Dorman H620046 Brake Hydraulic Hose - Rear Left or Rear Right

Reliable Brake Hydraulic Hose for Buick, Chevrolet, GMC, and More

The Dorman H620046 brake hydraulic hose is designed to provide dependable brake fluid transfer for select Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models. Engineered with durable materials, this flexible brake hose ensures consistent performance and safety for your vehicle's braking system.

• Compatible with Buick 9-7x, Chevrolet Trailblazer, GMC Envoy, Isuzu Ascender, Oldsmobile Bravada, Saab 9-7x, and related models
• Overall length of 12.88 inches for precise fitment
• Constructed with EPDM rubber hose and a protective rubber outer sleeve
• Ends feature treated steel fittings: banjo fitting on one end and junction fitting on the other
• Includes gaskets and a protective jacket for enhanced durability
• No mounting hardware or brackets included

Durable Construction and Design Features

This Dorman brake hydraulic hose (part number H620046) is built with EPDM rubber, known for its resistance to heat, ozone, and brake fluid degradation. The black rubber outer sleeve adds an extra layer of protection against abrasion and environmental factors. The hose ends are equipped with treated steel fittings— a 10 mm banjo fitting on one end and a 1/2 in-20 junction fitting on the other—ensuring secure and leak-free connections. The included gaskets help maintain a tight seal, while the protective jacket enhances hose longevity under demanding conditions.

Applications and Common Issues Addressed

• Replacement for worn or cracked brake hydraulic hoses causing brake fluid leaks
• Restores proper brake fluid flow to maintain braking performance
• Prevents brake line swelling or bursting due to hose material degradation
• Addresses brake pedal softness or sponginess related to hose failure
• Compatible with specific Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models requiring this hose length and fitting type

Installation Notes and Tips

When installing the Dorman H620046 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 ensure a proper seal at both fittings. Verify that the banjo and junction fittings are tightened to manufacturer torque specifications. After installation, bleed the brake system thoroughly to remove air and restore proper brake pedal feel.

Quality Assurance and Warranty

Dorman brake hydraulic hoses are manufactured to meet or exceed OEM standards for fit, form, and function. The H620046 part undergoes rigorous quality control to ensure durability and reliable performance. This product includes a gasket for sealing and comes with a limited warranty against defects in materials and workmanship, providing confidence in your replacement brake hose.