Rein CHR0506 Radiator Coolant Hose - Upper - Main Radiator

Brand Rein CHR0506
Position Upper - Main Radiator
Application Type ApplicationSpecific
Centerline Length Inches 15.2500
Centerline Length Metric 38.7350000
Color Black
Container Type BG
Country of Origin TR
Heat Shield Inc No
Hose End 1 Inside Diameter Inches 1.5700
Hose End 1 Inside Diameter Metric 3.9878000
Hose End 1 Outside Diameter Inches 1.8400
Hose End 1 Outside Diameter Metric 4.6736000
Hose End 2 Inside Diameter Inches 1.2300
Hose End 2 Inside Diameter Metric 3.1242000
Hose End 2 Outside Diameter Inches 1.5700
Hose End 2 Outside Diameter Metric 3.9878000
Hose End 3 Inside Diameter Inches 0.6800
Hose End 3 Inside Diameter Metric 1.7272000
Hose End 3 Outside Diameter Inches 0.9700
Hose End 3 Outside Diameter Metric 2.4638000
Hose End 4 Inside Diameter Inches 0.2700
Hose End 4 Inside Diameter Metric 0.6858000
Hose End 4 Outside Diameter Inches 0.5500
Hose End 4 Outside Diameter Metric 1.3970000
Hose Material EPDM
Hose Type Branched
Industry Standards SAE J20 R3
Item Height 4.5000
Item Length 15.2500
Item Level GTIN 843266076552
Item Qty 1
Item UOM EA
Item Weight 1.1700
Item Weight Unit UOM LB
Item Width 9.5000
Link to Manufacturer Page www.reinautomotive.com
Product Desc Extended 240 Rein OE Quality radiator 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 Radiator Hose
Product Desc Long 80 Rein OE Quality Radiator Hose
Product Desc Short 20 Radiator Hose
Protective Shield Inc Yes
Qty of Branches 2
Qty of Quick Connect Fittings 1
Warranty Distance 24000
Warranty Time 24
Fits Audi · 6 vehicles

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

EPDM construction. Resists heat, salt, road debris, oil, and other contaminants.

Branched hose design. Built with quick-connect fittings to reduce installation time.

Cross-references Genuine 8E0121070B for the same application. See all 1.

$124.27Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $124.27
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

OE-Style Radiator Hose for Audi S4

Rein CHR0506 is an OE-quality radiator coolant hose built for European cooling systems that require the original hose shape, branch layout, and quick-connect fitment. It is a direct replacement for the factory hose assembly on 2004-2009 Audi S4 Upper - Main Radiator applications, including the 2004 Audi S4 radiator hose replacement and 2009 Audi S4 upper radiator hose search terms buyers use when servicing the cooling system.

  • Direct replacement for the factory radiator coolant hose assembly
  • Branched EPDM hose construction with thermoplastic quick-connect fitting
  • Resists heat, salt, road debris, oil, and other contaminants
  • Reduces installation time by matching OE dimensions and routing
  • Helps avoid leaks caused by reusing worn connectors and seals
  • Built to SAE J20 R3 industry standards

Detailed Product Overview

The Rein CHR0506 radiator hose is shaped to match the OE layout for the upper main radiator position on Audi S4 models from 2004 through 2009. Its branched design, black EPDM hose material, and included quick-connect interface follow the original configuration closely, which helps maintain proper coolant routing and a clean factory-style installation. Rein CHR0506 is a practical choice for Audi S4 cooling system repair when the original hose has cracked, softened, or begun to seep at the connector points.

This part cross-references Genuine 8E0121070B for the same application.

Common Cooling System Issues It Can Address

  • Coolant leaks at the upper radiator hose connection
  • Cracked, swollen, or heat-aged hose material
  • Damaged quick-connect ends or worn sealing surfaces
  • Improper fit from universal hose repairs
  • Cooling system service needs on 2004-2009 Audi S4 models

Installation Notes and Tips

Fits 2004-2009 Audi S4, Upper - Main Radiator. Verify hose routing, connector style, and branch orientation against the original assembly before installation. Because this hose is application-specific, it is meant to replace the OE part without cutting, refitting, or adjusting the hose. Inspect mating surfaces and surrounding cooling components for wear before reassembly.

Quality Assurance

Rein designs this hose as an OE-quality replacement for European vehicles, with dimensions and connector details matched to the original assembly. Part number CHR0506 is built to meet SAE J20 R3 requirements and is backed by a 24-month or 24,000-mile warranty.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2009AudiS44.2LV8Upper - Main RadiatorQuick Connectors included for easy installation of HVAC heater hose.
2008AudiS44.2LV8Upper - Main RadiatorQuick Connectors included for easy installation of HVAC heater hose.
2007AudiS44.2LV8Upper - Main RadiatorQuick Connectors included for easy installation of HVAC heater hose.
2006AudiS44.2LV8Upper - Main RadiatorQuick Connectors included for easy installation of HVAC heater hose.
2005AudiS44.2LV8Upper - Main RadiatorQuick Connectors included for easy installation of HVAC heater hose.
2004AudiS44.2LV8Upper - Main RadiatorQuick Connectors included for easy installation of HVAC heater hose.
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Genuine — 8E0121070B