HomeAir and Fuel Delivery > Turbocharger, Supercharger and Ram AirDorman 667-784 Turbocharger Coolant Line - Return
Part #: 667-784

Dorman 667-784 Turbocharger Coolant Line - Return

Return
9 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$26.14Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
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: Ford, Mustang
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Dorman Turbocharger Coolant Line for Mustang

Dorman 667-784 is a turbocharger coolant line built to match the fit and function of the original line on specified vehicles. It is made from stainless steel with molded rubber fittings for a direct replacement on 2015-2023 Ford Mustang return applications.

  • Direct replacement turbocharger coolant line for Ford Mustang
  • Stainless steel line construction with metallic gray finish
  • Molded assembly shape for OE-style routing
  • Male inlet and outlet fittings with female end configuration
  • End 1 threaded fitting diameter: 14mm x 10
  • Compatible with return-side routing from cylinder head to heater hose
  • Part number 667-784 for application matching

Fitment Details

Fits 2015-2023 Ford Mustang, Return, Cylinder Head to Heater Hose.

This turbo coolant line is engineered for the 2015-2023 Ford Mustang return circuit where the original line routes coolant from the cylinder head to the heater hose. Dorman 667-784 is built from stainless steel for durability and uses molded rubber fittings to follow the OE-style path and connection points. If you are replacing a leaking, corroded, or damaged turbocharger coolant line on a Ford Mustang, this part number 667-784 provides a direct-fit service solution.

Common Replacement Reasons

  • Coolant seepage at the turbocharger line
  • Corrosion or wear in the original stainless line
  • Cracked or deteriorated rubber fitting ends
  • Restricted coolant flow from a damaged line
  • Service replacement after removal of the original Mustang turbo coolant line

Installation Notes

Verify the return-side routing and connection style before installation. Confirm the 14mm x 10 threaded fitting diameter at end 1 and inspect the mating hose and connection points for wear, contamination, or damage. This line is a molded assembly, so correct alignment during installation helps maintain the original routing on the Ford Mustang.

Quality Assurance

Dorman designs this turbocharger coolant line to match original fit and function using quality materials for reliable performance and durability. Part number 667-784 is an OEM-style replacement for specified Ford Mustang applications.

BrandDorman
Part Number667-784
MaterialAcero inoxidable
MaterialStainless steel
Length13.6
ColorGris metálico
ColorMetallic gray
Inside Diameter0.125
End 1 GenderMacho
End 1 GenderMale
End 2 GenderFemale
End 2 GenderHembra
Centerline Length13.6
Outside Diameter0.2
ShapeEnsamble moldeado
ShapeMolded assembly
Grade TypeEquipo original
Grade TypeOem
Fitting ColorBlack
Fitting ColorNegro
Fitting ColorNoir
Fitting MaterialCaucho
Fitting MaterialÉlastomère
Fitting MaterialRubber
Inlet Fitting TypeMacho
Inlet Fitting TypeMale
Outlet Fitting TypeMacho
Outlet Fitting TypeMale
Contenidos del paquete1 línea del refrigerante de la turbina
Diámetro de la rosca de acoplación del extremo 114mm x 10
End 1 Fitting GenderMacho
End 1 Fitting GenderMale

This part fits 9 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2023FordMustang2.3LL4ReturnCylinder Head to Heater Hose
2022FordMustang2.3LL4ReturnCylinder Head to Heater Hose
2021FordMustang2.3LL4ReturnCylinder Head to Heater Hose
2020FordMustang2.3LL4ReturnCylinder Head to Heater Hose
2019FordMustang2.3LL4ReturnCylinder Head to Heater Hose
2018FordMustang2.3LL4ReturnCylinder Head to Heater Hose
2017FordMustang2.3LL4ReturnCylinder Head to Heater Hose
2016FordMustang2.3LL4ReturnCylinder Head to Heater Hose
2015FordMustang2.3LL4ReturnCylinder Head to Heater Hose

* 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:

FR3Z8K153BFR3Z8K153C

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