Cummins 3100308 WF2075 Coolant Filter Assembly

The Cummins 3100308 (Fleetguard WF2075) is a spin-on coolant filter designed for heavy-duty diesel engines. It incorporates DCA4 chemical additive technology to release supplemental coolant additives (SCAs) that protect against corrosion, scaling, and cylinder liner pitting. The filter features a plated steel endcap, outside-to-outside flow direction, and a 20 PSID recommended changeout differential pressure. Dimensional specifications include an outer diameter of 3.69 inches (93.73 mm) and a length of 5.41 inches (137.41 mm) with a 11/16-16 UN2B mounting thread. The unit weighs approximately 0.7 kg. It serves as a direct replacement for Cummins OE numbers 3318318, 3305370, 299083, and 4058965. Cross-reference interchange includes Baldwin BW5075, Donaldson P552075, Knecht WFC18, Mann-Filter WA940/7, Wix 24075, and NAPA 4075.