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View Full Version : Boat Heater fittings size


jfw432
10-02-2012, 03:54 PM
I know the heatercraft lines are 5/8" for my model. I want to pick up the remainder of the fittings I need on the way home today but not sure what everything is.

I know the intake manifold uses the 1/2" MIP fittings. Is the fitting for the waterpump input the same size or is it smaller? I can't remember.

jfw432
10-02-2012, 11:37 PM
Well my water pump is tapped for a 3/8" fitting just for future reference.