Dorman H621179 Brake Hydraulic Hose - Rear Right

Reliable Brake Hydraulic Hose for Chevrolet and GMC Trucks

The Dorman H621179 brake hydraulic hose is designed specifically for heavy-duty Chevrolet and GMC trucks, including the Sierra 3500 HD, Silverado 3500, and Silverado 3500 HD models. This flexible brake hose ensures consistent brake fluid delivery and reliable performance under demanding conditions.

• Compatible with Chevrolet Sierra 3500 HD, Silverado 3500, and Silverado 3500 HD
• Durable black EPDM rubber hose material for flexibility and resistance
• Outer sleeve made of rubber for added protection
• Ends feature treated steel fittings: banjo fitting on one end and female fitting on the other
• Includes necessary gaskets for proper sealing
• Overall length of 18.25 inches with a 15-inch axis length
• End 1 thread diameter of 10 mm and end 2 fitting inside diameter M10 x 1.0

Durable Construction and Precise Fitment

The Dorman H621179 brake hydraulic hose is constructed with EPDM rubber, known for its excellent resistance to heat, ozone, and brake fluid. The flexible hose design allows for smooth movement and vibration absorption, reducing stress on brake components. Both ends are equipped with treated steel fittings—banjo type on one end and female on the other—to ensure secure connections and prevent leaks. The included gaskets help maintain a tight seal, critical for brake system safety. This hose is tailored to fit Chevrolet and GMC heavy-duty trucks, providing a direct replacement that meets OEM specifications.

Applications and Common Issues Addressed

• Replacement of worn or cracked brake hydraulic hoses on Chevrolet Sierra 3500 HD and Silverado 3500 models
• Fixing brake fluid leaks caused by damaged or deteriorated hoses
• Resolving brake pressure loss due to hose failure
• Upgrading from aging or brittle hoses to improve brake system reliability
• Addressing hose swelling or bulging under pressure

Installation Notes and Tips

• Ensure the vehicle is securely lifted and supported before beginning brake hose replacement
• Use the included gaskets to guarantee a proper seal at the fittings
• Do not reuse old mounting hardware or brackets as they are not included
• Carefully route the hose to avoid kinks or contact with moving parts
• After installation, bleed the brake system thoroughly to remove air and restore proper brake function

Quality Assurance and Warranty Information

Dorman manufactures the H621179 brake hydraulic hose to meet or exceed OEM standards for fit, form, and function. The use of treated steel fittings and EPDM rubber ensures durability and resistance to common brake system contaminants. This part includes a gasket for proper sealing and is backed by Dorman's quality control processes. Warranty coverage details should be confirmed with the point of purchase or Dorman directly.