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Looking for aftermarket parts to modify or upgrade your GMC K2500 with gasket kits? At Tunersports.com we carry a huge selection of the top name brand performance gasket kit parts and accessories.
 IN STOCK - DROPSHIPS 1576This BBK Premium steel-reinforced graphite header gasket set is designed to give your GM GEN III 5.0L or 5.7L engine a quality, long lasting, secure seal. Reduce your risk of a blown header gasket and stop leaks before they happen.... BBK GM 305 350 Exhaust Header Gasket Set 1996-1999 GMC K2500 Sierra SL / Sierra SLE / Sierra SLT $70.39 |
 SHIPS FROM MANUFACTURER C5435Includes all Gaskets, O-Rings, Seals, Etc Needed for a Cam Change... Cometic Chevrolet Gen-1 Small Block V8 Camshaft Seal - Jesel Belt Drive - 86586 1980-1982 GMC K2500 Sierra Grande 1980-1986 GMC K2500 Base / High Sierra / Sierra Classic $81.72 |
 SHIPS FROM MANUFACTURER C5085Cometic GM 3.2/3.8/4.1/4.8L Inline 6 3.8/4.3L V6 Chevy Gen1 SB V8 Silicone Rear Main Seal-2 Piece 1980-1982 GMC K2500 Sierra Grande 1980-1986 GMC K2500 Base / High Sierra / Sierra Classic $44.66 |
 SHIPS FROM MANUFACTURER C5681Cometic Chevy 1955-1985 Gen1 Small Block V8 Rear Main Seal-Align Honed 400 & Aluminum Block-2 Piece 1980-1982 GMC K2500 Sierra Grande 1980-1986 GMC K2500 Base / High Sierra / Sierra Classic $59.00 |
 SHIPS FROM MANUFACTURER C15077Cometic GM Gen-V/VI Big Block V8 Molded Rubber Oil Pan Gasket - One-Piece 1991-1993 GMC K2500 Sierra / Sierra SLX 1991-1995 GMC K2500 Sierra SLE 1994-1995 GMC K2500 Sierra SL / Sierra SLT $59.28 |
 SHIPS FROM MANUFACTURER C15250A chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core... Cometic GM 4L80E .060in. AFM Transmission Oil Pan Gasket 1991-1993 GMC K2500 Sierra / Sierra SLX 1991-2000 GMC K2500 Sierra SLE 1994-2000 GMC K2500 Sierra SL / Sierra SLT $48.70 |
 SHIPS FROM MANUFACTURER C5294-075AFMA chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core... Cometic Chevy Gen1 Small Block V8 .075in AFM Oil Pan Gasket Kit-Right Side Dipstick-Thick Front Seal 1980-1982 GMC K2500 Sierra Grande 1980-1985 GMC K2500 Base / High Sierra / Sierra Classic $55.58 |
SHIPS FROM MANUFACTURER C5294-NDSCometic Chevrolet Gen-1 Small Block V8 Oil Pan Gasket Kit - No Dipstick Hole - Thick Front Seal 1980-1980 GMC K2500 Base / High Sierra / Sierra Classic / Sierra Grande 1983-1983 GMC K2500 Base / High Sierra / Sierra Classic $63.72 |
 SHIPS FROM MANUFACTURER C5296Fully cured nitrile butadiene rubber binder for maximum fluid resistance... Cometic Chevrolet Gen-1 Small Block V8 .094i Fiber Oil Pan Gasket Kit Right Side Dipstick Thin Front 1980-1982 GMC K2500 Sierra Grande 1980-1986 GMC K2500 Base / High Sierra / Sierra Classic $62.01 |
 SHIPS FROM MANUFACTURER C5488Cometic Chevy Gen1 SB V8 Oil Pan Gasket Kit-Left Side Dipstick 1980-1982 GMC K2500 Sierra Grande 1980-1986 GMC K2500 Base / High Sierra / Sierra Classic $55.24 |
 SHIPS FROM MANUFACTURER C5488-060Cometic Chevy Gen1 SB V8 .060in Oil Pan Gasket Kit-Left Side Dipstick 1980-1982 GMC K2500 Sierra Grande 1980-1986 GMC K2500 Base / High Sierra / Sierra Classic $62.96 |
 SHIPS FROM MANUFACTURER PRO1004TCometic Street Pro Kits are geared toward the street rider who is looking to purchase a kit with all necessary gaskets and seals needed for your rebuild.... Cometic Street Pro GM 1987-92 350ci w/TPI 1989-93 350ci w/TBI 4.100 Top End Gasket Kit 1988-1993 GMC K2500 Sierra / Sierra SLE / Sierra SLX $274.00 |
 SHIPS FROM MANUFACTURER PRO1006BCometic Street Pro Kits are geared toward the street rider who is looking to purchase a kit with all necessary gaskets and seals needed for your rebuild.... Cometic Street Pro GM 1985-93 262ci 4.3L V6 Bottom End Gasket Kit 1985-1985 GMC K2500 Base / High Sierra / Sierra Classic 1988-1993 GMC K2500 Sierra / Sierra SLE / Sierra SLX $86.55 |
