URO 420121403 Engine Coolant Reservoir

Engine Coolant Reservoir for Audi Applications

This URO engine coolant reservoir is a direct-fit replacement for select Audi cooling system applications. It is precision-molded to OE dimensions for sensor and connection compatibility, with materials selected to handle engine heat and demanding coolant conditions.

Key Features

• Guaranteed fitment for confirmed Audi applications
• OE-matched shape for original sensors and hose connections
• Heat-resistant construction for cooling system service
• Factory pressure-tested for leak verification
• URO Part Number 420121403

Detailed Description

Built as an OE-style engine coolant reservoir, this URO replacement supports proper coolant storage and system operation on Audi Q7 and Audi R8 models. The reservoir is molded to original dimensions to maintain fit with factory mounting points, sensors, and related connections. Part number 420121403 is also referenced as URO-015461 for cross-reference purposes.

Compatible With 2011-2015 Audi Q7 and 2008-2012 Audi R8, this reservoir is a practical replacement when the original tank is cracked, leaking, or no longer holding pressure. It also fits 2014 Audi R8. The URO 420121403 is intended for drivers restoring cooling system integrity on these Audi models.

What It Helps Fix

• Coolant leaks from a cracked or aged reservoir
• Loss of cooling system pressure
• Warning lights related to coolant level sensing
• Improper fit at factory hose or sensor connections
• Reservoir damage from heat cycling and coolant exposure

Installation Notes and Tips

Verify the part number and vehicle application before installation. Inspect the cap, hoses, sensor, and surrounding cooling system components for wear or damage before transferring the reservoir into service. Confirm all connections are seated properly and pressure-test the system after installation.

Quality Assurance

This reservoir is factory pressure-tested and backed by a 24 Month Unlimited Mileage Warranty. URO states that the part is molded to OE dimensions and built with materials suited for the engine cooling environment.