Gates 33299 Engine Coolant Thermostat

OE Type Thermostat for Ford, Mercury, and Mazda

Gates OE Type Thermostat 33299 is built for precise engine coolant temperature control and an OEM-equivalent fit. It is a direct replacement choice for a wide range of Ford, Mercury, and Mazda applications, including Ford Ranger, Mustang, Taurus, Escort, and Mazda B2300 models.

Key Features

• OE Type Thermostat engineered for factory-style temperature regulation
• Start-to-open temperature: 192-195°F
• Reverse poppet design for OE-style coolant flow control
• Stainless steel and copper construction for durability
• O-ring seal design with one seal included
• No jiggle pin weep hole and no installation tool included
• OE Performance comparison rating

Product Details

Gates OE Type Thermostat 33299 is designed to match the original thermostat function found in many Ford, Mercury, and Mazda cooling systems. The reverse poppet design, O-ring seal, and OE-equivalent dimensions help deliver consistent coolant regulation and a leak-free fit. This thermostat is a practical replacement for drivers servicing older Ford Ranger and Ford Mustang cooling systems, as well as Mercury Capri, Cougar, and Topaz applications.

This part cross-references FEL-PRO 1638 for the same application.

Common Cooling System Issues It Can Address

• Engine running too cool or too warm due to thermostat wear
• Temperature fluctuations during normal driving
• Coolant leaks at the thermostat sealing surface
• Delayed warm-up after cold starts
• Cooling system service on high-mileage Ford, Mercury, or Mazda vehicles

Installation Notes and Tips

Verify the start-to-open temperature and housing style before installation. Clean the mating surfaces thoroughly and replace any damaged coolant seals or housing components as needed. This thermostat is listed with no gasket quantity and an O-ring seal design, so confirm the correct sealing arrangement for the application before assembly.

Compatible With 1996-1997 Ford F-100 Ranger, N/A; 1983-1997 Ford Ranger, N/A; 1994-1997 Mazda B2300, N/A; 1981-1996 Ford Escort, N/A; 1991-1996 Mercury Tracer, N/A; 1984-1994 Ford Tempo, N/A; 1984-1994 Mercury Topaz, N/A; 1979-1993 Ford Mustang, N/A; 1986-1991 Ford Taurus, N/A; 1983-1988 Ford Thunderbird, N/A; 1986-1987 Ford Aerostar, N/A; 1981-1987 Mercury Lynx, N/A; 1983-1986 Ford LTD, N/A; 1979-1986 Mercury Capri, N/A; 1984-1986 Mercury Cougar, N/A; 1981-1982 Mercury Cougar, N/A; 1983-1986 Mercury Marquis, N/A; 1986 Mercury Sable, N/A; 1985 Ford Bronco II, N/A; 1979-1983 Ford Fairmont, N/A; 1982-1983 Mercury LN7, N/A; 1978-1983 Mercury Zephyr, N/A; 1979-1980 Ford Pinto, N/A; 1978-1980 Mercury Bobcat, N/A.

Quality Assurance

Gates OE Type Thermostats are engineered to provide precise temperature control and OEM-equivalent fit. Part number 33299 is built to support dependable cooling system service across Ford Ranger, Ford Mustang, and Mazda B2300 applications.