Dorman 902-991 Coolant Thermostat Housing

In stock
SKU: 591|902991
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Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price $15.68
Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.

Product details

  • SKU 591|902991
  • Barcode 19495265436

Product Description

This replacement engine coolant thermostat housing is engineered to match the fit and durability of the stock thermostat housing on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

  • Ideal replacement - this engine coolant thermostat housing directly replaces the original housing on specified vehicle years, makes and models
  • Durable construction - this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
  • Cost-effective and reliable - offers original manufacturer quality at lower cost than getting replacement at dealer
  • Industry-leading design - professionally engineered by the aftermarket leader in replacement thermostat housings

Detailed Applications

Year Make Model Configuration Positions Application Notes
2008 Audi A4 L4 116 1.9L (1896cc) Engine Block Cover
2008 Audi A4 L4 120 2.0L (1968cc) Engine Block Cover
2008 Audi A4 L4 121 2.0L (1984cc); Engine Desg. BPW Engine Block Cover
2008 Audi A4 Quattro L4 116 1.9L (1896cc) Engine Block Cover
2008 Audi A4 Quattro L4 120 2.0L (1968cc); DIESEL Engine Block Cover
2007 Audi A4 L4 116 1.9L (1896cc) Engine Block Cover
2007 Audi A4 L4 120 2.0L (1968cc) Engine Block Cover
2007 Audi A4 L4 121 2.0L (1984cc); Engine Desg. BPW Engine Block Cover
2007 Audi A4 Quattro L4 116 1.9L (1896cc) Engine Block Cover
2007 Audi A4 Quattro L4 120 2.0L (1968cc); DIESEL Engine Block Cover
2006 Audi A4 L4 116 1.9L (1896cc) Engine Block Cover
2006 Audi A4 L4 120 2.0L (1968cc) Engine Block Cover
2006 Audi A4 L4 121 2.0L (1984cc); Engine Desg. BPW Engine Block Cover
2006 Audi A4 Quattro L4 116 1.9L (1896cc) Engine Block Cover
2006 Audi A4 Quattro L4 120 2.0L (1968cc); DIESEL Engine Block Cover
2005 Audi A4 L4 116 1.9L (1896cc) Engine Block Cover
2005 Audi A4 L4 120 2.0L (1968cc) Engine Block Cover
2005 Audi A4 Quattro L4 116 1.9L (1896cc) Engine Block Cover
2005 Audi A4 Quattro L4 120 2.0L (1968cc); DIESEL Engine Block Cover
2005 Audi A6 (Mexico) L4 1.8L (1781cc) Engine Block Cover
2005 Audi A6 (Mexico) L4 116 1.9L (1896cc); DIESEL Engine Block Cover
2005 Audi A6 Quattro L4 1.8L (1781cc) Engine Block Cover
2005 Volkswagen Passat L4 1.8L (1781cc) Engine Block Cover
2005 Volkswagen Passat L4 120 2.0L (1967cc); DIESEL Engine Block Cover
2004 Audi A4 L4 116 1.9L (1896cc) Engine Block Cover
2004 Audi A4 Quattro L4 116 1.9L (1896cc) Engine Block Cover
2004 Audi A6 L4 1.8L (1781cc) Engine Block Cover
2004 Audi A6 L4 116 1.9L (1896cc); DIESEL Engine Block Cover
2004 Audi A6 Quattro L4 1.8L (1781cc) Engine Block Cover
2004 Volkswagen Passat L4 1.8L (1781cc) Engine Block Cover
2004 Volkswagen Passat L4 120 2.0L (1967cc); DIESEL Engine Block Cover
2003 Audi A4 L4 116 1.9L (1896cc) Engine Block Cover
2003 Audi A4 Quattro L4 116 1.9L (1896cc) Engine Block Cover
2003 Audi A6 L4 1.8L (1781cc) Engine Block Cover
2003 Audi A6 L4 116 1.9L (1896cc); DIESEL Engine Block Cover
2003 Audi A6 Quattro L4 1.8L (1781cc) Engine Block Cover
2003 Volkswagen Passat L4 1.8L (1781cc) Engine Block Cover
2002 Audi A4 L4 116 1.9L (1896cc) Engine Block Cover
2002 Audi A4 Quattro L4 116 1.9L (1896cc) Engine Block Cover
2002 Audi A6 L4 116 1.9L (1896cc); DIESEL Engine Block Cover
2002 Volkswagen Passat L4 1.8L (1781cc) Engine Block Cover
2001 Audi A4 L4 1.8L (1781cc) Engine Block Cover; 8th Digit of VIN is D
2001 Audi A4 L4 116 1.9L (1896cc) Engine Block Cover
2001 Audi A4 Quattro L4 1.8L (1781cc) Engine Block Cover; 8th Digit of VIN is D
2001 Audi A4 Quattro L4 116 1.9L (1896cc) Engine Block Cover
2001 Volkswagen Passat L4 1.8L (1781cc) Engine Block Cover
2000 Audi A4 Quattro L4 116 1.9L (1896cc) Engine Block Cover
2000 Volkswagen Passat L4 1.6L (1595cc) Engine Block Cover
2000 Volkswagen Passat L4 1.8L (1781cc) Engine Block Cover
2000 Volkswagen Passat L4 1.9L Engine Block Cover
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Product Specifications

Air Vent (Bleeder Valve): No
Bolts Included: No
Color: Black
Gasket Or Seal Included: Yes
Housing Neck Angle (°): 45 Degrees From Base
Material: Plastic
Mounting Hole Diameter: 0.313 in
Mounting Hole Quantity: 2
O Rings Included: Yes
Package Contents: Water Outlet; O-ring
Package Quantity: 1
Packaging Type: Box
Thermostat Included: No

OE Numbers

DIRECT OE CROSS
038 121 121B VOLKSWAGEN
06B 121 121 VOLKSWAGEN
06B 121 121L VOLKSWAGEN