Rein CHR0017R Radiator Coolant Hose - Upper

OE Quality Upper Radiator Hose

Rein CHR0017R is an OE-quality radiator coolant hose for European applications, built as a direct replacement for the original upper hose assembly. It is shaped for the BMW 540i, 740i, and 740iL upper hose applications listed below, with thermoplastic quick-connect fitment details that match the OE design.

• Direct-fit replacement for the upper radiator coolant hose
• Reduces installation time with application-specific fitment
• No cutting, refitting, or adjusting the hose
• Helps prevent leaks and repeat repairs from reused quick connectors and O-rings
• EPDM hose construction resists heat, salt, road debris, oil, and other contaminants
• Built to SAE J20 R4 D1 standards
• Maximum working pressure: 120 psi

Detailed Product Overview

This Rein radiator hose is engineered to match OE dimensions, including branch shape and connector style, so the replacement follows the factory routing and connection points. The hose measures 16.14 inches centerline length and uses 1.58-inch inside diameter ends with 1.89-inch outside diameter ends. Rein CHR0017R is a black, single hose assembly made for upper cooling-system service on BMW 540i, BMW 740i, and BMW 740iL models in the years listed.

This part cross-references URO 11531745595 for the same application. Rein CHR0017R is a practical choice when replacing a worn or leaking upper radiator hose on a BMW 540i, 740i, or 740iL and when OE-style fit and connector alignment matter.

What This Hose Helps Address

• Coolant leaks at the upper radiator hose connection
• Cracked, swollen, or heat-aged EPDM hose material
• Repeat leaks caused by reusing old quick connectors or O-rings
• Fitment issues from hoses that require trimming or reshaping
• Cooling-system service delays on BMW upper hose repairs

Installation Notes

Verify the vehicle build date before ordering, since the 1999 BMW 540i, 740i, and 740iL upper hose application fits vehicles up to September 1998. This hose is application-specific and is designed as a direct OE-style replacement, so no cutting or refitting should be required when installed on the correct vehicle. Inspect mating surfaces, connectors, and seals before installation to help ensure a proper seal.

Quality Assurance

Rein positions this hose as an OE-quality replacement for European vehicles, with construction that follows the original hose and assembly design. It is manufactured to SAE J20 R4 D1 requirements and backed by a 24-month or 24,000-mile warranty.