Dorman H621054 Brake Hydraulic Hose - Rear Left or Rear Right

Reliable Brake Hydraulic Hose for Lexus GS Models

The Dorman H621054 brake hydraulic hose is designed to provide dependable brake fluid transfer for Lexus GS300, GS350, GS430, GS450h, and GS460 vehicles. Engineered with durable materials, this flexible hose ensures consistent braking performance under various driving conditions.

• Compatible with Lexus GS300, GS350, GS430, GS450h, and GS460 models
• Constructed with EPDM rubber hose material and a black rubber outer sleeve
• Features treated steel fittings: banjo type on one end and female fitting on the other
• Includes necessary gaskets for secure sealing
• Overall length of 15.31 inches with a flexible design for easy routing

Durable Construction and Precise Fit

This Dorman brake hydraulic hose (part number H621054) 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 feature treated steel fittings— a 10 mm banjo fitting on one end and a female M10 x 1.0 fitting on the other—ensuring a secure and leak-free connection. The hose measures 14.38 inches on axis 1 length and 15.31 inches overall, designed to match the original equipment specifications for Lexus GS series vehicles.

Applications and Problem Resolution

• Replaces worn or cracked brake hydraulic hoses causing brake fluid leaks
• Restores proper brake pressure and pedal feel in Lexus GS300, GS350, GS430, GS450h, and GS460
• Prevents brake system failure due to hose deterioration or damage
• Addresses issues related to hose swelling or hardening from heat exposure
• Ensures safe and reliable brake fluid transfer for optimal braking performance

Installation Notes and Tips

Installation of the Dorman H621054 brake hydraulic hose requires basic brake system knowledge and tools. Before installation, ensure the brake system is depressurized and fluid is drained to avoid spills. The included gaskets must be used to prevent leaks at the banjo fitting connection. Since mounting hardware and brackets are not included, reuse the original components or source compatible parts. After installation, bleed the brake system thoroughly to remove air and verify proper brake function.

Quality Assurance and Warranty

Dorman manufactures this brake hydraulic hose to meet or exceed OEM standards for fit, form, and function. The use of treated steel fittings and EPDM rubber materials supports durability and corrosion resistance. This part is backed by Dorman's limited warranty, providing coverage against defects in material and workmanship under normal use conditions.