Get a parts book. Try machinery trader. Also these people www.kelloggautomotive.com. 520-4947460 They rebuilt an old Cummins H waterpump that nobody could fix.
How many do you want rebuilt for $400 each?
How many do you want rebuilt for $400 each?
I just need one.
Please post some pics of what you have, show what is wrong, and I'm sure someone will do their best to help you.