Motorad 391-180 Engine Coolant Thermostat Housing Assembly - Upper

Overview of Motorad Integrated Housing Thermostat 391-180

The Motorad Integrated Housing Thermostat 391-180 is engineered for reliable engine temperature regulation in select Nissan, Infiniti, and Suzuki vehicles. Designed to maintain optimal coolant flow, this thermostat housing assembly supports efficient engine performance and helps prevent overheating.

• Integrated Housing Thermostat design for streamlined installation
• Opening temperature set at 180°F for precise coolant control
• Constructed from durable aluminum, stainless steel, and copper materials
• Includes a bleeder hole and jiggle pin for effective air removal
• Comes with a paper gasket for secure sealing
• Two outlet ports with diameters of 1.38 inches and 0.50 inches
• Compatible with Nissan Frontier, Pathfinder, Xterra, Infiniti M35, and Suzuki Equator among others

Detailed Product Description

This Motorad Integrated Housing Thermostat 391-180 is a complete engine coolant thermostat housing assembly designed to regulate engine temperature by controlling coolant flow. The thermostat opens at 180 degrees Fahrenheit, ensuring the engine reaches and maintains the correct operating temperature. Its construction from aluminum, stainless steel, and copper provides corrosion resistance and durability under high-temperature conditions. The assembly features a bleeder hole and jiggle pin to facilitate air removal from the cooling system, reducing the risk of air pockets that can cause overheating. The included paper gasket ensures a tight seal between the housing and engine block, preventing coolant leaks. With two outlet ports sized at 1.38 inches and 0.50 inches, this thermostat housing fits specific coolant routing requirements in compatible vehicles.

Integrated Housing Thermostat Product Line

The Motorad Integrated Housing Thermostat product line focuses on combining the thermostat and housing into a single assembly. This integration simplifies installation and replacement by reducing the number of separate components needed. The design enhances reliability by minimizing potential leak points and improving coolant flow management. The 391-180 model exemplifies this approach, offering a robust solution for maintaining engine temperature in Nissan, Infiniti, and Suzuki vehicles.

Applications and Common Issues Addressed

• Prevents engine overheating by regulating coolant flow
• Eliminates air pockets in the cooling system with bleeder hole and jiggle pin
• Replaces worn or damaged thermostat housings to stop coolant leaks
• Maintains proper engine operating temperature for fuel efficiency and emissions control
• Addresses thermostat failure symptoms such as engine temperature fluctuations or heater malfunctions

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid burns
• Use the included paper gasket and verify proper seating to prevent leaks
• Bleed the cooling system after installation to remove trapped air via the bleeder hole
• Torque bolts to manufacturer specifications (bolts not included)
• Inspect coolant hoses and replace if necessary during installation

Quality Assurance and Warranty

Motorad manufactures the Integrated Housing Thermostat 391-180 to meet OEM standards for fit and function. The use of high-quality materials such as aluminum, stainless steel, and copper ensures durability and corrosion resistance. This part includes a paper gasket for proper sealing but does not come with mounting hardware or installation tools. Warranty coverage details should be confirmed with the distributor or retailer at the time of purchase.