3859326 Delco

[Joseph K.]

Does anyone know where I can get a rebuild kit for this pump?

[Joe R.]

Re: 3859326 Delco

Joe,

Consult with Bill Mock. He can be reached thru this web site via personal message.

JR

[Joseph K.]

Re: 3859326 Delco

Thanks JR! I know that Mock is very knowledgeable on water pumps but am more interested in getting the correct parts for this rebuild so that I may perform the rebuild. Any factory part numbers that are out there to cover this rebuild would be appreciated. I will in fact contact Bill for his advice. Thanks again.

[Joe L.]

Re: 3859326 Delco

Thanks JR! I know that Mock is very knowledgeable on water pumps but am more interested in getting the correct parts for this rebuild so that I may perform the rebuild. Any factory part numbers that are out there to cover this rebuild would be appreciated. I will in fact contact Bill for his advice. Thanks again.

Joseph------


Most of the correct, original GM parts for your pump were discontinued "eons" ago. But, here are the part numbers for most of them:

shaft assembly w/ bearing------GM #954860 discontinued 11/68

rotor--------------------------------GM #3704164 discontinued 5/72

backing plate----------------------GM #3782610 discontinued 10/71

gasket------------------------------GM #3782611 discontinued 4/97; currently available under GM #12555493

seal assembly---------------------GM 3756933 discontinued 2/72 replaced by GM #3927156 discontinued 10/76


Actually, most of these parts are completely unseen so there's really no judging issue involved, at all. Brand new, high quality aftermarket parts are easily available.

[Joe R.]

Re: 3859326 Delco

Joe,
The reason Bill Mock is so knowledgeable is he has been rebuilding water pumps for the last 40 years. Give him a call or private message on this channel.

JR

Thanks JR! I know that Mock is very knowledgeable on water pumps but am more interested in getting the correct parts for this rebuild so that I may perform the rebuild. Any factory part numbers that are out there to cover this rebuild would be appreciated. I will in fact contact Bill for his advice. Thanks again.

[Keith B.]

Re: 3859326 Delco

If you take your pump into a auto parts store you can request to have yours rebuilt by the supplier of the rebuilt units they sell. And you will get your orginal back. That's what I did for dads 427 pump

[William M.]

Re: 3859326 Delco

The old saying is "You get what you pay for". This is true in water pump rebuilding also. You can get your water pump rebuilt for less than $100.00 and you would probably get a reman bearing(or a off-shore bearing) and shaft, inferior seals, a stamped steel impeller(not a cast iron impeller that the water pump originally came with), wrong backing plate and mis-matched backing plate bolts, wrong hub, hub height set wrong and a 90 day warranty. And you hope that they don't lose your original casting in all the handling. Your comments please.
Bill Mock #93
Bartlesville,OK
Phone918)333-0748, cell (918)214-5206
Email: mockauto@aol.com