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Subaru WRX
Subaru Forester XT
Subaru Impreza GT / Turbo Models
Keep your Subaru's cooling system operating as intended with the Subaru OEM Water Bypass Pipe. This genuine Subaru coolant crossover pipe plays an important role in directing coolant flow throughout the engine and turbocharger cooling system, helping maintain proper operating temperatures and long-term engine reliability.
Designed and manufactured to Subaru's strict OEM standards, the 14065AA370 Water Bypass Pipe provides factory-correct fitment, durability, and performance for turbocharged EJ-powered Subaru applications. It is the direct replacement for the earlier 14065AA340 design and is engineered to seamlessly integrate with the factory cooling system.
Cooling system components are exposed to constant heat cycles, pressure fluctuations, and years of engine operation. Over time, corrosion, physical damage, or wear can compromise coolant pipes and lead to leaks or cooling system inefficiencies.
Using a genuine Subaru replacement ensures proper routing, factory-style connections, and dependable performance. Unlike universal alternatives, this OEM bypass pipe is specifically engineered for Subaru turbocharged applications and designed to maintain proper coolant circulation throughout the engine.
The Water Bypass Pipe is commonly serviced during turbocharger replacement, engine rebuilds, coolant leak repairs, and major cooling system maintenance. Replacing worn or damaged coolant pipes while the engine is apart can help prevent future leaks and improve long-term reliability.
Whether you're restoring a high-mileage WRX, rebuilding an STI engine, or maintaining your Forester XT, genuine Subaru cooling system components provide peace of mind and factory-quality performance.
Current Subaru OEM Part Number:
When reliability matters, trust genuine Subaru components to keep your cooling system functioning properly. The Subaru OEM Water Bypass Pipe delivers the factory fit, durability, and coolant flow your turbocharged EJ engine was designed to have.
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