Motorad 5559KT Engine Coolant Thermostat Housing Assembly

Motorad 5559KT Thermostat Housing Kit

The Motorad 5559KT is an engine coolant thermostat housing assembly kit built for OE-style cooling system service. It uses OEM-quality materials and manufacturing processes to support stable coolant temperature control in Toyota applications, including 4Runner, Pickup, and T100 models.

Motorad Kit products focus on direct-fit cooling system service parts with OE-specification construction. This thermostat housing assembly kit includes the housing, thermostat, and seal for the listed Toyota applications, with an offset design and air relief valve where applicable.

Key Features

• Engine coolant thermostat housing assembly for OE-style cooling system repair
• Fits 1990-1995 Toyota 4Runner, N/A
• Fits 1990-1994 Toyota Pickup, N/A
• Fits 1993-1994 Toyota T100, N/A
• OE specified 180F temperature rating for listed applications
• Plastic, stainless steel, copper, and rubber construction
• Black and silver finish
• 3 bolt hole design
• Offset design with air relief valve where applicable
• Motorad 5559KT part number for direct identification

Detailed Description

The Motorad 5559KT thermostat housing assembly is manufactured to OE specifications for Toyota cooling systems that require a 180F thermostat setting. Its copper case and wax compound support quick reaction to coolant temperature changes, helping maintain proper engine operating temperature in 1990-1995 Toyota 4Runner, 1990-1994 Toyota Pickup, and 1993-1994 Toyota T100 models. The Motorad 5559KT is built with OEM-quality materials and safety standards by an OE supplier, making it a practical replacement for worn or damaged thermostat housing components.

This part cross-references 95559KT and NI for the same application.

Common Repair Uses

• Replacing a cracked or warped thermostat housing
• Restoring proper coolant temperature regulation
• Addressing coolant leaks at the housing or seal surface
• Correcting overheating caused by thermostat housing wear
• Servicing Toyota 4Runner, Pickup, or T100 cooling system components

Installation Notes and Tips

Verify engine application and OE specified temperature before installation. Clean the mating surfaces thoroughly and inspect the cooling system for contamination, corrosion, or damaged hoses before reassembly. The housing uses a 3-bolt pattern and does not include bolts or a gasket/seal beyond what is specified for the kit contents in the fitment notes.

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 OE-style sealing features where applicable and is built to support consistent temperature control in the listed Toyota applications.