Did a search and found nothing on P/N's. My water pump went out the other day. It started spraying all over the place and I found that I could wiggle the fan and pully around. I looked on NAPA and I don't know which pump to get. There are press on pully, and bolt on? As far as I knew it was bolt on only since it has a big nut on the front of it. I was going to get this one from NAPA http://www.napaonline.com/Search/Det...022014+3999999
But I don't know if it will work now. I have a 5.9 in my truck and the pump looks just like this one in the picture. Can someone please point me in the right direction?

 

Press on? I am pretty sure they are all bolted on .

 

It says press on pulley and bolt on pulley. And threaded, and non threaded ports? I need to know which one to buy, I am doing this tomorrow along with my Hughes plenum kit.

 

When you get it off, take it to the parts store.

 

Its up to you. What would you rather have? Press on or bolt on pulley?

 

Id go with Bolt on. Press on seems more likely to fail

 

when i replaced mine, the pulley was pressed on. the big threaded bolt in the center is to screw on the clutch fan.

when i search napa for my 01 5.2, it only lists 2 choices - (both pressed on)
58560 - reman
43034 - new

 

Bolt on was in older trucks. If you don't have four smaller bolts in the pulley around that big center one, you need a press on pump. The bolt on pump doesn't come with the pulley or the bolts. The small heater hose on the pump at about 2 o'clock may be threaded or just press in depending on the year.

 

hey man oreillyautoparts has a new wp made by Master that takes the place of press on and bolt on. it also has lifetime warr, and isnt rebuilt the correct pully is mounted from the factory just spin your fan clutch onto the new pump