Dorman H620855 Brake Hydraulic Hose - Rear Left

Reliable Brake Hydraulic Hose for BMW Z4

The Dorman H620855 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.

• Compatible with BMW Z4 brake systems
• Flexible hose constructed from EPDM rubber for durability
• Black outer sleeve made of rubber for protection
• Ends feature treated steel fittings: male (10 mm thread) and female (M10 x 1.0)
• Overall length of 16.75 inches with 11.31 inches on axis 1
• Does not include mounting hardware, brackets, gaskets, or seals

Durable Construction and Precise Fitment

The Dorman H620855 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—male on one end and female on the other—ensuring a secure and leak-free connection within the brake system. With an overall length of 16.75 inches and a precise 10 mm thread diameter on the male fitting, this hose is engineered to meet the exact specifications required for BMW Z4 vehicles.

Common Applications and Problem Resolution

• Replacement for worn or cracked brake hydraulic hoses on BMW Z4
• Addresses brake fluid leaks caused by damaged fittings or hose material
• Restores proper brake fluid pressure and pedal feel
• Prevents brake system failure due to hose deterioration
• Ensures safe and reliable braking performance

Installation Notes and Tips

When installing the Dorman H620855 brake hydraulic hose, ensure the brake system is fully depressurized and the vehicle is securely lifted. Use appropriate tools to remove the old hose fittings carefully to avoid damage to brake lines. Since mounting hardware and brackets are not included, reuse existing components or source compatible parts separately. After installation, bleed the brake system thoroughly to remove air and verify there are no leaks at the fittings.

Quality Assurance and Warranty

Dorman manufactures the H620855 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 long-term durability under typical operating conditions. While specific warranty details are not provided, Dorman products generally come with a limited warranty against defects in material and workmanship, ensuring confidence in your replacement part.