Dorman H620786 Brake Hydraulic Hose - Front Left

Reliable Brake Hydraulic Hose for Chevrolet, GMC, and Hummer

The Dorman H620786 brake hydraulic hose is designed to provide dependable brake fluid transfer for select Chevrolet, GMC, and Hummer models. Engineered with durable materials and precise fittings, this flexible brake hose ensures consistent braking performance for heavy-duty trucks and SUVs.

• Compatible with Chevrolet Silverado 2500, 2500 HD, 3500, 3500 HD, Suburban 2500, GMC Sierra 2500 HD, 3500 HD, Yukon XL 2500, and Hummer H2
• Constructed with EPDM rubber hose material and a protective plastic outer sleeve
• Includes stamped steel bracket and gaskets for secure mounting and sealing
• Features treated steel banjo fitting (10 mm thread diameter) and female fitting (M12 x 1.0 inside diameter)
• Overall length of 31 inches with flexible design for easy routing

Durable Construction and Precise Fitment

This Dorman brake hydraulic hose (part number H620786) is built with EPDM rubber, known for its resistance to heat, ozone, and brake fluid degradation. The black plastic outer sleeve adds an extra layer of protection against abrasion and environmental exposure. The hose includes a stamped steel bracket for secure attachment, along with gaskets to ensure a leak-free seal. Both ends feature treated steel fittings: a banjo fitting on one end and a female fitting on the other, designed to match OEM specifications for a direct replacement. With an overall length of 31 inches and a flexible design, this hose fits precisely on heavy-duty Chevrolet Silverado, GMC Sierra, and Hummer H2 models requiring this specific brake line.

Applications and Problem Resolution

• Replaces worn or cracked brake hydraulic hoses causing fluid leaks
• Restores proper brake pressure and pedal feel on Chevrolet Silverado 2500 HD and GMC Sierra 3500 HD
• Eliminates brake fluid contamination from damaged outer sleeves or fittings
• Prevents brake line failure due to corrosion or abrasion on Hummer H2 and Yukon XL 2500
• Ensures safe and reliable braking performance on Suburban 2500 and Silverado 3500 HD

Installation Notes and Tips

• Verify compatibility with your vehicle’s make, model, and year before installation
• Use the included stamped steel bracket and gaskets to secure the hose and prevent leaks
• Inspect brake system components for wear or damage during replacement
• Bleed the brake system thoroughly after installation to remove air and ensure proper function
• Consult vehicle service manual for torque specifications on banjo and female fittings

Quality Assurance and Warranty

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 under demanding conditions. This part is backed by Dorman’s limited warranty, providing coverage against defects in material and workmanship for a specified period. Always refer to Dorman’s warranty documentation for complete details.