The Motorcraft F4TZ-8575-CB is the genuine Ford engine coolant thermostat for 1994-1996 Ford F-250 and F-350 trucks with the 7.3L OBS Powerstroke.

A thermostat stuck open causes slow warm-up, poor heater output and low gauge readings, while one stuck closed leads to overheating. This Ford service part supersedes F4TZ-8575-A and F4TZ-8575-CA.

• Genuine Motorcraft: Ford OE service thermostat.
• Supersedes Older Numbers: Replaces F4TZ-8575-A and -CA.
• Correct Warm-Up: Brings the engine to temperature.
• Stable Temps: Regulates coolant flow to the radiator.
• Direct Fit: Installs in the factory housing.

Technical Specifications

• Part Number: F4TZ-8575-CB
• Manufacturer: Motorcraft (Ford)
• Replaces: F4TZ-8575-A, F4TZ-8575-CA
• Type: Engine coolant thermostat
• Warranty: 12 months / 12,000 miles (Ford)

Vehicle Fitment & Technical Installation Notes

• Fitment: 1994-1996 Ford F-250 and F-350 with the 7.3L Powerstroke.
• Installation Tip: Replace the thermostat seal at the same time, and burp the cooling system after refilling so no air pocket sits under the new thermostat.