Dorman H621170 Brake Hydraulic Hose - Rear Left or Rear Right

Durable Brake Hydraulic Hose for Mercedes-Benz Models

The Dorman H621170 brake hydraulic hose is designed to provide reliable brake fluid transfer for select Mercedes-Benz vehicles. Engineered with quality materials, this flexible hose ensures consistent performance and safety for your braking system.

• Compatible with Mercedes-Benz GL320, GL350, GL450, GL550, ML63 AMG, ML320, ML350, ML450, ML500, and ML550 models
• Overall length of 24.9 inches for precise fitment
• Constructed with EPDM rubber hose material and a black rubber outer sleeve
• Ends feature treated steel fittings: male fitting with 10 mm thread diameter and female fitting with M10 x 1.0 inside diameter
• Flexible hose design for ease of installation and durability under pressure

Product Details and Specifications

The Dorman H621170 brake hydraulic hose is built with an EPDM rubber hose core, known for its resistance to 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 fittings—male on one end and female on the other—ensuring secure connections within the brake system. The hose measures 24.9 inches in length, matching the original equipment specifications for the listed Mercedes-Benz models. This part does not include mounting hardware, brackets, gaskets, or seals, so those components must be reused or sourced separately.

Common Applications and Problem Resolution

• Replaces worn or cracked brake hydraulic hoses causing fluid leaks
• Restores proper brake fluid pressure and pedal feel
• Prevents brake system failure due to hose deterioration
• Addresses issues with brake fluid contamination or hose swelling
• Ensures safe braking performance on Mercedes-Benz GL and ML series vehicles

Installation Notes and Tips

Before installation, verify compatibility with your specific Mercedes-Benz model and year. Carefully remove the old brake hose, taking care to avoid brake fluid spills. Use appropriate tools to disconnect the treated steel fittings, noting the male and female ends for correct orientation. Inspect and replace any worn mounting hardware or seals as needed, since these are not included. After installation, bleed the brake system thoroughly to remove air and ensure optimal brake performance.

Quality Assurance and Warranty Information

Dorman manufactures the H621170 brake hydraulic hose to meet or exceed OEM standards for fit, form, and function. The use of EPDM rubber and treated steel fittings supports durability and corrosion resistance. While specific warranty details are not provided here, Dorman typically offers limited warranties on their replacement parts to cover defects in materials and workmanship.