I had to replace my Tacho sensor, Couldn't get one anywhere.. I purchased this one with freight about AU$120
This one was just a couple of threads too short for my application, 3300A solid lifter engine. But as the threat in the mounting bracket was damaged, I drilled it out and used the locking nuts to secure it in place. I had to counter sink the top nut so to get enough depth.
So all in all worked out well and Tacho is now working.
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