The Gates PCV valve for 2005–2010 Ford Mustang with the 4.0L V6 is a replacement crankcase vent valve intended for that engine application. It vents blow-by gases and helps maintain correct crankcase pressure; replacing a worn or leaking valve restores the ventilation path and supports consistent engine breathing and operation across the applicable Mustang model years.
Gates 05-10 Ford Mustang V-6 4.0L PCV Valve Crankcase Vent Valves