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Crankcase Breather Filter Kit
Both pumps work together
D-701-38) The OEM Duramax cast-aluminum cylinder heads fall short over time - the different heat expansion rates between cast-iron engine block and cast-aluminum cylinder head cause head gasket scrubbing and eventually blown head gaskets
higher oil pressure
2020+ GM 6
Serpentine Belt - Long length for DF -GM LB7 2002-2004 3607mm 6 RIB - 113061420 2015-chevrolet-silverado-3500-hd-esi2323363 Crankcase Breather Filter KitPPE's replacement Dual Fueler Heavy Duty Serpentine Belt handles big horsepower and torque numbers and still lasts up to 3x longer than a comparable stock unit. This Part Fits: Year Make Model Submodel Notes 2002 GMC Sierra 3500 2003 GMC Sierra 3500 2004 GMC Sierra 3500 2002 GMC Sierra 2500 SL 2002 GMC Sierra 2500 SLT 2003 GMC Sierra 2500 SLT 2004 GMC Sierra 2500 SLT 2002 GMC Sierra 3500 SLT 2003 GMC Sierra 3500 SLT 2004 GMC Sierra 3500 SLT 2002 GMC
