350 water pump studs

[Wallace6]

Ok so I just bought a new water pump and it didn't come with the studs.
Anybody have a part number? Or what size replacement bolts are? Gates pump 43099

 

[Matt69olds]

Any decent parts store will have them in the Help or Dorman aisle.

 

[fast 99]

Ace hardware

 

[75gmck25]

IIRC, the original studs are fine thread on one end and coarse thread on the other end, and a short unthreaded section in the middle.
Similar to these. https://www.amazon.com/dp/B000CO779G/

 

[Wallace6]

Yes you all are correct but I don't have options like that where I live. I tried double nutting them to remove but they are weak and just bend. I would be super happy to just know what size I need in bolts if anyone knows. Thanks

 

[75gmck25]

I’m confused. What options don’t you have?

Dorman or Help! branded parts are sold at almost all parts stores. If they don’t have them on hand, you can usually order them for free store delivery. The link I posted was for Amazon, and I don’t know anywhere in the US that they don’t deliver.

The threads on the stud are 5/16”-24 fine thread on one end and 5/16”-18 coarse on the other. Check the threads on the end sticking out (fine or course?) and by elimination you will know the threads on the other end. Then just buy about a 1 1/4” long bolt with the right threads to go into the flange.

If you clamp vice-grips on the stud, down next to the bottom where the stud is unthreaded, it gives you leverage to turn it. It will mangle some of the threads, but you can turn the stud.

 

[dhartman]

Ok so I just bought a new water pump and it didn't come with the studs.
Anybody have a part number? Or what size replacement bolts are? Gates pump 43099

Dorman 23733 or 23737 should be able to get them at any parts store.

 

[Wallace6]

Ok so I have basically rebuilt the entire cooling system and does anyone know if the gates pump 43099 is duel pattern on the hub? I replaced it all and the flange in the pump is not true. I kept losing the belt , bought a new water pump pulley and that's,when I took a straight edge to it and could clearly see, either the shaft is bent or the flange. I bought the pump from rock auto and they want me to pay shipping which will be a pain and cost me the same as I spent for the same problem. Anyone have a Delco number handy? I found 252-595 does that sound correct?
Thanks