Dorman H620839 Brake Hydraulic Hose - Front Left

Reliable Brake Hydraulic Hose for Buick Allure and LaCrosse

The Dorman H620839 brake hydraulic hose is designed to provide dependable brake fluid transfer for Buick Allure and LaCrosse models. Engineered with durable materials, this flexible brake hose ensures consistent performance and safety under various driving conditions.

• Compatible with Buick Allure and LaCrosse models
• Flexible hose constructed from EPDM rubber for durability
• Black outer sleeve made of rubber for protection
• Ends feature treated steel fittings: banjo type on one end and female on the other
• Includes necessary gaskets for proper sealing
• Overall length of 15.75 inches with a 12.69-inch axis 1 length
• End 1 thread diameter: 10 mm; End 2 fitting inside diameter: M10 x 1.0

Durable Construction and Precise Fitment

This Dorman brake hydraulic hose (part number H620839) is built with an EPDM rubber hose material that resists heat, ozone, and brake fluid degradation. The black rubber outer sleeve adds an extra layer of protection against abrasion and environmental factors. Both ends of the hose feature treated steel fittings—one banjo type and one female fitting—ensuring secure connections to the brake system. The included gaskets help maintain a leak-free seal during installation. With an overall length of 15.75 inches, this hose is designed specifically for Buick Allure and LaCrosse vehicles, providing a precise fit and reliable brake fluid flow.

Applications and Common Issues Addressed

• Replaces worn or cracked brake hydraulic hoses on Buick Allure and LaCrosse
• Solves 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 swelling
• Addresses corrosion or damage to original steel fittings

Installation Notes and Tips

Installation of the Dorman H620839 brake hydraulic hose requires basic mechanical skills and proper brake system knowledge. Ensure the vehicle is securely lifted and supported before beginning. Carefully remove the old hose, noting the routing and connection points. Replace the gaskets included with the new hose to ensure a proper seal. Avoid twisting or kinking the hose during installation. After installation, bleed the brake system thoroughly to remove any air and verify proper brake function before driving.

Quality Assurance and Warranty

Dorman brake hydraulic hoses are manufactured to meet or exceed OEM specifications for fit, form, and function. The H620839 part undergoes rigorous quality control to ensure durability and safety. This product includes a gasket for sealing and is backed by Dorman's limited warranty, providing coverage against defects in materials and workmanship under normal use.