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mdost03 · 08-12-2007

Yeah most of the plumbing on the engines are standard, not metric. On my 420a, the oil sender was a 3/8 NPT fitting on the back of the block and I just needed a 3/8 to 1/8 reducer to put my oil pressure gauge on.

08-12-2007	#7
mdost03 Sonic Champion! Join Date: Jul 2005 Location: Litchfield Drives: VA STI Posts: 1,793	Re: Oil pressure guage question... Yeah most of the plumbing on the engines are standard, not metric. On my 420a, the oil sender was a 3/8 NPT fitting on the back of the block and I just needed a 3/8 to 1/8 reducer to put my oil pressure gauge on.