View Full Version : NPT size on softail filter housing

07-11-2014, 6:54 PM
I have a 1999 HD EVO. I'm removing the two aluminum hard lines does anyone know the NPT size fitting needed for the filter housing. I do not own a manual. Is it a 3/8 in. NPT? Does anyone know?

07-11-2014, 9:40 PM
I know the oil feed line is clamped to a 1/8 in. NPT, 3/8 in. hose barb but the filter housing does not look 1/8 in. NPT.

07-12-2014, 1:27 PM
If you have the part in your hand you can visit a hardware store and determine the size by checking with NPT fittings.

07-12-2014, 1:34 PM
Yeah, that's the route I'm going. I just like having everything with me. Thanks guy.