Wilwood 221-17398 is an OEM Performance rear brake hose kit for 2009-2016 Audi A4, supplied as a pair of hoses. It is a one-piece stainless steel braided -3 Flexline design made for direct fit on specific OEM applications, with the correct chassis and caliper fittings built in. A clear anti-chafing coating covers the hose to prevent wear. Braided lines reduce compliance in the brake system for a firmer pedal response compared with rubber hoses.
Notes:
- Older Motor State listing data named a 09-16 Mitsubishi Lancer for this part number. The Wilwood application is the 2009-2016 Audi A4 rear.
Specifications:
- Brand: Wilwood
- Part Number: 221-17398
- Application: Rear,Audi A4 2009-2016
- Kit Notes: FLEXLINE KIT,REAR,AUDI A4 2009-2016
- Line Type: OEM Performance Flexline Kit
- Size: -3
- Weight (lb): 0.70
- Qty Each: 1
- Qty per Kit: 2
FAQ
What does Wilwood 221-17398 fit?
It is a rear brake hose kit for 2009-2016 Audi A4.
How many hoses are in the kit?
The kit contains two -3 stainless steel braided hoses.
Do I need separate fittings?
No. The hoses are a one-piece design with the correct chassis and caliper fittings for the listed application.
What is the clear coating on the hose?
It is an anti-chafing coating over the stainless steel braid that helps prevent wear.

