Dorman H621390 Brake Hydraulic Hose - Front Left or Front Right

Reliable Brake Hydraulic Hose for Audi and Volkswagen Vehicles

The Dorman H621390 brake hydraulic hose is designed to provide dependable brake fluid transfer for select Audi and Volkswagen models. Engineered with durable materials, this flexible hose ensures consistent braking performance for your Audi Q3, Q3 Quattro, Tiguan, and Tiguan Limited.

• Compatible with Audi Q3, Q3 Quattro, Volkswagen Tiguan, and Tiguan Limited
• Constructed with EPDM rubber hose material and black rubber outer sleeve
• Ends feature treated steel fittings: banjo fitting on one end and female fitting on the other
• Includes necessary gaskets for proper sealing
• Overall length of 23.19 inches with a 10 mm thread diameter on end 1

Durable Construction and Precise Fitment

This Dorman brake hydraulic hose (part number H621390) is built with EPDM rubber, known for its resistance to 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 feature treated steel fittings— a banjo fitting on one end and a female fitting on the other—ensuring secure connections within the brake system. The hose measures 23.19 inches in overall length, with a 10 mm thread diameter and M10 x 1.0 inside diameter fitting, designed specifically for the brake systems of Audi Q3, Q3 Quattro, Volkswagen Tiguan, and Tiguan Limited models.

Applications and Common Issues Addressed

• 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
• Eliminates brake fluid contamination from damaged hose materials
• Ensures safe and reliable braking performance on compatible Audi and Volkswagen vehicles

Installation Notes and Tips

Installation of the Dorman H621390 brake hydraulic hose requires basic mechanical skills and proper tools. Ensure the brake system is depressurized before removal. Use the included gaskets to achieve a secure, leak-free seal at the fittings. Verify hose routing matches the original to avoid kinks or interference with suspension components. Bleed the brake system thoroughly after installation to remove air and restore optimal brake function.

Quality Assurance and Warranty Information

Dorman manufactures this brake hydraulic hose to meet or exceed OEM specifications for fit, form, and function. The use of treated steel fittings and EPDM rubber materials supports long-term durability under typical operating conditions. This part includes a gasket for proper sealing and is backed by Dorman's limited warranty against defects in material and workmanship, providing confidence in its reliability for Audi Q3, Q3 Quattro, Volkswagen Tiguan, and Tiguan Limited brake system repairs.