HomeBelts and Cooling > Hoses and PipesRein CHR0773 Radiator Coolant Hose - Upper or Upper - Main Radiator
Part #: CHR0773

Rein CHR0773 Radiator Coolant Hose - Upper or Upper - Main Radiator

Upper and Upper - Main Radiator
18 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Audi and Volkswagen, A3 Quattro, Golf, Golf Alltrack, Golf R, Golf SportWagen, GTI, and TT Quattro
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Radiator Coolant Hose for Audi and Volkswagen Models

The Rein CHR0773 radiator coolant hose is designed to provide dependable cooling system performance for select Audi and Volkswagen vehicles. Engineered with durable EPDM material, this black coolant hose ensures consistent heat resistance and flexibility for optimal engine temperature regulation.

Key Features of Rein CHR0773 Radiator Coolant Hose

  • Constructed from EPDM material for enhanced durability and heat resistance
  • Standard replacement grade suitable for everyday use
  • Black color for a clean, professional appearance under the hood
  • Equal inside diameter of 31.75 mm on both ends for consistent coolant flow
  • Includes three branch connections to support complex cooling system layouts
  • Compatible with multiple Audi and Volkswagen models including A3 Quattro, Golf, Golf Alltrack, Golf R, Golf SportWagen, GTI, and TT Quattro

Detailed Product Description

The Rein CHR0773 radiator coolant hose is manufactured from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. This material choice ensures the hose maintains flexibility and structural integrity under varying engine temperatures. Both ends of the hose have an inside diameter of 31.75 mm, providing a uniform fit that supports efficient coolant circulation. The hose features three branch connections, making it suitable for vehicles with more complex cooling system requirements. Its black finish offers a professional look and helps resist dirt and grime buildup.

Applications and Common Issues Addressed

  • Replacement of worn or cracked radiator coolant hoses in Audi A3 Quattro and Volkswagen Golf models
  • Resolving coolant leaks caused by hose degradation or damage
  • Maintaining proper engine temperature by ensuring secure coolant flow
  • Supporting cooling system integrity in vehicles with multiple coolant branches
  • Preventing overheating issues related to faulty or aging hoses

Installation Notes and Tips

When installing the Rein CHR0773 radiator coolant hose, ensure the engine is cool to avoid burns or injury. Verify that the hose diameter matches the vehicle’s specifications—31.75 mm inside diameter on both ends—to guarantee a proper seal. Inspect all connection points for corrosion or damage before fitting the hose. Use appropriate clamps to secure the hose firmly and prevent leaks. It is recommended to replace any worn clamps during installation for optimal performance.

Quality Assurance and Warranty

Rein manufactures the CHR0773 radiator coolant hose to meet standard replacement grade specifications, ensuring reliable performance and durability. While specific warranty details are not provided, Rein products typically adhere to industry quality standards for automotive replacement parts. For peace of mind, verify warranty coverage with the point of purchase or manufacturer documentation.

BrandRein
Part NumberCHR0773
MaterialEpdm
ColorBlack
End 1 Inside Diameter31.75
End 2 Inside Diameter31.75
Protective Sleeve AttachedNo
Grade TypeStandard replacement
Branch Quantity3

This part fits 18 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
2017AudiA3 Quattro2.0LL4UpperTo 4/10/17, w/PR Code 8Z6, 8Z9
2017AudiTT Quattro2.0LL4UpperTo 5/15/17, w/PR Code 8Z6
2017VolkswagenGolfManual1.8LL4UpperTo 4/18/17
2017VolkswagenGolf AlltrackManual1.8LL4UpperTo 4/18/17
2017VolkswagenGolf RManual2.0LL4Upper - Main Radiatorw/PR Code 8Z4, 8Z5
2017VolkswagenGolf SportWagenManual1.8LL4UpperTo 4/18/17
2017VolkswagenGTIManual2.0LL4UpperTo 4/18/17
2016AudiA3 Quattro2.0LL4Upperw/PR Code 8Z6, 8Z9
2016AudiTT Quattro2.0LL4Upperw/PR Code 8Z6
2016VolkswagenGolf1.8LL4Upperw/PR Code TF5
2016VolkswagenGolf RManual2.0LL4Upper - Main Radiatorw/PR Code 8Z4, 8Z5
2016VolkswagenGolf SportWagenManual1.8LL4Upper
2016VolkswagenGTIManual2.0LL4Upper
2015AudiA3 Quattro2.0LL4Upperw/PR Code 8Z6, 8Z9
2015VolkswagenGolf1.8LL4Upperw/PR Code TF5
2015VolkswagenGolf RManual2.0LL4Upper - Main Radiatorw/PR Code 8Z4, 8Z5
2015VolkswagenGolf SportWagenManual1.8LL4Upper
2015VolkswagenGTIManual2.0LL4Upper

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

5Q0122101EA

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.