Dorman H621990 Brake Hydraulic Hose - Front Left or Front Right

Durable Brake Hydraulic Hose for Audi A6, A7, S6, and S7 Models

The Dorman H621990 brake hydraulic hose is engineered to provide reliable brake fluid transfer for select Audi vehicles. Designed with quality materials and precise fittings, this flexible hose ensures consistent brake performance for Audi A6, A6 Quattro, A7, A7 Quattro, A7 Sportback, S6, and S7 models.

• Compatible with Audi A6, A6 Quattro, A7, A7 Quattro, A7 Sportback, S6, and S7
• Overall length of 27.44 inches for exact fitment
• Flexible EPDM rubber hose with a protective rubber outer sleeve
• Male and female treated steel fittings with M10 x 1.0 thread diameter
• Includes a durable jacket for added protection
• Mounting hardware, brackets, and seals not included

Product Features and Specifications

This Dorman brake hydraulic hose (part number H621990) features a flexible EPDM rubber construction that resists heat, ozone, and brake fluid degradation. The black rubber outer sleeve adds an extra layer of protection against abrasion and environmental exposure. Both ends of the hose are equipped with treated steel fittings—male on one end and female on the other—each with an M10 x 1.0 thread diameter to ensure secure and leak-free connections. The hose length of 27.44 inches is designed to match the original equipment specifications for proper installation and function.

Applications and Common Issues Addressed

• Replacement for worn or cracked brake hydraulic hoses on compatible Audi models
• Resolves brake fluid leaks caused by damaged or deteriorated hoses
• Prevents brake system failure due to hose swelling or bursting
• Restores proper brake pedal feel and hydraulic pressure
• Addresses issues related to hose abrasion or environmental wear

Installation Notes and Tips

When installing the Dorman H621990 brake hydraulic hose, ensure the vehicle is securely lifted and supported. Carefully remove the old hose, taking note of the routing and connection points. Use appropriate tools to avoid damaging the treated steel fittings during removal and installation. Since mounting hardware and brackets are not included, reuse the original components if they are in good condition. After installation, bleed the brake system thoroughly to remove air and verify proper brake function before driving.

Quality Assurance and Warranty Information

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 durability and resistance to common brake system contaminants. While mounting hardware and seals are not included, the hose is designed for direct replacement on specified Audi models. Please refer to Dorman's warranty policy for coverage details on this part number H621990.