Review on Original Engine Management Oil Pressure Switch 80021 by Jermall Meredith

Product works. Fast delivery. The device has a 15/16" hex, but the housing in front of the hex does not allow a 15/16" deep socket to be placed on it. I used a 1" deep socket, but tightened the last part with an open-end wrench. Make sure you have teflon thread tape. A small amount of oil will spill, so be prepared to catch it. 15 minutes of work, though even though I worked as a professional mechanic on a 2006 Nissan Xterra 4X4 OffRoad, the installation involved all sorts of standard things and it was still easy.