I'm replacing my vibration isolators on the aux air compressor, along with the Square D pressure switch. I purchased what I believe is the correct part (9013FHG2J27X) but the new switch has an air port, unlike the original. So is this not the correct part or is there something I'm missing?
Pics included
Looks like the one you got has an unloader. It has cut in pressure of 80 psi and cut out of 100 psi. Those pressures are low for my coach but these units have where you can change the cut in and the cut out pressures. It will work, but if not too much trouble you could return.
Looking at the Square D 9013 catalog https://www.grainger.com/ec/pdf/6B452_2.pdf page 22, the "X" at the end on the new part indicates a 2-way pressure relief valve, so they are not identical.
James, This should be the one you need:
Telemecanique Sensors 9013FHG2J27 Air-Compressor Pressure Switch, 100 Psi... (https://www.amazon.com/Square-Schneider-Electric-9013FHG2J27-Air-Compressor/dp/B000CCJ6QK/ref=sr_1_1?crid=2BCBOLEU85G4D&dib=eyJ2IjoiMSJ9.SE_xtEwqZjy9JPyQFx3ZVm9nJEX9QjY0vZxp51ksuW3jiM6mnHPwAp1epq6nI3ArLs8Fju3qQxBj0YBrhEWnN-ZllNB55LwaftXHPcGop1faiVxxHcB2GwZPmyEZ1JRviJZnOytfIfsQeNU_BiXIKAGKDbVrRQ2bxcqniKdsHRb0MGsxaGjeSiOTVjuSApcwWsdB1Oj7e-iIq8qZyg6z_0AButpt6ibd0DZAPLUKpjE.tgWpS4FUAFLSe5fbX3yq7OOyiT-CYXtLpyXNYcIVlR0&dib_tag=se&keywords=9013fhg2j27&qid=1709343870&sprefix=9013fhg2j27%2Caps%2C215&sr=8-1)