The Fleetguard FS20002 is an aftermarket fuel/water separator for 2001–2016 GM 6.6L Duramax diesel engines (LB7, LLY, LBZ, LMM, LML). Cummins Filtration's spin-on element pairs a 4-micron rating with up to 99% free-water separation and works with the OEM water-in-fuel sensor at flows up to 150 GPH. Direct replacement for ACDelco TP3012 / TP3018, GM 12633243 / 12664429, and WIX 33960. Signs You Need a New Fuel/Water Separator Water-in-fuel warning light illuminated on the dash Hard starting, rough idle, or hesitation under load Reduced fuel economy or power loss Visible water or contamination when draining the filter Specifications Manufacturer Fleetguard (Cummins Filtration) Part Number FS20002 Part Type Fuel/Water Separator (Spin-On) Engine Compatibility GM 6.6L Duramax (LB7, LLY, LBZ, LMM, LML) Micron Rating 4 micron Water Separation 99% Flow Rate up to 150 GPH Height 6.39" (162.3 mm) Outer Diameter 4.02" (102 mm) Thread Size 3 3/8-8 BUTT-2B Country of Origin USA Cross References This filter replaces or is equivalent to the following part numbers: ACDelco: TP3012, TP3018, TP1298B GM / Chevrolet: 12633243, 12664429, 98017645 Baldwin: BF7827, BF9882, BF46062 Donaldson: P550833, P550743 WIX: 33810, 33910, 33960, 33960XE NAPA: 3810, 3910, 3960, 3960XE FRAM: PS9059B Luber-Finer: LFF6012 Racor (Parker): PFF50216, PFF5544 Hastings: FF1220, FF1230 Carquest: 86960, 86960XE Isuzu: 8973854880 Applications This filter fits 6.6L Duramax engines installed in: GM 6.6L Duramax LB7 (2001–2004) GM 6.6L Duramax LLY (2004.5–2005) GM 6.6L Duramax LBZ (2006–2007) GM 6.6L Duramax LMM (2007.5–2010) GM 6.6L Duramax LML (2011–2016) Representative vehicles using these engines: Chevrolet Silverado 2500HD / 3500HD (2001–2016) GMC Sierra 2500HD / 3500HD (2001–2016) Isuzu NPR / NPR-HD with 6.6L Duramax Compatible with the OEM water-in-fuel sensor; transfer the sensor from the old filter on each change. Verify your engine code (LB7/LLY/LBZ/LMM/LML) before ordering.