t a  e 
REF NO. Part categories Parameter
GM GENUINE : 8642478 Servo Piston
  • Materials: Cast Aluminum with Graphite/Teflon Seal ; 
  • Piston Height (IN): .491 ; 
  • Piston Height (MM): 12.46 ; 
  • Rotor Outside Diameter (IN): 2.890 ; 
  • Rotor Outside Diameter (MM): 73.4 ; 
TRANSGO : 72P Servo Piston
  • Installation Note: Transmission Removal Not Required ; 
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    Size/Parameters

    Annotated Parameter name Size range Unit
        

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