Looking for aftermarket parts to modify or upgrade your GMC S15 with head gaskets? At Tunersports.com we carry a huge selection of the top name brand performance head gasket parts and accessories.

SHIPS FROM MANUFACTURER C15009-020Fully cured nitrile butadiene rubber binder for maximum fluid resistance... Cometic Chevrolet LB1/LB4/LU2 Gen-1 90 Degree V6 .020in Fiber Fuel Pump Mounting Gasket 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $33.96 |
SHIPS FROM MANUFACTURER C15229A chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core... Cometic GM 7.5in .032in AFM Differential Cover Gasket - 10 Bolt 1982-1982 GMC S15 Sierra Grande 1982-1990 GMC S15 Base / High Sierra / Sierra Classic 1983-1983 GMC S15 Gypsy 1986-1988 GMC S15 Gypsy 1987-1987 GMC S15 EL $39.18 |
SHIPS FROM MANUFACTURER C5739-027MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .027in MLS Cylinder Head Gasket - 4.060in Bore 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $121.11 |
SHIPS FROM MANUFACTURER C5739-030MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .030in MLS Cylinder Head Gasket - 4.060in Bore 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $121.11 |
SHIPS FROM MANUFACTURER C5739-036MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy 229/262 V-6 4.3L 4.060in Bore .036 inch MLS Head Gasket 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $121.11 |
SHIPS FROM MANUFACTURER C5739-040MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy 229/262 V-6 4.3L 4.06in Bore .040 inch MLS Head Gasket 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $121.11 |
SHIPS FROM MANUFACTURER C5739-045MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .045in MLS Cylinder Head Gasket - 4.060in Bore 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $121.11 |
SHIPS FROM MANUFACTURER C5739-051MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .051in MLS Cylinder Head Gasket - 4.060in Bore 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $121.11 |
SHIPS FROM MANUFACTURER C5739-056MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .056in MLS Cylinder Head Gasket - 4.060in Bore 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $150.19 |
SHIPS FROM MANUFACTURER C5739-060MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .060in MLS Cylinder Head Gasket - 4.060in Bore 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $150.19 |
SHIPS FROM MANUFACTURER C5739-080MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .080in MLS Cylinder Head Gasket - 4.060in Bore 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $160.39 |
SHIPS FROM MANUFACTURER C5739-120MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .120in MLS Cylinder Head Gasket - 4.060in Bore 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $224.47 |
SHIPS FROM MANUFACTURER C5740-027MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .027in MLS Cylinder Head Gasket - 4.120in Bore 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $121.11 |
SHIPS FROM MANUFACTURER C5740-040MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy 229/262 V-6 4.3L 4.12in Bore .040 inch MLS Head Gasket 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $121.11 |
SHIPS FROM MANUFACTURER C5740-051MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .051in MLS Cylinder Head Gasket - 4.120in Bore 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $121.11 |
SHIPS FROM MANUFACTURER C5740-120MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .120in MLS Cylinder Head Gasket - 4.120in Bore 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $224.47 |
SHIPS FROM MANUFACTURER C5741-030MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .030in MLS Cylinder Head Gasket - 4.155in Bore 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $121.11 |
SHIPS FROM MANUFACTURER C5741-040MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy 229/262 V6 4.3L 4.155in .040in MLS Head Gasket 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $121.11 |
SHIPS FROM MANUFACTURER C5741-045MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .045in MLS Cylinder Head Gasket - 4.155in Bore 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $121.11 |
SHIPS FROM MANUFACTURER C5741-051MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .051in MLS Cylinder Head Gasket - 4.155in Bore 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $121.11 |
SHIPS FROM MANUFACTURER C5741-060MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .060in MLS Cylinder Head Gasket - 4.155in Bore 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $150.19 |
SHIPS FROM MANUFACTURER C5741-075MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .075in MLS Cylinder Head Gasket - 4.155in Bore 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $150.19 |
SHIPS FROM MANUFACTURER C5741-080MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .080in MLS Cylinder Head Gasket - 4.155in Bore 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $160.39 |
SHIPS FROM MANUFACTURER C5741-140MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy 229/262 V6 4.3L 4.155in .140in MLS Head Gasket 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $150.19 |
SHIPS FROM MANUFACTURER PRO1006T-4060-040MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy LB1/LB4 Gen1 90 Degree V6 Top End Gasket Kit-4.060in Bore-.040in MLS Cyl Head Gasket 1988-1988 GMC S15 Gypsy 1988-1990 GMC S15 Base / High Sierra / Sierra Classic $196.00 |