Dorman H621451 Brake Hydraulic Hose - Rear Left Inner

Durable Brake Hydraulic Hose for Hummer H3T

The Dorman H621451 brake hydraulic hose is designed specifically for the Hummer H3T, providing reliable brake fluid transfer with a flexible and durable construction. Engineered to meet OEM specifications, this brake hose ensures consistent performance and safety under demanding driving conditions.

• Compatible with Hummer H3T models
• Flexible hose made from EPDM rubber for durability
• Black outer sleeve constructed from rubber material
• Both ends feature treated steel female fittings with M10 x 1.0 thread diameter
• Overall length of 16.75 inches for precise fitment
• Mounting hardware, brackets, gaskets, or seals not included

Product Features and Specifications

This Dorman brake hydraulic hose (part number H621451) is built with an EPDM rubber hose material that resists heat, ozone, and brake fluid degradation. The black rubber outer sleeve adds protection against abrasion and environmental factors. Both ends of the hose are equipped with treated steel female fittings, ensuring secure and corrosion-resistant connections. The fittings have a thread diameter of 10 mm (M10 x 1.0), matching the original equipment specifications for the Hummer H3T. With an overall length of 16.75 inches, this flexible hose fits precisely without the need for additional modifications.

Common Applications and Problem Resolution

• Replaces worn or cracked brake hydraulic hoses on Hummer H3T
• Solves issues related to brake fluid leaks or hose swelling
• Restores proper brake pressure and pedal feel
• Prevents brake failure caused by hose deterioration
• Addresses hose damage from abrasion or environmental exposure

Installation Notes and Tips

Installation of the Dorman H621451 brake hydraulic hose requires basic mechanical skills and proper brake system knowledge. Ensure the brake system is depressurized before removal. Use appropriate tools to avoid damaging the treated steel fittings. Since mounting hardware and brackets are not included, reuse existing components or source compatible parts separately. After installation, bleed the brake system thoroughly to remove air and verify proper brake function before driving.

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 corrosion and wear. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship to provide confidence in product reliability.