Gates 33943 Engine Coolant Thermostat

Reliable Engine Cooling with Gates OE Type Thermostat 33943

The Gates OE Type Thermostat 33943 is engineered to maintain optimal engine temperature for a range of vehicles including Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Saab, and Saturn models. Designed with durable steel and copper materials, this engine coolant thermostat ensures consistent performance and longevity.

• Constructed from steel and copper for durability and heat resistance
• Reverse poppet design for precise temperature regulation
• O-ring seal type for secure and leak-free installation
• Start to open temperature at 180°F (82°C) for accurate engine temperature control
• Compatible with multiple GM and Saab models such as Chevrolet Malibu, Buick LaCrosse, and Saab 9-3

About the Gates OE Type Thermostat Product Line

The OE Type Thermostat line by Gates is designed to meet original equipment performance standards, providing reliable engine temperature management. This product line focuses on delivering thermostats that match OEM specifications, ensuring proper fit and function without the need for additional gaskets or installation tools. The 33943 thermostat exemplifies this approach with its reverse poppet design and O-ring seal, offering dependable operation in various GM and Saab vehicles.

Product Details and Specifications

The Gates 33943 thermostat features a reverse poppet design that helps regulate coolant flow efficiently. It has a sealing flange outside diameter of 2.12 inches and a height between flanges of 1.15 inches, with an overall height of 1.91 inches. The thermostat includes one O-ring seal and does not require additional gaskets or jiggle pins. Its start to open temperature is precisely set at 180°F (82°C), ensuring the engine reaches optimal operating temperature before coolant circulation begins. This thermostat is compatible with models such as the Chevrolet Equinox, Pontiac Grand Am, Saturn Vue, and Saab 9-5, among others.

Common Applications and Issues Addressed

• Prevents engine overheating by regulating coolant flow
• Helps maintain consistent engine temperature for efficient performance
• Reduces risk of engine damage caused by thermostat failure
• Eliminates coolant leaks with O-ring seal design
• Restores proper engine warm-up time in vehicles like the Buick LaCrosse and Chevrolet Cobalt

Installation Notes and Tips

The Gates 33943 thermostat installs without the need for additional gaskets or jiggle pins, simplifying replacement. Although no installation tool is included, standard thermostat removal and installation tools compatible with GM and Saab vehicles can be used. Ensure the O-ring seal is properly seated to prevent leaks. Verify the start to open temperature matches vehicle specifications before installation.

Quality Assurance and Warranty

This thermostat meets OE performance standards, ensuring reliable operation and fitment. Manufactured with high-quality steel and copper materials, it is designed for durability under typical engine operating conditions. While specific warranty details are not provided, Gates products generally adhere to strict quality control processes to maintain consistent performance.