Gates 34859 Engine Coolant Thermostat

Overview of Gates Integrated Housing Thermostat 34859

The Gates Integrated Housing Thermostat 34859 is engineered to regulate engine temperature efficiently for select Volvo models. Designed with precision, this engine coolant thermostat ensures optimal engine performance and temperature control.

• Integrated housing thermostat design with jiggle pin weep hole
• Start to open temperature at 194°F (90°C) for accurate thermal regulation
• Three bolt holes for secure mounting
• Multiple outlet inside diameters: 0.8", 0.81", and 1.09"
• Multiple outlet outside diameters: 0.91", 0.97", and 1.26"
• Non-electric thermostat with one seal included
• OE performance rating (not an exact OE replacement)

Detailed Product Description

The Gates Integrated Housing Thermostat 34859 is part of the Integrated Housing Thermostat product line, which combines the thermostat and housing into a single unit for streamlined installation and improved reliability. This design includes a jiggle pin weep hole to allow air to escape, preventing air locks and ensuring consistent coolant flow. The thermostat starts to open at 194°F (90°C), maintaining optimal engine temperature for efficient operation.

With three bolt holes, the thermostat housing mounts securely to the engine. The multiple outlet inside and outside diameters accommodate specific coolant hose connections, ensuring compatibility with various Volvo models. This thermostat is non-electric and includes one seal to maintain a tight coolant system seal. While it offers OE performance, it is not an exact OE replacement, making it suitable for maintenance and repair applications.

Compatible Volvo Models and Applications

This thermostat is compatible with a range of Volvo vehicles, including the C30, C70, S40, S60, V40 Cross Country, V50, V60, V60 Cross Country, XC60, and XC70. It is designed to meet the cooling system requirements of these models, providing reliable temperature regulation and helping to prevent engine overheating or inefficient cooling.

• Prevents engine overheating by regulating coolant flow
• Eliminates air locks with jiggle pin weep hole
• Maintains consistent engine operating temperature
• Replaces faulty or worn thermostats in compatible Volvo models
• Supports efficient engine warm-up and fuel economy

Installation Notes and Tips

When installing the Gates Integrated Housing Thermostat 34859, ensure the engine is cool before beginning work. Verify the correct orientation of the thermostat and jiggle pin to allow proper coolant flow and air venting. Use the three bolt holes to secure the housing firmly, and replace the seal to prevent leaks. Double-check outlet diameters to confirm compatibility with your vehicle’s coolant hoses.

Quality Assurance and Warranty

Gates thermostats are manufactured to meet OE performance standards, ensuring reliable operation and durability. The Integrated Housing Thermostat 34859 undergoes rigorous quality control to maintain consistent temperature regulation and fitment. While this product is not an exact OE replacement, it is engineered to provide dependable service in Volvo cooling systems. Warranty details are available from the manufacturer or authorized distributors.