Genuine Volkswagen Coolant Expansion Tank Cap P# 3B0121321 – Suits 2.0L TDI CR TB503 tailored to preserve both the

tailored to preserve both the interior and exterior of your vehicle

📦 Also available: left control arm

Built to Volkswagen’s OEM standards

✅ Compatible Engines:3

Genuine Volkswagen Coolant Expansion Tank Cap P# 3B0121321 – Suits 2.0L TDI CR TB503 tailored to preserve both theGenuine Volkswagen Coolant Expansion Tank Cap Part Number: P# 3B0121321 This genuine Volkswagen expansion tank cap is designed for use with the coolant reservoir on vehicles equipped with the 2. 0L TDI CR (103 kW 140 hp) engine. It maintains correct pressure within the cooling system, ensuring optimal temperature control and preventing leaks or coolant loss. Engine Compatibility: 4 Cylinder 2. 0L Bi Turbo Diesel (BTI) Common Rail Injection Engine