Fuel pump replacement for 91Z..
 

Doing some research on fuel pump replacement and I see the 96 Chevy suburban fuel pump will work in a 91..

I can research it but, anyone know the correct part # for these? When I order these do they come with everything I need?

Never had a car that used two fuel pumps, or for that matter, had them mounted inside the gas tank......

Only fuel pump I ever changed was on my 73....

I just need to know exactly which parts I need.....

Thnx..

Re: Fuel pump replacement for 91Z..
 

You may want to replace the “y” that connects the pumps to the feed line while you are there. Do a search on the “y” for more details. The original is plastic and is discontinued. It has a tendency to split from old age and gets brittle. My shop, CT Machining, machines a replacement “Y” out of billet aluminum which will not break nor leak. Contact me if you want to order one. Thanks, Carter

Re: Fuel pump replacement for 91Z..
 

ACDELCO TS1
ACDELCO TS3
ACDELCO G1
AIRTEX E3240
AIRTEX E3240

Re: Fuel pump replacement for 91Z..
 

Isn't the part # 25163473 ? I'm guessing I should order 2 of these....

When I Google this part # it seems you can get these almost anywhere including Amazon..

Re: Fuel pump replacement for 91Z..
 

Ok , now I see....Thnx..

Re: Fuel pump replacement for 91Z..
 

I replaced my fuel pumps a while back. Not difficult compared to most jobs on these cars.
I was experiencing pressure bleed down after shut down. Isolated leak to the fuel sending/pump unit. I replaced the pumps because it appeared the leakage was related to the pump check valves. Come to find out, the plastic "Y" had a small crack in it and was the culprit.
The pumps are available from nearly all of the common sources. Marc Haibeck has a recommendation as to which one to use, so you might check this out. His recommendations on these cars are well documented as being correct.
When re-assembling, be sure and use hose that is designed for submerged applications. There are 2 different hose sizes in the assembly. 5/16" and 3/8". Use good quality stainless clamps and I would highly recommend using the "Y" that Carter supplies.
Here's a pic of what you will be looking at after rebuild.
Attachment 8375

Re: Fuel pump replacement for 91Z..
 

Here you go! Welcome from Jerrys Gaskets:cheers:

Just click on the following link for info on replacement fuel pumps for the ZR-1.
http://www.jerrysgaskets.com/zr-1-fu...p-replacemets/

Re: Fuel pump replacement for 91Z..
 

RockAuto has a whole selection. You don’t need to spend a ton of money on these. I used the Precision Electric pumps. They seem to have a good reputation. Some people feel more comfortable with name brands that cost (a lot) more. But I’ve seen the Airtex and Delphi pumps go out just as easily. To each his own...
H
:cheers:

https://www.rockauto.com/en/catalog/...fuel+pump,6256

Re: Fuel pump replacement for 91Z..
 

To your Question: yes the GM # is 25163473.

Re: Fuel pump replacement for 91Z..
 

Here are 2 new ones, they include what you need.

https://www.ebay.com/itm/16328352010...84.m1555.l2649