Gates 34702 Engine Coolant Thermostat

Overview of Gates Integrated Housing Thermostat 34702

The Gates Integrated Housing Thermostat 34702 is engineered to regulate engine temperature efficiently in a variety of GM vehicles. Designed with precision, this engine coolant thermostat ensures optimal engine performance and temperature control for models like the Chevrolet Silverado and Cadillac Escalade.

• Integrated housing thermostat design for streamlined installation
• Start to open temperature at 187°F (86°C) for accurate temperature regulation
• Outlet outside diameter of 1.63 inches and inside diameter of 1.22 inches
• Equipped with a jiggle pin weep hole to prevent air lock
• Two bolt holes for secure mounting
• Non-electric, mechanical operation for reliable performance
• OE performance rating, engineered to meet original equipment standards

Detailed Product Description

The Gates Integrated Housing Thermostat 34702 combines the thermostat and housing into a single unit, simplifying replacement and reducing potential leak points. This part features a jiggle pin weep hole that allows trapped air to escape, preventing overheating and ensuring consistent coolant flow. With a start to open temperature of 187°F (86°C), it maintains the engine within the optimal operating range. The thermostat housing includes two bolt holes for secure attachment and an outlet with an outside diameter of 1.63 inches and an inside diameter of 1.22 inches, designed to fit specific coolant passages precisely.

This thermostat is non-electric, relying on mechanical operation to open and close based on coolant temperature. It does not include a check valve but incorporates one jiggle pin to aid in system bleeding. The part is rated for OE performance, ensuring compatibility and durability comparable to original equipment.

About the Integrated Housing Thermostat Product Line

The Gates Integrated Housing Thermostat line integrates the thermostat and housing into a single assembly, reducing installation complexity and potential leak points. This design is particularly beneficial for vehicles requiring precise coolant flow management and reliable temperature control. The 34702 model is part of this line, offering a direct replacement solution for various GM makes and models.

Compatible Vehicles and Common Applications

• Buick Allure, LaCrosse, and Rainier
• Cadillac Escalade, Escalade ESV, Escalade EXT, and CTS
• Chevrolet Silverado 1500, 2500, 3500, Suburban, Tahoe, Camaro, Corvette, and Impala
• GMC Sierra 1500, 2500, 3500, Yukon, Yukon XL, and Envoy
• Hummer H2 and Isuzu Ascender
• Pontiac G8, Grand Prix, and Firebird
• Saab 9-7x

Common Issues Addressed by This Thermostat

• Engine overheating due to thermostat failure
• Coolant leaks from worn or damaged thermostat housing
• Poor engine temperature regulation causing inefficient performance
• Air trapped in the cooling system leading to hot spots
• Inconsistent coolant flow affecting engine warm-up times

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid burns
• Drain coolant to a level below the thermostat housing before removal
• Clean mating surfaces thoroughly to prevent leaks
• Use the two bolt holes to securely fasten the thermostat housing
• Check for proper seating of the jiggle pin to allow air bleeding
• Refill coolant and bleed the system to remove trapped air after installation

Quality Assurance and Warranty

The Gates Integrated Housing Thermostat 34702 is manufactured to meet or exceed OE performance standards, ensuring reliable operation and durability. While specific warranty details may vary, Gates products typically come with a limited warranty covering defects in materials and workmanship. This thermostat is designed to provide consistent engine temperature control and long service life when installed according to manufacturer guidelines.