HomeDorman H621939 Brake Hydraulic Hose - Front Left
Part #: H621939

Dorman H621939 Brake Hydraulic Hose - Front Left

Front Left
12 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Cadillac, XTS
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Brake Hose for Cadillac XTS Front Left

This Dorman brake hydraulic hose is engineered for specific Cadillac XTS front left applications, including 2013-2019 models listed below. Built with EPDM rubber and treated steel fittings, Dorman H621939 is made to match the original hose’s fit, function, and braking performance for a proper brake repair.

  • Direct replacement brake hydraulic hose for front left placement
  • Black rubber outer sleeve with EPDM rubber hose construction
  • Treated steel banjo fitting on end 1 and treated steel female fitting on end 2
  • Includes gasket or seal; jacket included
  • Overall length: 18.26 in.; axis 1 length: 17.12 in.
  • End 2 thread size: M10 x 1.0; end 1 thread diameter: 10 mm
  • Compatible with Cadillac XTS front left brake hose applications

Fitment Details

Fits 2019 Cadillac XTS, front left, Armored Car or Limousine or Hearse.

Fits 2016-2018 Cadillac XTS, front left.

Fits 2014 Cadillac XTS, front left.

Fits 2016-2017 Cadillac XTS, front left, w/RPO Code B05 (Armored Body).

Fits 2015 Cadillac XTS, front left, w/RPO Code V4U (Equipment Coachbuilder, not to exceed 7,200 Lbs.); Stretch Livery (W30); w/RPO Code B9Q (Hearse Package); w/RPO Code B05 (Armored Body).

Fits 2013 Cadillac XTS, front left, w/RPO Code B05 (Armored Body); w/RPO Code B9Q (Hearse Package); Stretch Livery (W30).

Detailed Description

Dorman H621939 is a brake hydraulic hose designed for the front left position on select Cadillac XTS vehicles. It uses a flexible hose design with rubber construction and treated steel end fittings to help restore proper brake fluid transfer at the wheel end. The hose is built to match original equipment dimensions and connection styles, making it a practical replacement for service work on standard and specialty-body XTS applications. This part cross-references Raybestos Brakes BH383794 for the same application.

Common Repair Uses

  • Cracked or aged brake hose rubber
  • Brake fluid seepage at the hose ends
  • Soft or inconsistent brake pedal feel caused by hose deterioration
  • Corrosion or wear at the fitting connections
  • Front left brake line service on Cadillac XTS models

Installation Notes and Tips

Verify the front left position, fitting style, and thread size before installation. Replace the included gasket or seal during service and inspect the surrounding brake line, caliper connection, and mounting points for wear or corrosion. After installation, bleed the brake system according to factory procedure and check carefully for leaks.

Quality Assurance

Dorman designs this brake hose to match the fit, function, and performance of the original hose on the listed vehicles and positions. It is intended as a direct replacement for specific Cadillac XTS applications, including standard and specialty configurations.

BrandDorman
Part NumberH621939
ColorBlack
Outer Sleeve MaterialRubber
Mounting Hardware IncludedNo
Bracket IncludedNo
Gasket Or Seal IncludedYes
Axis 1 Length17.12
End 1 Fitting MaterialTreated steel
End 1 Fitting TypeBanjo
End 2 Fitting MaterialTreated steel
End 2 Fitting TypeFemale
Overall Length18.26
Jacket IncludedYes
Describe TypeFlexible hose
End 1 Thread Diameter10 mm
End 2 Fitting Inside DiameterM10 x 1.0
Hose MaterialEpdm rubber
Package Contents1 brake hose; gaskets

This part fits 12 vehicles. Search below:

YearMakeModelSubmodelBody TypePositionNotes
2019CadillacXTSFront LeftArmored Car Or Limousine Or Hearse
2018CadillacXTSLiveryFront Left
2017CadillacXTSLimousineFront Left
2017CadillacXTSHearseFront Left
2017CadillacXTSSedanFront Leftw/RPO Code B05 (Armored Body)
2016CadillacXTSLimousineFront Left
2016CadillacXTSHearseFront Left
2016CadillacXTSSedanFront Leftw/RPO Code B05 (Armored Body)
2015CadillacXTSFront Leftw/RPO Code V4U (Equipment Coachbuilder, not to exceed 7,200 Lbs.); Stretch Livery (W30); w/RPO Code B9Q (Hearse Package); w/RPO Code B05 (Armored Body)
2014CadillacXTSLimousineFront Left
2014CadillacXTSHearseFront Left
2013CadillacXTSFront Leftw/RPO Code B05 (Armored Body); w/RPO Code B9Q (Hearse Package); Stretch Livery (W30)

* 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:

150.62186220597922779676BH144916BH383794

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