Twindisc sp321

Palmer Johnson Power Systems is North America’s leading Twin Disc distributor with over 40 years of experience servicing the Twin Disc product line. We have an expansive inventory of replacement parts and complete units for the SP321P series PTO’s. In addition to our inventory, we have product experts that can troubleshoot your issues and offer sound solutions as well as factory trained technicians that can repair your PTO and get you back up and running quick. No matter the need for your SP321P power take-off, we are here to help. Contact us today!

The SP321P series PTO is suitable for both inline and side load applications. The SP321P (SP321, SP321P9, SP321P00) power take-off is used in a wide array of applications with the most common being sand dredges, irrigation pumps, crane & hoisting, metal shredders, recycling equipment, jaw crushers, and compressors.


Key Features

  • Tapered roller main bearings
  • Optional sintered iron plates
  • Optional ball bearing throw out
  • Built-in hex nut
  • Creates suitable application torque capacity
  • More suitable for side load applications
  • Allows for more frequent engagements
  • Creates 25% higher torque capacity
  • Eases adjustment verification

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Active Twin Disc BOM & Assembly Numbers: SP321P903, SP321P904, SP321P905, SP321P908, SP321P909, SP321P910

Legacy Twin Disc BOM & Assembly Numbers: SP321P901, SP321P902, SP321P906, SP321P907

OEM Assembly Numbers:

  • SP321P903 equals CAT P/N 2W-4918, 2W4918
  • SP321P904 equals CAT P/N 2N-7080, 2N7080
  • SP321C001 equals Cotta P/N 80VX567
  • SP321C003 equals Cotta P/N 80VX1020

Maximum Input Torque (lb-ft) Class I - 6730

Clutch Maximum HP Rating

  • Class II - 1270
  • Class III - 847
  • Class IV - 635
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