Navistar ProStar, LoneStar, PayStar 5900i, 9900i, HX620 2012-2017 Western Star 4700, 4800, 4900, 6900 2010-2019 Volvo VNL Series (with Cummins ISX) 2010-2019 Cross-Reference Part Numbers Cross-Reference Brand 2893612 Cummins 2864993 Cummins 3685306 Cummins 4331007 Cummins 5365988 Cummins 5599456 Cummins BF9885 Baldwin P555776 Donaldson DBF6776 Donaldson LFF6776 Luber-Finer WK12003 Mann WF10123 Wix FF1219 Hastings H723WK Hengst SN40635 HIFI P11328 Parker Racor 600123 Fleetguard Internal When to Replace Replace the FF5776 every 25,000-40,000 miles or at each oil change interval, whichever comes first. Signs your fuel filter needs replacement include loss of power under load, extended cranking on start-up, fuel-restriction or low-suction-pressure fault codes, and reduced fuel economy. What's Included 6x Fleetguard FF5776 Fuel Filters with O-Rings — packed in one factory-sealed Fleetguard box. Each filter is individually sealed for freshness. You receive a full case of 6 genuine Fleetguard filters, not aftermarket or repackaged units. Why Choose Genuine Fleetguard? Fleetguard is the filtration division of Cummins Inc., the manufacturer of the ISX, ISX15, and QSX engines. When you install a Fleetguard FF5776, you are using the exact same filter that Cummins designs, tests, and approves for their engines. Aftermarket alternatives may fit the same mount but often use inferior media that allows more contaminants to reach your injectors, leading to premature fuel system wear and costly repairs ($5,000-$15,000+ for injector replacement on ISX engines).