I’m SO GLAD that I was able to find this CRUCIAL unit that IS ESSENTIAL for the operation of the Milwaukee Sawzall! I was VERY fortunate in discovering the Sawzall unit by Milwaukee that I rescued from the trash (of the Company I was employed with at the time). Once I diagnosed the malfunctioning part, I reported it to my boss. He laughed and told me that he had already bought a new one for its replacement. So, I ordered this unit & installed it as soon as it arrived….. haven’t been that happy nor excited as much as I was after installing it & finished putting the Sawzall back together, making sure that EVERYTHING was routed correctly. Lastly, my wife said the look on my face was filled with anticipation, not to mention the obvious squint as I stood there and pulled the trigger as if it was to explode on me. It worked and hasn’t stopped working since I repaired it. Thanks so much!!!