Dorman H381290 Brake Hydraulic Hose - Rear Left or Rear Right

Reliable Brake Hydraulic Hose for Lexus GS and SC Models

The Dorman H381290 brake hydraulic hose is designed to provide dependable brake fluid transfer for select Lexus vehicles. Engineered with durable materials, this flexible brake hose ensures consistent performance and safety for your Lexus GS300, GS400, GS430, and SC430 models.

• Compatible with Lexus GS300, GS400, GS430, and SC430
• Flexible hose constructed from EPDM rubber for durability
• Black outer sleeve made of rubber for protection
• Ends feature treated steel fittings: banjo fitting on one end and female fitting on the other
• Includes gaskets for secure sealing
• Overall length of 15 inches for precise fitment

Durable Construction and Precise Fitment

The Dorman H381290 brake hydraulic hose features a flexible EPDM rubber hose material that resists 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 are equipped with 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. This hose comes with the necessary gaskets to maintain a tight seal during installation. With an overall length of 15 inches, it is designed specifically for the brake systems of Lexus GS300, GS400, GS430, and SC430 models, providing a direct replacement that meets OEM specifications.

Applications and Common Issues Addressed

• Replacement of worn or cracked brake hydraulic hoses
• Resolving brake fluid leaks caused by damaged fittings or hose material
• Restoring proper brake pressure and pedal feel
• Preventing brake system failure due to hose deterioration
• Maintaining brake system integrity for Lexus GS and SC series vehicles

Installation Notes and Tips

When installing the Dorman H381290 brake hydraulic hose, ensure the vehicle is securely lifted and supported. Carefully remove the old hose, noting the orientation of fittings. Use the included gaskets to prevent leaks and tighten fittings to manufacturer torque specifications. Avoid twisting or stretching the hose during installation to maintain hose 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 industry standards for safety and durability. The H381290 part number undergoes rigorous quality control to ensure reliable performance in demanding conditions. This product includes a limited warranty against defects in materials and workmanship, providing confidence in its long-term use on compatible Lexus GS300, GS400, GS430, and SC430 vehicles.