GMC K1500 Cooling System Gaskets and Seals
This page covers cooling system gaskets and seals for the GMC K1500, spanning model years 1979–1999. The range includes gaskets for water pumps, thermostat housings, coolant outlets, and related sealing points throughout the cooling circuit. Pick your GMC K1500's year above to narrow the list to cooling system gaskets and seals with confirmed fitment. Every part shown is checked against our vehicle data.
Cometic C5347-039 Water Pump Gasket for Chevy Big Block Mark IV Gen V/VI
Cometic C5299-018 Water Pump Gasket for Chevy Small Block V8 & 4.3L V6
Cometic C5415-064 Exhaust Manifold Gasket Set for Chevy Small Block V8
Cometic C15191 Water Outlet Gasket - Aluminum Carrier with Rubber Insert, 2-Bolt
Cometic C5421-125 Intake Manifold Gasket Set for Chevrolet Gen-1 Small Block V8
Cometic C5346-047 Water Outlet Gasket for Chevy Big Block Mark IV Gen V/VI
Cometic C5299-032 Water Pump Gasket for Chevy 4.3L V6 & Gen-1 Small Block V8
Cometic C5346-094 Water Outlet Gasket for Chevrolet Big Block V8
Cometic C5538-094 Water Outlet Gasket for Chevrolet Gen-1 Small Block V8
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What's here for your GMC K1500
- Engine water pump gaskets and mounting gaskets
- Engine coolant thermostat housing gaskets
- Engine coolant thermostat gaskets and seals
- Engine coolant outlet and water inlet gaskets
- Engine oil cooler gasket sets
- OE-replacement gasket kits for manifold and coolant circuit interfaces
The widest selection here comes from Victor, MAHLE, Cometic, and Fel-Pro, covering the full range of cooling circuit sealing components for GMC K1500 applications across the 1979–1999 model years. Other categories GMC K1500 owners shop for: GMC K1500 Steering Gear and Parts, GMC K1500 Springs and Suspension Parts and GMC K1500 Exterior Lights, or browse all GMC K1500 parts and accessories.