MX5 PCV Valve for Crankcase Ventilation

A PCV valve for crankcase ventilation for your Mazda MX-5 NC (2005–2015), compatible with the 1.8L and 2.0L engines.

This valve ensures that unburned gasoline is recirculated back into the intake manifold so it can be reused. Piston rings never seal 100%, so a small amount of unburned fuel always remains. Thanks to this valve, that fuel is reused, contributing to more efficient combustion.

A defective valve can lead to incorrect pressure ratios in the engine, which can cause problems such as increased fuel consumption, loss of power, and irregular engine performance.