Dorman H620856 Brake Hydraulic Hose - Rear Right

Reliable Brake Hydraulic Hose for BMW Z4

The Dorman H620856 brake hydraulic hose is designed specifically for BMW Z4 models, providing a durable and flexible connection within your vehicle's braking system. Engineered with quality materials, this hose ensures consistent brake fluid flow and reliable performance under various driving conditions.

• Compatible with BMW Z4 brake systems
• Constructed with EPDM rubber hose material for flexibility and durability
• Black outer sleeve made of rubber for protection against wear
• Ends feature treated steel fittings: male (End 1) and female (End 2)
• Overall length of 16.75 inches with 11.31 inches axis length
• End 1 thread diameter: 10 mm; End 2 fitting inside diameter: M10 x 1.0
• Flexible hose design for ease of installation and reliable brake fluid transfer

Product Details and Specifications

The Dorman H620856 brake hydraulic hose is a flexible hose designed to replace worn or damaged brake lines on BMW Z4 vehicles. Its EPDM rubber construction offers resistance to heat, ozone, and brake fluid, ensuring long-lasting service life. The black rubber outer sleeve provides additional 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 and leak-free connections. The hose measures 16.75 inches in overall length, with an axis length of 11.31 inches, making it suitable for precise fitment in the BMW Z4 brake system.

Common Applications and Issues Addressed

• Replacement of cracked or leaking brake hydraulic hoses
• Restoring proper brake fluid pressure and flow
• Eliminating brake fluid leaks that cause reduced braking efficiency
• Addressing hose wear due to heat, abrasion, or age
• Ensuring safe and reliable brake system operation

Installation Notes and Tips

Installation of the Dorman H620856 brake hydraulic hose requires basic mechanical skills and proper tools. Before installation, ensure the vehicle is securely lifted and the brake system is depressurized. Carefully remove the old hose fittings and avoid contaminating the brake fluid. Use the correct torque specifications when tightening the treated steel fittings to prevent leaks. Bleed the brake system thoroughly after installation to remove air and restore proper brake function. Note that mounting hardware and brackets are not included with this hose and may need to be reused or replaced separately.

Quality Assurance and Warranty

Dorman manufactures the H620856 brake hydraulic hose to meet or exceed OEM standards for fit, form, and function. The use of EPDM rubber and treated steel fittings ensures durability and resistance to common brake system stresses. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in material and workmanship. For optimal safety and performance, always verify compatibility with your BMW Z4 model and inspect the hose regularly for signs of wear or damage.