Rein CHE0552 Engine Coolant Hose - Thermostat To Cylinder Head

OE Quality Coolant Hose for BMW X3

The Rein CHE0552 engine coolant hose is a direct-fit replacement for European cooling systems that require OE-style routing and thermoplastic quick-connect ends. It is built for the 2007-2010 BMW X3 at the thermostat to cylinder head position, with the size, shape, and connection style matched to the original hose assembly.

For BMW X3 cooling system service, CHE0552 helps restore proper coolant flow without trimming, refitting, or adapting the hose during installation.

Key Features

• Direct replacement coolant hose for application-specific fitment
• Reduces installation time by matching OE hose geometry
• No cutting, refitting, or adjusting required
• Thermoplastic quick-connect fittings help maintain OE-style connection points
• EPDM hose construction resists heat, salt, road debris, oil, and other contaminants
• Built to SAE J20R4D1 industry standards
• Black hose finish with OE-style routing for the BMW X3 cooling circuit

Detailed Description

Rein CHE0552 is an OE quality engine coolant hose designed for European vehicles where exact hose shape and connector style matter. This hose is made as a direct replacement for the original BMW part, including the branch dimensions and thermoplastic quick-connect fittings specified for the thermostat to cylinder head connection. The result is a cleaner repair with fewer fitment adjustments and a more accurate restoration of the cooling system layout. This part cross-references Genuine 11537552339 for the same application.

Compatible With 2007-2010 BMW X3 thermostat to cylinder head cooling hose applications, CHE0552 supports proper coolant transfer in the engine cooling circuit. The Rein CHE0552 part number is also a useful reference when sourcing an OE-style BMW X3 coolant hose replacement.

What It Helps Solve

• Coolant leaks caused by aged or damaged hose material
• Fitment issues from using a hose that does not match OE routing
• Connection problems related to worn quick-connect fittings or o-rings
• Extended repair time from trimming or modifying a replacement hose
• Repeat cooling system comebacks from reusing old connectors

Installation Notes and Tips

Verify the thermostat to cylinder head hose routing before installation and compare the original hose shape, end style, and overall length to CHE0552. Inspect mating surfaces, quick connectors, and sealing components for wear or contamination before assembly. Because this hose is application-specific, it is intended to install without cutting or adjustment when used on the listed BMW X3 fitment.

Quality Assurance

Rein positions this hose as an OE quality replacement for European vehicles, with construction and connector design matched to the original hose assembly. The EPDM material and SAE J20R4D1 specification support dependable service in demanding engine bay conditions. Part number CHE0552 is engineered for direct-fit cooling system service on the 2007-2010 BMW X3.