Motorad 390-195 Engine Coolant Thermostat

Reliable Engine Coolant Thermostat for Volvo S80 and XC90

The Motorad Standard 390-195 engine coolant thermostat is designed to maintain optimal engine temperature for Volvo S80 and XC90 models. Engineered with precise temperature control and durable sealing components, this thermostat ensures efficient coolant flow and engine protection.

• Start to open temperature: 195°F for accurate thermal regulation
• Sealing flange outside diameter: 2.32 inches for secure fitment
• Includes rubber gasket with O-ring seal for leak prevention
• Jiggle pin weep hole to prevent air lock and ensure smooth coolant circulation
• Bypass diameter and length: 0.98 inches for proper coolant bypass flow
• Flange thickness: 0.05 inches for reliable mounting stability
• Height between flanges: 1.29 inches and overall height: 1.84 inches for precise installation

About the Motorad Standard Product Line

The Motorad Standard line offers dependable engine cooling components designed to meet OEM specifications. This product line focuses on delivering consistent performance and fitment for a range of vehicles, including Volvo models. The 390-195 thermostat from the Standard line provides a balance of quality materials and engineering to support engine temperature management without additional installation tools.

Detailed Product Description

The Motorad Standard 390-195 engine coolant thermostat is engineered to open at 195 degrees Fahrenheit, ensuring your Volvo S80 or XC90 engine reaches and maintains the correct operating temperature. The thermostat features a sealing flange with a 2.32-inch outside diameter and a rubber gasket with an O-ring seal to prevent coolant leaks. The jiggle pin weep hole allows trapped air to escape, reducing the risk of overheating due to air pockets. With a bypass diameter and length of 0.98 inches, this thermostat supports proper coolant circulation during engine warm-up phases. The flange thickness of 0.05 inches and height measurements ensure a secure and precise fit within the cooling system.

Common Applications and Issues Addressed

• Prevents engine overheating by regulating coolant flow
• Eliminates coolant leaks with included rubber gasket and O-ring seal
• Reduces air lock in the cooling system via jiggle pin weep hole
• Maintains consistent engine temperature for optimal performance
• Supports proper coolant bypass during engine warm-up

Installation Notes and Tips

This thermostat is designed for direct replacement in Volvo S80 and XC90 models. No special installation tools are included, so standard automotive tools are required. Ensure the sealing surfaces are clean and free of debris before installation. Replace the gasket and O-ring seal to maintain a leak-free connection. Verify the thermostat orientation matches OEM specifications to ensure proper coolant flow and temperature regulation.

Quality Assurance and Warranty

The Motorad Standard 390-195 thermostat is manufactured to meet industry standards for durability and performance. It includes a rubber gasket and O-ring seal to enhance reliability. While specific warranty details are not provided, Motorad products typically adhere to quality control processes to ensure consistent fit and function for Volvo S80 and XC90 vehicles.