This is the return hose that attaches from the water pump to the radiator
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Whether you’re under the hood for a weekend project or keeping a high-performance engine in peak shape, the last thing you want to worry about is a brittle cooling system. That’s where the Rein Automotive Expansion Tank
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Think of these hoses as the heavy-duty upgrade your engine deserves. They aren't just "replacements"—they are built to survive the brutal environment under your hood.
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Get your BMW back on the road with a brand new engine oil pan
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Cooling system expansion tank
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TechSelect Turbo Kits include all hoses, hardware and gaskets needed
TechSelect Turbo Kit hoses are direct replacements to the OE, and include brackets, hardware and sealing components
This hardware is designed and manufactured to withstand the rigo
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Does not include mounting hardware
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Connects the expansion tank to the upper radiator hose
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OE-quality coolant expansion tank engineered to withstand the intense heat cycles of BMW's 4.4L Twin-Turbocharged V8 engines.
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BMW does not include a O-ring with their new thermostats
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This hose attaches from the engine block to the water pump
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This Rein radiator hose kit ensures reliable cooling performance and perfect fitment.
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The Rein Timing Chain Rebuild Kit - CKS0248 SELECT is the perfect choice for a reliable and efficient rebuild.
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This hose goes from the top of the radiator to the expansion tank. Upgrade your BMW’s cooling system with the Water Hose - Expansion Tank to Radiator by Rein, ensuring optimal engine performance and protection against overheating.
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Upgrade your BMW’s cooling system with the Radiator Expansion Tank Vent Line Hose by Rein, ensuring optimal engine performance and protection against overheating.
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Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.
Lifetime Replacement
