NHC 250 belts
Water Pump is correct as a NAPA 25-22425.
There is a vendor on ebay that sells the OE water pump belt and you will appreciate how much PIA that swap is. (search 22425 Pix fan Belt 3019061 Cummins) Their belt is NOS and wider than NAPA. I like how it fits the pulley higher and the even number of ribs on the bottom. I had ordered it as a spare but used it instead of the NAPA.
Fan clutch matched set of 25-28492
power stg matched set of 25-9480
Alt matched set of 24-7480 - Mine came with a Fractional horsepower 4L480 which is crazy to use this type of belt! Different angle and groove on the pulley.
If you are going to Slidell ask for James and tell him Juan sent ya.
Good luck on your storm prep