Rein CHR0014R Radiator Coolant Hose - Upper - Thermostat To Radiator

OE-Style Upper Radiator Hose for BMW Cooling Systems

Rein CHR0014R is an OE quality radiator coolant hose built for European vehicle cooling systems that require a direct-fit replacement. It matches the original hose shape and branch geometry, including thermoplastic quick connect fittings, for a cleaner repair on BMW applications.

Compatible With BMW Z3, 323i, 323is, 328i, 328is, M3, 320i, 325i, and 325is upper hose applications from the thermostat to the radiator.

Key Features

• Direct replacement design reduces installation time.
• No cutting, refitting, or hose adjustment required.
• OE-style thermoplastic quick connect fittings help prevent leaks and repeat repairs from reused connectors and O-rings.
• EPDM construction resists heat, salt, road debris, oil, and other contaminants.
• Built to SAE J20 R4 D1 standards for radiator hose service.
• Black finish with application-specific dimensions for a proper fit.

Product Details

This Rein radiator coolant hose is engineered as a complete OE quality direct-fit European hose for the upper thermostat-to-radiator position. The hose measures 14.7600 inches centerline length and uses 1.5800-inch inside diameter ends with 1.8900-inch outside diameter ends. Rein CHR0014R is designed for BMW cooling system service where accurate routing, secure connections, and consistent sealing are important.

This part cross-references BMW OE numbers 11531433340 and 11531708499 for the same application.

Common Cooling System Issues It Can Address

• Cracked or hardened upper radiator hose material.
• Coolant seepage at quick-connect fittings or O-ring interfaces.
• Poor fit from modified or trimmed replacement hoses.
• Heat-related hose swelling, softening, or collapse.
• Repeat cooling system repairs caused by reused connectors.

Installation Notes and Tips

Verify the vehicle application before installation and compare the hose routing, connector style, and end dimensions to the original part. Because this hose is application-specific, no cutting or refitting should be necessary when installed on the listed BMW models. Inspect mating surfaces, quick connectors, and sealing rings before assembly to help ensure a leak-free repair.

Quality Assurance

Rein positions this hose as an OE quality replacement for European vehicles, with construction and fitment based on original equipment specifications. Part number CHR0014R is backed by a 24-month warranty with 24,000-mile coverage.