Fitment: Fit for parker chelsea 2 position 3 way system, which can be used for Freightliner International Kenworth Mack Volvo Peterbilt Trucks.
Function: This air control valve can control over PTO engagement/disengagement via air supply, spring loaded lockout safety knob preventing unintentional lever movement.
High Quality: The PTO air control valve is made of high quality metal, which is durable and reliable for long service life.