Description:

Upgraded Radiator Coolant Expansion Tank Cap Cover (2.0bar) for BMW 2012 to 2017 640i. This replacement cap ensures a secure seal for your radiator expansion tank to prevent leaks and maintain proper system pressure.

• Fitment: BMW 2012 to 2017 640i
• Pressure Rating: 2.0bar
• Replace Part Numbers: 17137516004, 17117639021, 17 11 7 639 021, 17 13 7 516 004
• Model Number: 17117639021 17137516004 B 7431 90
• Part Number: B07431 B23
• Exterior Finish: Black
• Installation: Direct replacement for broken or cracked caps without further adjustment
• Package Includes: 1 Piece Coolant Reservoir Tank Cap