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Old 06-19-2012, 10:44 AM   #874
Scooby Specialist
Member#: 230366
Join Date: Nov 2009
Chapter/Region: TXIC
Location: Nashville, TN
2005 STi
it's motor buildin' time!


Originally Posted by Patrick Olsen
They wouldn't be 1/8" NPT on a Subaru, if anything they'd be 1/8" PT (also known as 1/8" BPT). Slightly different than NPT.

There are a number of 10mm fasteners on the car, can't you just pull one out to use to check?
You're exactly right - they're 1/8" BPT. Will be using a 1/8" NPT tap to make them compatible with some sensors.
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8thWonder is offline   Reply With Quote