Gates 33983S Engine Coolant Thermostat

Reliable Engine Cooling with Gates Premium Thermostat 33983S

The Gates Premium Thermostat 33983S is engineered to maintain optimal engine temperature for a range of vehicles including Toyota Camry, Lexus RX350, and Chevrolet Avalanche. Designed with durable stainless steel and copper materials, this engine coolant thermostat ensures consistent performance and longevity.

• Constructed from stainless steel and copper for durability
• Bottom by-pass design with a jiggle pin weep hole for efficient coolant flow
• Start to open temperature at 180°F (82°C) for precise engine temperature regulation
• Sealing flange outside diameter of 2.21 inches and height between flanges of 1.74 inches
• Compatible with multiple makes and models including Toyota, Lexus, Chevrolet, Pontiac, Scion

Detailed Features of the Gates Premium Thermostat 33983S

This Premium Thermostat from Gates features a bottom by-pass design that allows coolant to circulate even when the thermostat is closed, preventing hot spots and promoting even engine temperature. The inclusion of a jiggle pin weep hole helps release trapped air, improving cooling system efficiency. With a start to open temperature of 180°F (82°C), it ensures the engine warms up quickly and maintains the correct operating temperature. The thermostat’s stainless steel and copper construction provides corrosion resistance and durability under high-temperature conditions. Its dimensions, including a sealing flange outside diameter of 2.21 inches and a height of 2.75 inches, are designed to fit precisely in the cooling system housing.

About the Gates Premium Thermostat Product Line

The Gates Premium Thermostat line focuses on delivering reliable engine temperature control with high-quality materials and precise engineering. This product line is designed to meet or exceed OEM specifications, providing consistent performance across a wide range of vehicle applications. The 33983S model exemplifies this approach with its robust construction and functional design features tailored for effective coolant management.

Compatible Vehicles and Common Applications

• Engine overheating prevention in Toyota Camry, Corolla, and Tacoma
• Maintaining optimal engine temperature in Lexus RX330, RX350, and ES300
• Cooling system regulation for Chevrolet Avalanche and Pontiac Vibe
• Ensuring efficient coolant flow in Scion tC and xB models
• Supporting engine performance in Toyota Highlander and Sienna

Installation Notes and Tips

The Gates 33983S thermostat does not include an installation tool, so using the appropriate tools for your vehicle model is recommended. Ensure the cooling system is fully drained before removal of the old thermostat. Verify the orientation of the bottom by-pass design during installation to maintain proper coolant flow. Inspect the housing and gasket surfaces for cleanliness and damage before fitting the new thermostat. Although this thermostat does not include gaskets, use OEM or compatible gaskets to ensure a proper seal.

Quality Assurance and Warranty Information

Gates Premium Thermostats are manufactured to meet strict quality standards, using corrosion-resistant materials such as stainless steel and copper. The 33983S model undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details are not provided here, Gates typically offers coverage against manufacturing defects. Refer to the product packaging or official Gates documentation for exact warranty terms.