GMC K15 Thermostats and Housings
This page gathers thermostats and housings for the GMC K15, covering model years 1975 through 1978. The range includes engine coolant thermostats, water outlets, and thermostat housings in OE-replacement and performance styles. Select your year above and we'll show only the thermostats and housings that fit your GMC K15. Fitment is checked against our vehicle data for every part listed.
Derale Performance 15719 Billet Fluid Control Thermostat Kit 1/2" NPT 180°F
Mishimoto MMTS-WRA-87L Racing Thermostat Low-Temp 180°F Jeep Wrangler 2.5L/4.0L/4.2L 1987-2006
Mishimoto MMTS-MUS-86A Street Thermostat for 1986-1995 Ford Mustang GT/Cobra
What's here for your GMC K15
- Engine Coolant Thermostats — including OE replacement and performance options
- Engine Coolant Water Outlets — available in styles such as polished and chrome finishes
- Engine Coolant Thermostat Housings — offered as individual pieces and as gasket kits
The widest selection here comes from Motorad, Trans Dapt Performance, Gates, and Dorman, covering a broad mix of OE-style replacements, chrome and polished dress-up pieces, and complete housing kits. Other categories GMC K15 owners shop for: GMC K15 Steering Wheels, GMC K15 Exhaust and Tail Pipes and GMC K15 Doors and Door Parts, or browse all GMC K15 parts and accessories.