HomeBelts and Cooling > Thermostat and HousingURO 06B121121 Engine Coolant Thermostat Housing
Part #: 06B121121

URO 06B121121 Engine Coolant Thermostat Housing

⚙️ 9 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Audi and Volkswagen, A4, A4 Quattro, and Passat
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Reliable Engine Coolant Thermostat Housing for Audi and Volkswagen

The URO 06B121121 engine coolant thermostat housing is designed to maintain optimal engine temperature for Audi A4, A4 Quattro, and Volkswagen Passat models. This component ensures efficient coolant flow and helps prevent engine overheating.

Key Features of URO 06B121121 Thermostat Housing

  • Compatible with Audi A4, A4 Quattro, and Volkswagen Passat vehicles
  • Durable construction for long-lasting performance
  • Precision fit to OEM specifications for easy installation
  • Engine coolant thermostat housing designed to regulate engine temperature
  • Part number 06B121121 ensures correct replacement part

Product Details and Compatibility

The URO engine coolant thermostat housing 06B121121 is engineered to meet the exact requirements of Audi and Volkswagen cooling systems. It fits models including the Audi A4 and A4 Quattro as well as the Volkswagen Passat, providing a reliable seal and proper coolant flow. This thermostat housing is a critical component that connects the thermostat to the engine, allowing coolant to circulate and maintain the engine’s operating temperature within the manufacturer’s specifications.

Common Applications and Issues Addressed

  • Replacement for cracked or leaking thermostat housings
  • Resolves engine overheating caused by faulty coolant flow
  • Prevents coolant leaks that can lead to engine damage
  • Restores proper thermostat function in Audi A4, A4 Quattro, and Volkswagen Passat
  • Maintains engine temperature stability for improved performance

Installation Notes and Tips

When installing the URO 06B121121 thermostat housing, ensure the engine is cool and the cooling system is depressurized. Clean the mounting surface thoroughly to prevent leaks. Use the correct torque specifications to avoid damage to the housing or engine components. Verify compatibility with your specific Audi or Volkswagen model before installation.

Quality Assurance and Warranty Information

URO parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 06B121121 thermostat housing undergoes strict quality control to ensure proper fit and function. Please refer to URO’s warranty policy for coverage details on this engine coolant thermostat housing.

This part fits 9 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005VolkswagenPassat1.8LL4N/AMay require separate o-ring
2004VolkswagenPassat1.8LL4N/AMay require separate o-ring
2003VolkswagenPassat1.8LL4N/AMay require separate o-ring
2002VolkswagenPassat1.8LL4N/AMay require separate o-ring
2001AudiA41.8LL4N/AMay require separate o-ring
2001AudiA4 Quattro1.8LL4N/AMay require separate o-ring
2001VolkswagenPassat1.8LL4N/AMay require separate o-ring
2000VolkswagenPassatN/AMay require separate o-ring
2000VolkswagenPassat1.8LL4N/AMay require separate o-ring

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

06B 121 12106B 121 121L06B121121147-0043CH-9991URO-008057V10-8198

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.