BMW No Hassle Coolant Reservoir Cap Replacement For 328i 2007-2016 And 330i 2016-2018 Radiator Expansion Tank Cap Engine Coolant Tank Cover High Quality ABS With Sealing Rubber Durable Leak Proof Easy Install

BMW Radiator Expansion Cap Replacement for 328i/330i (1x)
✔️ High-grade ABS with sealing rubber, leak-proof fit for BMW

This replacement coolant reservoir cap seals the expansion tank on BMWs, helping prevent coolant leaks and overheating. It provides a direct OEM-style fit for reliable sealing and long service life. Color: Black

✅ High-grade ABS with sealing rubber for a tight seal and heat resistance
✅ Direct OEM replacement for OEM part numbers 17117639020 and 17117521071
✅ Compatible with BMW 328i (2007-2016), 330i (2016-2018) and various models
✅ Durable, leak-proof cap designed for long service life

💡 What is a coolant reservoir cap used for?

The cap helps maintain system pressure and seal, preventing leaks and overheating.

• Maintains proper cooling system pressure
• Prevents coolant loss and boil-over
• Easy DIY replacement for BMW expansion tanks
• Durable ABS with sealing rubber for long life