Rein CHR0033 Radiator Coolant Hose - Lower

OE-Style Lower Radiator Hose for BMW

The Rein CHR0033 radiator coolant hose is a direct replacement for the lower cooling hose used on select BMW 525i and 530i models. Built to OE dimensions and formed for the original routing, it supports a clean, factory-style fit in the cooling system.

Made from EPDM rubber with a black finish, this hose is designed for standard replacement service on European vehicles. The Rein CHR0033 also uses thermoplastic quick-connect style fittings to match the original hose assembly layout on the listed BMW applications.

Key Features

• Direct replacement radiator coolant hose for the lower cooling circuit
• Fits 2004-2005 BMW 525i, lower, w/Quick Connectors
• Fits 2004-2005 BMW 530i, lower, w/Quick Connectors
• EPDM construction for cooling system service
• Black finish with OE-style shape and branch geometry
• Standard replacement grade for factory-style fitment
• Part number CHR0033 for easy identification

Detailed Description

Rein Automotive CHR0033 is engineered as an OE quality radiator coolant hose for European vehicles, with dimensions and connector style matched to the original hose assembly. The hose measures 400.05 mm in centerline length, with 38.35 mm inside diameter at both ends and a maximum working pressure rating of 50.00. This makes it a direct-fit lower hose solution for BMW cooling system service on the listed 525i and 530i applications. This part cross-references BMW 17127519257 for the same application.

For buyers searching for a 2004-2005 BMW 525i lower radiator hose with quick connectors or a 2004-2005 BMW 530i lower coolant hose, CHR0033 provides the OE-style fit and connector layout needed for a proper replacement. The Rein CHR0033 is built to match the original routing and connection points rather than requiring adaptation.

Common Problems This Hose Can Address

• Cracked or aged lower radiator hose material
• Coolant leaks at the hose body or connector ends
• Improper fit from non-OE-shaped replacement hoses
• Cooling system service needs on BMW 525i and 530i models
• Loss of sealing at quick-connect hose interfaces

Installation Notes and Tips

Confirm the vehicle application before installation by matching the year, model, and lower hose position. Inspect the mating connectors, clamps, and adjacent cooling components for wear or contamination before installing the new hose. Because this hose uses quick connectors on the listed applications, make sure the connection points are fully seated and locked according to the vehicle service procedure.

Quality Assurance

Rein Automotive positions this hose as an OE quality replacement for European vehicles, with construction and fitment based on the original hose assembly design. CHR0033 is built to standard replacement specifications for the listed BMW applications.