Gates 34840 Engine Coolant Thermostat

Overview of Gates Integrated Housing Thermostat 34840

The Gates Integrated Housing Thermostat 34840 is engineered to regulate engine temperature efficiently in select Jaguar and Land Rover vehicles. Designed with precise outlet diameters and a reliable start-to-open temperature, this thermostat supports optimal engine cooling performance.

• Integrated housing thermostat design for streamlined installation
• Start to open temperature at 192°F (89°C) for accurate thermal regulation
• Multiple outlet outside diameters ranging from 0.9 to 1.78 inches
• Single bolt hole for secure mounting
• Non-electric, mechanical operation without jiggle pin or check valve

Detailed Product Description

This Gates Integrated Housing Thermostat (part number 34840) features a robust design tailored for engine coolant systems in Jaguar and Land Rover models, including the Defender 90, Defender 110, Defender 130, F-Type, LR4, Range Rover, Range Rover Sport, Range Rover Velar, XE, XF, XFR, XFR-S, XJ, XJR, XJR575, XK, XKR, and XKR-S. The thermostat begins to open at 192°F (89°C), ensuring the engine reaches optimal operating temperature before coolant flow increases. The integrated housing design simplifies the cooling system by combining the thermostat and housing into one unit, reducing potential leak points and installation complexity.

Outlet diameters vary to accommodate specific coolant flow requirements, with outside diameters measured at 0.9, 1.72, 1.73, and 1.78 inches, and inside diameters ranging from 0.62 to 1.38 inches. The single bolt hole design ensures a secure fitment without additional jiggle pins or check valves, which are not present in this model. This thermostat is purely mechanical and does not include electric components, aligning with the original equipment specifications for the compatible vehicles.

About the Integrated Housing Thermostat Product Line

The Gates Integrated Housing Thermostat line combines the thermostat and housing into a single assembly, designed to improve reliability and ease of replacement. This product line focuses on maintaining precise engine temperature control while minimizing installation time and potential coolant leaks. Part number 34840 exemplifies this approach by offering a direct replacement solution for Jaguar and Land Rover cooling systems requiring integrated housing thermostats.

Common Applications and Issues Addressed

• Regulates engine temperature to prevent overheating in Jaguar and Land Rover vehicles
• Replaces faulty or stuck thermostats causing poor engine performance
• Eliminates coolant leaks associated with separate thermostat housings
• Restores proper coolant flow in Defender and Range Rover models
• Ensures consistent engine warm-up for improved fuel efficiency and emissions

Installation Notes and Tips

When installing the Gates Integrated Housing Thermostat 34840, ensure the engine is cool before removal to avoid injury. Verify the single bolt hole alignment and outlet diameters match the vehicle’s specifications. Clean the mounting surface thoroughly to prevent leaks and use a compatible gasket or sealant as required by the vehicle manufacturer. Since this thermostat does not include a jiggle pin or check valve, confirm the cooling system is free of blockages and air pockets during installation.

Quality Assurance and Warranty

Gates thermostats meet or exceed original equipment performance standards, providing reliable temperature regulation for Jaguar and Land Rover engines. This part is rated for OE performance but is not an exact OE replacement. While specific warranty details are not provided here, Gates products typically come with manufacturer-backed quality assurance to support durability and function.