Description Fleetguard WF2127 is a non-chemical spin-on coolant water filter for heavy-duty diesel engine cooling systems. It uses 40-micron StrataPore media to provide filtration-only protection for coolant circuits without adding supplemental additives. The filter has M36 x 2-6G threads, approximately 146 mm overall height and 93.7 mm outside diameter, and is commonly used on Cummins engines in Freightliner, International, Peterbilt, Kenworth, Mack, Volvo and Western Star applications. Cross references include Cummins 3680434 and 393292900, Alliance ABPN10GWF2127, Baldwin B5087, Donaldson P550867, Luber-Finer LFW2127, Wix 24113, NAPA 4113, Carquest 89113, Hitachi E0A000547 and Ingersoll-Rand 57645202.