Dorman 902-5219 Engine Coolant Thermostat Housing - Engine Block

Engine Coolant Thermostat Housing for Volkswagen and Audi

Dorman 902-5219 is a replacement engine coolant thermostat housing built to match the fit and durability of the original housing on specified vehicles. It is made from black plastic and engineered to handle repeated temperature swings in the cooling system.

Fits 2005-2006 Volkswagen Jetta, engine block; 2006 Volkswagen Bora, engine block; 2007-2009 Volkswagen Bora, engine block; 2009 Volkswagen Jetta, engine block; 2010 Volkswagen Bora, engine block; and 2008 Audi A3 Quattro, engine block.

Key Features

• Replacement engine coolant thermostat housing for the cooling system
• Black plastic construction for OE-style fit and function
• Designed for specified Volkswagen Jetta, Volkswagen Bora, and Audi A3 Quattro applications
• 45-degree housing neck angle
• 1.382 in. inlet port diameter and 1.382 in. outlet port diameter
• Two mounting holes with 2.74 in. center-to-center spacing
• Cross-references Focus Auto Parts 86152 and OE number 03L121121A for the same application

Detailed Description

This Dorman thermostat housing, part number 902-5219, is engineered as a direct replacement for the original engine coolant thermostat housing on select Volkswagen and Audi vehicles. It is designed to match the stock housing’s fit and durability while standing up to extreme temperature changes in the cooling system. The housing is black plastic, measures 4 inches in height, and uses a 45-degree neck angle to match the specified engine block layout. Dorman 902-5219 is a practical choice for drivers servicing a Volkswagen Jetta, Volkswagen Bora, or Audi A3 Quattro cooling system.

What It Helps Address

• Cracked or warped thermostat housing
• Coolant leaks at the housing connection points
• Cooling system service on a Volkswagen Jetta, Volkswagen Bora, or Audi A3 Quattro
• Improper sealing caused by a damaged original housing
• Replacement of a worn engine coolant thermostat housing during cooling system repair

Installation Notes and Tips

Verify engine code, port layout, and housing orientation before installation. This housing does not include a gasket or seal, O-rings, bolts, or thermostat, so transfer or source the required service parts separately as needed. Clean the mating surfaces thoroughly and inspect the surrounding cooling system components before reassembly.

Quality Assurance

Dorman designs this replacement housing to match the fit and durability of the original part on the listed applications. It is built to withstand extreme temperature changes for extended service life in the cooling system.