Wilwood 221-17415 Flexline Rear Brake Hose Kit for 1996–2009 Audi A4

The Wilwood 221-17415 Flexline Kit is a rear brake hose replacement designed for 1996–2009 Audi A4 applications. This pair of DOT-approved brake hoses provides a dependable connection between the vehicle’s brake system components while supporting consistent hydraulic performance and reliable braking operation. Each hose features a black rubber-coated exterior for added protection in demanding underbody environments.
The kit uses 3 AN hose construction with a 3 AN female inlet and a 12 mm x 1.0 banjo outlet to support application-specific installation. The banjo-style connection is designed to align with the factory rear brake setup, helping provide a secure fit when replacing worn, damaged, or aging flexible brake lines. Included washers help complete the installation and support proper sealing at the banjo connection.
Wilwood part number 221-17415 is a practical solution for restoring rear brake hose performance on compatible Audi A4 models. The flexible hose design accommodates normal suspension and wheel movement while maintaining a durable fluid connection. Verify vehicle year, brake configuration, and fitting requirements before installation, and follow the vehicle manufacturer’s recommended procedures for brake system service. Professional installation and a complete brake system inspection are recommended after replacement.

Features:

• Application: Rear brake hose kit for 1996–2009 Audi A4 models

• Kit Contents: Includes a pair of Flexline brake hoses

• Certification: DOT approved for dependable brake system service

• Hose Design: 3 AN hose with black rubber-coated protection

• Inlet Fitting: 3 AN female inlet

• Outlet Fitting: 12 mm x 1.0 banjo outlet

• Installation Hardware: Washers included for the banjo connections

• Brand: Wilwood

• Part Number: 221-17415