Dorman H621728 Brake Hydraulic Hose - Rear Left or Rear Right

Reliable Brake Hydraulic Hose for Infiniti Models

The Dorman H621728 brake hydraulic hose is designed to provide dependable brake fluid transfer for select Infiniti vehicles. Engineered with durable materials, this flexible hose ensures consistent braking performance for models including the Infiniti M35h, M37, M56, Q50, Q60, Q70, and Q70L.

• Compatible with Infiniti M35h, M37, M56, Q50, Q60, Q70, and Q70L
• Flexible brake hydraulic hose with EPDM rubber construction
• Black outer sleeve made of durable rubber for protection
• Includes gaskets for secure sealing
• Ends feature treated steel fittings: banjo type on one end and female fitting on the other
• Overall length of 14.5 inches with 13.58 inches on axis 1

Durable Construction and Precise Fitment

This Dorman brake hydraulic hose (part number H621728) is built with EPDM rubber, known for its resistance to heat, ozone, and brake fluid degradation. The black rubber outer sleeve adds an extra layer of protection against abrasion and environmental factors. Both ends of the hose feature treated steel fittings—one banjo fitting with a 10 mm thread diameter and one female fitting with an M10 x 1.0 inside diameter—ensuring a secure and leak-free connection. The included gaskets help maintain a tight seal during installation. With an overall length of 14.5 inches, this flexible hose is designed to match the original equipment specifications for the listed Infiniti models.

Applications and Common Issues Addressed

• Replacement of worn or cracked brake hydraulic hoses
• Resolving brake fluid leaks caused by damaged fittings or seals
• Restoring proper brake fluid pressure and pedal feel
• Addressing hose swelling or bulging under pressure
• Preventing brake system failure due to hose deterioration

Installation Notes and Tips

When installing the Dorman H621728 brake hydraulic hose, ensure the vehicle is securely lifted and supported. Carefully remove the old hose, noting the routing and fitting types. Use the included gaskets to prevent leaks and tighten fittings to manufacturer torque specifications. Avoid twisting or kinking the hose during installation to maintain flexibility and integrity. Bleed the brake system thoroughly after installation to remove air and restore proper brake function.

Quality Assurance and Warranty

Dorman brake hydraulic hoses are manufactured to meet or exceed OEM standards for fit, form, and function. The H621728 part undergoes rigorous quality control to ensure durability and reliability in demanding braking applications. This product includes a gasket for proper sealing and is backed by Dorman's limited warranty against defects in material and workmanship.