Motorad 576-189 Engine Coolant Thermostat Housing Assembly

Overview of Motorad Integrated Housing Thermostat 576-189

The Motorad Integrated Housing Thermostat 576-189 is designed specifically for Audi A4 and A4 Quattro models. This engine coolant thermostat housing assembly ensures precise temperature regulation with a start-to-open temperature of 189°F, helping maintain optimal engine performance.

• Compatible with Audi A4 and A4 Quattro vehicles
• Integrated Housing Thermostat product line by Motorad
• Start to open temperature: 189°F for accurate coolant flow control
• Constructed from plastic, stainless steel, and copper materials
• Includes one rubber gasket/seal for secure installation
• Features three outlet ports with diameters of 1.28 in, 1.26 in, and 1.14 in
• Two bolt holes for mounting (bolts not included)
• Color: Black

Motorad Integrated Housing Thermostat Product Line

The Integrated Housing Thermostat line by Motorad focuses on combining the thermostat and housing into a single assembly. This design simplifies installation and reduces potential leak points by integrating components typically installed separately. The 576-189 part benefits from this approach, offering a reliable and compact solution for engine coolant temperature regulation in Audi A4 and A4 Quattro models.

Detailed Product Description

This engine coolant thermostat housing assembly is engineered with durable materials including plastic, stainless steel, and copper to withstand the thermal and mechanical stresses of engine operation. The thermostat opens at 189°F, allowing coolant to flow through the three outlet ports, which vary slightly in diameter to accommodate specific coolant routing requirements. The included rubber gasket ensures a tight seal between the housing and engine block, preventing leaks. The assembly features two bolt holes for secure mounting; however, bolts and additional hardware are not included.

Common Applications and Issues Addressed

• Regulates engine coolant temperature for Audi A4 and A4 Quattro
• Prevents engine overheating by opening thermostat at 189°F
• Replaces faulty or leaking thermostat housing assemblies
• Addresses coolant leaks caused by worn or damaged seals
• Improves coolant flow efficiency with integrated housing design

Installation Notes and Tips

• Ensure engine is cool before beginning installation to avoid burns
• Use the included rubber gasket to prevent coolant leaks
• Torque bolts to manufacturer specifications (bolts not included)
• Inspect coolant hoses and connections for wear during installation
• Bleeder hole is not present; follow vehicle-specific bleeding procedures

Quality Assurance and Warranty

Motorad maintains strict quality control standards for the Integrated Housing Thermostat line, including part number 576-189. The assembly is manufactured to meet or exceed OEM specifications for fit and function. While specific warranty details are not provided, Motorad products typically come with a limited warranty against defects in materials and workmanship. Verify warranty terms with the product documentation or supplier.