H/O 120 Amp Xj6 Jaguar Alternator

I wanted like a simple solution to the old "I need more amps..." issue we have with these Tacos.

I have a 2.4l 4 cylinder 1996 Automatic Tacoma.

I've done this mod before with my 1990 Toyo Pickup, see here.


That alt has served me well all this time and on that truck was basically a plug and play. Since both trucks are 3 pin and Toyotas I assume that the wiring shouldn't be that hard. Not to mention that the mounts also look quite similar.

I expect having to get a new belt and possibly having to rework the adjusting bracket. Both are things I can deal with. I just want to get the wires correct. I imagine I could just buy a Denso pigtail and tap into the existing Taco wires.


CONFIRMED


Ok well I just confirmed that this works. Quite an easy install too if I say so myself.

Anyhow, I purchased a used 96 Jaguar Alt off ebay for $30. The guy said it charges but may howl (possible bad bearings). I figured I could rebuild it myself if I needed so I took it. Turns out after taking the alt to 3 different alternator shops they all said it was good, no howl. One shop said that the howl may have come from the Jaguar itself seeing that there was a little bit of rubber particles on the alt, suggesting that a pulley or something else may have caused the howl.

So anyways, I lucked out and got a 120amp Jag alt for $30. It's not all refurbished pretty but at that price I didn't care.

I started by taking my old Tacoma alt out. I placed it next to the Jag alt to look at the differences. The Taco alt mounts are inline with the pulley, while the Jags pulley is slightly offset to the right. It's hard to tell in the picture but the Jag alt is also slightly bigger.



Of course the plug in the back is different but funny enough when I was going to throw the box that the Jag alt came in I checked through all the newspaper packing and found that he also included the pigtail for some reason. That saved me $8-$15 from buying one off ebay. BTW here is what you will have to get from ebay (just search "nippon denso plug").




Now you only have to tap in two wires. With the plug facing you like the immediate above picture the red wire goes to the right side and the yellow wire goes to the left. The top wire is unused (white wire on your truck).

I then wiggled the Jag alt in there and totally expected to have to buy a new belt but to my surprise it fit on my original belt without issue. Turns out that the offset of the alt brackets allowed for a perfect fit. I didn't have to modify any part of the brackets or get a new belt. It just fit.

Here are some pics of it installed.





Here is a pic of the wiring splice I did. Pardon the brightness of the shot. But all I used were the yellow and red wires from the existing plug. Since I just tapped in I kept the original Toyota plug just in case but in the near future I'll be wrapping it up and hiding it better. I also need to add a cover for the charge terminal. The original Taco version doesn't snap onto it.




Now I have plenty of power (120 amps) to run my e-fans and anything else I want to add in the future.

 

That is pretty cleaver. I have a 96 tacoma and might try this when I have to replace my alternator.

 

Thanks bud. Another cool thing about this alt is that if it ever goes out you can easily get one at your local auto parts store (probably in stock) and usually with a lifetime warranty.

 

Do you know if it would fit on a v6? I plan on swapping my 4 banger for a 6 once I am finished with nursing school.

 

Not sure about the 2.7L or the V6. I understand that they are different in shape so maybe not. I imagine that if they do fit you will still probably have to convert the plug over.

 

Well, this makes things nice and simple. Gonna search for one now!

 

The GM cs144 is another alt swap. It also has higher output. Nice find!

 

The CS144 fits the V6 with a little work but requires quite a bit to make it fit properly on the 4cyl.

 

How much amps are put out at idle vs stock at idle?

 

Not entirely sure. But you could check the idle rotations of a 96 Jag XJ6 and compare it to what our trucks idle at and do the math. All I know for sure is the pulley is the same size on both and now my lights don't dim when my e-fan turns on.

 

I know this is old, but I just used your guide to do this swap on my 99 3RZ.
https://www.tacomaworld.com/threads/tiffany-the-taco.374490/page-15#post-26181542

 

https://www.ebay.com/itm/1542667288...MIqenosYv--gIV8SStBh0OGQZZEAYYBCABEgJrlPD_BwE

Link to a harness I believe will work for this upgrade.