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Primarily designed to be connected directly to MaxxECU, but obviously work with other systems aswell.
6.35mm thickness of the sensor.

For tapered thread compression fitting to the stainless steel bung: about 2.5 turns to finger tight, then 3/4 of a wrench turn.
For tapered thread compression fitting to the mild steel bung: about 3.25 turn to finger tight, then 1 wrench turn.

What is important is that the threads do not leak. If the fitting is overtightened with a wrench the fitting will be impossible to remove. It is important that the fitting is not overtightened.