turbog8r

Hey Guys,

I have a 97 12 valve cummins swapped into a 2003 Yukon XL. I'd like to keep as much of the factory cluster working as possible so I'm trying to use the GM oil pressure sender from the 6.0 that was in it. The threads look to be 5/8-18 or M16x1.5...could someone confirm which threads they are? I need to adapt this to a 1/8 NPT thread to mount to the cummins oil pressure port.

Is there a different GM sender with a smaller thread that will provide the same voltage / psi as the sender I have now?

My alternative is to take a 3/4 NPT plug, drill and tap the M16 or 5/8 threads (1/2 NPT plug would only have .050" wall thickness after threading), then take 2 to 3 adaptors to get it down to 1/8 NPT...I'd rather avoid the laughs I'll get when I pop the hood and people see a tower of NPT adaptors.


Thanks!

turbog8r

Project GatTagO

iTrader: (7)

There is a lot of meat on the GM senders and they are aluminum. It would be pretty easy to turn it down and use a die to male 1/8" NPT threads. Or you can just use any universal senders. The 3 wire 5v senders all have linear output curves. Like this:



Andrew

turbog8r

Thanks for the response Andrew. I may end up turning and threading the GM sender. I read on the yellowbullet forum a post that says the GM sender has a different voltage / psi relation than the link you posted. LS1 oil pressure sender is .5v = 0psi and 4.5v = 130psi. The link you put up shows 0 and 100psi for those voltages. Is this other post wrong? Or does the 6.0 have a different sensor?

76larkman

I bought adaptor on ebay for like $12.00. Look in Ls swap parts

Project GatTagO

iTrader: (7)

The link is for a universal pressure transducer. They come in all sorts of psi ratings. I only suggested it because it has a 1/8" NPT fitting on it. If you need to go higher than 100psi then you can get a 200psi transducer.

Andrew

Project GatTagO

iTrader: (7)

I don't think they make a 16MM to 1/8" NPT adapter.

Andrew

turbog8r

If I get a random voltage/psi range, then the gauge on the GM instrument cluster won't be right...right? I'm planning on turning and re-threading the carquest oem replacement sensor I have...hopefully it doesn't void the lifetime warranty it has.

66Chevellelq4

You can be posting about a 12 valve swapped yukon without pics. Un-American.

jonathan_ed3

iTrader: (4)

Autometer #2268 = 16x1.5mm male to 1/8NPT female adatper (plus thousands of chinese clones all over the internet)

tfi racing

iTrader: (2)

OP needs to go the opposite direction-needs his GM sender to screw into a 1/8" hole...

CBM Motorsports

iTrader: (2)

We make an adapter that goes from 16mm down to a -4an. After that, use a -4an to 1/8 NPT and you are good to go! We normally use them to add in a fuel PSI sender on the factory fuel rails.