cat 5cp2120 bolt

[Jimmy Buffett]

One of the bolts that go through the ceramic plunger is bent on one of my pumps. I guess it loosened and then bent. It is fine thread and metric I assume (none of my sockets fit) but I'm not sure. Anybody know the size of that bolt so I can get another one?
Thanks
J

 

[ratfink102]

It is metric the head is 10mm but dont know where you will get a ss metric bolt like that from.

 

[MEP001]

You should just order one from a Cat distributor. Check the plunger too as it may have been damaged. You'll want to replace the small seal on the bolt too.

 

[Jimmy Buffett]

You should just order one from a Cat distributor. Check the plunger too as it may have been damaged. You'll want to replace the small seal on the bolt too.

Thanks I will.
Turns out KR has "pump breakdown sheet" on the website. I had never noticed it before.

 

[Plow Guy]

Use a bit of blue lock tight on the threads. Pull the stainless bolts on the other two plungers and lock tight them also. torque at 55 inch pounds. over tightening will crack the plunger.