Looking for aftermarket parts to modify or upgrade your GMC C2500 with gasket kits? At Tunersports.com we carry a huge selection of the top name brand performance gasket kit parts and accessories for your C2500.
Whether you have a 1979 or 2000 GMC C2500 in Base to Sierra SLX trim we have you covered. We have 28 gasket kits available to mod your C2500. All parts have free shipping to the Continental US 48 States.
 IN STOCK - DROPSHIPS 1576These BBK Premium Quality Exhaust Header Gasket Sets Are Designed To Give You a Quality Long Lasting Seal. Will Work On Most Stock Or Aftermarket Exhaust Header Applications... BBK GM 305 350 Exhaust Header Gasket Set 1996-1999 GMC C2500 Sierra SL / Sierra SLE / Sierra SLT $62.58 |
 IN STOCK - LOW C15250Cometic is dedicated to customer satisfaction and provides quality products, delivered on time at a competitive price, designed for each customer's specific application. Cometic is an industry leader in manufacturing processes and committed to pairing the highest possible quality materials with know... Cometic GM 4L80E .060in. AFM Transmission Oil Pan Gasket 1991-1993 GMC C2500 Sierra / Sierra SLX 1991-2000 GMC C2500 Sierra SLE 1994-2000 GMC C2500 Sierra SL $37.99 |
 SHIPS FROM MANUFACTURER PRO1004BCOMETIC StreetPro Kits cater to the budget-minded street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed for their rebuild. Quality gasket materials are a priority in StreetPro kits. Kit materials include: MLS, AFM, Aramid Fiber, and Armor Clad.... Cometic Street Pro GM 1987-92 350ci w/TPI 1989-93 350ci w/TBI & ZZ4 Bottom End Gasket Kit 1986-1986 GMC C2500 Base / High Sierra / Sierra Classic 1988-1993 GMC C2500 Sierra / Sierra SLE / Sierra SLX $91.06 |
 SHIPS FROM MANUFACTURER PRO1004TCOMETIC StreetPro Kits cater to the budget-minded street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed for their rebuild. Quality gasket materials are a priority in StreetPro kits. Kit materials include: MLS, AFM, Aramid Fiber, and Armor Clad.... Cometic Street Pro GM 1987-92 350ci w/TPI 1989-93 350ci w/TBI 4.100 Top End Gasket Kit 1988-1993 GMC C2500 Sierra / Sierra SLE / Sierra SLX $260.95 |
 IN STOCK - LOW PRO1005BCOMETIC StreetPro Kits cater to the budget-minded street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed for their rebuild. Quality gasket materials are a priority in StreetPro kits. Kit materials include: MLS, AFM, Aramid Fiber, and Armor Clad.... Cometic Street Pro GM 1970-85 454ci Big Block Bottom End Gasket Kit 1979-1982 GMC C2500 Sierra Grande 1979-1986 GMC C2500 Base / High Sierra / Sierra Classic $69.89 |
 SHIPS FROM MANUFACTURER PRO1005TCOMETIC StreetPro Kits cater to the budget-minded street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed for their rebuild. Quality gasket materials are a priority in StreetPro kits. Kit materials include: MLS, AFM, Aramid Fiber, and Armor Clad.... Cometic Street Pro GM 1970-85 454ci Big Block 4.375 Top End Gasket Kit 1979-1982 GMC C2500 Sierra Grande 1979-1985 GMC C2500 Base / High Sierra / Sierra Classic $210.09 |
 SHIPS FROM MANUFACTURER PRO1006BCOMETIC StreetPro Kits cater to the budget-minded street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed for their rebuild. Quality gasket materials are a priority in StreetPro kits. Kit materials include: MLS, AFM, Aramid Fiber, and Armor Clad.... Cometic Street Pro GM 1985-93 262ci 4.3L V6 Bottom End Gasket Kit 1985-1986 GMC C2500 Base / High Sierra / Sierra Classic 1988-1993 GMC C2500 Sierra / Sierra SLE / Sierra SLX $80.64 |
