Gates 34299 Engine Coolant Thermostat

Reliable Cooling Control with Gates Heavy-Duty Thermostat 34299

The Gates Heavy-Duty Thermostat 34299 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 with a jiggle pin weep hole for effective coolant flow
• O-ring seal type providing a secure, leak-resistant fit
• Start to open temperature at 190°F (88°C) for precise temperature regulation
• Sealing flange outside diameter of 2.12 inches and by-pass flange diameter of 1.34 inches
• Height between flanges measures 1.2 inches, total height 2.04 inches
• Includes one jiggle pin/check valve and one seal for reliable operation

About the Gates Heavy-Duty Thermostat Product Line

The Heavy-Duty Thermostat line by Gates is designed specifically for commercial and industrial vehicle applications requiring robust cooling system components. This product line focuses on durability and precise temperature control to support engine longevity and efficiency in heavy-duty trucks and equipment.

Product Details and Specifications

The Gates 34299 thermostat 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. The steel and copper construction offers resistance to corrosion and thermal stress, essential for heavy-duty engine environments. The O-ring seal ensures a tight fit within the housing, minimizing the risk of leaks. The thermostat opens at 190°F (88°C), a temperature suitable for many heavy-duty diesel and gasoline engines, helping maintain optimal operating conditions.

Common Applications and Problem Solving

• Prevents engine overheating by regulating coolant flow
• Reduces engine warm-up time for improved fuel efficiency
• Eliminates coolant leaks with a reliable O-ring seal
• Maintains consistent engine temperature under heavy load conditions
• Supports cooling system performance in commercial trucks and heavy equipment

Installation Notes and Tips

When installing the Gates Heavy-Duty Thermostat 34299, ensure the sealing surfaces 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 orientation of the bottom by-pass design and jiggle pin to ensure correct coolant flow. Always replace the thermostat gasket or seal as needed to prevent leaks.

Quality Assurance and Warranty

Gates manufactures the Heavy-Duty Thermostat 34299 to meet stringent quality standards for heavy-duty vehicle applications. The use of premium materials and precise engineering supports reliable operation and durability. While specific warranty details are not provided, Gates products typically come with manufacturer-backed quality assurance to support long-term performance.