Motorad 1017-189 Engine Coolant Thermostat Housing Assembly

Overview of Motorad Integrated Housing Thermostat 1017-189

The Motorad Integrated Housing Thermostat 1017-189 is designed specifically for Toyota Tacoma models, providing reliable engine temperature regulation. This engine coolant thermostat housing assembly features a built-in thermostat and is engineered to maintain optimal engine performance at a precise opening temperature of 189°F.

• Compatible with Toyota Tacoma vehicles
• Integrated thermostat housing assembly with bleeder hole
• Opening temperature set at 189 degrees Fahrenheit
• Constructed from plastic, stainless steel, and copper materials
• Includes a rubber gasket/seal and jiggle pin for proper function
• Three bolt holes for secure mounting
• Three outlet ports with varying diameters (0.67 in, 0.31 in, 1.36 in)

Details on the Integrated Housing Thermostat Product Line

The Motorad Integrated Housing Thermostat product line combines the thermostat and housing into a single assembly, simplifying installation and improving reliability. This design reduces potential leak points by integrating the thermostat directly within the housing, which is constructed from durable plastic, stainless steel, and copper components. The 1017-189 part number represents a precise fit for Toyota Tacoma models, ensuring consistent engine temperature control and efficient coolant flow.

Product Features and Specifications

This thermostat housing assembly includes a bleeder hole to allow trapped air to escape, improving coolant circulation and preventing overheating. The jiggle pin is incorporated to facilitate air bleeding during the cooling system operation. The assembly uses a rubber gasket to create a secure seal between the housing and engine block, minimizing the risk of coolant leaks. The three outlet ports accommodate different coolant flow paths, with outlet diameters of 0.67 inches, 0.31 inches, and 1.36 inches respectively. The unit is designed to start opening at 189°F, maintaining engine temperature within optimal operating ranges.

Common Applications and Problem Resolution

• Replacement for faulty or leaking thermostat housing assemblies on Toyota Tacoma
• Resolves engine overheating caused by thermostat failure
• Prevents coolant leaks due to worn or damaged seals
• Improves coolant flow and temperature regulation in the engine
• Addresses air trapped in the cooling system with built-in bleeder hole and jiggle pin

Installation Notes and Tips

Ensure the engine is cool before beginning installation to avoid injury. Remove the old thermostat housing assembly carefully, noting the position of all outlet ports and bolt holes. Clean the mounting surface thoroughly to ensure a proper seal with the included rubber gasket. Align the three bolt holes correctly and torque bolts to manufacturer specifications (bolts not included). The bleeder hole and jiggle pin should be positioned to allow air to escape during coolant refilling. Verify proper coolant levels and check for leaks after installation.

Quality Assurance and Warranty

The Motorad Integrated Housing Thermostat 1017-189 is manufactured to meet OEM standards for fit and function on Toyota Tacoma vehicles. The use of durable materials such as stainless steel, copper, and high-quality plastic ensures long service life. The included rubber gasket provides a reliable seal to prevent coolant leaks. Warranty information is available from the manufacturer and should be confirmed at the time of purchase.