I know I've seen some posts here and there on the topic, but figured I'd get it in one place, for me and for anyone else as they encounter this replacement issue.

Long story short... I will be testing my pressure on Friday prior to committing to ordering... but everything I know about vehicles is leading me to believe that the fuel pump on my XJ is starting on to be on its way out/south. So I thought I'd preempt with this thread so that I could gather the data for what would be best to replace it with. Are there any brands to stay away from? I'm looking for reliability and longer life if possible. I have to drop the tank on mine and don't want to have to do it twice in a short time if I can help it by buying a quality one in the first place, even if it's a few more bucks.

Jeep: '99 XJ I6, 4.0 - nearly all stock.

Looking to elicit personal experiences or direct knowledge of certain brands and/or models of pumps that are of good quality. On the 99, I believe the pump and filter assembly are all connected as one right on top of/inside the tank.
Basically the good/bad/and ugly of what is recommended and ones that you wouldn't touch again with a 10 ft pole.

Thanks!

 

The good? Bosch

The bad? Airtex

The ugly? Airtex

I always favor Bosch for XJ fuel pumps. Carter is okay if you can't find a Bosch, but only as an alternate if you can't wait.

A "search" will find countless threads and stories about Airtex pumps. Note that Airtex can also be rebranded and sold as a pump with a different name on them, so do your research.

And yes, you will want to source a complete "fuel pump assembly" consisting of pump, regulator, filter, sending unit.

 

I knew one that when I searched was Airtex... but wasn't sure about the rest.
So Bosch ones for the XJ are never a rebranded POS one right?

I wish they would've kept the inline filter along the frame rail/brace like on older XJs, was so easy to replace and didn't have to even mess with the tank.
Doing this replacement isn't really rocket science... just more of a PITA than anything else having to drop the tank and such.... when you have to pray for good weather on your day off because you just moved to a new city/state and don't have a garage right now... lol

 

Bosch 67658.

 

I went with a Delphi unit. No issues in over a year now.

 

Okay.. so far that's 2 for Bosch and 1 for Delphi.

Any particular reason that you went with the Delphi unit over others?
I don't wheel my XJ, nor do I plan on turning it into one... she's my DD. I know you actually built yours to wheel and take them out. So if that unit holds up to that kind of use, I think it's definitely worth making note of. thanks.

 

2 reason I went with it over a Bosch. It was cheaper and I havent heard anything bad about them. I have used Delphi in some of my past vehicles and never had any issues. Actually, my last XJ, I put a Delphi in it too. No issues in the 5 years and 40k miles I put on it.

 

stay away from airtex while mine worked for a month i let my jeep sit for a week and came back to it frozen.... ok? so i took it back out and it was heavily corroded and seized. So i went on ebay and ordered one for 40 bucks and works good. gas gauge is a tad bit funky but works. Also highly recommend lubing up the seal when putting it back in. And that little protection plate for the gas lines... yeah keep your face away if you dont want a good clump of dirt in your face. And also in the engine bay on the fuel rail relieve the pressure ALL the way or else when you disconnect the fuel line it will spray on your face and eyes. Trust me im not doing this a 4th time for a while..... also make sure you run as much gas as you can out and if theres still alot. If your pump still works take the gas line off into a gas can and jump the fuel pump relay and drain as much as you can the rest of the way. hmm also make sure that little screen on the bottom of the pump is in and doesnt get knocked off during installation it will cause issues later in my case.

 

I put a Delphi in my family car about 6 years ago. Still running strong.

I put a Bosch in my 97 a couple of years ago. It's available at a discount.

 

Thanks for the info everyone... definitely helps point me toward one to go with. Mainly wanted to make sure that I didn't end up going with one that had a reputation for turning into a POS.
I hope I can run the tank down enough without the pump giving up the ghost first. lol. It's acting up, so I don't know how long it's got before that happens.

 

Both the Bosch and the Delphi look very similar. And as far as what it comes with... here's the link for one of the two.
https://www.rockauto.com/en/moreinfo...sn=393&jsn=393

Is this the complete setup that I would need? or are there other components that need to be ordered along with it?
It looks to me like there's new screen and filter assembly

someone mentioned lubing up the seal before reinstalling... with what exactly?
and I assume a dab of dielectric grease in the connector on reassembly is a good idea?
Thanks!

 

Looks like the Bosch 67658 is no longer available?
Is there any quality Fuel pump assemblies available??

 

I replaced fuel pump 2 years ago on 99 XJ and went through 3 before I found one that worked. I found that the brand name on the box doesn't always mean that the company made the pump. I bought 1 Bosch that lasted a month, 1 Delphi that couldn't supply enough pressure at idle out of the box, and 1 Delphi that is still working 2 years later.

The Bosch and first Delphi were identical and I suspect were not manufacturered by either. The second Delphi had QC marks on it and a Delphi sticker on the sending unit. There were slight differences between the 2nd Delphi and the first two pumps, but I don't remember the particulars. The 2nd Delphi has lasted 2 years and still started this week in -20 degrees (with some trouble).

The reality is that most XJ replacement parts are probably cheap Chinese stuff unless you find OEM Mopar or some speciality offroad manufacturer. The Chinese parts are now the only options for things like AC compressors and fuel pumps.

It's just the way she goes. Be prepared to replace the pump a few times and consider replacing the tank straps to make the job easier. By the third pump I had it down to 30 min.

Good luck.

 

how can you tell if it is a Bosch or counterfeit?

 

I wouldn't call them counterfiet necessarily and I don't think Bosch or Delphi are making new fuel pumps for XJ anymore. However, they might licensing thier name or selling components that are manufacturered by someone else.

I didn't take pics of the three fuel pumps I tried, but I remember that the good Delphi had hand English writing on it from quality control like "ok" or "good" or something like that and a small Delphi sticker. None of the pumps had the same design as the stock pump.

Below is a pic from AutoZone of a Delphi pump and I am 75% sure this is how the good one looked: