I am trying to use the tachometer from a 1988 9670 for something with 132 flywheel teeth
The back of the gauge has 10 binary switches but I don’t have the codes that go with it
All I know is it’s currently set for 113 teeth (was used with a 3406 cat)
9670 tach codes
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by W923, Jun 8, 2025.
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