Dorman H620777 Brake Hydraulic Hose - Front Left

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

The Dorman H620777 brake hydraulic hose is designed to provide dependable brake fluid transfer for select Buick, Chevrolet, GMC, and Saturn models. Engineered with durable materials, this flexible hose ensures consistent braking performance and safety.

• Compatible with Buick Acadia, Acadia Limited, Chevrolet Enclave, GMC Outlook, and Chevrolet Traverse
• Constructed with EPDM rubber hose material and a black rubber outer sleeve for durability
• Features treated steel fittings: banjo fitting on one end and female fitting on the other
• Includes gaskets for a secure, leak-free installation
• Overall length of 17 inches with a 14.56-inch axis length for precise fitment

Durable Construction and Precise Fitment

This Dorman brake hydraulic hose (part number H620777) 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. Both ends feature treated steel fittings—one banjo type with a 10 mm thread diameter and one female fitting with an M10 x 1.0 inside diameter—ensuring a secure connection to the brake system. The hose’s flexible design accommodates vehicle movement while maintaining fluid integrity.

Compatible Vehicle Applications

This brake hose is specifically designed for use on the following vehicles:

• Buick Acadia and Acadia Limited
• Chevrolet Enclave and Traverse
• GMC Outlook
• Saturn models within the same platform

Common Issues Addressed by This Brake Hose

• Brake fluid leaks caused by cracked or worn hoses
• Reduced braking efficiency due to hose swelling or internal damage
• Corrosion or damage to fittings leading to fluid loss
• Flexible hose failure from exposure to heat and road debris
• Replacement of original equipment hoses to maintain brake system integrity

Installation Notes and Tips

• Ensure the brake system is depressurized before removal
• Use the included gaskets to prevent leaks at fitting connections
• Verify hose length and fitting types match the original part
• Inspect surrounding brake components during installation for wear
• Bleed the brake system thoroughly after hose replacement to remove air

Quality Assurance and Warranty

Dorman manufactures this brake hydraulic hose to meet or exceed OEM specifications for fit, form, and function. The use of treated steel fittings and EPDM rubber materials supports long-term durability. This part includes a gasket for proper sealing and is backed by Dorman’s limited warranty, ensuring reliability and performance for your Buick, Chevrolet, GMC, or Saturn vehicle.