FUel Pump & K53 Robust Fuel System.

Hi,
One said in another post that K53 are for Flex Fuel vehicle.
That's why I don't understand why my tahoe has this K53 RPO code in the glove box sticker though it's a vin T Tahoe.
Since my Tahoe was made for export and has the Belgium area RPO code also, could it be possible that they were equipped to handle everykind of gas they may encounter on the European soil?

Its possible yeah.

01ssreda4 said:

Its possible yeah.

Click to expand...

Thanks.
I asked ACDelco about my pump but they did not understand my question.
I've seen on ebay a fuel pump, the ACDECOL MXMG9302 that would fit for half opf the price but I can't find this reference anywhere else but ebay...

Update folks...

Since each website was not giving any answer but raise many more question, i decide to order the pump only when I had the old one removed.
This evening is a small voctiry. The war is not over yet but a battle was won.

I was able to remove the hose form the neck filler. the big one that is going to the fuel tank.
Then I was also able to lower the tank, disconnect the wires and the fuel lines.
This is where I stopped. The way I put my jackstand make impossible for me to lower the front side of it and slide it sideways to remove the pump.
I'll have to raise a little bit more the Truck before I do anything else.
Despite this I was able to take some snapshots with my cell phone.
The pump # is ...... 15759665
This # never showed up whe browsing on Gmparts direct or ACDelco. Thankfully, this pump cost a third of the one I thought I had to buy !
I'm gonan take a well earned shower and order the pump.

Still there's something wrong. the older pump had a 2x2 electrical connector (FPW3) wich is now replaced by a 4x1 (FPW6). I don't want to cut any wire down there i's impossible to move enough to do a good job there. Plus the PDF file form the manufacturer (Spectra premium) is in Black and white and notr really claer about where goes each wire.

Is there a small part <with an inch or two of wires with both those connectors I could put between the one I have?

(sorry my english is bad tonight, I'm tired. )

I have no clue on that one

I've done some homework.
I've found what I need in Ebay, sadly the seller doesn't ship outside of the US :

This is what I need :


The new pump will be sent with a harness including the 4x1 connectors. What I need now is the female 2x2 connectors.