Fuel Pump / Sending Unit Replacement

[Eriko5000]

My fuel sending unit is leaking through the rubber head where the wires run through the plate on the side of the fuel tank, and I don't see a way to repair/seal that piece, so I'm looking to just replace the whole thing.  It's an '89 MJ with the 4.0 I6.  The previous owner replaced the fuel tank, and fuel pump, but the sending unit itself looks like the original piece.

My question is this: Will a sending unit/fuel pump for a 2.8L work for a 4.0L? 

 

I've read that they don't make MJ sending units any more, so your only option is to find one off an old MJ, but I found a pump/sending unit online for a 2.8 that looks about identical to the one in my fuel tank.  I just don't know if they're actually compatible.. Hoping they are!

[jdog]

Mts makes them

http://www.mtscompany.com/sendingunits.htm

[Pete M]

On 12/16/2021 at 9:20 AM, Eriko5000 said:

but I found a pump/sending unit online for a 2.8

 

 

 

that image shows an MTS assembly.     just get their 4.0L one and you'll know for sure.   

 

on a side note for anyone else reading this, the 2.8 never had a pump in the tank, but rather a mechanical pump on the engine that sucked through a suuuuper long straw.