I believe that one is for the 4.0 YJ also but I don't see it listed for a ZJ. The 4.0 ZJ had two different ones, the max cooling which and standard duty, and it seems like all of the ones listed for the ZJ are now the max cooling ones, you want the standard duty one for the XJ. I assume that the 4.0 YJ, 2.5 XJ, and 4.0 ZJ standard duty fan clutches are all the same.

I didn't look up which one a 4.0 YJ takes. The 2.5 XJ takes the hvy duty one (272310). 10 or so yrs ago I tried one from a ZJ but the length of the shaft put it too close to the radiator. Can't remember who it was that turned me on to #272310 but it fits just like the oem one that it replaced on mine. Just moves more air. Having said it before I believe with an oem cooling system in top condition the std duty fan clutch is all that's needed.
https://www.napaonline.com/en/search...=nol-veh-conds

I run the HD 2.5 XJ clutch gives a little more gap at rad than ZJ.

When I replaced mine I compared it with the ZJ and noticed the bit of shaft length difference. When I tried to install it I couldn't get it mounted without touching the radiator. No problem getting either the OEM or HD 2.5 mounted though.

can someone give a direct part number for the zj fan clutch that will work on the xj for better cooling. all I want to know is what part number to order? thanks

NAPA #272310

and that will work in the xj no prob what so ever?

No problem is subjectional and highly dependant of your jeep.

I am a little late on this, but there is something that pulls more air. The Taurus 3.8L 2 speed electric fan pulls 3800 cfm on high speed. Whereas the XJ stock fan pulls about half of that. Just saying for the sake of discussion

Direct swap.

if you want to do and electric e-fan id suggest doing a volvo fan swap into the factory shroud, worked pretty well when i still had the 4.0l

I have a 4.6 stroker and factory cooling...in the deserts of California. Works just fine.

The best "upgrades" you can do for your cooling system?

MAINTAIN IT.

Hey Ron, you have any trouble smogging that stroker. I have heard various stories on that

totally with you unless your after more rwhp

clutch fans can suck up to 10-15 hp

e-fan will give you more hp at the wheels and withthe right fan you likely wont see worse cooling

Never had an issue