Delivery of the part was prompt & undamaged. The pressure switch is of the same quality and construction as the one it supposed to replace so, 5 stars for that. However, E105176 - Is a shared part no. with Porter-Cable but it will not work as configured. 1)On the bottom is the "4-way Air distributor" that is 180 degrees out of orientation w/ Porter-Cable design. 2)The fitting which connects the 1/4" diameter copper "Relief Tube" is a Straight up tube joint instead of a Right angle tube joint. This makes the existing copper tube too short to connect and the connections to out of phase air distributor forces the switch to installed upside down from it's original position if it were possible to assemble that way. It is not possible to install it as received. I am choosing to Modify the new assembly by making the changes myself. Trickiest part is reassembly due to spring forces from multiple parts simultaneously screwing it back together. I can reuse the Right angle relief tube connection or replace the copper tubing with a new longer piece of tubing until it reaches. Keep as short as possible. Not very satisfied. Regret buying this Porter-Cable to begin with. Too noisy.
