Fleetguard WF2129 is the spin-on chemical-free coolant filter for Volvo D11, D13, and D16 and Mack MP7 / MP8 / MP10 engines, replacing Volvo 21937327, 21388479, 20458771 and Mack 5839WF2129. M16 x 1.5 thread, 4.17" overall length, 3.69" OD. Contains no SCA additive or DCA — for use with extended-life coolant (ELC / NOAT) systems where the truck takes its coolant chemistry from the bottle, not from the filter. Specifications Manufacturer Fleetguard (Cummins Filtration) Part Number WF2129 Replaces (OEM) Volvo 21937327 / 21388479 / 20458771; Mack 5839WF2129 Part Type Spin-On Chemical-Free Coolant Filter Engine Compatibility Volvo D11, D13, D16; Mack MP7, MP8, MP10 Chemical Additive None (chemical-free) Additive Base None Thread Size M16 x 1.5-6H INT Overall Length 4.17 in Largest Outside Diameter 3.69 in Gasket Outside Diameter 2.84 in Gasket Inside Diameter 2.47 in Cross References This coolant filter replaces or is equivalent to the following part numbers: Volvo: 21937327, 21388479, 20458771, VOE21937327, VOE21388479, VOE20458771 Volvo Construction Equipment: 39969696, 3969696, 2048771 Mack: 5839WF2129 Fleetguard: WF2129 Applications This coolant filter fits the following Volvo and Mack engines: Volvo D11 11.0L Volvo D13 12.8L (and VED13 / D13TC) Volvo D16 16.1L Mack MP7 11.0L Mack MP8 13.0L Mack MP10 16.1L Representative vehicles using these engines: Volvo VNL, VNR, VNM, VAH, VHD (modern EPA10/EPA13/EPA17) Mack Anthem, Pinnacle, Granite, TerraPro Volvo Construction Equipment (wheel loaders, articulated haulers, excavators with Volvo D-series power) WF2129 is chemical-free — do not substitute an additive-charged WF-series filter (WF2071, WF2072, WF2076 etc.) on a Volvo / Mack ELC system. Adding SCA chemistry to an ELC coolant system damages the coolant inhibitor package and can drop water-pump and seal life.
