Dorman 667-644 Turbocharger Coolant Line - Supply

Brand Dorman 667-644
Position Supply
Material Acero/caucho
Material Steel/rubber
Length 100
Color Plata/negro
Color Silver/black
Inside Diameter 12
End 1 Gender Female
End 1 Gender Hembra
End 2 Gender Female
End 2 Gender Hembra
Centerline Length 100
Outside Diameter 20
Shape Ensamble moldeado
Shape Molded assembly
Grade Type Equipo original
Grade Type Oem
Fitting Color Plateado
Fitting Color Silver
Fitting Material Acero
Fitting Material Steel
Inlet Fitting Type Banjo bolt hole
Inlet Fitting Type Orificio de tornillo banjo
Outlet Fitting Type Banjo bolt hole
Outlet Fitting Type Orificio de tornillo banjo
Contenidos del paquete 1 línea de refrigerante
Diámetro de la rosca de acoplación del extremo 1 14mm x 10
End 1 Fitting Gender Female
End 1 Fitting Gender Hembra
End 1 Fitting Thread Diameter 14mm x 10
Package Contents 1 coolant line
Fits Audi and Volkswagen · 18 vehicles

OE direct replacement. Matches the fit and function of the original coolant line.

Molded assembly. Steel and rubber construction for reliable performance and durability.

OEM grade. Built to original-equipment standards for the turbocharger system.

Cross-references Rein CHT0576, 06B121497A and 06B121497B for the same application. See all 6.

$57.49Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $57.49
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Turbocharger Coolant Line for Audi and Volkswagen

Dorman 667-644 is a turbocharger coolant line built to match the fit and function of the original line on select Audi and Volkswagen applications. It uses steel and rubber construction with a molded assembly shape for OE-style routing and dependable coolant transfer.

Compatible With 2001-2008 Audi A4, Supply; 2001-2005 Audi A4 Quattro, Supply; and 2001-2005 Volkswagen Passat, Supply. This Dorman 667-644 replacement is designed for vehicles that need a direct-fit turbo coolant line with factory-style banjo bolt hole connections.

Key Features

  • Direct-fit turbocharger coolant line for select Audi A4, Audi A4 Quattro, and Volkswagen Passat models
  • Steel and rubber construction for strength and flexibility
  • Molded assembly shape supports OE-style routing
  • Female end connections with banjo bolt hole inlet and outlet fittings
  • Silver and black finish with steel fittings
  • OEM grade replacement for factory-style service
  • Part number 667-644 for application matching and catalog lookup

Detailed Description

This turbocharger coolant line is engineered to match the original line on specified vehicles, helping restore proper coolant flow to the turbocharger system. The molded steel/rubber design is sized with a 100 centerline length, 12 inside diameter, and 20 outside diameter, and it uses female ends with 14mm x 10 threaded fitting diameter at end 1. Dorman 667-644 is a practical OE-style replacement for turbocharged cooling circuits on Audi A4, Audi A4 Quattro, and Volkswagen Passat applications.

This part cross-references Rein CHT0576 for the same application.

What It Helps Address

  • Coolant leaks from a cracked or deteriorated turbo coolant line
  • Restricted coolant flow caused by damaged internal hose material
  • Fitment issues from a bent or mismatched replacement line
  • Connection problems at banjo bolt hole fittings
  • Loss of OE routing after line corrosion or wear

Installation Notes and Tips

Verify vehicle year, make, model, and supply-side application before installation. Compare the original line length, fitting style, and end configuration to Dorman 667-644 before removal. Inspect adjacent turbocharger coolant components, sealing surfaces, and mounting points for wear or damage so the replacement line can seat correctly.

Quality Assurance

Dorman designs this coolant line to match original fit and function on the listed applications and manufactures it from quality materials for reliable performance and durability. Part number 667-644 is built as an OEM-grade replacement for service on the specified Audi and Volkswagen vehicles.

This part fits 18 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2008AudiA41.8LL4Supply—
2007AudiA41.8LL4Supply—
2006AudiA41.8LL4Supply—
2005AudiA41.8LL4Supply—
2005AudiA4 Quattro1.8LL4Supply—
2005VolkswagenPassat1.8LL4Supply—
2004AudiA41.8LL4Supply—
2004AudiA4 Quattro1.8LL4Supply—
2004VolkswagenPassat1.8LL4Supply—
2003AudiA41.8LL4Supply—
2003AudiA4 Quattro1.8LL4Supply—
2003VolkswagenPassat1.8LL4Supply—
2002AudiA41.8LL4Supply—
2002AudiA4 Quattro1.8LL4Supply—
2002VolkswagenPassat1.8LL4Supply—
2001AudiA41.8LL4Supply—
2001AudiA4 Quattro1.8LL4Supply—
2001VolkswagenPassat1.8LL4Supply—
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Rein — CHT057606B121497A06B121497B06B121497C06B121497FV106926