The Chief GP-PTO model is a hydraulic gear pump designed for use on a tractor's Power Take-off (PTO). This line is offered in four displacement sizes, from 3.41 to 9.76in3/rev (56-160cm3/rev).

The recommended working conditions are as follows:

• Filtration: 25 microns or better
• Inlet pressure 12 to 32 psi absolute
• Oil Viscosity: 6 to 200 cSt
• Ambient Temperature: -8 to 130°F (-22 to 55°C)
• Oil Temperature:  -12 to 175°F (-25 to 80°C)

Model Specific Information:

• Model: GP-PTO-21-540C
• Cast iron body
• GPM: 21 (@rated speed)
• CID: 9.76
• Ports: SAE-16/12
• Shaft: 1 3/8" Female spline, 6 tooth
• Rotation: Counterclockwise