Expansion tank - 8W0121405C

Original coolant expansion tank used in Audi A4 B9 cars with a 2.0 TDI engine.

This is a factory OEM component responsible for storing excess coolant and maintaining the correct pressure in the system.

Technical specifications

• Catalog number (OE): 8W0121405C (alternative notation: 8W0 121 405 C)
• Function: Cooling system tank
• Condition: Original part, used - 100% functional, tested, without damage
• Manufacturer: Audi AG (OEM)

Main application

• Audi: A4 B9 2.0 TDI

Fitment guarantee

Every part undergoes quality and functionality checks before shipping.

Tip: Before purchasing, we recommend comparing the OE number of the part with the number of the removed component or verifying it using the VIN.