The Muncie 48T38051 is the Manual Air Activation Kit designed for the MSV16-D Power Take-Off. Identified in Muncie’s own service-parts documentation (SP96-02) as the Manual Air Activation Kit for MSV-series PTO units, this is the correct activation kit when manual air shift operation is required on compatible MSV applications. Sold individually as a complete kit. Pro Gear and Transmission carries genuine Muncie service parts. Call us to confirm proper fit for your specific PTO installation.Interchanges:XSMU48T38051FeaturesManual air activation configuration for MSV-series PTOGenuine Muncie service part per SP96-02 documentationDesigned for MSV16-D Power Take-Off unitsSold as a complete activation kit, each