URO

URO 06D121101B Engine Coolant Hose

Brand URO 06D121101B
Material Epdm
Length 488
Hose End 1 Inside Diameter 18.78
Hose End 2 Inside Diameter 24.36
End 3 Inside Diameter (In) 1.48
End 4 Inside Diameter (In) 1.92
End 5 Inside Diameter (In) 0
Molded Yes
Number Of Branches 2
Number Of Quick Connect Fittings 0
Fits Audi · 9 vehicles

Cross-references Dayco 72755, Rein CHE0558 and URO 06D121101B for the same application. See all 6.

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

Engine Coolant Hose Overview

This URO engine coolant hose, part number 06D121101B, is a molded replacement hose for European vehicle cooling systems. It is built from EPDM and follows the original hose routing for a direct service replacement.

Key Features

  • EPDM construction for coolant-system durability.
  • Molded shape helps match the original hose path.
  • Two-branch design for the specified cooling circuit layout.
  • Fits Audi A4 and Audi A4 Quattro applications listed below.
  • Part number 06D121101B for accurate ordering and lookup.

Detailed Description

URO manufactures replacement parts for European vehicles with an emphasis on meeting or exceeding OEM specifications. This coolant hose is designed for the coolant flange to coolant pipe connection used on 2006-2009 Audi A4 and 2005-2009 Audi A4 Quattro models. The molded EPDM construction supports a factory-style fit, while the branched layout follows the original cooling-system routing. If you are replacing a worn or leaking hose on an Audi A4 or Audi A4 Quattro, part number 06D121101B provides a direct-match service solution for the listed applications.

Common Replacement Issues

  • Coolant seepage at the hose body or connection points.
  • Cracking, hardening, or swelling from age and heat cycling.
  • Incorrect routing from a previous repair or non-molded hose.
  • Loss of cooling-system integrity at the coolant flange to pipe connection.

Installation Notes and Tips

Verify the hose routing, branch layout, and connection diameters before installation. Inspect mating pipes, flanges, and clamps for wear or corrosion, and replace any damaged sealing surfaces before reassembly. Confirm the vehicle application by model year and cooling-system configuration prior to ordering 06D121101B.

Quality Assurance

URO Parts replacement components are manufactured to meet or exceed OEM specifications for European vehicles. The URO Premium line is positioned as an upgraded component range, and URO Premium products carry an unlimited mileage, lifetime warranty.

This part fits 9 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2009AudiA4CabrioletN/ACoolant Flange to Coolant Pipe
2009AudiA4 QuattroCabriolet2.0LL4N/ACoolant Flange to Coolant Pipe
2008AudiA42.0LL4N/ACoolant Flange to Coolant Pipe
2008AudiA4 Quattro2.0LL4N/ACoolant Flange to Coolant Pipe
2007AudiA42.0LL4N/ACoolant Flange to Coolant Pipe
2007AudiA4 Quattro2.0LL4N/ACoolant Flange to Coolant Pipe
2006AudiA42.0LL4N/ACoolant Flange to Coolant Pipe
2006AudiA4 Quattro2.0LL4N/ACoolant Flange to Coolant Pipe
2005AudiA4 Quattro2.0LL4N/ACoolant Flange to Coolant Pipe
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dayco — 72755Rein — CHE0558URO — 06D121101B06D 121 101B67067URO-020246