Another option is to just drill and tap the factory block off plate. They are plenty thick. I did this on one of mine, been doing great for almost 9 years.Earls oil cooler block off with port for factory Toyota oil pressure sender. An adapter is needed to convert the 1/8 npt to the 1/8 bspt for the factory Toyota sender. Adapter part number is EARLS 968699ERL
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