Motorad TA4200 Engine Coolant Thermostat Housing Assembly

Thermostat Housing Assembly for Land Rover Cooling Systems

The Motorad TA4200 is an engine coolant thermostat housing assembly built for demanding cooling-system service. It is a standard replacement part with an OE-supplier manufacturing approach, using OEM-quality materials and processes for consistent temperature control.

Compatible with Land Rover Defender 90, Defender 110, Defender 130, Discovery, Range Rover, Range Rover Sport, and Range Rover Velar applications, this thermostat housing assembly is engineered around rapid coolant temperature response and a sealed fit.

Key Features

• Standard replacement thermostat housing assembly for cooling-system service
• OE-supplier manufacturing with OEM-quality materials and processes
• Copper case and wax compound for quick response to coolant temperature changes
• Plastic, metal, and rubber construction with a black finish
• Pre-installed gasket and seal, plus O-ring gasket type
• Mechanical actuator with disk valve design and bleeder hole
• Motorad TA4200 part number for direct identification

Detailed Description

The Motorad TA4200 thermostat housing assembly is designed for Land Rover cooling systems that require stable temperature regulation and reliable sealing. It uses OEM-spec manufacturing methods and materials, along with a copper case and wax compound that react quickly to coolant temperature changes. The assembly includes a pre-installed gasket and seal, and its mechanical disk valve design supports controlled coolant flow. This part number, TA4200, is listed for Land Rover Defender 90, Defender 110, Defender 130, Discovery, Range Rover, Range Rover Sport, and Range Rover Velar applications.

This part cross-references Monroe Shocks & Struts (e.g., 0024AT, LR1 80316) for the same application.

What It Helps Address

• Coolant temperature that stays too high or fluctuates
• Thermostat housing leaks at the seal or gasket interface
• Delayed thermostat response during warm-up
• Cooling-system service needs on Land Rover Defender and Range Rover platforms
• Fitment-specific replacement needs for TA4200 applications

Installation Notes and Tips

Verify the housing style, port layout, and connector details against the removed part before installation. The assembly uses a pre-installed gasket and seal, and the product data notes that mounting hardware is not included. Confirm the cooling system is properly bled after installation, especially on applications with a bleeder hole.

Quality Assurance

Manufactured by an OE supplier to OEM quality materials, safety standards, specifications, and processes. The TA4200 is built for demanding automotive cooling systems and is identified by Motorad part number TA4200.