Upgrade Stewart hi-flow water pumps on stock engines require this thermostat that has been modified by Stewart to accommodate the increased coolant flow rate. The 160?F setting keeps the engine at its optimum heat range for maximum power output.
Vehicle Fitment:
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
