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Runs from the water valve to the engine. Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.
This item fits the following BMWs:
BMW 3 Series - 318i, 318i Convertible, 318is, 318ti
This product was last offered at the strikethrough price on
08-26-2026
This product was last offered at the strikethrough price on
05-15-2026
Replace your cracked or leaking radiator hose to prevent further leaks and potentially catastrophic failure. This hose replaces the lower radiator hose that connects from the radiator outlet to the thermostat housing.
OEM Rein radiator hoses are always a perfect option when performing maintenance thanks to their high quality and longevity.
This item fits the following BMWs:
E30 BMW 318i, 318i Convertible, 318is
Fits BMW Engines including:
M42
This product was last offered at the strikethrough price on
05-05-2026
This product was last offered at the strikethrough price on
05-07-2026
This product was last offered at the strikethrough price on
08-13-2026
Water Hose - Expansion Tank to Radiator (Vent Hose) is an essential component for maintaining the proper function of your BMW’s cooling system. This high-quality hose ensures efficient coolant flow between the expansion tank and radiator, preventing overheating and reducing the risk of coolant leaks. Designed to meet or exceed OEM specifications, the Water Hose - Expansion Tank to Radiator (Vent Hose) provides a perfect fit for reliable, long-lasting performance. Available through Turner Motorsport, this hose is a direct-fit replacement that ensures seamless installation and superior engine cooling.
Upgrade your BMW’s cooling system with the Water Hose - Expansion Tank to Radiator (Vent Hose), ensuring optimal engine performance and protection against overheating.
This product was last offered at the strikethrough price on
07-07-2026
This product was last offered at the strikethrough price on
08-13-2026
Rein Coolant Overflow Hose is designed to meet the highest standards of performance and durability for your vehicle's cooling system. This high-quality hose ensures the proper transfer of excess coolant from the engine to the overflow reservoir, preventing overheating and ensuring optimal engine performance. Manufactured from reinforced rubber materials, the Rein Coolant Overflow Hose guarantees long-lasting reliability and precise fitment for various vehicle makes and models. It’s the perfect upgrade or replacement for worn-out hoses in any cooling system.
Available through Turner Motorsport, this coolant overflow hose is rigorously tested to withstand extreme temperatures, pressures, and daily use. If you’re looking to maintain or improve your car's cooling efficiency, the Rein Coolant Overflow Hose is an essential component.
Enhance your vehicle's performance and reliability by replacing your old coolant hose with the Rein Coolant Overflow Hose today.
This product was last offered at the strikethrough price on
08-13-2026
This product was last offered at the strikethrough price on
05-15-2026