Heater Hose Fitting with MP Aluminum Water Pump Housing

[Dodge Don]

I have the Mopar Performance aluminum water pump housing on my engine and have discovered that the heater hose fittings on this are both 5/8 NPT.

This is a problem for me since my heater box and heater hoses are the correct 5/8 hose and 1/2 hose.

I've searched high and low and I cannot seem to find a heater hose fitting with a 5/8 NPT and a 1/2 hose nipple. Any suggestions out there?

The set up should appear stock.

[John_Kunkel]

They're hard to find but there are reducer bushings that don't have the usual hex head, they are just 1/2"NPT on the outside and 3/8" NPT on the inside or you can just hacksaw the hex and thread them in together. I think that's as close as you'll come to original appearance.

Since the MP housing has the dual alternator bracket mounting pads it won't look correct anyway.

[Charger-Bodie]

you could do some creative welding and make one nipple out out two.