I want to add oil pressure and temperature gauges using electrical senders not pipes to under the dash. Obviously my landy has a low oil pressure sender so the logical place to insert said senders is into that hole....

What is the thread of the low oil pressure switch ?

I've seen this adapter : 1/8 NPT T-PIECE Adapter OIL PRESSURE/TEMPERATURE TEMP SENDER/SWITCH Gauge Dial | eBay is this going to fit or would one of the adapters that goes into the filter thread be better i.e. : OIL FILTER SANDWICH PLATE 1/8 NPT Pressure/Temperature Temp SENDER SENSOR GAUGE | eBay

i got a couple of these, the work well and come with senders where applicable
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discomark10 said:

i got a couple of these, the work well and come with senders where applicable
www.mcgillmotorsports.co.uk (Powered by CubeCart)

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Thanks but I just need it as far as the senders as I will not be using traditional gauges.