Rein CHE0143R Engine Coolant Hose - Pipe To Auxiliary Water Pump

OE Quality Coolant Hose for BMW

The Rein CHE0143R engine coolant hose is a direct-fit replacement for European cooling system service, built to match OE hose shape, branch layout, and thermoplastic quick-connect design. It is engineered for BMW 528i, 525i, and 530i applications where a precise coolant hose connection is needed at the pipe to auxiliary water pump location.

For BMW 528i, 525i, and 530i cooling system repair, CHE0143R helps restore proper hose routing and connection integrity without trimming or refitting. The OE-style construction supports a cleaner repair on the BMW 528i coolant hose and BMW 530i auxiliary water pump hose applications.

Key Features

• Direct replacement engine coolant hose for European vehicles
• Application-specific design for accurate OE-style fitment
• Thermoplastic quick-connect fittings match the original hose assembly layout
• EPDM hose material resists heat, salt, road debris, oil, and other contaminants
• SAE J20R4 -D1 construction standard
• Black finish with OE-style routing and branch geometry
• Reduces installation time by eliminating hose cutting and refitting

Detailed Description

Rein CHE0143R is an OE quality water hose designed as a direct replacement for the original BMW coolant hose assembly. It measures 27.56 inches centerline length and uses two quick-connect fittings to match the factory connection points. This part cross-references Genuine 11531438634 for the same application. Rein Automotive focuses on OE-style replacement hoses for European vehicles, and this hose follows the original size, shape, and connector design needed for a proper repair.

Compatible With 1999-2003 BMW 528i, Pipe To Auxiliary Water Pump; 2000 BMW 528i, Pipe To Auxiliary Water Pump; 2001-2003 BMW 525i, Pipe To Auxiliary Water Pump; 2001-2003 BMW 530i, Pipe To Auxiliary Water Pump. The CHE0143R part number is a practical choice when replacing a worn BMW coolant hose assembly in the auxiliary water pump circuit.

What It Helps Fix

• Coolant leaks at aging hose connections
• Cracked or hardened EPDM hose sections
• Failed quick-connect interfaces and worn O-rings from reused components
• Improper hose routing caused by non-OE replacement parts
• Cooling system service delays from trimming or adapting the hose

Installation Notes and Tips

Install as a direct-fit replacement on the specified BMW applications. The OE-style design eliminates cutting, refitting, or adjusting the hose during service. Use the correct connection points for the pipe to auxiliary water pump location, and inspect mating surfaces before assembly to help prevent leaks. CHE0143R is supplied with quick-connect fittings as part of the hose assembly design.

Quality Assurance

Rein Automotive OE quality hoses are built for European vehicle cooling systems and are designed to match the original manufacturer’s hose configuration. The CHE0143R coolant hose is manufactured to SAE J20R4 -D1 standards and uses EPDM construction for durability in demanding underhood conditions.