Motorad 5155KT Engine Coolant Thermostat Housing Assembly

Engine Coolant Thermostat Housing Assembly for Lexus V8 Cooling Systems

Motorad 5155KT is an engine coolant thermostat housing assembly built for OE-style cooling system service. It is specified for select Lexus LS400 and SC400 applications with a 180F thermostat setting, making it a direct-fit choice for maintaining stable coolant temperature in demanding driving conditions.

Motorad Kit line products are packaged as application-specific cooling system solutions, combining the housing, thermostat, and seal where listed in the fitment notes. This approach supports accurate replacement for Lexus LS400 and Lexus SC400 thermostat housing service without requiring separate part matching.

Key Features

• Engine coolant thermostat housing assembly for OE-style cooling system repair
• 180F thermostat specification for listed Lexus applications
• Offset housing design for application-specific fitment
• Air relief valve included in the design
• Constructed with plastic, stainless steel, copper, and rubber materials
• Copper case and wax compound for responsive coolant temperature control
• Two bolt-hole housing design
• Black and silver finish

Detailed Description

Motorad 5155KT is engineered for 1990-1997 Lexus LS400 and 1992-1997 Lexus SC400 thermostat housing replacement service. The housing is manufactured to OE specifications using OEM-quality materials and processes, with a copper case and wax compound that react quickly to coolant temperature changes. The offset design, air relief valve, and OEM-style sealing approach support proper cooling system function in the listed Lexus V8 applications. This part cross-references 95155KT for the same application.

What This Part Helps Address

• Coolant temperature fluctuations in the thermostat housing area
• Cracked or aged plastic housing replacement needs
• Thermostat service on Lexus LS400 cooling systems
• Thermostat service on Lexus SC400 cooling systems
• OE-spec cooling system restoration after housing wear or corrosion

Installation Notes and Tips

Fits 1990-1997 Lexus LS400, N/A. Fits 1992-1997 Lexus SC400, N/A. Confirm the 180F temperature specification and compare the housing layout to the original unit before installation. The fitment notes indicate the housing, thermostat, and seal are included for the listed applications, while gasket or seal and bolts are not separately listed as included attributes. Clean the mating surfaces thoroughly and inspect the cooling system for contamination before reassembly.

Quality Assurance

Motorad manufactures this thermostat housing assembly with OEM-quality materials and safety standards as an OE supplier, using OE specifications and processes for the listed applications.