URO 032121111AP Engine Coolant Thermostat Housing - Lower

Brand URO 032121111AP
Position Lower
Material Plastic
Outlet Port Diameter 1.03
Gasket Or Seal Included Yes
671 3
Flange Thickness 0.53
Air Vent (Bleeder Valve) Included Yes
Base Width (In) 2.7
Bolt Hole Diameter (In) 0.29
Center Bore Diameter (In) 1.77
Flange Length (In) 3.8
Flange Width (In) 2.7
Gasket Material Rubber
Hardware Included No
Housing Neck Angle (Deg) 90
Number Of Outlet Ports 5
Thermostat Included Yes
Fits Audi and Volkswagen · 25 vehicles

OE dimensions. Easy bolt-on installation with reliable hose connections.

Plastic housing. Resists flange warping and cracking that can lead to coolant leakage.

Gasket and thermostat included. Ready for a complete cooling-system service.

Cross-references Dorman - OE Solutions 902-958, URO 032121111AP and 032 121 111AN for the same application. See all 9.

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Engine Coolant Thermostat Housing for VW and Audi

URO 032121111AP is an engine coolant thermostat housing built to OE dimensions for a direct bolt-on replacement. It is made for lower cooling system applications on select Volkswagen and Audi models, with a plastic housing, integrated thermostat, gasket, and bleeder valve for a service-ready installation.

  • OE-style thermostat housing for reliable hose connection and proper fitment
  • Plastic construction helps resist flange warping and cracking
  • Includes thermostat, gasket/seal, and air vent (bleeder valve)
  • Five outlet ports with a 90-degree housing neck angle
  • Includes temperature sensor ports where applicable
  • URO part number 032121111AP

Fitment Details

Compatible with lower cooling system applications on select Volkswagen Golf, Volkswagen Polo, Volkswagen Lupo, Volkswagen SportVan, and Audi A3 models. Fits 2000-2007 Volkswagen Golf, lower; 2003-2007 Volkswagen Polo, lower; 2005-2009 Volkswagen Lupo, lower; 2007-2010 Volkswagen SportVan, lower; and 2003-2005 Audi A3, lower. This part cross-references Dorman OE Solutions 902-958 for the same application.

What This Part Helps Address

  • Coolant leakage from a cracked or warped thermostat housing
  • Improper hose sealing at the coolant outlet ports
  • Overheating caused by thermostat housing failure
  • Air trapped in the cooling system after service
  • Fitment issues from a housing that does not match OE dimensions

Installation Notes

Verify the lower housing location, outlet port layout, and sensor-port requirements before installation. The housing is designed for easy bolt-on replacement, and the included gasket/seal and bleeder valve support a cleaner cooling system service. Confirm hose routing and flange alignment during installation to help prevent leaks.

Quality Assurance

URO manufactures this thermostat housing to OE dimensions for dependable fit and hose connection integrity. The housing uses a high-quality plastic construction to help reduce flange distortion and cracking. Backed by a 24-month unlimited mileage warranty.

This part fits 25 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2010VolkswagenSportVanLower
2009VolkswagenLupoLower
2009VolkswagenSportVanLower
2008VolkswagenLupoLower
2008VolkswagenSportVanLower
2007VolkswagenGolfLower
2007VolkswagenLupoLower
2007VolkswagenPoloLower
2007VolkswagenSportVanLower
2006VolkswagenGolfLower
2006VolkswagenLupoLower
2006VolkswagenPoloLower
2005AudiA3Lower
2005VolkswagenGolfLower
2005VolkswagenLupoLower
2005VolkswagenPoloLower
2004AudiA3Lower
2004VolkswagenGolfLower
2004VolkswagenPoloLower
2003AudiA3Lower
2003VolkswagenGolfLower
2003VolkswagenPoloLower
2002VolkswagenGolfLower
2001VolkswagenGolfLower
2000VolkswagenGolfLower
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - OE Solutions — 902-958URO — 032121111AP032 121 111AN032 121 111AP032 121 111BG032 121 111BJTA-9958URO-011031V15-99-2036