Description

The Audi Hose (8K0121081AH) is a genuine OEM coolant expansion tank hose used in the engine cooling system. It connects the coolant reservoir (expansion tank) to the engine/cylinder head coolant flange, allowing proper coolant circulation.

This hose plays a critical role in maintaining engine temperature control, preventing overheating, and ensuring consistent coolant flow. It is commonly used in Audi A4 (B8) 2.0T petrol engines and similar models.

 Specifications

• Product Name: Coolant Expansion Tank Hose
• Part Number: 8K0121081AH
• OEM / Genuine Part: Yes (Audi / VAG Group)
• Type: Coolant hose (pre-shaped molded hose)
• Material: Reinforced rubber with heat resistance
• Function: Transfers coolant between reservoir and engine