Audi Coolant Pipe / Tube / Line 4E0121399G
OEM Part #:
4E0-121-399-G
This item ships free!
Audi Coolant Pipe / Tube / Line 4E0121399G
OEM Part #:
4E0-121-399-G
Audi Coolant Pipe / Tube / Line 4E0121399G
OEM Part #:
4E0-121-399-G
This item ships free!
Loading...
This Part fits your
This Part DOES NOT FIT your
Change Vehicle
Find a part that fits
Click here
to see if this part fits your vehicle
The OEM coolant pipe (part number 4E0121399G) is integral to the engine cooling system, specifically routing coolant to maintain optimal operating temperatures. Located under the vehicle's hood, this connector pipe functions as a return line, directing coolant back to the engine, ensuring efficient temperature regulation. Compatible with the Audi A8 Quattro (2005-2009) and Audi S8 (2007-2010), it supports 6.0L and 5.2L engines with a transfer case cooler. Common issues requiring replacement include leaks or blockages due to wear over time, leading to overheating problems. This genuine part is sourced directly from salvage vehicles, ensuring authenticity and reliability for your vehicle's cooling needs.