Description This is a high-quality replacement coolant reservoir cap designed to fit various Audi, Volkswagen, and Bentley models. It replaces original equipment numbers 4M0121321Q, 4M0121321K, and 4M0121321H, ensuring a proper seal for the coolant expansion tank and maintaining optimal engine cooling system pressure.

Features - Precision-engineered to match OEM specifications - Ensures a tight leak-proof seal to prevent coolant loss - Helps maintain correct cooling system pressure - Durable construction withstands high engine temperatures - Easy to install with no special tools required

Specifications - Reference Numbers: 4M0121321Q, 4M0121321K, 4M0121321H - Material: High-temperature resistant plastic - Color: Black - Weight: 88g - Dimensions: 10 x 10 x 10 cm

Compatible With Suitable for Audi Q7 2016-2024 Suitable for Audi A4 2017-2024 Suitable for Audi A5 2018-2024 Suitable for Audi A6 2019-2024 Suitable for Audi A7 2019-2024 Suitable for Bentley Bentayga (select years)

Package Include 1 x Coolant Reservoir Cap

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Highlights

• This coolant reservoir cap seals the expansion tank to prevent coolant leaks and maintain proper cooling system pressure for efficient engine operation
• Designed to fit Audi Q7 2016-2024, A4 2017-2024, A5 2018-2024, A6 2019-2024, A7 2019-2024, and Bentley Bentayga select years
• Constructed from high-temperature resistant plastic that withstands extreme engine heat and resists cracking or warping over time
• Replaces OEM numbers 4M0121321Q, 4M0121321K, and 4M0121321H for a direct fit on compatible models
• Direct replacement design installs easily without modifications or special tools, restoring coolant system integrity quickly