Paccar K37-1004 Fuel Filter replacement Fleetguard FS36401 5/32 Tube Verify your transmission model and

Verify your transmission model and input-shaft spline count before ordering

Replaces Paccar W2078001

Designed for primary fuel/water separation on Caterpillar 3406E

Freightliner Business Class M2 106

Paccar Parts: AS87080

Paccar K37-1004 Fuel Filter replacement Fleetguard FS36401 5/32 Tube Verify your transmission model andThe Fleetguard FS36401 is a StrataPore media fuel water separator that ships as the direct OE replacement for Paccar K37 1004 and Kenworth K371004 on Peterbilt and Kenworth trucks. It is the current revision upgrade to Fleetguard FS20075, and crosses to Donaldson P557004, Baldwin PF9928, Wix WF10249, and Luberfiner L5094F. Specifications Manufacturer Fleetguard (Cummins Filtration) Part Number FS36401 Part Type Fuel Water Separator (Spin On) Length 7.