GMC K15 Thermostat

ENGINE COOLANT THERMOSTAT, STAINLESS STEEL -- 195 degrees temperature rating; 2.13 x 0.91 x 0.91 in.; A high quality, OE replacement engine coolant thermostat; Backed by 1-year, unlimited-mileage warranty.

Fits the following 1975-1978 GMC K15 submodels:

• 1977-1978: Base; 8 Cyl 5.0L; "GAS"
• 1977-1978: High Sierra; 8 Cyl 5.0L; "GAS"

• 1977-1978: Sierra Classic; 8 Cyl 5.0L; "GAS"

• 1977-1978: Sierra Grande; 8 Cyl 5.0L; "GAS"

• 1975-1978: Base; 6 Cyl 4.1L; "GAS"

• 1975-1978: Base; 8 Cyl 5.7L; "GAS"

• 1975-1978: Base; 8 Cyl 6.6L; "GAS"

• 1975-1978: High Sierra; 6 Cyl 4.1L; "GAS"

• 1975-1978: High Sierra; 8 Cyl 5.7L; "GAS"

• 1975-1978: High Sierra; 8 Cyl 6.6L; "GAS"

• 1975-1978: Sierra Classic; 6 Cyl 4.1L; "GAS"

• 1975-1978: Sierra Classic; 8 Cyl 5.7L; "GAS"

• 1975-1978: Sierra Classic; 8 Cyl 6.6L; "GAS"

• 1975-1978: Sierra Grande; 6 Cyl 4.1L; "GAS"

• 1975-1978: Sierra Grande; 8 Cyl 5.7L; "GAS"

• 1975-1978: Sierra Grande; 8 Cyl 6.6L; "GAS"

• 1976-1976: Base; 8 Cyl 7.4L; "GAS"

• 1976-1976: High Sierra; 8 Cyl 7.4L; "GAS"

• 1976-1976: Sierra Classic; 8 Cyl 7.4L; "GAS"

• 1976-1976: Sierra Grande; 8 Cyl 7.4L; "GAS"

• 1975-1976: Base; 6 Cyl 4.8L; "GAS"

• 1975-1976: High Sierra; 6 Cyl 4.8L; "GAS"

• 1975-1976: Sierra Classic; 6 Cyl 4.8L; "GAS"

• 1975-1976: Sierra Grande; 6 Cyl 4.8L; "GAS"

Fits 22 more submodels. (Show all) Show less info

STANT ECONOMY THERMOSTAT -- 180 degrees, 2-1/8 x 7/8 x 25/32 in.; Comes with self-cleaning and self-aligning thermostat valve; Made of high strength stainless steel assembly; Offers engineered springs for smooth performance; A high quality, direct fit OE replacement thermostat.

Fits the following 1975-1978 GMC K15 submodels:

• 1977-1978: Base; 8 Cyl 5.0L; "GAS"
• 1977-1978: High Sierra; 8 Cyl 5.0L; "GAS"

• 1977-1978: Sierra Classic; 8 Cyl 5.0L; "GAS"

• 1977-1978: Sierra Grande; 8 Cyl 5.0L; "GAS"

• 1975-1978: Base; 6 Cyl 4.1L; "GAS"

• 1975-1978: Base; 8 Cyl 5.7L; "GAS"

• 1975-1978: Base; 8 Cyl 6.6L; "GAS"

• 1975-1978: High Sierra; 6 Cyl 4.1L; "GAS"

• 1975-1978: High Sierra; 8 Cyl 5.7L; "GAS"

• 1975-1978: High Sierra; 8 Cyl 6.6L; "GAS"

• 1975-1978: Sierra Classic; 6 Cyl 4.1L; "GAS"

• 1975-1978: Sierra Classic; 8 Cyl 5.7L; "GAS"

• 1975-1978: Sierra Classic; 8 Cyl 6.6L; "GAS"

• 1975-1978: Sierra Grande; 6 Cyl 4.1L; "GAS"

• 1975-1978: Sierra Grande; 8 Cyl 5.7L; "GAS"

