BMW Radiator Coolant Overflow Reservoir Expansion Tank Cap Cover Aftermarket Replacement Accessory Easy Install Direct Fit For E36 E32 E34 E46 X3 X5 Z4 Z8 OEM 17111742231

BMW Radiator Overflow Cap for Coolant Expansion Tank 1 Pack
✔️ Direct fit, OEM 17111742231 compatible, fits E36, E32, E34, E46

This is an aftermarket replacement cap for the radiator coolant overflow reservoir, designed to seal expansion tanks on BMW vehicles. It fits models including E36, E32, E34, E46, X3, X5, Z4, Z8 and other listed variants.

✅ OEM numbers included: 17111742231, 17117639022, 17 11 1 742 231, 17 11 7 639 022, 376743451, 0247, CPE0030P, 603-535, 603535
✅ Direct-fit design, simple installation, durable high-quality material
✅ Fits BMW models listed in compatibility, direct replacement
✅ Package includes: 1 x Radiator Coolant Overflow Reservoir Cap

💡 What is a radiator overflow cap used for in BMW cars?

This handy component seals the expansion tank to keep coolant under pressure and prevent leaks. - Keeps coolant from boiling over and maintains system pressure - Handy replacement for worn caps on compatible BMW models - Easy to install, direct-fit replacement with OEM-style seal