Gates 34308 Engine Coolant Thermostat

Reliable Cooling with Gates Heavy-Duty Thermostat 34308

The Gates Heavy-Duty Thermostat 34308 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 2.85 inches
• Height between flanges measures 1.15 inches
• O-ring seal type for reliable sealing without gaskets
• Starts to open at 180°F (82°C) to regulate engine temperature
• Height from flange is 1.17 inches with a by-pass flange diameter of 1.34 inches
• No jiggle pin or check valves included

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 durability and precise temperature control, making it suitable for engines that operate under high stress and temperature variations. The 34308 thermostat is part of this line, offering a bottom by-pass design that supports efficient coolant circulation and engine protection.

Product Details and Specifications

The Gates 34308 thermostat features a bottom by-pass design that allows coolant to circulate even when the thermostat is closed, helping to prevent hot spots and improve engine warm-up times. Its steel and copper construction provides resistance to corrosion and thermal fatigue, essential for heavy-duty applications. The O-ring seal ensures a tight fit without the need for additional gaskets, simplifying installation and reducing leak risks. With a start-to-open temperature of 180°F (82°C), this thermostat helps maintain the engine within its optimal operating temperature range.

Common Applications and Problem Solving

• Prevents engine overheating by regulating coolant flow
• Reduces engine warm-up time for improved efficiency
• Helps avoid coolant leaks with a reliable O-ring seal
• Supports consistent engine temperature in heavy-duty trucks and commercial vehicles
• Mitigates risk of engine damage due to thermal stress

Installation Notes and Tips

When installing the Gates Heavy-Duty Thermostat 34308, ensure the sealing flange and O-ring are clean and free of debris to maintain a proper seal. This thermostat does not include an installation tool, so use appropriate tools to avoid damage during installation. Verify the bottom by-pass orientation matches the vehicle’s cooling system requirements. Always consult the vehicle’s service manual for specific installation procedures and torque specifications.

Quality Assurance and Warranty

Gates manufactures the Heavy-Duty Thermostat 34308 to meet stringent quality standards for heavy-duty engine cooling components. The use of steel and copper materials ensures long-lasting durability and resistance to corrosion. While specific warranty details are not provided here, Gates products typically come with manufacturer-backed warranties covering defects in materials and workmanship. For exact warranty information, refer to Gates’ official documentation or contact authorized distributors.