Help.... Fuel Pump

XJ91 · May 25, 2004

Would anybody know if I can use a fuel pump from a '91 YJ for my '91 XJ?

Both have 4.0L HO.

There is a guy selling one that is only 1 year old at a reasonable price and I can really use one.

ThanX ...

RichP · May 26, 2004

As far as I know the YJ's all had 4.2L's not 4.0. Don't know if that makes a differrence. Check with an online parts store for the part numbers for yours and the YJ in question.

ZmOz · May 26, 2004

And weren't all the 4.2's carbureted? If so then the pump most likely won't work...

XJ91 · May 26, 2004

ZmOz said:
And weren't all the 4.2's carbureted? If so then the pump most likely won't work...

Same like the XJ's 91+ had the option of 4.0L HO's

RichP · May 26, 2004

ZmOz said:
And weren't all the 4.2's carbureted? If so then the pump most likely won't work...

They went to FI in 90 or 91, ours was an 89 and had that carter BBD when we first got it and I did the weber converision as well as the nutter bypass...

logdog · May 26, 2004

the yj changed to the 4.0 in 89 as well as the xj. The difference in the fuel pumps is the mounting. The xj's mount in front of the tank, and the yj mounts on the top. So...no, they are not interchangable.

XJ91 · May 26, 2004

logdog

ThanX for the info...

RichP · May 26, 2004

logdog said:
the yj changed to the 4.0 in 89 as well as the xj. The difference in the fuel pumps is the mounting. The xj's mount in front of the tank, and the yj mounts on the top. So...no, they are not interchangable.

Nope, 89YJ still had the 4.2 with a mechanical fuel pump on the block.

Help.... Fuel Pump

XJ91

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RichP

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ZmOz

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XJ91

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RichP

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logdog

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XJ91

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RichP

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