The cooling system is considered a weak point on several BMW generations. We put together cooling system service kits to help you get everything you need to refresh your system without any additional research. If you've done your research and know you only need one certain component, check out our Cooling category.
Protect your engine against thermal degradation and maintain precise cooling system pressure with a Rein Heat Exchanger Return Hose. Engineered as a direct fit replacement for failure prone factory coolant lines, this hose routes coolant through the heat exchanger assembly to prevent thermal spikes under heavy load. Manufactured with high grade heat resistant EPDM rubber and OEM style quick connect fittings, it provides exceptional resistance to internal pressure surges, oil exposure, and cracking across high output 3.0L inline six engine bays.
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