Dorman H123781 Brake Hydraulic Hose - Rear Left or Rear Right

Reliable Brake Hydraulic Hose for Jaguar Vanden Plas and XJ Series

The Dorman H123781 brake hydraulic hose is designed to provide dependable brake fluid transfer for select Jaguar models. Engineered with durable materials, this flexible hose ensures consistent braking performance for your Jaguar Vanden Plas, XJ6, XJ12, and XJRS vehicles.

• Compatible with Jaguar Vanden Plas, XJ6, XJ12, and XJRS models
• Overall length of 13.13 inches for precise fitment
• Flexible EPDM rubber hose with black outer sleeve
• Male treated steel fittings on both ends with M10 x 1.0 thread diameter
• No mounting hardware, brackets, or gaskets included

Durable Construction and Precise Fitment

This Dorman brake hydraulic hose (part number H123781) features a flexible EPDM rubber hose material that resists heat, ozone, and brake fluid degradation. The black rubber outer sleeve adds protection against abrasion and environmental exposure. Both ends are equipped with male treated steel fittings, sized at 10 mm thread diameter and M10 x 1.0 inside diameter, ensuring secure connections within the brake system. With an overall length of 13.13 inches, this hose is tailored for proper installation on Jaguar Vanden Plas, XJ6, XJ12, and XJRS models, maintaining factory specifications.

Common Applications and Problem Resolution

• Replaces worn or cracked brake hydraulic hoses causing fluid leaks
• Restores proper brake fluid pressure and pedal feel
• Eliminates brake system soft spots due to hose deterioration
• Prevents brake fluid contamination from damaged outer sleeves
• Ensures safe and reliable braking performance on Jaguar Vanden Plas and XJ series vehicles

Installation Notes and Tips

Installation of the Dorman H123781 brake hydraulic hose requires basic brake system knowledge and tools. Before installation, ensure the vehicle is securely lifted and supported. Carefully remove the old hose, avoiding damage to fittings and brake lines. Clean the connection points and verify thread compatibility. Since mounting hardware and brackets are not included, reuse existing components or source replacements as needed. After installation, bleed the brake system thoroughly to remove air and verify proper brake function.

Quality Assurance and Warranty Information

Dorman manufactures the H123781 brake hydraulic hose to meet or exceed OEM standards for fit, form, and function. The use of treated steel fittings and EPDM rubber hose material supports durability and corrosion resistance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship to provide confidence in product reliability.