Dorman H621711 Brake Hydraulic Hose - Front Left or Front Right

Overview of Dorman Brake Hydraulic Hose H621711

The Dorman brake hydraulic hose H621711 is designed for reliable brake fluid transfer in select BMW models. This flexible brake hose ensures consistent braking performance and is engineered to meet the specific requirements of vehicles like the BMW 528i, 535i, 550i, and 740Li series.

• Compatible with multiple BMW models including 528i, 535i, 550i, 640i, 740Li, and ActiveHybrid series
• Durable EPDM rubber hose material with a protective rubber outer sleeve
• Flexible hose design with treated steel fittings (male and female) for secure connections
• Overall length of 28.6 inches with M10 x 1.0 thread diameter fittings
• Includes a protective jacket for added durability and resistance to wear

Detailed Product Description

The Dorman H621711 brake hydraulic hose is constructed from EPDM rubber, known for its resistance to heat, ozone, and brake fluid degradation. The black rubber outer sleeve provides additional protection against environmental factors and abrasion. This flexible hose features treated steel fittings on both ends—male on one side and female on the other—each with an M10 x 1.0 thread diameter to ensure a precise and secure fit. The hose measures 28.6 inches in overall length, with an axis length of 26.68 inches, making it suitable for direct replacement on compatible BMW models.

Compatible BMW Models and Applications

• BMW 528i and 528i xDrive
• BMW 535d, 535d xDrive, 535i, 535i GT, 535i GT xDrive, 535i xDrive
• BMW 550i, 550i GT, 550i GT xDrive, 550i xDrive
• BMW 640i, 640i Gran Coupe, 640i xDrive, 640i xDrive Gran Coupe
• BMW 650i, 650i Gran Coupe, 650i xDrive, 650i xDrive Gran Coupe
• BMW 740i, 740Ld xDrive, 740Li, 740Li xDrive
• BMW 750i, 750i xDrive, 750Li, 750Li xDrive
• BMW 760Li and ActiveHybrid 5 and 7

Common Issues Addressed by This Brake Hose

• Brake fluid leaks caused by cracked or worn hoses
• Reduced brake responsiveness due to hose swelling or damage
• Corrosion or damage to fittings leading to brake system failure
• Hose deterioration from exposure to heat and road debris
• Replacement of original equipment worn brake hydraulic lines

Installation Notes and Tips

• Ensure the vehicle is securely lifted and supported before beginning installation
• Bleed the brake system thoroughly after hose replacement to remove air
• Inspect fittings and mounting points for corrosion or damage prior to installation
• Do not reuse old mounting hardware; this hose does not include mounting brackets or hardware
• Verify hose routing matches original to avoid kinks or interference

Quality Assurance and Warranty

Dorman manufactures the H621711 brake hydraulic hose to meet or exceed OEM specifications for fit, form, and function. The EPDM rubber and treated steel fittings provide durability and resistance to common brake system contaminants. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship to ensure product reliability.