Dorman H620781 Brake Hydraulic Hose - Rear Left or Rear Left Outer

Reliable Brake Hydraulic Hose for Chevrolet and GMC Trucks

The Dorman H620781 brake hydraulic hose is designed to provide dependable brake fluid transfer for heavy-duty Chevrolet and GMC trucks. Engineered with durable EPDM rubber and treated steel fittings, this flexible hose ensures consistent braking performance for models like the Silverado 2500 HD and Sierra 3500 HD.

• Compatible with Chevrolet Silverado 2500, 2500 HD, 3500, 3500 HD, Suburban 2500, and GMC Sierra 2500 HD, 3500 HD, Yukon XL 2500
• Durable black EPDM rubber hose with a 13.75-inch axis length and 16.25-inch overall length
• Treated steel banjo fitting on one end and female fitting on the other, both with M10 x 1.0 thread diameter
• Includes necessary gaskets for proper sealing
• Flexible hose design for ease of installation and reliable brake fluid flow

Durable Construction and Precise Fitment

This Dorman brake hydraulic hose (part number H620781) features a black EPDM rubber outer sleeve that resists heat, ozone, and brake fluid degradation. The treated steel fittings—banjo type on one end and female on the other—ensure secure connections to the brake system. With an overall length of 16.25 inches and a 13.75-inch axis length, this hose is engineered to match the exact specifications required for Chevrolet Silverado and GMC Sierra heavy-duty models. The included gaskets help maintain a leak-free seal, critical for maintaining brake system integrity.

Applications and Common Issues Addressed

• Replacement for worn or cracked brake hydraulic hoses on Chevrolet Silverado 2500 HD and GMC Sierra 3500 HD
• Solves brake fluid leaks caused by damaged or deteriorated hoses
• Restores proper brake pressure and pedal feel in heavy-duty trucks
• Prevents brake system contamination from external elements
• Addresses hose swelling or bulging under high brake fluid pressure

Installation Notes and Tips

When installing the Dorman H620781 brake hydraulic hose, ensure all old gaskets are removed and replaced with the included new gaskets to prevent leaks. Use proper torque specifications on the banjo and female fittings to avoid damage. Inspect surrounding brake components for wear or damage during installation. This flexible hose design allows for easier routing in tight spaces common in Silverado and Sierra brake assemblies.

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 and resistance to brake fluid and environmental factors. This part is backed by Dorman's limited warranty, providing confidence in its reliability for Chevrolet Silverado 2500 HD and GMC Sierra 3500 HD brake system repairs.