Gates 34840 Engine Coolant Thermostat

Integrated Thermostat Housing for OE Temperature Control

Gates 34840 is an integrated housing thermostat built for precise engine coolant temperature regulation. It is specified at 192 degrees Fahrenheit (89 degrees Celsius) and is used on a wide range of Land Rover and Jaguar applications, including Range Rover, Range Rover Sport, Defender, F-Type, XF, XJ, XK, and related models.

As part of the Gates Integrated Housing Thermostat line, this assembly reflects the shift toward thermostat housings that combine temperature control into a single service component. Gates applies aftermarket thermostat development to provide an OE-style alternative for vehicles that use integrated housing designs.

Key Features

• Part number 34840
• Integrated Housing Thermostat design
• 192 degree Fahrenheit / 89 degree Celsius start-to-open temperature
• OE Performance comparison rating
• Non-electric thermostat design
• Single bolt hole configuration
• No jiggle pin weep hole, check valve, or seals listed
• Multiple outlet inside and outside diameter specifications for OE-style fitment

Product Details

This Gates engine coolant thermostat is engineered for vehicles that use an integrated thermostat housing, helping maintain the correct operating temperature for efficient engine performance. Accurate coolant temperature control is important on turbocharged and high-output Jaguar and Land Rover engines, where stable thermal management supports consistent drivability and cooling system operation. Gates 34840 is listed for applications such as 2010-2017 Land Rover Range Rover, 2019-2022 Land Rover Range Rover Sport, 2014-2020 Jaguar F-Type, and 2010-2016 Jaguar XF. This part cross-references Dorman OE Solutions 902-5169 for the same application.

What This Thermostat Helps Address

• Engine running too cool or too warm
• Temperature fluctuations during normal driving
• Cooling system performance issues tied to thermostat wear
• Check engine lights related to coolant temperature control
• Loss of OE-style thermal regulation in integrated housing systems

Installation Notes and Tips

Verify the thermostat housing style, outlet diameters, and OE temperature specification before installation. This part is listed as non-electric and uses a single bolt hole configuration, so matching the original housing design is important for proper fitment. Confirm vehicle application by year, make, and model before service on Land Rover Defender 110, Defender 90, Range Rover Velar, or Jaguar XJ platforms.

Quality Assurance

Gates positions this integrated thermostat housing as an OE-performance aftermarket solution developed for accurate temperature regulation and dependable cooling system control.