 SHIPS FROM MANUFACTURER PRO1006TCOMETIC StreetPro Kits cater to the budget-minded street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed for their rebuild. Quality gasket materials are a priority in StreetPro kits. Kit materials include: MLS, AFM, Aramid Fiber, and Armor Clad.... Cometic Street Pro GM 1985-93 262ci 4.3L V6 4.120 Top End Gasket Kit 1985-1986 GMC C2500 Base / High Sierra / Sierra Classic 1988-1993 GMC C2500 Sierra / Sierra SLE / Sierra SLX $184.62 |
 SHIPS FROM MANUFACTURER PRO1008TCOMETIC StreetPro Kits cater to the budget-minded street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed for their rebuild. Quality gasket materials are a priority in StreetPro kits. Kit materials include: MLS, AFM, Aramid Fiber, and Armor Clad.... Cometic Street Pro GM 1999-05 6.0L LS Series Gen III 4.100 Top End Kit (Truck Motor) 1999-2000 GMC C2500 Sierra SL / Sierra SLE / Sierra SLT $221.15 |
 SHIPS FROM MANUFACTURER PRO1040TCometic Street Pro 01-10 GM LS 4.8L / 5.3L / 3.840in Truck Suv Top End Gasket Kit 1979-1982 GMC C2500 Sierra Grande 1979-1986 GMC C2500 Base / High Sierra / Sierra Classic $371.54 |
 SHIPS FROM MANUFACTURER PRO1045BCOMETIC StreetPro Kits cater to the budget-minded street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed for their rebuild. Quality gasket materials are a priority in StreetPro kits. Kit materials include: MLS, AFM, Aramid Fiber, and Armor Clad.... Cometic Street Pro GM Gen-5 L19 454 Big Block Bottom End Gasket Kit 1991-1993 GMC C2500 Sierra / Sierra SLX 1991-1995 GMC C2500 Sierra SLE 1994-1995 GMC C2500 Sierra SL / Sierra SLT $85.27 |
 SHIPS FROM MANUFACTURER PRO1046TCOMETIC StreetPro Kits cater to the budget-minded street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed for their rebuild. Quality gasket materials are a priority in StreetPro kits. Kit materials include: MLS, AFM, Aramid Fiber, and Armor Clad.... Cometic Street Pro GM Gen-6 L21/29 454 Big Block 4.375in Bore .040in Top End Gasket Kit 1996-2000 GMC C2500 Sierra SL / Sierra SLE / Sierra SLT $246.92 |
 SHIPS FROM MANUFACTURER PRO1047TCOMETIC StreetPro Kits cater to the budget-minded street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed for their rebuild. Quality gasket materials are a priority in StreetPro kits. Kit materials include: MLS, AFM, Aramid Fiber, and Armor Clad.... Cometic Street Pro GM Gen-5 L19 454 Big Block 4.375in Bore .040in Top End Gasket Kit 1991-1993 GMC C2500 Sierra / Sierra SLX 1991-1995 GMC C2500 Sierra SLE 1994-1995 GMC C2500 Sierra SL / Sierra SLT $236.17 |
 SHIPS FROM MANUFACTURER C5376COMETIC Front and Rear Main Crank Seals are manufactured from the best materials available and are suited for all types of environments. Each seal meets or exceeds OEM quality. For Jesel Belt Drive. Ok for wet or dry sump systems... Cometic Chevy Gen 1 Small Block V8 Timing Cover Seal Jesel Belt Drive Dual Lip, Wet & Dry Sump 86587 1980-1982 GMC C2500 Sierra Grande 1980-1986 GMC C2500 Base / High Sierra / Sierra Classic $71.81 |
 SHIPS FROM MANUFACTURER C5378COMETIC Front and Rear Main Crank Seals are manufactured from the best materials available and are suited for all types of environments. Each seal meets or exceeds OEM quality. Ok for wet or dry sump systems... Cometic Chevy Gen 1 Small Block V8 Timing Cover Seal Dual Lip Wet & Dry Sump 86690 1980-1982 GMC C2500 Sierra Grande 1980-1986 GMC C2500 Base / High Sierra / Sierra Classic $100.36 |
