An air motor assembly comprising: an air motor cylinder; an exhaust manifold extending at least partially around the air motor cylinder, the exhaust manifold having an exhaust inlet, an exhaust outlet, and an exhaust passage extending between the exhaust inlet and the exhaust outlet; and a control valve configured to provide motive fluid to the air motor cylinder and to receive exhaust fluid from the air motor cylinder, wherein the control valve includes an exhaust port in fluid communication with the exhaust passage; a first poppet valve mounted on a top of the air motor cylinder; and a second poppet valve mounted on a bottom of the air motor cylinder; wherein the first poppet valve comprises: a valve housing having a base flange and a valve receiving cylinder, wherein the base flange is attached to the top of the air motor cylinder; and a valve assembly disposed within and secured to the valve receiving cylinder, wherein the valve assembly includes a valve body, a valve member disposed within the valve body, and a rod extending from the valve member into the air motor cylinder; a first gasket disposed between the base flange and the top of the air motor cylinder; and a second gasket disposed on a side of the base flange opposite the first gasket; wherein a plurality of fasteners extend through the second gasket, the base flange, and the first gasket and into the air motor cylinder to secure the first poppet valve to the air motor cylinder; and wherein the valve body is secured within the valve receiving cylinder by interfaced threading; and the first poppet valve and the second poppet valve are fluidly connected to the control valve to control actuation of a shuttle of the control valve. an air motor cylinder; an exhaust manifold extending at least partially around the air motor cylinder, the exhaust manifold having an exhaust inlet, an exhaust outlet, and an exhaust passage extending between the exhaust inlet and the exhaust outlet; and a control valve configured to provide motive fluid to the air motor cylinder and to receive exhaust fluid from the air motor cylinder, wherein the control valve includes an exhaust port in fluid communication with the exhaust passage; a first poppet valve mounted on a top of the air motor cylinder; and a second poppet valve mounted on a bottom of the air motor cylinder; wherein the first poppet valve comprises: a valve housing having a base flange and a valve receiving cylinder, wherein the base flange is attached to the top of the air motor cylinder; and a valve assembly disposed within and secured to the valve receiving cylinder, wherein the valve assembly includes a valve body, a valve member disposed within the valve body, and a rod extending from the valve member into the air motor cylinder; a first gasket disposed between the base flange and the top of the air motor cylinder; and a second gasket disposed on a side of the base flange opposite the first gasket; wherein a plurality of fasteners extend through the second gasket, the base flange, and the first gasket and into the air motor cylinder to secure the first poppet valve to the air motor cylinder; and wherein the valve body is secured within the valve receiving cylinder by interfaced threading; and the first poppet valve and the second poppet valve are fluidly connected to the control valve to control actuation of a shuttle of the control valve. a valve housing having a base flange and a valve receiving cylinder, wherein the base flange is attached to the top of the air motor cylinder; and a valve assembly disposed within and secured to the valve receiving cylinder, wherein the valve assembly includes a valve body, a valve member disposed within the valve body, and a rod extending from the valve member into the air motor cylinder; a first gasket disposed between the base flange and the top of the air motor cylinder; and a second gasket disposed on a side of the base flange opposite the first gasket; wherein a plurality of fasteners extend through the second gasket, the base flange, and the first gasket and into the air motor cylinder to secure the first poppet valve to the air motor cylinder; and wherein the valve body is secured within the valve receiving cylinder by interfaced threading; and the first poppet valve and the second poppet valve are fluidly connected to the control valve to control actuation of a shuttle of the control valve.