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  • Buzz Coils Rx
  • Battery/Distributor RX
  • Magneto Rx:
  • Plug, Wire, Condenser RX
  • Testing 101
  • Magneto and Vintage Tech Store

    • Shop by Brand

  • American Bosch
  • Fairbanks Morse
  • Wico
  • Helicoil and compatibles
  • Snapon
  • Briggs and Stratton
  • Edison Splitdorf
  • Bosch
  • Craftsman
  • Crosby
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    • CM-4 Caterpillar Magneto Service + Parts Manual

    Here is soem factory parts and servuce for the Eisemann model CM-4 magneto used by Caterpillar on their early gas powered crawlers and power units. These are a later version of the CT-4 with an improved rotating magnet design. Like the previous they are extremely hot and very robust.  Many tractors still on the job have their original magnetos. At the end is a parts list for a model CM-6 for heavy duty 6 cylinder service. This could have been a replacement for the Holt 120? 

     

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