034Motorsport PCV Check Valve for 1.8T & 2.7T
The 034 Check Valve is a spring-loaded, ball-style unit engineered for easy bolt-on installation. Designed for use with Audi AAN I5 20VT, Audi/Seat/VW 1.8T, Audi 2.7T, and other compatible engines, it features a CNC-machined billet aluminum housing with a stainless steel ball and spring.
It can also be applied universally wherever pressure needs to be blocked from a specific hose or chamber. The pressure side includes a 1/2" nipple, while the vacuum side measures 1" OD, making it suitable for applications up to 100 PSI or higher.