 SHIPS FROM MANUFACTURER C5379COMETIC Front and Rear Main Crank Seals are manufactured from the best materials available and are suited for all types of environments. Each seal meets or exceeds OEM quality. Ok for wet or dry sump systems... Cometic Chevy Gen 1 Small Block V8 Rear Main Seal Dual Lip Wet & Dry Sump 86625 1980-1982 GMC C2500 Sierra Grande 1980-1986 GMC C2500 Base / High Sierra / Sierra Classic $100.30 |
 SHIPS FROM MANUFACTURER C5530COMETIC Timing Cover Gasket sets include high quality timing cover gasket and seal and are designed to seal the timing cover to engine block.... Cometic Chevrolet Gen-1 Small Block V8 Timing Cover Gasket Kit - Front Cover - 0.31in 1980-1982 GMC C2500 Sierra Grande 1980-1986 GMC C2500 Base / High Sierra / Sierra Classic $46.53 |
 SHIPS FROM MANUFACTURER 3866The High Flo runners work with the High-Flo baseplate and either stock or ported stock baseplates. Match with aftermaerket heads and high-performance cam. Compatible with stock fitings and emissions related equipment. No changes to the stock computer required.... Edelbrock T P I Runner Gskt Set 1988-1991 GMC C2500 Sierra / Sierra SLE / Sierra SLX $98.91 |
 SHIPS FROM MANUFACTURER 6998Edelbrock replacement gaskets are made to our high standards of quality and performance. Theyre the same high quality gaskets that we supply with our intakes, heads, carbs and other components.... Edelbrock Gasket Kit Front Cover Big Block Chevrolet 1979-1982 GMC C2500 Sierra Grande 1979-1986 GMC C2500 Base / High Sierra / Sierra Classic $57.41 |
 SHIPS FROM MANUFACTURER 7203These gaskets feature Micropore MP-2N an ultra-modern environmentally safe gasket material provides excellent sealing on rough, irregular flange surfaces.... Edelbrock BBC Oval Intake Gasket 1979-1982 GMC C2500 Sierra Grande 1979-1986 GMC C2500 Base / High Sierra / Sierra Classic $61.08 |
 SHIPS FROM MANUFACTURER 7208These gaskets feature Micropore MP-2N an ultra-modern environmentally safe gasket material provides excellent sealing on rough, irregular flange surfaces.... Edelbrock Gasket Intake Big Block Chevy Rect Port 6-Bolt Flange 1979-1982 GMC C2500 Sierra Grande 1979-1986 GMC C2500 Base / High Sierra / Sierra Classic $58.66 |
 SHIPS FROM MANUFACTURER 7209These gaskets feature Micropore MP-2N an ultra-modern environmentally safe gasket material provides excellent sealing on rough, irregular flange surfaces.... Edelbrock Gasket Intake Chevy90 V6 1985-1986 GMC C2500 Base / High Sierra / Sierra Classic 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE 1994-1995 GMC C2500 Sierra SL $55.33 |
 SHIPS FROM MANUFACTURER 7235These gaskets feature Micropore MP-2N an ultra-modern environmentally safe gasket material provides excellent sealing on rough, irregular flange surfaces.... Edelbrock Intake Gasket Set SBC w/ Etec Heads Qty 2 1996-2000 GMC C2500 Sierra SL / Sierra SLE / Sierra SLT $71.80 |
 SHIPS FROM MANUFACTURER 72358These gaskets feature Micropore MP-2N an ultra-modern environmentally safe gasket material provides excellent sealing on rough, irregular flange surfaces.... Edelbrock Bulk Intake Gasket Sets for Vortec/E-Tec Small-Block Chevy Includes 10-Sets 1996-2000 GMC C2500 Sierra SL / Sierra SLE / Sierra SLT $313.95 |
 SHIPS FROM MANUFACTURER 7251These Edelbrock water pump gaskets will keep your water pump leak-free. They are manufactured from quality materials and can be installed easily without any modifications.... Edelbrock Gasket Kit Water Pump Sbc 1980-1982 GMC C2500 Sierra Grande 1980-1986 GMC C2500 Base / High Sierra / Sierra Classic $44.34 |