Motorad 5302-170 Engine Coolant Thermostat

Reliable Engine Coolant Thermostat for Acura, Toyota, Nissan, and More

The Motorad UltraStat 5302-170 engine coolant thermostat is designed to maintain optimal engine temperature for a wide range of vehicles including Acura Accord, Toyota 4Runner, Nissan Pathfinder, and others. Engineered to open at 170 degrees Fahrenheit, this thermostat helps regulate coolant flow efficiently to prevent overheating and ensure consistent engine performance.

Key Features of Motorad UltraStat 5302-170 Thermostat

• Temperature rating: 170°F for precise engine temperature control
• Sealing flange outside diameter: 2.51 inches for secure fitment
• Bypass diameter: 1.18 inches and bypass length: 1.66 inches to maintain coolant circulation
• Includes jiggle pin weep hole to prevent air lock and improve coolant flow
• Flange thickness: 0.05 inches for durability and proper sealing
• Compatible with multiple makes and models including Honda Accord, Lexus LS400, Hyundai Sonata, and more

About the Motorad UltraStat Product Line

The UltraStat line from Motorad focuses on precision-engineered thermostats designed to meet or exceed OEM specifications. This product line emphasizes reliable temperature regulation and durability, making it suitable for a variety of passenger vehicles and light trucks. The 5302-170 thermostat is part of this line, offering consistent performance for vehicles requiring a 170°F thermostat.

Detailed Product Description

The Motorad UltraStat 5302-170 thermostat features a 2.51-inch sealing flange outside diameter that ensures a tight and leak-free installation. Its 1.18-inch bypass diameter and 1.66-inch bypass length allow coolant to circulate even when the thermostat is closed, preventing hot spots and promoting even engine temperature. The jiggle pin weep hole is an important design element that helps release trapped air from the cooling system, reducing the risk of overheating. With a flange thickness of 0.05 inches, this thermostat provides a durable seal against the housing. This part is compatible with a broad range of vehicles including Acura, Chrysler, Dodge, Honda, Hyundai, Infiniti, Kia, Lexus, Mitsubishi, Nissan, Saturn, Toyota, and Volvo models.

Common Applications and Issues Addressed

• Regulates engine temperature to prevent overheating
• Maintains proper coolant flow during engine warm-up
• Prevents coolant bypass issues that can cause inefficient cooling
• Helps avoid engine damage caused by faulty thermostat operation
• Reduces risk of air lock in the cooling system with jiggle pin weep hole

Installation Notes and Tips

Ensure the engine is cool before removing the old thermostat to avoid burns. Clean the thermostat housing surface thoroughly to ensure a proper seal. This thermostat does not include a gasket or seal, so use the appropriate OEM gasket or sealant as required. Verify the 170°F temperature rating matches your vehicle’s specifications. Check for proper orientation of the jiggle pin weep hole during installation to allow air to escape from the cooling system.

Quality Assurance and Warranty

Motorad UltraStat thermostats are manufactured to meet strict quality standards for reliable performance. While specific warranty details are not provided, Motorad products typically undergo rigorous testing to ensure durability and fitment accuracy. Using the correct part number 5302-170 ensures compatibility and helps maintain your vehicle’s cooling system integrity.