water pump for 1996 Ram
Veteran
Joined: Sep 2009
Posts: 361
Likes: 0
From: New Mexico
Look at your current waterpump, and if your fan has a big nut that attaches it to the pump, you need a threaded. If the fan is held on by 3 bolts (?) then you need non threaded. This is the only thing I can think of on a threaded vs non threaded waterpump. Hope this helps!
Record Breaker
Joined: Jan 2010
Posts: 1,048
Likes: 1
From: Wisconsin
I thought all the fans were a threaded attachment. When I got my pump they asked bolt on pulley (4 bolts) or press on pulley. I had a bolt on but bought a press on because it was cheaper and I got a new pulley.
Hall Of Fame
Joined: Jul 2006
Posts: 12,204
Likes: 10
From: Gainesville, Ga.
i think all the 2nd gen magnum water pumps are threaded. you'd have to go way back to an old 1st gen/LA engine to find a bolt on fan. i'd also guess those old models are not interchangeable to the magnum. you may not be in the right year section of the parts lookup.
Professional
Joined: Jun 2006
Posts: 106
Likes: 0
I believe threaded or non-threaded is referring to the pulley - does it have bolts that hold it on or is it pressed on. All fans are threaded on. I had a bolt-on pulley and when I bought my threaded water pump from Rock Auto it was the correct part. I'm guessing you are looking at Rock Auto and see the same thing.