 SHIPS FROM MANUFACTURER PRO1006TCometic Street Pro Kits are geared toward the street rider who is looking to purchase a kit with all necessary gaskets and seals needed for your rebuild.... Cometic Street Pro GM 1985-93 262ci 4.3L V6 4.120 Top End Gasket Kit 1985-1985 GMC K2500 Base / High Sierra / Sierra Classic 1988-1993 GMC K2500 Sierra / Sierra SLE / Sierra SLX $196.00 |
 SHIPS FROM MANUFACTURER PRO1008TCometic Street Pro Kits are geared toward the street rider who is looking to purchase a kit with all necessary gaskets and seals needed for your rebuild.... Cometic Street Pro GM 1999-05 6.0L LS Series Gen III 4.100 Top End Kit (Truck Motor) 1999-2000 GMC K2500 Sierra SL / Sierra SLE / Sierra SLT $232.21 |
 SHIPS FROM MANUFACTURER PRO1045BCometic Street Pro Kits are geared toward the street rider who is looking to purchase a kit with all necessary gaskets and seals needed for your rebuild.... Cometic Street Pro GM Gen-5 L19 454 Big Block Bottom End Gasket Kit 1991-1993 GMC K2500 Sierra / Sierra SLX 1991-1995 GMC K2500 Sierra SLE 1994-1995 GMC K2500 Sierra SL / Sierra SLT $91.41 |
 SHIPS FROM MANUFACTURER PRO1046TCometic Street Pro Kits are geared toward the street rider who is looking to purchase a kit with all necessary gaskets and seals needed for your rebuild.... Cometic Street Pro GM Gen-6 L21/29 454 Big Block 4.375in Bore .040in Top End Gasket Kit 1996-2000 GMC K2500 Sierra SL / Sierra SLE / Sierra SLT $259.27 |
 SHIPS FROM MANUFACTURER PRO1047TCometic Street Pro Kits are geared toward the street rider who is looking to purchase a kit with all necessary gaskets and seals needed for your rebuild.... Cometic Street Pro GM Gen-5 L19 454 Big Block 4.375in Bore .040in Top End Gasket Kit 1991-1993 GMC K2500 Sierra / Sierra SLX 1991-1995 GMC K2500 Sierra SLE 1994-1995 GMC K2500 Sierra SL / Sierra SLT $247.98 |
 SHIPS FROM MANUFACTURER C5574-018A chemically blown, compounded, nitrile synthetic rubber bonded to an aluminum core... Cometic GM/Ford/Chrysler/Dodge .018in AFM Thermostat Housing Gasket 1980-1980 GMC K2500 Base 1980-1986 GMC K2500 Sierra Classic 1988-1993 GMC K2500 Sierra SLX $32.93 |
 SHIPS FROM MANUFACTURER C15615Fully cured nitrile butadiene rubber binder for maximum fluid resistance... Cometic Chevrolet Gen-1 Small Block V8 .031in Fiber Timing Cover Gasket 1980-1982 GMC K2500 Sierra Grande 1980-1986 GMC K2500 Base / High Sierra / Sierra Classic $37.16 |
 SHIPS FROM MANUFACTURER C5051Cometic Chevy 4.3L Gen1 90 Deg V6-1975-1995 Gen1 SB V8 Timing Cover Gasket Kit-w/ Thick Front Seal 1985-1985 GMC K2500 Base / High Sierra / Sierra Classic 1988-1993 GMC K2500 Sierra / Sierra SLX 1988-1995 GMC K2500 Sierra SLE 1994-1995 GMC K2500 Sierra SL / Sierra SLT $47.31 |
 SHIPS FROM MANUFACTURER C5087Cometic GM Gen 5/6 Big Block V8 Rear Main Seal Kit - 1 Piece 1991-1993 GMC K2500 Sierra / Sierra SLX 1991-1995 GMC K2500 Sierra SLE 1994-1995 GMC K2500 Sierra SL / Sierra SLT $60.14 |
 SHIPS FROM MANUFACTURER C5261-031Fully cured nitrile butadiene rubber binder for maximum fluid resistance... Cometic Chevrolet Gen-1 Small Block V8 .031in Fiber Timing Cover Gasket 1980-1982 GMC K2500 Sierra Grande 1980-1986 GMC K2500 Base / High Sierra / Sierra Classic $45.25 |
 SHIPS FROM MANUFACTURER C5376Cometic Chevy Gen 1 Small Block V8 Timing Cover Seal Jesel Belt Drive Dual Lip, Wet & Dry Sump 86587 1980-1982 GMC K2500 Sierra Grande 1980-1986 GMC K2500 Base / High Sierra / Sierra Classic $77.28 |
 SHIPS FROM MANUFACTURER C5379Cometic Chevy Gen 1 Small Block V8 Rear Main Seal Dual Lip Wet & Dry Sump 86625 1980-1982 GMC K2500 Sierra Grande 1980-1986 GMC K2500 Base / High Sierra / Sierra Classic $107.17 |