Dorman H620451 Brake Hydraulic Hose - Rear Center Left, Rear Left Inner or Rear Right Inner

Reliable Brake Hydraulic Hose for Cadillac, Chevrolet, and GMC

The Dorman H620451 brake hydraulic hose is designed to provide dependable brake fluid transfer for select Cadillac, Chevrolet, and GMC models. Engineered with durable materials, this flexible hose ensures consistent braking performance and safety.

• Compatible with Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche 1500, Suburban 1500, Tahoe, and GMC Yukon, Yukon XL 1500
• Overall length of 15.5 inches for precise fitment
• Constructed with EPDM rubber hose material and a black rubber outer sleeve for durability
• Both ends feature treated steel female fittings with 7/16 in-24 and 3/8 in-24 thread diameters
• Flexible hose design allows for reliable brake fluid flow under varying conditions

Durable Construction and Design Features

This Dorman brake hydraulic hose (part number H620451) is built with an EPDM rubber hose core that resists heat, ozone, and brake fluid degradation. The black rubber outer sleeve adds protection against abrasion and environmental exposure. Both ends of the hose are equipped with treated steel female fittings, ensuring secure connections to the brake system. The flexible hose design accommodates vehicle movement and suspension travel without compromising brake fluid integrity.

Applications and Common Issues Addressed

• Replacement for worn or cracked brake hydraulic hoses on Cadillac Escalade and Chevrolet Tahoe models
• Solves brake fluid leaks caused by damaged or deteriorated hoses
• Restores proper brake pressure and pedal feel in GMC Yukon and Suburban 1500 vehicles
• Prevents brake system failure due to hose swelling or rupture
• Maintains brake fluid flow integrity in off-road or heavy-duty driving conditions

Installation Notes and Tips

Ensure the vehicle is securely lifted and supported before beginning brake hose replacement. Carefully disconnect the old brake hose fittings, noting the thread sizes: 7/16 in-24 on one end and 3/8 in-24 on the other. Avoid twisting or kinking the new hose during installation. Bleed the brake system thoroughly after installation to remove air and restore proper brake function. This hose does not include mounting hardware or brackets, so reuse existing components if applicable.

Quality Assurance and Warranty

Dorman manufactures the H620451 brake hydraulic hose to meet or exceed OEM specifications for fit, form, and function. The use of treated steel fittings and EPDM rubber materials ensures long-lasting performance under normal operating conditions. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship.