Motorad 427457 Engine Coolant Thermostat

Reliable Engine Coolant Thermostat for Nissan, Infiniti, and Suzuki

The Motorad Standard 427457 engine coolant thermostat is designed to maintain optimal engine temperature for select Nissan, Infiniti, and Suzuki vehicles. Engineered with precise temperature control and durable sealing components, this thermostat supports efficient engine performance and longevity.

• Start to open temperature at 205°F for accurate coolant flow regulation
• Includes a rubber and paper gasket and two O-ring seals for secure installation
• Features a jiggle pin weep hole to prevent air lock and ensure proper coolant circulation
• Sealing flange outside diameter of 2.05 inches and flange thickness of 0.05 inches for proper fitment
• Bypass diameter of 1.09 inches to maintain coolant flow during thermostat operation

Detailed Specifications and Features

This Motorad Standard engine coolant thermostat (part number 427457) is built to meet the exacting requirements of vehicles such as the Nissan Altima, Murano, Rogue, Rogue Select, Sentra, Infiniti QX60, and Suzuki Equator and X-Trail. The thermostat opens at 205 degrees Fahrenheit, allowing coolant to flow through the engine once the optimal operating temperature is reached. The included rubber and paper gasket, along with two O-ring seals, ensure a tight, leak-free fit within the thermostat housing. The jiggle pin weep hole helps release trapped air, preventing overheating and maintaining consistent engine temperature. With a sealing flange outside diameter of 2.05 inches and a flange thickness of 0.05 inches, this thermostat fits precisely in the designated housing.

About the Motorad Standard Product Line

The Motorad Standard line offers dependable replacement parts designed to meet OEM specifications for a wide range of vehicles. This Standard engine coolant thermostat provides a balance of quality and value, featuring essential sealing components and temperature control features necessary for maintaining engine cooling system integrity. The Standard line focuses on delivering reliable performance without additional installation tools, making it suitable for professional and experienced DIY mechanics.

Common Applications and Issues Addressed

• Prevents engine overheating by regulating coolant flow
• Eliminates coolant leaks with included gasket and O-ring seals
• Resolves air lock issues in the cooling system via jiggle pin weep hole
• Maintains proper engine operating temperature for fuel efficiency
• Replaces faulty or stuck thermostats in Nissan Altima, Infiniti QX60, and Suzuki X-Trail

Installation Notes and Tips

Installation of the Motorad Standard 427457 thermostat requires removal of the existing thermostat and housing. Ensure the sealing surfaces are clean and free of debris before installing the new gasket and thermostat. The included rubber and paper gasket and O-ring seals should be properly seated to prevent leaks. No special installation tools are included, so use appropriate hand tools and follow vehicle-specific service manual instructions for torque specifications and procedures.

Quality Assurance and Warranty

Motorad Standard thermostats are manufactured to meet industry standards for durability and performance. This part number 427457 undergoes quality checks to ensure proper temperature response and sealing integrity. While specific warranty details are not provided, Motorad products typically come with limited warranties covering defects in materials and workmanship.