Rein CHE0943 Cylinder Head to Expansion Tank Water Hose with O-Ring

The Rein CHE0943 is an OE-quality replacement water hose designed to connect the cylinder head to the coolant expansion tank, and includes an O-ring for a leak-free seal. Engineered as a direct-fit replacement for BMW X3 and X4 models, this hose restores proper coolant flow and system pressure to factory specifications.

Key Features:

• Direct-fit replacement — identical in size, shape, and routing to the original equipment hose
• Includes O-ring for a watertight, secure connection at the cylinder head
• Thermoplastic quick-connect fittings match OEM design — no cutting, trimming, or refitting required
• Manufactured to OE specifications for proper form, fit, and function
• Helps prevent coolant leaks caused by cracked or deteriorated original hoses

OEM & Cross-Reference Part Numbers: 17127535528 / 17-12-7-535-528 / 888544125867

Rein Automotive is a trusted supplier of OE-quality replacement hoses and undercar components for European import vehicles. The CHE0943 is clearly labeled with the Rein part number, OEM cross-reference, and date code for easy identification and traceability.