(7) The factory thermostat was easy to remove. (8) The Heavy-Duty Gates thermostat (right) will ensure accurate heat control under extreme variations in temperature, load and engine vibration. (9) The Gates thermostat came with a round gasket. It’s preferable to use the larger flat design that is interchangeable. (10) A small screwdriver is used to push the little nubs in to hold the gasket in place. (11) The new pump was ready for hoses, sensors and the drive belt. (12) Gates tensioners (left) ensure proper performance on serpentine belt drives and reduce noise and vibration.