MotoRad Coolant Thermostat for 1975-1978 GMC K25 4.1L 4.8L 5.0L 5.7L 6.6L an
$21.11
This MotoRad Engine Coolant Thermostat fits your 1978 1977 1976 1975 GMC K25 4.1L 4.8L 5.0L 5.7L 6.6L 7.4L L6 V8 and is perfect for a tune up or performance upgrade. .
