Gates 33238S Engine Coolant Thermostat

Reliable Engine Cooling with Gates Premium Thermostat 33238S

The Gates Premium Thermostat 33238S is engineered to maintain optimal engine temperature for a range of Ford, Jaguar, Lincoln, Mazda, and Mercury vehicles. Designed with durable materials and precise temperature control, this thermostat supports efficient engine performance and longevity.

• Constructed from stainless steel, brass, and copper for durability and corrosion resistance
• Bottom by-pass design with a jiggle pin weep hole for effective coolant flow
• Start to open temperature at 180°F (82°C) for accurate thermal regulation
• Sealing flange outside diameter of 2.13 inches and by-pass flange diameter of 1.35 inches
• Height between flanges is 1.6 inches, total height 2.33 inches, and height from flange 0.73 inches
• Includes one jiggle pin/check valve and no gaskets or seals included

About the Gates Premium Thermostat Product Line

The Premium Thermostat line by Gates focuses on delivering reliable engine temperature control through high-quality materials and precise engineering. This product line is designed to meet or exceed OEM specifications, ensuring compatibility and performance for various vehicle makes and models, including Ford, Jaguar, Lincoln, Mazda, and Mercury. The 33238S model exemplifies this commitment with its robust construction and accurate temperature response.

Detailed Product Description

The Gates Premium Thermostat 33238S features a bottom by-pass design that allows coolant to circulate efficiently even when the thermostat is closed, preventing hot spots and promoting consistent engine temperature. Its stainless steel, brass, and copper construction provides resistance to corrosion and wear, essential for long-term reliability. The thermostat opens at 180°F (82°C), a temperature calibrated to optimize engine warm-up and prevent overheating. The jiggle pin weep hole helps release trapped air, improving coolant flow and system efficiency. With precise flange dimensions and height specifications, this thermostat is engineered for a secure fit in compatible vehicles.

Compatible Vehicles and Common Applications

• Ford models including Explorer, Escape, Mustang, Taurus, and Fusion
• Jaguar S-Type and Lincoln LS, MKX, MKZ, MKS, MKT
• Mazda CX-9, MPV, Tribute
• Mercury Cougar, Milan, Mystique, Sable, Zephyr
• Other models such as Aviator, Contour, Courier, Edge, Fiesta, Five Hundred, Flex, Freestyle, Montego

Common Issues Addressed by This Thermostat

• Engine overheating due to thermostat failure
• Poor engine warm-up performance
• Coolant flow restriction causing hot spots
• Corrosion and wear in cooling system components
• Air trapped in the cooling system reducing efficiency

Installation Notes and Tips

The Gates 33238S thermostat does not include an installation tool, so ensure you have the appropriate tools for removal and installation. Verify the sealing flange and by-pass flange dimensions to confirm fitment. Inspect the housing and coolant passages for debris before installation. Since no gaskets or seals are included, use OEM or compatible gaskets to ensure a proper seal. The jiggle pin weep hole should be oriented correctly to allow air release during installation.

Quality Assurance and Warranty

Gates Premium Thermostats are manufactured to meet strict quality standards and OEM specifications. The 33238S model is built with corrosion-resistant materials to provide reliable service life. While specific warranty details are not provided here, Gates typically offers limited warranties on their cooling system components. Consult product documentation or the manufacturer for exact warranty terms.