• 1975-1978: Sierra Grande; 8 Cyl 6.6L; "GAS"

• 1976-1976: Base; 8 Cyl 7.4L; "GAS"

• 1976-1976: High Sierra; 8 Cyl 7.4L; "GAS"

• 1976-1976: Sierra Classic; 8 Cyl 7.4L; "GAS"

• 1976-1976: Sierra Grande; 8 Cyl 7.4L; "GAS"

• 1975-1976: Base; 6 Cyl 4.8L; "GAS"

• 1975-1976: High Sierra; 6 Cyl 4.8L; "GAS"

• 1975-1976: Sierra Classic; 6 Cyl 4.8L; "GAS"

• 1975-1976: Sierra Grande; 6 Cyl 4.8L; "GAS"

Fits 22 more submodels. (Show all) Show less info

AC DELCO ENGINE COOLING THERMOSTAT ASSEMBLY -- A high quality, direct fit OE replacement engine cooling thermostat assembly; With 12-month or 12,000-mile AC Delco warranty.

Fits the following 1975-1978 GMC K15 submodels:

• 1977-1978: Base; 8 Cyl 5.0L; "GAS, CARB, Naturally Aspirated, VIN U"
• 1977-1978: Base; 8 Cyl 6.6L; "GAS, CARB, Naturally Aspirated, VIN R"

• 1977-1978: High Sierra; 8 Cyl 5.0L; "GAS, CARB, Naturally Aspirated, VIN U"

• 1977-1978: High Sierra; 8 Cyl 6.6L; "GAS, CARB, Naturally Aspirated, VIN R"

• 1977-1978: Sierra Classic; 8 Cyl 5.0L; "GAS, CARB, Naturally Aspirated, VIN U"

• 1977-1978: Sierra Classic; 8 Cyl 6.6L; "GAS, CARB, Naturally Aspirated, VIN R"

• 1977-1978: Sierra Grande; 8 Cyl 5.0L; "GAS, CARB, Naturally Aspirated, VIN U"

• 1977-1978: Sierra Grande; 8 Cyl 6.6L; "GAS, CARB, Naturally Aspirated, VIN R"

• 1976-1978: Base; 6 Cyl 4.1L; "GAS, CARB, Naturally Aspirated, VIN D"

• 1976-1978: Base; 8 Cyl 5.7L; "GAS, CARB, Naturally Aspirated, VIN L"

• 1976-1978: High Sierra; 6 Cyl 4.1L; "GAS, CARB, Naturally Aspirated, VIN D"

• 1976-1978: High Sierra; 8 Cyl 5.7L; "GAS, CARB, Naturally Aspirated, VIN L"

• 1976-1978: Sierra Classic; 6 Cyl 4.1L; "GAS, CARB, Naturally Aspirated, VIN D"

• 1976-1978: Sierra Classic; 8 Cyl 5.7L; "GAS, CARB, Naturally Aspirated, VIN L"

• 1976-1978: Sierra Grande; 6 Cyl 4.1L; "GAS, CARB, Naturally Aspirated, VIN D"

• 1976-1978: Sierra Grande; 8 Cyl 5.7L; "GAS, CARB, Naturally Aspirated, VIN L"

• 1976-1976: Base; 8 Cyl 5.0L; "GAS, CARB, Naturally Aspirated, VIN Q"

• 1976-1976: Base; 8 Cyl 6.6L; "GAS, CARB, Naturally Aspirated, VIN U"

• 1976-1976: Base; 8 Cyl 7.4L; "GAS, CARB, Naturally Aspirated, VIN S"

• 1976-1976: Base; 8 Cyl 7.4L; "GAS, CARB, Naturally Aspirated, VIN Y"

• 1976-1976: High Sierra; 8 Cyl 5.0L; "GAS, CARB, Naturally Aspirated, VIN Q"

• 1976-1976: High Sierra; 8 Cyl 6.6L; "GAS, CARB, Naturally Aspirated, VIN U"

