Motorad 391-170 Engine Coolant Thermostat Housing Assembly

Overview of Motorad Integrated Housing Thermostat 391-170

The Motorad Integrated Housing Thermostat 391-170 is designed for reliable engine temperature regulation in select Infiniti, Nissan, and Suzuki vehicles. This thermostat housing assembly ensures proper coolant flow and engine protection by opening at 170 degrees Fahrenheit.

• Integrated thermostat housing assembly with bleeder hole for efficient air release
• Constructed from durable aluminum, stainless steel, and copper materials
• Includes a paper gasket for secure sealing
• Features a jiggle pin to aid in air bleeding
• Three bolt holes for secure mounting (bolts not included)
• Two outlet ports with diameters of 1.38 inches and 0.50 inches
• Silver color finish for corrosion resistance

Detailed Product Description

The Motorad Integrated Housing Thermostat 391-170 is engineered to maintain optimal engine temperature by opening at 170°F, allowing coolant to circulate through the engine and radiator. This assembly includes a thermostat integrated within the housing, simplifying installation and reducing potential leak points. The housing is made from a combination of aluminum, stainless steel, and copper, providing strength and corrosion resistance. A bleeder hole and jiggle pin are incorporated to facilitate the removal of trapped air, improving cooling system efficiency. The included paper gasket ensures a tight seal between the housing and engine block, although mounting bolts and hardware are not included.

Integrated Housing Thermostat Product Line

The Motorad Integrated Housing Thermostat line combines the thermostat and housing into a single assembly, streamlining replacement and improving reliability. This design reduces the number of components and potential failure points compared to separate thermostat and housing setups. The 391-170 model is part of this line, offering precise temperature control and compatibility with various Nissan, Infiniti, and Suzuki models.

Compatible Vehicles and Common Applications

• Infiniti models: FX35, G35, M35, QX4
• Nissan models: 350Z, Frontier, Pathfinder, Xterra, NV1500, NV2500, NV3500
• Suzuki model: Equator
• Addresses issues such as engine overheating, coolant leaks at the thermostat housing, and improper thermostat operation
• Helps prevent engine damage caused by faulty temperature regulation

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid burns
• Use the included paper gasket and verify proper alignment of the three bolt holes
• Bleeder hole and jiggle pin assist in removing air pockets during coolant refilling
• Mounting bolts are not included; reuse original hardware or source appropriate replacements
• Check for leaks after installation and during initial engine operation

Quality Assurance and Warranty

Motorad products are manufactured to meet or exceed OEM specifications, using quality materials such as aluminum, stainless steel, and copper for durability. The Integrated Housing Thermostat 391-170 includes a paper gasket for proper sealing. While specific warranty details are not provided, Motorad typically offers coverage against manufacturing defects. Proper installation and maintenance are recommended to ensure long-term performance.