SKU: 4M0121081BK
Audi Genuine Coolant Overflow Hose - 4M0121081BK

Ensure your cooling system runs at peak performance with the Genuine Audi VW Engine Coolant Overflow Hose (Part # 4M0121081BK). Designed specifically as an upper main breather and expansion tank hose, this component safely transports excess coolant between your radiator and reservoir. Replacing a cracked, leaking, or brittle hose helps prevent engine overheating and protects your vehicle's cooling efficiency.

Key Features & Specifications

• Part Number: 4M0-121-081-BK (4M0121081BK)

• Position: Upper (Main / Breather line connecting the expansion tank to the engine and radiator)

• Compatibility: Engineered explicitly for 2017–2022 Audi Q7 (2.0L L4 engines)

• Material Quality: Manufactured with OEM-grade heat- and pressure-resistant polymers to withstand rigorous engine bay conditions.

• Fitment: Guaranteed direct factory fit for seamless installation without modifications.

• Brand: Audi

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