Ignition harness for Bendix S-1200 series magnetos with 3/4-20 spark plugs.  Harness TCM part number 10-423684-5; alternate M-1740.

The harness is approved by the manufacturer for installation on S-1200 series Bendix mags with 3/4-20 spark plugs.  The magnetos can be found on 6-cylinder, 470 / 520 / 550 series Continental engines

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