034 Motorsport Breather Hose Kit

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Product Information

This complete silicone hose kit is designed to replace all of the crumbling plastic and rubber awfulness that is the factory breather hose system.

Fits 2003 B6 Audi A4 1.8T models with the AMB engine code in VIN range 8E-3-040000 > 8E-3-500000, and 2003 - 2005 Volkswagen Passat 1.8T models with the AWM engine code.

Includes all hardware needed to retrofit to a much simpler and more reliable breather system design.

Replaces the following factory parts:

  • Valve Cover Breather Hose - (06B 103 221F)
  • Check Valve to Intake Manifold Hose - (06B 103 224C)
  • T-Hose - (06A 103 247)
  • Block Breather Tube - (06A 103 213AM)
  • Valve Cover Breather Tube - (06B 103 213AK)
  • PCV Valve  (06B 103 245) (Upgraded to the 034Motorsport Billet PCV Valve.)


Features a billet aluminum block breather adapter with an o-ring seal that utlizes the factory retaining clip, and cap/plug to eliminate/bypass the auxiliary check valve hose.


  • 2003 Audi A4 (B6) - In VIN range 8E-3-040000 > 8E-3-500000
    • 1.8T - AMB 
  • 2003 - 2005 Volkswagen Passat (B5.5)
    • 1.8T - AWM


Sold as a complete kit, available in black only.

Hose clamps included!

Brand: 034 Motorsport
Product Code: 034-101-3004
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