Rein CHR0023P Engine Coolant Hose - Expansion Tank (Lower) To Water Pump

Engine Coolant Hose for BMW 540i, 740i, and 740iL

The Rein CHR0023P engine coolant hose is designed specifically for BMW 540i, 740i, and 740iL models. Engineered to meet SAE J20 R4 D1 industry standards, this hose offers reliable performance and durability in demanding automotive cooling systems.

Key Features of Rein CHR0023P Engine Coolant Hose

• Application-specific design reduces installation time
• No cutting, refitting, or adjusting required for a precise fit
• Prevents leaks and eliminates issues from reusing old quick connectors
• Resistant to heat, salt, road debris, oil, and other contaminants
• Constructed from durable EPDM material for long-lasting service
• Centerline length of 14 inches (35.56 cm) with precise hose end diameters

Detailed Product Description

The Rein CHR0023P engine coolant hose is a single hose constructed from EPDM, a material known for its excellent resistance to heat and chemical exposure. With a centerline length of 14 inches and carefully measured inside and outside diameters (0.87 inches inside diameter on both ends), this hose is engineered to fit BMW 540i, 740i, and 740iL models without modification. Its black color and robust construction ensure it withstands harsh under-hood conditions including exposure to oil, road salt, and debris. Designed to meet SAE J20 R4 D1 standards, this hose supports reliable coolant flow and helps maintain optimal engine temperature.

Common Applications and Issues Addressed

• Replacement of worn or cracked engine coolant hoses in BMW 540i, 740i, and 740iL
• Eliminates coolant leaks caused by degraded or improperly fitted hoses
• Prevents overheating issues related to compromised coolant flow
• Addresses failures from reusing old quick connectors that cause leaks
• Improves system reliability in vehicles exposed to harsh environmental conditions

Installation Notes and Tips

The Rein CHR0023P hose is designed for direct fitment with no need for cutting or adjustment, simplifying installation and reducing labor time. Ensure all old quick connectors are replaced to prevent leaks and comebacks. Verify hose orientation and secure clamps properly to maintain a tight seal. The hose does not include a heat shield, so inspect surrounding components for adequate heat protection during installation.

Quality Assurance and Warranty

Manufactured in Germany, the Rein CHR0023P engine coolant hose adheres to strict quality standards and SAE J20 R4 D1 industry specifications. Rein products are known for consistent quality and durability. Please refer to Rein’s warranty policy for specific coverage details.