Expansion tank - 4G0121403R

Original coolant expansion tank designed for the Audi A7 with a 3.0 TFSI engine, among others. Factory OEM component responsible for maintaining the correct pressure and fluid level in the cooling system.

Technical specifications

• OE part number: 4G0121403R (alternative format: 4G0 121 403 R)
• Function: Storing and equalizing the coolant level
• Condition: Original used part - 100% functional, tested, without damage

Main application

• Audi: A7 3.0 TFSI

Fitment guarantee

Every part undergoes quality and functionality checks before shipping.

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