The HPS Red Silicone Breather+Bypass Valve Hose Kit For 03-06 TT Golf 1.8T AWP MK4 sits in the Hoses & Fittings department here, stocked and fitment checked.

Petroleum contact requires the correct lining, so fuel and oil routing needs the right specification. Replace both the upper and lower runs while the system is open.
Shops order the hps red silicone breather from us in volume because the data on the page is accurate.
If your build is unusual, tell us and we will confirm the hps red silicone breather against it.
The hps red silicone breather ships protected, because a damaged part helps nobody.
Drivers choose the hps red silicone breather here for honest specification detail and quick dispatch.
Buyers comparing the hps red silicone breather will find the specification detail on this page rather than in a catalog footnote.
The hps red silicone breather listed here is checked against your vehicle before dispatch.
Every hps red silicone breather order goes through the same fitment review.
Key details
- Material: Silicone
- Finish: Red
- Category: Hose Kits
- Price: $169.29 with free shipping over $99
- Availability: in stock, dispatched from the USA
Manufacturer specifications
Unlike other breather hose kits on the market, 57-1934 features a specially developed fluoroelastomer layer that is able to withstand prolonged exposure to oil and fuel. HPS oil-resistant fluoroelastomer lined silicone hoses can provide superior resistance to the harshness of gasoline and automotive oils. The fluoroelastomer acts as a protective layer where the fluid flowing through the hose would typically degrade silicone hoses. With the fluoroelastomer liner, we can minimize permeation, evaporation, and degradation of our silicone hose.
HPS fluoroelastomer lined hose has excellent resistance to high temperatures, ozone, oxygen, mineral oil, synthetic hydraulic fluids, fuels, aromatics, and many organic solvents and chemicals. Fluoroelastomer can handle the occasional flow of ethanol based fuels.
- Material: 3-Ply Reinforced Silicone
- Color: Red
- Ideal replacement or upgrade for OEM or aftermarket parts
Breather Hose, Valve Cover (OEM part# 06A103221AN)
Boost Pressure Control Line (OEM part# 06A145712C)
- The premium grade high-heat resistance 3-ply reinforced silicone hoses are made with correct bends and curves to ensure a perfect fitment.
- Prevent and fix the coolant leaking and engine over heating problem caused by cracked, damaged or collapsed OEM rubber hoses. Made with correct bends and curves for perfect fitment.
- Race proven design with long lasting quality and engineered for extremely high temperature service (Max. 350F) and prolonged exposure to under-hood and coolant heat.
- Includes 100% stainless steel industrial grade embossed hose clamps which would not cut through the silicone hose.
Application:
For 2003-2006 Audi TT 1.8T Turbo Late AWP Engine
For 2003-2006 Volkswagen Golf 1.8T Turbo Late AWP Engine (MK4)
For 2004-2005 Volkswagen Jetta 1.8T Turbo Late AWP Engine
Remark:
Installation: Silicone hose water permeation rate is 10 to 15 times greater than standard EPDM rubber hose. Checking water level regularly is highly recommended when silicone coolant hoses are used in a daily driving vehicle.
Product Content:
- 1 Set x Breather + bypass valve (BPV) Hose Kit
Hardware if Any is Shown in the Picture Above
The product does not come with manual/instruction, Professional Install Recommended
Cross Reference Number:
- 57-1934-RED, 571934RED, 06A103221AN, 06A145712C
Fitment questions get answered by people who work with these parts daily, usually the same business day.
Customers also open: Hoses & Fittings · HPS Red Silicone Radiator Hose Kit For 99-01 Jeep Cherokee 4.0L (XJ) Right Hand Drive · HPS Blue Silicone Radiator Hose Kit For 99-01 Jeep Cherokee 4.0L (XJ) Right Hand Drive · full catalog
Dispatch is quick because the inventory is real, and you receive tracking the moment the label prints.
For safety and service guidance from outside the aftermarket, see the NHTSA vehicle safety hub.
Questions we get about this part
How do I confirm this fits?
We verify every doubtful order by hand. Give us the year, make, model and engine option and we will confirm compatibility in one reply.
Do you ship the same day?
Most orders dispatch within one business day. You receive tracking by email the moment the parcel is handed to the carrier.
What if it does not fit?
Contact support before removing or returning anything, so the right process starts on the first message and nothing is voided by accident.
Is this checked before shipping?
Lines and fittings are checked for pressure rating, inner diameter and ply count before shipping.
![HPS AN Male to Metric Adapter Fitting [Straight] [-6 to M22 x 1.5] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN816-06-X_pic1_1_84a0bab4-582d-4dc1-a176-6237879f811f-300x300.jpg)
![HPS Push-on Hose End to AN Female Fitting [120 Degree] [-10] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/150-120_1_2ac48160-6f50-4c53-8c37-0cf776a30fac-300x300.jpg)
![HPS AN Male to NPT Adapter Fitting [Straight] [-8 to 3/8 NPT] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN816-06-X_pic1_1_a94183bf-0c19-4e60-a94a-8eee322012ab-300x300.jpg)
![HPS AN Male to NPT Adapter Fitting [Straight] [-8 to 1/4 NPT] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN816-06-X_pic1_1_8fbe7cf9-52b7-41cb-9b7c-e7396fcd09ae-300x300.jpg)
Reviews
There are no reviews yet.