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Dorman H621942 Brake Hydraulic Hose - Front Left
Reliable Brake Hydraulic Hose for Buick Regal
The Dorman H621942 brake hydraulic hose is designed specifically for Buick Regal models, providing a durable and flexible connection within your vehicle's braking system. Engineered with quality materials, this brake hose ensures consistent performance and safety under various driving conditions.
- Compatible with Buick Regal models
- Flexible hose constructed from EPDM rubber for durability
- Black outer sleeve made of rubber with protective jacket included
- Stamped steel bracket included for secure mounting
- Includes gaskets for proper sealing and leak prevention
- End fittings made of treated steel: banjo fitting on one end and female fitting on the other
- Overall length of 23.5 inches with 10 mm thread diameter
Durable Construction and Precise Fitment
This Dorman brake hydraulic hose (part number H621942) features a flexible EPDM rubber hose material that resists heat, ozone, and brake fluid degradation. The black rubber outer sleeve and protective jacket enhance durability against abrasion and environmental exposure. The hose includes a stamped steel bracket for secure attachment, ensuring proper alignment and reducing vibration. Both ends are equipped with treated steel fittings—a banjo fitting on one end and a female fitting on the other—designed to meet OEM specifications for a reliable seal and connection. The included gaskets help prevent leaks and maintain hydraulic pressure within the braking system.
Applications and Problem Resolution
- Replaces worn or cracked brake hydraulic hoses on Buick Regal vehicles
- Addresses brake fluid leaks caused by damaged or deteriorated hoses
- Restores proper brake pressure and pedal feel
- Prevents brake system failure due to hose rupture or fitting corrosion
- Eliminates vibration and noise from loose or improperly mounted hoses
Installation Notes and Tips
When installing the Dorman H621942 brake hydraulic hose, ensure the vehicle is securely lifted and supported. Carefully remove the old hose, taking care to capture any brake fluid to avoid contamination. Use the included gaskets to create a proper seal at the fittings. Tighten fittings to manufacturer torque specifications to prevent leaks. Verify that the stamped steel bracket is properly mounted to avoid hose movement or abrasion. After installation, bleed the brake system thoroughly to remove air and restore optimal brake performance.
Quality Assurance and Warranty
Dorman manufactures this brake hydraulic hose to meet or exceed OEM standards for fit, form, and function. The use of EPDM rubber and treated steel fittings ensures resistance to corrosion and wear. This part is backed by Dorman's limited warranty, providing coverage against defects in material and workmanship for a specified period. Always consult the warranty documentation for detailed terms and conditions.
| Brand | Dorman |
| Part Number | H621942 |
| Axis 1 Length | 22.32 |
| Bracket Included | Yes |
| Bracket Material | Stamped Steel |
| Color | Black |
| Describe Type | Flexible Hose |
| End 1 Fitting Material | Treated Steel |
| End 1 Fitting Type | Banjo |
| End 1 Thread Diameter | 10 mm |
| End 2 Fitting Inside Diameter | M10 X 1.0 |
| End 2 Fitting Material | Treated Steel |
| End 2 Fitting Type | Female |
| Gasket Or Seal Included | Yes |
| Hose Material | EPDM Rubber |
| Jacket Included | Yes |
| Mounting Hardware Included | No |
| Outer Sleeve Material | Rubber |
| Overall Length | 23.5 |
| Package Contents | 1 Brake Hose; Gaskets |
This part fits 2 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2013 | Buick | Regal | Front Left | w/RPO Code GNB (Performance Front Struts) |
| 2012 | Buick | Regal | Front Left | w/RPO Code GNB (Performance Front Struts) |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.