• 1976-1976: High Sierra; 8 Cyl 7.4L; "GAS, CARB, Naturally Aspirated, VIN S"

• 1976-1976: High Sierra; 8 Cyl 7.4L; "GAS, CARB, Naturally Aspirated, VIN Y"

• 1976-1976: Sierra Classic; 8 Cyl 5.0L; "GAS, CARB, Naturally Aspirated, VIN Q"

• 1976-1976: Sierra Classic; 8 Cyl 6.6L; "GAS, CARB, Naturally Aspirated, VIN U"

• 1976-1976: Sierra Classic; 8 Cyl 7.4L; "GAS, CARB, Naturally Aspirated, VIN S"

• 1976-1976: Sierra Classic; 8 Cyl 7.4L; "GAS, CARB, Naturally Aspirated, VIN Y"

• 1976-1976: Sierra Grande; 8 Cyl 5.0L; "GAS, CARB, Naturally Aspirated, VIN Q"

• 1976-1976: Sierra Grande; 8 Cyl 6.6L; "GAS, CARB, Naturally Aspirated, VIN U"

• 1976-1976: Sierra Grande; 8 Cyl 7.4L; "GAS, CARB, Naturally Aspirated, VIN S"

• 1976-1976: Sierra Grande; 8 Cyl 7.4L; "GAS, CARB, Naturally Aspirated, VIN Y"

• 1975-1976: Base; 6 Cyl 4.8L; "GAS, CARB, Naturally Aspirated, VIN T"

• 1975-1976: Base; 8 Cyl 5.7L; "GAS, CARB, Naturally Aspirated, VIN V"

• 1975-1976: High Sierra; 6 Cyl 4.8L; "GAS, CARB, Naturally Aspirated, VIN T"

• 1975-1976: High Sierra; 8 Cyl 5.7L; "GAS, CARB, Naturally Aspirated, VIN V"

• 1975-1976: Sierra Classic; 6 Cyl 4.8L; "GAS, CARB, Naturally Aspirated, VIN T"

• 1975-1976: Sierra Classic; 8 Cyl 5.7L; "GAS, CARB, Naturally Aspirated, VIN V"

• 1975-1976: Sierra Grande; 6 Cyl 4.8L; "GAS, CARB, Naturally Aspirated, VIN T"

• 1975-1976: Sierra Grande; 8 Cyl 5.7L; "GAS, CARB, Naturally Aspirated, VIN V"

• 1975-1975: Base; 6 Cyl 4.1L; "GAS, CARB, Naturally Aspirated, VIN Q"

• 1975-1975: Base; 8 Cyl 5.7L; "GAS, CARB, Naturally Aspirated, VIN Y"

• 1975-1975: Base; 8 Cyl 6.6L; "GAS, CARB, Naturally Aspirated, VIN M"

• 1975-1975: High Sierra; 6 Cyl 4.1L; "GAS, CARB, Naturally Aspirated, VIN Q"

• 1975-1975: High Sierra; 8 Cyl 5.7L; "GAS, CARB, Naturally Aspirated, VIN Y"

• 1975-1975: High Sierra; 8 Cyl 6.6L; "GAS, CARB, Naturally Aspirated, VIN M"

• 1975-1975: Sierra Classic; 6 Cyl 4.1L; "GAS, CARB, Naturally Aspirated, VIN Q"

• 1975-1975: Sierra Classic; 8 Cyl 5.7L; "GAS, CARB, Naturally Aspirated, VIN Y"

• 1975-1975: Sierra Classic; 8 Cyl 6.6L; "GAS, CARB, Naturally Aspirated, VIN M"

• 1975-1975: Sierra Grande; 6 Cyl 4.1L; "GAS, CARB, Naturally Aspirated, VIN Q"

• 1975-1975: Sierra Grande; 8 Cyl 5.7L; "GAS, CARB, Naturally Aspirated, VIN Y"

• 1975-1975: Sierra Grande; 8 Cyl 6.6L; "GAS, CARB, Naturally Aspirated, VIN M"

Fits 50 more submodels. (Show all) Show less info