Gates 33964 Engine Coolant Thermostat - Driver Side

Reliable Cooling with Gates Heavy-Duty Thermostat 33964

The Gates Heavy-Duty Thermostat 33964 is engineered to maintain optimal engine temperature for heavy-duty vehicles. Designed with durable steel and copper materials, this engine coolant thermostat ensures consistent performance under demanding conditions.

• Constructed from steel and copper for durability and heat resistance
• Bottom by-pass design for efficient coolant flow
• Sealing flange outside diameter of 2.12 inches
• Height between flanges measures 1.93 inches
• O-ring seal type for secure sealing without leaks
• Starts to open at 180°F (82°C) for precise temperature regulation
• Includes one seal and no gaskets or jiggle pins
• By-pass flange diameter of 1.11 inches and height from flange of 0.64 inches

About the Gates Heavy-Duty Thermostat Product Line

The Heavy-Duty Thermostat line by Gates focuses on robust cooling components designed for commercial and industrial vehicles. This product line emphasizes reliable temperature control and durability, making it suitable for engines that operate under high stress and temperature variations. The 33964 thermostat is part of this line, offering a bottom by-pass design that supports efficient coolant circulation and engine protection.

Detailed Product Description

The Gates Heavy-Duty Thermostat 33964 features a bottom by-pass design that allows coolant to circulate even when the thermostat is closed, preventing hot spots and promoting uniform engine temperature. Made from steel and copper, the thermostat withstands high temperatures and corrosion, extending service life. The O-ring seal ensures a tight fit within the housing, reducing the risk of leaks. With a start-to-open temperature of 180°F (82°C), this thermostat helps maintain optimal engine operating temperature, which is critical for heavy-duty trucks and commercial vehicles.

Common Applications and Issues Addressed

• Prevents engine overheating by regulating coolant flow
• Reduces engine warm-up time for improved efficiency
• Eliminates coolant leaks with a reliable O-ring seal
• Supports consistent engine temperature under heavy load conditions
• Helps avoid engine damage caused by thermal stress

Installation Notes and Tips

When installing the Gates Heavy-Duty Thermostat 33964, ensure the sealing flange and O-ring are properly seated to prevent leaks. This thermostat does not include an installation tool, so use appropriate tools to avoid damage during installation. Verify compatibility with your vehicle’s make and model before installation, as this part is designed for specific heavy-duty applications.

Quality Assurance and Warranty

Gates manufactures the Heavy-Duty Thermostat 33964 to meet stringent quality standards for durability and performance. While specific warranty details are not provided, Gates products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Always consult the product documentation or manufacturer for exact warranty terms.