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Dorman H621703 Brake Hydraulic Hose - Front Left
Reliable Brake Hydraulic Hose for Subaru Impreza and WRX Models
The Dorman H621703 brake hydraulic hose is designed specifically for Subaru Impreza, WRX, and WRX STI models. Engineered to provide consistent brake fluid transfer, this flexible hose ensures dependable braking performance under various driving conditions.
- Compatible with Subaru Impreza, WRX, and WRX STI
- Flexible EPDM rubber hose with black outer sleeve
- Includes stamped steel bracket and gaskets for secure installation
- End fittings made of treated steel: banjo fitting on one end and female fitting on the other
- Overall length of 20.5 inches with precise 10 mm thread diameter
Durable Construction and Precise Fitment
The Dorman H621703 brake hydraulic hose features a flexible EPDM rubber hose material that resists heat, ozone, and brake fluid degradation. The black rubber outer sleeve adds protection against abrasion and environmental exposure. This hose includes a stamped steel bracket for mounting stability and gaskets to ensure a leak-free seal. Both end fittings are crafted from treated steel, with a banjo fitting on one end and a female fitting on the other, designed to match the OEM specifications for Subaru Impreza, WRX, and WRX STI models. The hose measures 20.5 inches overall length, with a 10 mm thread diameter and M10 x 1.0 inside diameter fitting, ensuring a precise and secure connection.
Applications and Common Issues Addressed
- Replacement of worn or cracked brake hydraulic hoses
- Resolving brake fluid leaks caused by damaged fittings or seals
- Restoring proper brake fluid pressure and pedal feel
- Addressing hose swelling or bulging under pressure
- Upgrading to a hose with OEM-equivalent materials and fittings
Installation Notes and Tips
Before installation, verify compatibility with your specific Subaru Impreza, WRX, or WRX STI model year. Use the included stamped steel bracket and gaskets to ensure a secure and leak-free fit. Avoid twisting or kinking the hose during installation to maintain flexibility and integrity. Bleed the brake system thoroughly after installation to remove air and ensure optimal brake performance.
Quality Assurance and Warranty Information
Dorman manufactures the H621703 brake hydraulic hose to meet or exceed OEM standards for fit, form, and function. The use of treated steel fittings and durable EPDM rubber hose material supports long-term reliability. This product includes gaskets for proper sealing and a stamped steel bracket for secure mounting. Warranty coverage details can be obtained from Dorman, reflecting their commitment to quality and customer satisfaction.
| Brand | Dorman |
| Part Number | H621703 |
| Axis 1 Length | 19.87 |
| 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 | No |
| Mounting Hardware Included | No |
| Outer Sleeve Material | Rubber |
| Overall Length | 20.5 |
| Package Contents | 1 Brake Hose; Gaskets |
This part fits 66 vehicles. Search below:
| Year | Make | Model | Submodel | Transmission | Position | Notes |
|---|---|---|---|---|---|---|
| 2021 | Subaru | WRX | Front Left | |||
| 2020 | Subaru | WRX | Front Left | |||
| 2019 | Subaru | WRX | Limited | Manual | Front Left | |
| 2019 | Subaru | WRX | Limited | Automatic CVT | Front Left | |
| 2019 | Subaru | WRX | Base | Manual | Front Left | |
| 2019 | Subaru | WRX | Base | Automatic CVT | Front Left | |
| 2019 | Subaru | WRX | Premium | Manual | Front Left | |
| 2019 | Subaru | WRX | Premium | Automatic CVT | Front Left | |
| 2019 | Subaru | WRX | 6 Man | Manual | Front Left | |
| 2019 | Subaru | WRX | CVT | Automatic CVT | Front Left | |
| 2019 | Subaru | WRX STI | Limited | Front Left | ||
| 2019 | Subaru | WRX STI | Base | Front Left | ||
| 2019 | Subaru | WRX STI | STI | Front Left | ||
| 2018 | Subaru | WRX | Front Left | |||
| 2018 | Subaru | WRX STI | Front Left | |||
| 2017 | Subaru | WRX | Front Left | |||
| 2017 | Subaru | WRX STI | Front Left | |||
| 2016 | Subaru | WRX | Limited | Front Left | ||
| 2016 | Subaru | WRX | Base | Front Left | ||
| 2016 | Subaru | WRX | STI | Front Left | ||
| 2016 | Subaru | WRX | Premium | Front Left | ||
| 2016 | Subaru | WRX STI | Limited | Front Left | ||
| 2016 | Subaru | WRX STI | Base | Front Left | ||
| 2016 | Subaru | WRX STI | Series.HyperBlue | Front Left | ||
| 2015 | Subaru | WRX | Limited | Front Left | ||
| 2015 | Subaru | WRX | Base | Front Left | ||
| 2015 | Subaru | WRX | STI | Front Left | ||
| 2015 | Subaru | WRX | Premium | Front Left | ||
| 2015 | Subaru | WRX STI | Limited | Front Left | ||
| 2015 | Subaru | WRX STI | Base | Front Left | ||
| 2015 | Subaru | WRX STI | Launch Edition | Front Left | ||
| 2014 | Subaru | Impreza | WRX STI | Front Left | ||
| 2014 | Subaru | Impreza | WRX STI Limited | Front Left | ||
| 2014 | Subaru | Impreza | WRX | Front Left | ||
| 2014 | Subaru | Impreza | WRX Limited | Front Left | ||
| 2014 | Subaru | Impreza | WRX Premium | Front Left | ||
| 2014 | Subaru | WRX | Limited | Front Left | ||
| 2014 | Subaru | WRX | Base | Front Left | ||
| 2014 | Subaru | WRX | STI | Front Left | ||
| 2014 | Subaru | WRX | SE | Front Left | ||
| 2014 | Subaru | WRX STI | Base | Front Left | ||
| 2014 | Subaru | WRX STI | Sport-tech | Front Left | ||
| 2014 | Subaru | WRX STI | Tsurugi Edition | Front Left | ||
| 2013 | Subaru | Impreza | WRX STI | Front Left | ||
| 2013 | Subaru | Impreza | WRX STI Limited | Front Left | ||
| 2013 | Subaru | Impreza | WRX | Front Left | ||
| 2013 | Subaru | Impreza | WRX Limited | Front Left | ||
| 2013 | Subaru | Impreza | WRX Premium | Front Left | ||
| 2013 | Subaru | WRX | Limited | Front Left | ||
| 2013 | Subaru | WRX | Base | Front Left | ||
| 2013 | Subaru | WRX | STI | Front Left | ||
| 2013 | Subaru | WRX STI | Base | Front Left | ||
| 2013 | Subaru | WRX STI | Sport-tech | Front Left | ||
| 2012 | Subaru | Impreza | WRX STI | Front Left | ||
| 2012 | Subaru | Impreza | WRX STI Limited | Front Left | ||
| 2012 | Subaru | Impreza | WRX | Front Left | ||
| 2012 | Subaru | Impreza | WRX Limited | Front Left | ||
| 2012 | Subaru | Impreza | WRX Premium | Front Left | ||
| 2012 | Subaru | WRX | Base | Front Left | ||
| 2012 | Subaru | WRX | STI | Front Left | ||
| 2011 | Subaru | Impreza | WRX | Front Left | ||
| 2011 | Subaru | Impreza | WRX Limited | Front Left | ||
| 2011 | Subaru | Impreza | WRX Premium | Front Left | ||
| 2010 | Subaru | Impreza | WRX | Front Left | ||
| 2010 | Subaru | Impreza | WRX Limited | Front Left | ||
| 2010 | Subaru | Impreza | WRX Premium | Front Left |
* 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.