Rein CHE0516 Engine Coolant Hose - Transmission Oil Cooler Thermostat to Water Pump

Brand Rein CHE0516
Position Transmission Oil Cooler Thermostat to Water Pump
Application Type ApplicationSpecific
Centerline Length Inches 15.7500
Centerline Length Metric 40.0050000
Color Black
Container Type BG
Country of Origin TR
Heat Shield Inc No
Hose End 1 Inside Diameter Inches 0.8600
Hose End 1 Inside Diameter Metric 2.1844000
Hose End 2 Inside Diameter Inches 0.8600
Hose End 2 Inside Diameter Metric 2.1844000
Hose End 3 Inside Diameter Inches 0.0000
Hose End 3 Inside Diameter Metric 0.0000000
Hose End 4 Inside Diameter Inches 0.0000
Hose End 4 Inside Diameter Metric 0.0000000
Hose End 5 Inside Diameter Inches 0.0000
Hose End 5 Inside Diameter Metric 0.0000000
Hose Material EPDM
Hose Type Single
Item Height 5.0000
Item Length 12.0000
Item Level GTIN 843266077337
Item Qty 1
Item UOM EA
Item Weight 0.2750
Item Weight Unit UOM LB
Item Width 1.5000
Link to Manufacturer Page www.reinautomotive.com
Maximum Working Pressure 0.0000
Product Desc Extended 240 Rein OE Quality water hoses are designed to be direct replacements for OE hoses and assemblies. Rein hoses are identical, from the size and shape of their branches to the thermoplastic quick connect fittings as called for by the OE
Product Desc Invoice 40 Rein Water Hose
Product Desc Long 80 Rein OE Quality Water Hose
Product Desc Short 20 Water Hose
Protective Shield Inc No
Qty of Quick Connect Fittings 2
Fits BMW · 4 vehicles

OE direct replacement. Matches original hose and assembly dimensions for a straightforward install.

EPDM construction. Built to resist heat, salt, road debris, oil, and other contaminants.

Quick-connect fittings. Thermoplastic connectors help reduce installation time and leaks.

Cross-references 17127519251 for the same application. See all 1.

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Free returns within 60 days if it doesn't fit when fitment is verified.

OE Coolant Hose for BMW Cooling Service

Rein CHE0516 is an OE-quality engine coolant hose built for European vehicle cooling systems. It is a direct replacement for the original hose assembly, with the correct branch shape and thermoplastic quick-connect fittings for a clean service on BMW applications.

Compatible with 2004-2005 BMW 545i and 2004-2005 BMW 645Ci at the transmission oil cooler thermostat to water pump position, this hose is made for accurate fitment and straightforward replacement. The Rein CHE0516 helps reduce installation time while maintaining the factory-style connection points used on the original system.

Key Features

  • OE-quality replacement coolant hose for European vehicles
  • Direct-fit design with factory-style branch geometry
  • Thermoplastic quick-connect fittings for the original connection points
  • EPDM hose construction for heat and contamination resistance
  • Black finish with application-specific fitment
  • Designed to reduce installation time and avoid hose trimming or refitting

Detailed Description

The Rein CHE0516 engine coolant hose is engineered as a direct replacement for the original BMW hose assembly. It follows the OE layout, including the correct centerline length, branch configuration, and two quick-connect fittings, so the replacement matches the factory routing without modification. This makes it a practical choice for BMW 545i and BMW 645Ci cooling system service where accurate fitment matters.

Built from EPDM and sized for the specified application, this hose is resistant to heat, salt, road debris, oil, and other contaminants commonly found in the engine bay. Rein CHE0516 is also cross-referenced to BMW part number 17127519251 for the same application.

Common Problems This Hose Can Address

  • Cracked or leaking coolant hose sections
  • Damaged quick-connect fittings at the original hose assembly
  • Coolant loss from worn seals or reused connectors
  • Poor fit from universal hose repairs
  • Extended service time caused by cutting or adjusting the hose

Installation Notes and Tips

Install the hose as a direct replacement for the OE routing on the transmission oil cooler thermostat to water pump connection. Inspect the mating surfaces, quick-connect ends, and surrounding cooling components before installation. Reusing old quick connectors and O-rings can lead to leaks and repeat repairs, so verify all connection points are clean and properly seated before returning the vehicle to service.

Quality Assurance

Rein Automotive OE-quality hoses are built to match original equipment dimensions and connection style for European applications. CHE0516 is manufactured to follow the factory hose design used on the BMW 545i and BMW 645Ci cooling system layout.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionLitersCylindersPositionNotes
2005BMW545iAutomatic4.4LV8Transmission Oil Cooler Thermostat to Water Pump—
2005BMW645CiAutomatic4.4LV8Transmission Oil Cooler Thermostat to Water Pump—
2004BMW545iAutomatic4.4LV8Transmission Oil Cooler Thermostat to Water Pump—
2004BMW645CiAutomatic4.4LV8Transmission Oil Cooler Thermostat to Water Pump—
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
17127519251