Motorad 658-170 Engine Coolant Thermostat

Reliable Engine Coolant Thermostat for Chrysler, Dodge, and Jeep

The Motorad Standard 658-170 engine coolant thermostat is designed to maintain optimal engine temperature for select Chrysler, Dodge, and Jeep models. Engineered with precision, this thermostat ensures efficient coolant flow and temperature regulation to support engine performance and longevity.

• Sealing flange outside diameter: 2.25 inches
• Height between flanges: 1.65 inches
• Standard type thermostat with a 170°F start to open temperature
• Includes rubber gasket/seal with O-ring seal type
• Features jiggle pin weep hole for proper air bleeding
• Bypass diameter of 1.09 inches and bypass length of 1.41 inches
• Flange thickness: 0.05 inches
• One seal included, gasket material is rubber

About the Motorad Standard Product Line

The Motorad Standard line offers dependable engine cooling components designed to meet OEM specifications. This Standard engine coolant thermostat provides consistent temperature control and reliable sealing, making it suitable for routine maintenance and replacement in compatible vehicles. The inclusion of a rubber gasket and O-ring seal ensures a secure fit and leak prevention.

Detailed Product Description

The Motorad Standard 658-170 thermostat is engineered to open at 170 degrees Fahrenheit, allowing coolant to circulate through the engine once the optimal operating temperature is reached. Its sealing flange outside diameter of 2.25 inches and flange thickness of 0.05 inches provide a precise fit within the thermostat housing. The jiggle pin weep hole facilitates air removal from the cooling system, preventing air pockets that can cause overheating. The thermostat includes a single rubber gasket with an O-ring seal type to ensure a tight, leak-free installation. The bypass diameter and length are designed to maintain proper coolant flow during engine warm-up.

Compatible Vehicles and Common Applications

• Compatible with Chrysler Avenger (2007 and later)
• Fits Dodge Caliber, Cirrus, Journey, and Avenger models
• Suitable for Jeep Compass, Patriot, and Sebring vehicles
• Used to regulate engine temperature and prevent overheating
• Replaces faulty or worn thermostats causing engine temperature fluctuations

Installation Notes and Tips

Before installation, ensure the engine is cool and the cooling system is depressurized. Remove the old thermostat and clean the housing surface thoroughly to prevent leaks. The included rubber gasket should be properly seated to maintain a secure seal. No special installation tool is required for this thermostat. Verify the thermostat orientation matches the original part to ensure correct operation.

Quality Assurance and Warranty

Motorad Standard thermostats are manufactured to meet industry standards for durability and performance. This part number 658-170 undergoes quality control inspections to ensure reliable operation. The product includes one rubber gasket and O-ring seal for leak prevention. Warranty information is provided by the manufacturer and should be referenced for specific coverage details.