Description Fleetguard WF2075 is a spin-on coolant filter with DCA4 pellet additive for heavy-duty diesel engine cooling systems, providing fine filtration and supplemental coolant chemistry to control corrosion and scale. It is widely used on Cummins-powered trucks and off‑highway equipment and as an OEM replacement on Freightliner, Peterbilt, Kenworth, Case IH, John Deere, Volvo, Hitachi and Komatsu machines, cross-referencing Cummins 299083, 3100308, 3305370, 3316461 and 3318318, Baldwin BW5075 and Donaldson P552075.