Gates 33429S Engine Coolant Thermostat

Reliable Engine Cooling with Gates Premium Thermostat 33429S

The Gates Premium Thermostat 33429S is engineered to maintain optimal engine temperature for a range of vehicles including Buick, Chevrolet, GMC, and Pontiac models. 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
• Reverse poppet design for precise temperature regulation
• Start to open temperature at 195°F (91°C) for accurate engine cooling
• Sealing flange outside diameter of 1.72 inches for secure fit
• Height between flanges measures 0.82 inches for proper installation
• Compatible with multiple GM and other makes including Chevrolet Blazer, Pontiac Grand Prix, and Buick LeSabre

Product Features and Specifications

This Premium Thermostat from Gates features a reverse poppet design that allows for efficient coolant flow control, helping to prevent engine overheating or overcooling. The thermostat opens at 195°F (91°C), which is a standard operating temperature for many engines, ensuring the cooling system activates at the right time. Its stainless steel and copper construction provides resistance to corrosion and wear, extending the life of the thermostat. The sealing flange outside diameter of 1.72 inches and a height of 1.68 inches make it compatible with a variety of engine housings.

Compatible Vehicles and Applications

The Gates 33429S thermostat is compatible with a wide range of vehicles, including but not limited to Buick Century, Chevrolet Camaro, GMC Sierra C1500, Pontiac Firebird, and Suzuki Esteem. This part is suitable for models such as the Chevrolet S10 Blazer, Pontiac Grand Am, and Buick LeSabre, ensuring reliable engine temperature control across multiple platforms.

Common Issues Addressed by This Thermostat

• Engine overheating due to stuck closed thermostat
• Poor fuel efficiency caused by engine running too cold
• Inconsistent cabin heating performance
• Coolant leaks around the thermostat housing
• Engine temperature fluctuations affecting performance

Installation Notes and Tips

The Gates Premium Thermostat 33429S does not include an installation tool, so ensure you have the proper tools for removal and installation. Verify the sealing flange dimensions and height to confirm fitment with your vehicle’s thermostat housing. It is recommended to replace the thermostat gasket during installation, although this part does not include gaskets. Follow manufacturer torque specifications to avoid leaks or damage.

Quality Assurance and Warranty

Gates Premium Thermostats are manufactured to meet or exceed OEM standards, providing reliable engine temperature regulation. While specific warranty details for part number 33429S are not provided here, Gates products typically come with a limited warranty against defects in materials and workmanship. Consult the product packaging or manufacturer for exact warranty terms.

About the Gates Premium Thermostat Line

The Gates Premium Thermostat line is designed to offer enhanced durability and precise temperature control for a variety of vehicles. This product line focuses on quality materials such as stainless steel and copper, combined with advanced designs like the reverse poppet mechanism found in part 33429S. These thermostats are engineered to provide consistent engine cooling performance, supporting vehicle reliability and efficiency.