Motorad 661-176 Engine Coolant Thermostat

Reliable Engine Coolant Thermostat for Volkswagen Vehicles

The Motorad Standard 661-176 engine coolant thermostat is designed to maintain optimal engine temperature for Volkswagen models including Beetle, Beetle Cabrio, Bora, Golf, Golf SportWagen, Jetta, and Passat. This thermostat ensures precise temperature regulation to support efficient engine performance and longevity.

• Sealing flange outside diameter: 2.63 inches
• Height between flanges: 1.3 inches
• Overall height: 1.86 inches
• Start to open temperature: 176°F
• Includes gasket with rubber O-ring seals (2 seals included)
• Features jiggle pin weep hole for pressure relief
• Flange thickness: 0.05 inches
• Standard type thermostat

Detailed Features of the Motorad Standard 661-176 Thermostat

This engine coolant thermostat from Motorad's Standard line is engineered to meet the specific cooling requirements of select Volkswagen models. The thermostat opens at 176 degrees Fahrenheit, allowing coolant flow to regulate engine temperature effectively. It includes two rubber O-ring seals and a gasket to ensure a secure, leak-free installation. The jiggle pin weep hole helps release trapped air and prevent pressure buildup, contributing to consistent cooling system performance. The compact dimensions, including a 2.63-inch sealing flange diameter and 1.86-inch height, make it compatible with the designated Volkswagen vehicles.

About the Motorad Standard Product Line

The Standard product line by Motorad offers reliable, OEM-quality replacement parts designed to meet factory specifications. This line focuses on delivering dependable performance and fitment for common automotive applications. The 661-176 thermostat exemplifies the Standard line’s commitment to quality and compatibility, providing a direct replacement for Volkswagen cooling systems without requiring modifications.

Common Applications and Issues Addressed

• Maintains proper engine operating temperature for Volkswagen Beetle, Golf, Jetta, and Passat models
• Prevents engine overheating by regulating coolant flow
• Helps avoid poor heater performance due to thermostat failure
• Reduces risk of coolant leaks with included rubber seals and gasket
• Supports efficient fuel consumption and emissions control by stabilizing engine temperature

Installation Notes and Tips

• Ensure the cooling system is cool before removal and installation
• Replace both thermostat and gasket/seals to prevent leaks
• Verify the jiggle pin is oriented correctly to allow air venting
• Torque mounting bolts to manufacturer specifications to avoid flange damage
• No special installation tools are included or required for this part

Quality Assurance and Warranty

The Motorad Standard 661-176 thermostat is manufactured to meet strict quality standards for durability and performance. It includes two rubber O-ring seals and a gasket to ensure a reliable seal. While specific warranty details are not provided, Motorad parts typically conform to OEM quality requirements, offering dependable service life when installed correctly.