Darfun

Im looking at buying new injectors for my 1992 Jeep Cherokee with the 4.0L. I know i want the Bosch 0280155703 injectors. But I'm trying to locate these injectors online. I know there are injectors on Ebay but Ive read that there are fake "Chinese" parts. I know many people on the forums complete this upgrade and know how to do it, just having some problems locating a trusted place to purchase these online. If you'd be able to direct me to a website or person that is trusted that sells the 4 pintle injectors that would be appreciated.

5-Speed

Look down in the for sale section. There is a member jhc that sells them. He is a great guy to deal with.

Ralph77

I know I am going to get laughed at for spending this kind of money but when I did the 4 hole injector upgrade in my '00 I bought brand new ones. On the advice of the son of an engine builder in my area who also owns an '00 I went with ones from here:

https://www.injector.com/cart/pc/home.asp

Six cost me $300. Reasons I went this route. The engine builder is one of the go to places in the area. They are the kind of folks that when they talk you listen. They were new. They are literally 15 minutes away from me and was able to buy them in person. Figure if I every have a problem or need a replacement it will be easier to deal with. Not sorry I spent the money.

97grand4.0

What sort of benefits did you notice? Just killing time up here in the NE we have a major snow event today.

denverd1

typically smoother idle and better low end off idle power. have looked into doing the upgrade as well..

Ralph77

Now realize this is butt dyno data, LOL, but a smoother idle, seemed more responsive, and I have a little pick up when doing 70 MPH just by nudging the gas. Ya know little rise you get out of the front end. With all the other stuff I did (new O2 sensors, plugs, new fuel rail, synthetic in my diffs) on longer highway trips I get almost 22 MPG. This is an '00 with CA emissions. Now realize too that some people have said, and I don't doubt it, has nothing to do with 4 hole injectors just the fact that you have new or clean injectors and not ones that have 175K on them that are original.