Motorad 733-176 Engine Coolant Thermostat

Motorad 733-176 Engine Coolant Thermostat

The Motorad 733-176 is a standard engine coolant thermostat built to OE specifications for precise coolant flow control. It uses OEM-quality materials, a copper case, and a wax compound for quick response to coolant temperature changes, making it a direct-fit choice for Volkswagen, Audi, and Porsche cooling system service.

Compatible With select 2006-2022 Volkswagen Passat, Touareg, CC, Atlas, and Atlas Cross Sport applications, plus Audi Q7 and Porsche Cayenne models, this thermostat is specified at 176 degrees F and includes an O-ring seal.

Key Features

• Standard engine coolant thermostat with a 176°F start-to-open temperature
• OE supplier construction with OEM-quality materials and manufacturing processes
• Copper case and wax compound for fast reaction to coolant temperature changes
• Includes gasket/seal with rubber O-ring seal type
• Jiggle pin weep hole and air relief valve design for easier air bleeding where applicable
• Offset design and OEM-style seals included where applicable
• Motorad Standard line replacement part number 733-176

Detailed Description

Motorad Standard 733-176 is engineered for vehicles that require a 176°F thermostat setting and OE-style fitment. It is used in cooling systems for the Volkswagen Passat, Volkswagen Touareg, Volkswagen CC, Audi Q7, Porsche Cayenne, Volkswagen Atlas, and Volkswagen Atlas Cross Sport, with application-specific notes calling for the thermostat and seal. The copper case and wax element help the thermostat react quickly as coolant temperature rises and falls, supporting stable engine operating temperature.

This part cross-references Bosch 15487 for the same application. The 733-176 part number is also listed among interchange references for OE-style replacement selection.

What It Helps Address

• Engine running too cool or too hot due to thermostat wear
• Delayed coolant flow control after warm-up
• Temperature fluctuation in the cooling system
• Coolant seepage at the thermostat seal area
• Air trapped in the cooling system during service

Installation Notes and Tips

Verify the required 176°F temperature specification before installation. Replace the thermostat in the correct housing orientation and inspect the sealing surface for corrosion, debris, or old gasket material. The included rubber O-ring seal should be seated evenly to prevent leaks. Follow the vehicle service procedure for coolant refill and air bleeding, especially on applications with a jiggle pin weep hole or air relief valve.

Quality Assurance

Manufactured by an OE supplier using OEM-quality materials and safety standards, this thermostat is built to meet OEM specifications and processes for demanding automotive cooling systems.