I have answered this a few times now. From memory the Toyota/Nissan/Mitsubishi oil fitting is 1/8" BST 28tpi. The aftermarket oil pressure sensor is 1/8" NPT 27tpi.
Please seach and see if I got it right. It could be the other way around.
hello l was wondering if any1 no's what the thread size is on 4ac oil pressure so l can buy correct adaptor for my aftermarkey guage. Thanx
Blacktop 7age reppin
I have answered this a few times now. From memory the Toyota/Nissan/Mitsubishi oil fitting is 1/8" BST 28tpi. The aftermarket oil pressure sensor is 1/8" NPT 27tpi.
Please seach and see if I got it right. It could be the other way around.
Might be backwards there johnny
I have an adaptor here in the shed to suit a 1/8" npt sender and my factory oil pressure sendor is a direct fit. Well it seems to be, doesnt appear to crossthread at all.
1/8" bst 28tpi and 1/8"npt 27tpi arent all that different (works on my dads 150psi air compressor), in reality thread tap will still seal it, considering its only 5-7mm of thread anyways.
Insert witty comment here....
I asked this one a while ago, but still haven't been arsed to do anything about it.
I confirm that I am right. I fit gauges at work, sometimes once a week. I did one today.
Japanese engine block is 1/8" BSW
Aftermarket gauges are 1/8" NPT or NTP or whatever.
Don't force the wrong one, its just a bad thing. It will crossthread.
Today I bought a VDO T piece from Burson. The original pressure switch screws in the far end. The aftermarket sensor screws in the side.
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