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HP Miscellaneous

Refresher Kit

Part No.


Refresher Kit
  • Refresher Kit


HP Miscellaneous

Refresher Kit

Part No. GM-MD-RK

  • Struts (5)
  • Springs (5)
  • Retaining Ring

Sonnax mechanical diode refresher kit GM-MD-RK is used to service Sonnax mechanical diodes with five-strut engagements.

Mechanical Diodes®

This unique design for a one-way clutch assembly known as the "Mechanical Diode®" (MD) was developed by Epilogics, Inc. in 1991 and was first introduced to torque converter rebuilders by Sonnax in 1997. The MD overrunning clutch, or freewheel, offers much greater strength than existing roller-ramps and sprags.

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