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GMC C3500 Valve Seals

Looking for aftermarket parts to modify or upgrade your GMC C3500 with valve seals? At Tunersports.com we carry a huge selection of the top name brand performance valve seal parts and accessories.

Valve Seal Parts:

Only show in-stock parts

COMP Cams Valve Seal Kits

IN STOCK - DROPSHIPS 501-12 COMP Cams offers a complete line of valve stem Seals, from the stock GM "O-Ring" to the positive-stop PTFE Seal. These Seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The "O-Ring" Seals use the standard retainer and oil splash shi... COMP Cams Valve Seals 11/32in O Ring 1979-1980 GMC C3500 Base / High Sierra / Sierra Classic / Sierra Grande $33.44 Details
IN STOCK - DROPSHIPS 501-16 Fits: 11/32" Valve Stems / OE-Size Valve Guides (.400" Outer Diameter). Valves Seals keep unwanted oil from entering the combustion chamber through clearance in the valve guides. Use standard o-ring Seal retainer and oil splash shield. Requires no machining.... COMP Cams Valve Seals 11/32in O Ring 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic 1988-1993 GMC C3500 Sierra / Sierra SLX 1988-1995 GMC C3500 Sierra SLE 1994-1995 GMC C3500 Sierra SL / Sierra SLT $34.74 Details
IN STOCK - DROPSHIPS 504-16 Fits: 3/8" Valve Stems - OE-Size Valve Guides (.900" Outer Diameter). Valves Seals keep unwanted oil from entering the combustion chamber through clearance in the valve guides. Normally used when a larger-than-stock diameter spring is used. Requires no machining.... COMP Cams Valve Seals 3/8in UmBRella 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic 1988-1993 GMC C3500 Sierra / Sierra SLX 1988-1996 GMC C3500 Sierra SLE 1994-1996 GMC C3500 Sierra SL / Sierra SLT $42.23 Details

COMP Cams Valve Seals

IN STOCK - DROPSHIPS 504-1 Fits: 3/8" Valve Stems - OE-Size Valve Guides (.900" Outer Diameter)Valves Seals keep unwanted oil from entering the combustion chamber through clearance in the valve guidesNormally used when a larger-than-stock diameter spring is usedRequires no machining.... COMP Cams Valve Seal 3/8in UmBRella 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic 1988-1993 GMC C3500 Sierra / Sierra SLX 1988-1996 GMC C3500 Sierra SLE 1994-1996 GMC C3500 Sierra SL / Sierra SLT $27.01 Details