I need to replace the Hobbs switch on my STS PCV system. I have searched around a little but don't seem to be able to find a supplier of a 1 psi switch. Can someone help me out with a source for a Hobbs switch factory set to 1 psi?

Thanks, I hope.

 

I got some miniature pressure switches from ebay for around $15 each. They set them at the psi you request, I asked for 1 psi. I am not sure what brand they are. If you need Hobbs brand, I don't know where to send you.

 

Are Hobbs the best?

 

Not sure if Hobbs is the best or not. It is what comes with STS so makes it a direct replacement. Hobbs seems to owned by Honeywell now.

Do those miniature switch have 1/8 npt 27.

I think I found one on ebay that the vendor will set as required. Seller says to beware of cheap imitations.

 

I got mine from atpturbo, it's fully adjustable. under 40 bucks shipped.
It's still on my truck even though I'm not using it anymore. Let me know if you can't find one I'll sell it.

 

Thanks Raffman - I just got one for $25 shipped on ebay.

 

Napa has them just ask for a hobbs switch they have 2 kinds, always on until pressurized or always off and switched on by pressure. Also they come in different pressure settings I use 1-4psi activation.