HomeBelts and Cooling > Radiators, Coolers and Related ComponentsURO 8K0121403Q Engine Coolant Reservoir
Part #: 8K0121403Q

URO 8K0121403Q Engine Coolant Reservoir

35 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Audi and Porsche, A4, A4 Quattro, A5, A5 Quattro, allroad, Macan, and Q5
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Reliable Engine Coolant Reservoir for Audi and Porsche Models

The URO Engine Coolant Reservoir 8K0121403Q is designed to maintain optimal coolant levels in your vehicle's cooling system. Compatible with select Audi and Porsche models, this gray reservoir ensures proper coolant storage without including a cap, making it suitable for vehicles that require a separate cap assembly.

  • Compatible with Audi A4, A4 Quattro, A5, A5 Quattro, allroad, Porsche Macan, and Q5 models
  • Durable gray construction for long-lasting performance
  • Engine Coolant Reservoir without cap included
  • OEM part number 8K0121403Q for precise fitment
  • Designed to integrate seamlessly with existing cooling system components

Product Details and Specifications

This URO Engine Coolant Reservoir (part number 8K0121403Q) is engineered to meet the exact specifications required by Audi and Porsche vehicles such as the A4, A5, allroad, Macan, and Q5. The gray reservoir is constructed from high-quality materials to withstand the thermal and pressure demands of the engine cooling system. Note that this reservoir does not include a cap, so it is intended for use with vehicles that have a separate cap assembly or when replacing only the reservoir tank.

Compatible Vehicles and Common Applications

This coolant reservoir is compatible with the following vehicles:

  • Audi A4 and A4 Quattro
  • Audi A5 and A5 Quattro
  • Audi allroad
  • Porsche Macan
  • Audi Q5

It is designed to replace worn or damaged coolant reservoirs that can cause issues such as coolant leaks, overheating, or inaccurate coolant level readings.

Common Issues Addressed by This Coolant Reservoir

  • Coolant leaks due to cracked or damaged reservoir tanks
  • Overheating caused by insufficient coolant storage
  • Inaccurate coolant level monitoring from faulty reservoirs
  • Pressure loss in the cooling system affecting engine performance
  • Replacement of faded or discolored reservoirs to maintain system integrity

Installation Notes and Tips

When installing the URO Engine Coolant Reservoir 8K0121403Q, ensure the vehicle is cool and the engine is off. Drain the coolant system as necessary to prevent spills. Since the reservoir does not include a cap, retain the original cap or source a compatible replacement. Verify all hose connections are secure and free of leaks after installation. Proper bleeding of the cooling system may be required to remove air pockets.

Quality Assurance and Warranty Information

URO parts are manufactured to meet or exceed OEM standards, providing reliable performance for your Audi or Porsche vehicle. The 8K0121403Q Engine Coolant Reservoir undergoes rigorous quality control to ensure durability and fitment accuracy. Warranty coverage details should be confirmed with the distributor or retailer at the time of purchase.

BrandURO
Part Number8K0121403Q
ColorGray
Cap IncludedNo

This part fits 35 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2018PorscheMacanBaseN/A
2017PorscheMacanBaseN/A
2016AudiA4N/A
2016AudiA4 QuattroN/A
2016AudiA5 QuattroN/A
2016AudiallroadN/A
2016AudiQ52.0LL4N/A
2015AudiA4N/A
2015AudiA4 QuattroN/A
2015AudiA5 QuattroN/A
2015AudiallroadN/A
2015AudiQ52.0LL4N/A
2014AudiA4N/A
2014AudiA4 QuattroN/A
2014AudiA5N/A
2014AudiA5 QuattroN/A
2014AudiallroadN/A
2014AudiQ52.0LL4N/A
2013AudiA4N/A
2013AudiA4 QuattroN/A
2013AudiA5N/A
2013AudiA5 QuattroN/A
2013AudiallroadN/A
2013AudiQ52.0LL4N/A
2012AudiA4N/AFrom 01/09/2012.
2012AudiA4 QuattroN/AFrom 01/09/2012.
2012AudiA5N/A
2012AudiA5 QuattroN/A
2012AudiQ52.0LL4N/A
2011AudiA4N/A
2011AudiA4 QuattroN/A
2011AudiQ52.0LL4N/A
2010AudiA4N/A
2010AudiA4 QuattroN/A
2009AudiA4BaseN/A

* 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:

8K0 121 403AC8K0 121 403D8K0 121 403G8K0 121 403H8K0 121 403Q8K0121403Q9A7 121 403 00EPT0153PAB 121 403URO-014638V10-4478

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