Turbo Coolant/Water Line Size
#6
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I think -4 is 5/16", -3 is 1/4"...that's off the top of my head. I'm positive -6 is 3/8" so I just scaled down. I custom did my lines in all braided with no barbed fittings, so I can only compare.
#8
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1/16' = -1AN, so -4 is 1/4", -6 is 3/8", -8 is 1/2", etc. All the way up to -20AN which is 1 1/4".
I've typically used -6AN for water lines, but that's only because M14x1.5 to -4AN fittings can be hard to find. -4AN or -6AN is fine.
I've typically used -6AN for water lines, but that's only because M14x1.5 to -4AN fittings can be hard to find. -4AN or -6AN is fine.
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