Motorad 5284KT Engine Coolant Thermostat Housing Assembly

Engine Coolant Thermostat Housing Assembly

Motorad 5284KT is an engine coolant thermostat housing assembly built for OE-specified cooling performance. It is designed with OEM-quality materials and processes, including a copper thermostat case and wax compound for quick reaction to coolant temperature changes.

This Kit line from Motorad focuses on OE-style replacement parts for cooling system service, with the housing, thermostat, and seal included where applicable. For drivers servicing a Cadillac DeVille thermostat housing assembly or a Buick Lucerne coolant thermostat housing replacement, Motorad 5284KT provides a direct-fit repair solution for the listed applications.

Key Features

• Engine coolant thermostat housing assembly for cooling system repair
• OE-specified 180F temperature rating on listed applications
• Copper case and wax compound for responsive temperature control
• Offset design with air relief valve
• OEM-style seals included where applicable
• Black and silver steel, stainless steel, copper, and rubber construction
• 2 bolt hole design
• Motorad part number 5284KT

Detailed Description

Motorad 5284KT is engineered as an OE supplier-style replacement for a range of GM vehicles, including Cadillac DTS, Cadillac Seville, Oldsmobile Aurora, Pontiac Bonneville, and related applications. The thermostat housing assembly is built to match OEM specifications and processes, helping maintain proper coolant flow and temperature regulation in demanding engine cooling systems. This part cross-references 95284KT and NI for the same application.

The Motorad Kit product line is aimed at complete cooling-system service where the thermostat housing assembly is serviced as a unit. On the listed vehicles, the assembly supports OE-specified 180F operation and uses an offset design with an air relief valve to help promote stable coolant circulation after service.

Vehicle Fitment

• Fits 2006-2011 Buick Lucerne, N/A. Temperature 180F; includes housing, thermostat and seal; OE specified temperature; Kit.
• Fits 2006-2011 Cadillac DTS, N/A. Temperature 180F; includes housing, thermostat and seal; OE specified temperature; Kit.
• Fits 1994-2005 Cadillac DeVille, N/A. Temperature 180F; includes housing, thermostat and seal; OE specified temperature; Kit.
• Fits 2004-2005 Cadillac SRX, N/A. Temperature 180F; includes housing, thermostat and seal; OE specified temperature; Kit.
• Fits 2005 Cadillac STS, N/A. Temperature 180F; includes housing, thermostat and seal; OE specified temperature; Kit.
• Fits 2004-2005 Cadillac XLR, N/A. Temperature 180F; includes housing, thermostat and seal; OE specified temperature; Kit.
• Fits 2004-2005 Pontiac Bonneville, N/A. Temperature 180F; includes housing, thermostat and seal; OE specified temperature; Kit.
• Fits 1993-2004 Cadillac Seville, N/A. Temperature 180F; includes housing, thermostat and seal; OE specified temperature; Kit.
• Fits 2001-2003 Oldsmobile Aurora, N/A. Temperature 180F; includes housing, thermostat and seal; OE specified temperature; Kit.
• Fits 1995-1999 Oldsmobile Aurora, N/A. Temperature 180F; includes housing, thermostat and seal; OE specified temperature; Kit.
• Fits 1993-2002 Cadillac Eldorado, N/A. Temperature 180F; includes housing, thermostat and seal; OE specified temperature; Kit.
• Fits 1993 Cadillac Allante, N/A. Temperature 180F; includes housing, thermostat and seal; OE specified temperature; Kit.

What It Helps Address

• Coolant temperature control issues caused by a worn thermostat housing assembly
• Leaks at the thermostat housing or seal interface
• Delayed engine warm-up or unstable operating temperature
• Cooling system service needs on Cadillac, Buick, Pontiac, and Oldsmobile applications
• Replacement of an OE-style thermostat housing assembly during cooling system repair

Installation Notes and Tips

Verify engine application and OE temperature specification before installation. Inspect the mating surfaces, coolant passages, and adjacent hoses for wear or contamination, and clean the mounting area thoroughly before assembly. Because bolts are not included, reuse or source the correct fasteners for the vehicle as needed. Confirm the seal condition and follow the vehicle service procedure for coolant refill and air bleeding after installation.

Quality Assurance

Motorad manufactures this thermostat housing assembly with OEM-quality materials and OE-supplier processes to meet the demands of automotive cooling systems. The design incorporates an OE-style approach to temperature response and fitment for the listed applications.