2015 Peterbilt 337 Thermostats & Components
- Gates®Heavy Duty Engine Coolant ThermostatPeterbilt 337 8.9L 2015, Heavy Duty Engine Coolant Thermostat by Gates®. With Seal. Depth from Flange: 1.15". Height from Flange: 1.17". Temperature: 180F. If you want to keep your vehicle safe on the road for many years to come, go...Great design and functionMade from sturdy materials$28.35