I'm looking at upgrading my alternator to something with more amps. I have 6 kc lights that I'm running now so I think I'll need it when I go to use em more. I am aware of the 160A 01-06 Durango upgrade but through the search function on this forum, I am unable to find out if it will work on my 99 4.0L. Will it? If not, any other options I have other than the expensive 'buy the Mean Green one' option?
Call an auto electric shop in your area and see if they can rebuild yours to 160 amps. I don't know if it will work on jeeps but it works on other alt's ive had. Should not cost an arm and a leg either.
The 1999 Wrangler came standard with an 81-amp alternator. If you opted for the Electrical Group, this was upsized to a 117-amp alternator instead. Have you tried to verify which one is on your Jeep? If you've got the bigger one, maybe you'll be okay as you are. (Just a hopeful thought.)
__________________ Dempsey Bowling
My fleet: 91 Miata, 98 Wrangler Sport, 06 Mustang GT, 01 Suburban 8.1L, 14 Forte EX
Jeep mods: 4" longarm + 1" BL, 35" KM2s, 4.56s with dual ARBs... and lots of scratched armor
I'm pretty sure I've got the 81. I'm probably gonna see if I can match one up at a junk yard. Weren't the 136 amps out of a dodge truck and the 160 out of 01-06 dodge durangos? I think these may work. If anyone knows for sure, please comment on this post. Dont wanna buy one at the yard then end up not working. BTW TexasT, Having this one rebuilt was a joke. These guys wanted a barrel of cash to do it near me. I told them that I wanted to have it rebuilt to a higher output and they told me I'm probably looking at 400-500 bucks. That was the fastest I ever hung up the phone in my life haha! Thats about what I'm spending to put an 8.8 under the rear!
My gosh. The price to get it rebuilt is a joke. My son has a 99 too and his alt is locked up. I went online and found one on eBay (not my favorite place for rebuilt parts) but found a 160 amp rebuilt for $130+-. Feedback was over 99% and 9,000 had bought...so I did too. Will let you know. They had new ones, 200a, but I went with a rebuilt.