WIX Filters 33732 Fuel Water Separator Filter

The WIX 33732 Fuel Water Separator Filter is a spin-on diesel fuel filtration unit that removes water and contaminants before fuel reaches injectors and engine components in heavy-duty diesel systems. It uses an enhanced cellulose filtration media with a 13-micron nominal rating, measures 7.58 inches tall by 3.65 inches in outer diameter at the top, features a 1-14 thread, supports 12–15 GPM flow, and includes a water drain feature and a sensor port. Commonly installed on Cummins QSC and QSL Tier 3 engines in construction equipment, industrial machinery, generators, and fleet vehicles to protect injectors and extend diesel engine service life, the spin-on design simplifies maintenance and water drainage; cross references include NAPA Gold 3732 and OEM equivalents Cummins 3973233, Fleetguard FS19732, Donaldson P550848.