BJ-9004 Air Injection Check Valve

A car's check valve is like a "one-way switch": When fluid (air/exhaust gas) flows forward, the pressure pushes open the internal valve flap/reed, letting the fluid pass through smoothly. Once the fluid tries to flow in reverse, the reverse pressure shoves the valve flap back to its sealing position, and the valve closes automatically to block the backflow — this prevents equipment damage, pressure surges, or exhaust gas abnormalities.

Features  •   Automatic on-off, One-way conduction ,High adaptability

Benefits  •   Reduce the risk of damage to pipelines/engine components

•   No complex electrical control components and low failure rate

•   Aid in optimizing engine exhaust/intake efficiency 

• O.E.M Replace: 021131101E/022131101C/022131101E/1845923/YM219C491AC

Compatible Vehicles:

For   AUDI A3 2006-2007

For   AUDI TT 2004-2006

For   VOLKSWAGEN GOLF 1999-2005

For   VOLKSWAGEN JETTA 1999-2004

FAQ:

Q1:Are you a Manufacture Factory?

Yes,We have stable quality, stable supply, and on-time delivery

Q1: Can you provide samples?

Yes,We provide samples,

Q2: Can you produce based on the sample?

Yes, we can produce according to your samples or technical drawings

Q4:Can the product be printed with LOGO?

Yes,we can print the logo as your requirement.

Q5:What packaging does your product use？

The default packaging is a neutral cardboard box, and the packaging can also be customized according to your needs