106-1189 Crank position sensor hole plug

If you are running S&S crankcases on a 1984 through 1999 Evolution Big Twin and your setup does not require a crank position sensor, you need a clean way to seal that opening. This S&S crank position sensor hole plug is machined from high-quality billet aluminum for a perfect fit and a professional finish. It effectively plugs off the sensor hole, preventing oil leaks and keeping debris out of your bottom end. It is a small but essential detail for custom builds or ignition conversions where the stock sensor is no longer in use, maintaining the integrity and look of your S&S engine cases.