Are Ho And Renix Alternators Interchangeable?

[Pete M]

sounds like the bearing in my XJ's alt isn't long for this world. 

[Geonovast]

99% sure they are not.

[HOrnbrod]

Not Pete. The HO NipponDenso alts are regulated by the ECU and the Delco Renix alts are regulated internally, so different wiring. Also the mounting points are different.

[Pete M]

:thumbsup: didn't think so be wanted to be sure before hitting the junkyard again.  this "free" XJ is sure costing me a pretty penny to get it running right. :ack:   (not that it's a surprise to anyone)

[HOrnbrod]

It's probably the standard 90A alt, so look at the donor p/n on the tag for a bolt-in upgrade. The 136A was in the V8 Grands and Dodge trucks and it fits well. Mine just bolted in, but some guys have had to do some minor grinding on the brackets so they will fit.  :thumbsup:

56005685 XJ,YJ,Z; 90 Amp.
556026811 1 X1; 117 Amp.
56005686 ZJ V8; 136 Amp

[Lemmon714]

Pete,

 

Not sure if you are a cheap-o like me- I rebuilt two Denso alternators using the attached link.  I did not replace the bearings, just the brushes.  You should look at the slip rings on the rotor shaft to make sure they are not excessively worn.  I think they are replaceable, I didn't change them on my alternators.

 

http://www.jeepforum.com/forum/f11/rebuilding-nippon-denso-alternator-00-01-56041822aa-835511/

 

 

Dave

[64 Cheyenne]

The 136A was in the V8 Grands and Dodge trucks

 

 

56005686 ZJ V8; 136 Amp

 

Don, isn't this an interchange for an HO? and if so isn't it internal regulated and Pete has a Renix?

[HOrnbrod]

Pete was referring to his new not-so-free 96 XJ.  :yes: 

[Pete M]

yes, the 96.  and a 136 alt sounds reeeealy good at the moment.  guess I'm driving back out to the junkyard soon. :D

[HOrnbrod]

Pete, here are the vehicles this alternator resides in:

 

[mvusse]

A Renix alternator can be used on an HO enigne, but you'd need to change the wiring, and possibly use a Renix bracket. I have seen one  used on a 99 based stroker.

[HOrnbrod]

Sure, it's possible, but why would you want to do it? It makes better sense to put a larger HO Denso alt in a Renix by changing the bracketry and adding an external regulator.

[mvusse]

The one i saw the owner paid good money to have it modified for 180 amp output a year earlier. He didn't want that money to go to waste.

[HOrnbrod]

Okay, I can sure understand that.