HomeBrake > Hoses and PipesDorman H621945 Brake Hydraulic Hose - Front Left
Part #: H621945

Dorman H621945 Brake Hydraulic Hose - Front Left

Front Left
⚙️ 22 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Cadillac, ATS and CTS
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Reliable Brake Hydraulic Hose for Cadillac ATS and CTS

The Dorman H621945 brake hydraulic hose is designed to provide dependable brake fluid transfer for Cadillac ATS and CTS models. Engineered with durable materials, this flexible brake hose ensures consistent performance and safety under demanding driving conditions.

  • Compatible with Cadillac ATS and CTS vehicles
  • Constructed from EPDM rubber hose material for flexibility and durability
  • Black outer sleeve made of plastic with protective jacket included
  • Ends feature treated steel fittings: banjo fitting on one end and female fitting on the other
  • Includes gaskets for secure sealing and leak prevention
  • Overall length of 18.06 inches with 16.87 inches axis length
  • Bracket material is stamped steel (bracket not included)

Durable Construction and Precise Fitment

The Dorman H621945 brake hydraulic hose is manufactured with EPDM rubber, known for its resistance to heat, ozone, and brake fluid degradation. The black plastic outer sleeve and included jacket provide additional protection against abrasion and environmental factors. Both ends of the hose feature treated steel fittings—one banjo type with a 10 mm thread diameter and one female fitting with an M10 x 1.0 inside diameter—ensuring a secure connection to the brake system. This hose is designed specifically for Cadillac ATS and CTS models, providing a precise fit and reliable brake fluid transfer.

Common Applications and Problem Resolution

  • Replacement for worn or cracked brake hydraulic hoses on Cadillac ATS and CTS
  • Solves brake fluid leaks caused by damaged or deteriorated hoses
  • Addresses brake pedal softness due to hose expansion or failure
  • Prevents brake system contamination by maintaining a sealed hydraulic line
  • Restores proper brake pressure and responsiveness

Installation Notes and Tips

When installing the Dorman H621945 brake hydraulic hose, ensure all old gaskets are replaced with the included new gaskets to prevent leaks. Verify that the banjo and female fittings are properly torqued to manufacturer specifications. Although the bracket material is stamped steel, note that the bracket itself is not included and must be reused or replaced separately if damaged. Inspect the brake system for any additional wear or damage during installation.

Quality Assurance and Warranty

Dorman brake hydraulic hoses are manufactured to meet or exceed OEM standards for fit, form, and function. The H621945 part number undergoes rigorous quality control to ensure durability and safety. This product includes a gasket for proper sealing and is backed by Dorman's limited warranty, providing confidence in its performance and reliability for Cadillac ATS and CTS brake systems.

BrandDorman
Part NumberH621945
Axis 1 Length16.87
Bracket IncludedNo
Bracket MaterialStamped Steel
ColorBlack
Describe TypeFlexible Hose
End 1 Fitting MaterialTreated Steel
End 1 Fitting TypeBanjo
End 1 Thread Diameter10 mm
End 2 Fitting Inside DiameterM10 X 1.0
End 2 Fitting MaterialTreated Steel
End 2 Fitting TypeFemale
Gasket Or Seal IncludedYes
Hose MaterialEPDM Rubber
Jacket IncludedYes
Mounting Hardware IncludedNo
Outer Sleeve MaterialPlastic
Overall Length18.06
Package Contents1 Brake Hose; Gaskets

This part fits 22 vehicles. Search below:

YearMakeModelSubmodelBody TypeDrive TypePositionNotes
2018CadillacATSBaseFront Leftw/RPO Code JE5 (Power Brakes, 4 Wheel ABS)
2018CadillacATSPremium LuxuryFront Leftw/RPO Code JE5 (Power Brakes, 4 Wheel ABS)
2018CadillacATSCoupeFront Leftw/RPO Code JE5 (Power Brakes, 4 Wheel ABS)
2018CadillacATSLuxuryFront Leftw/RPO Code JE5 (Power Brakes, 4 Wheel ABS)
2018CadillacATSPremium PerformanceFront Leftw/RPO Code JE5 (Power Brakes, 4 Wheel ABS)
2018CadillacATSSedanFront Leftw/RPO Code JE5 (Power Brakes, 4 Wheel ABS)
2017CadillacATSBaseFront Leftw/RPO Code JE5 (Power Brakes, 4 Wheel ABS)
2017CadillacATSLuxuryFront Leftw/RPO Code JE5 (Power Brakes, 4 Wheel ABS)
2017CadillacATSPremium PerformanceFront Leftw/RPO Code JE5 (Power Brakes, 4 Wheel ABS)
2017CadillacATSPerformanceFront Leftw/RPO Code JE5 (Power Brakes, 4 Wheel ABS)
2016CadillacATSBaseFront Leftw/RPO Code JE5 (Power Brakes, 4 Wheel ABS)
2016CadillacATSPremiumFront Leftw/RPO Code JE5 (Power Brakes, 4 Wheel ABS)
2016CadillacATSLuxuryFront Leftw/RPO Code JE5 (Power Brakes, 4 Wheel ABS)
2016CadillacATSPerformanceFront Leftw/RPO Code JE5 (Power Brakes, 4 Wheel ABS)
2015CadillacATSSedanFront Leftw/RPO Code JE5 (Power Brakes, 4 Wheel ABS)
2015CadillacCTSSedanFront Leftw/RPO Code JE5 (Power Brakes, 4 Wheel ABS)
2014CadillacATSFront LeftExc. Heavy Duty Brakes
2014CadillacCTSBaseSedanRWDFront LeftExc. Heavy Duty Brakes
2014CadillacCTSPremiumSedanRWDFront LeftExc. Heavy Duty Brakes
2014CadillacCTSLuxurySedanRWDFront LeftExc. Heavy Duty Brakes
2014CadillacCTSPerformanceSedanRWDFront LeftExc. Heavy Duty Brakes
2013CadillacATSFront LeftExc. Heavy Duty Brakes

* 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:

150.62190220598322939274BH144920BH383800

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