Coolant Expansion Tank 17117573781 Compatible With BMW E46 X3 E83

1 A direct replacement for the old and broken one. Reference OEM number is 17111436413, 17117573751, 17117573781, 17132247553, 17137787039. 2 Professional manufacturing, this is perfect to fit for E46 X3 E83 X5 E53 Z4 E85 E86. 3 The vehicle's engine coolant recovery tank or expansion tank stores excess pressure and coolant when the radiator heats up. The water storage tank helps you keep the radiator full at all times and makes the radiator more efficient. If the coolant is insufficient, it may indicate a leak. 4 Stores and distributors can use pressure testers to check for small, hard-to-find leaks in the system. If your recovery tank is damaged, replace it immediately to avoid catastrophic cooling system failure. 5 Supporting factory production, with more perfect compatibility and quality. Has undergone extensive quality and safety testing to ensure reliable performance.

What's in the box
1 x Engine Coolant Tank