1. Registration trouble? Please use the "Contact Us" link at the bottom right corner of the page and your issue will be resolved.
    Dismiss Notice

Alternator not charging the battery, help finding a replacement

Discussion in 'Intermediate CJ-5/6/7/8' started by r_unda, Nov 24, 2015.

  1. r_unda

    r_unda Member

    My alternator is not charging the battery so I am looking for a replacement. I can't seem to find one with the exact connections as shown in the photos attached below. Any idea what brand or model that is. I don’t really want to redo wiring at the moment unless necessary plus I am not good at wiring.

    Thanks

    2015-11-24 10.23.34.jpg
    2015-11-24 10.24.28.jpg
     
  2. timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

  3. aallison

    aallison 74 cj6, 76 cj5. Has anyone seen my screwdriver?

    Around here you can have alternators rebuilt. I believe they cost a little more than one from NAPA but it's an alternative.
     
  4. zila

    zila I throw poop

    Yes looks like a Motorola. Best bet is to upgrade to an internally regulated modern alt. I replaced OEM Motorola with a CS130. There are other conversions as well.


    What year and vehicle?
     
  5. r_unda

    r_unda Member

    Thanks for all the replies. I would look at the Motorola style alternator, I was also looking into the powermaster 8-46100 but I am not sure what wiring modification is require. This is for my 73 CJ5

    Thanks
     
  6. autotech1984

    autotech1984 Member

    I have the Motorola alternator and regulator that came off my 72, it was working when I took it off about 6 years ago, but it is only rated at about 25 amps
     
  7. r_unda

    r_unda Member

    Decided to go with a NAPA remanufactured 55 Amp alternator, part number RAY 136021 along with a new voltage regulator. Everything should be plug and play.

    Thanks for the help.
     
  8. johneyboy03

    johneyboy03 The green beast

    I did the cs144 swap, with all the aux i've put in the last year i needed something with high amp at idle.
     
  9. 68BuickV6

    68BuickV6 Well-Known Member


    Might want to consider putting the motorola alt and parts up on the forum if you dont want them (in a for sale ad). Some members have them rebuilt for restoration.
     
  10. r_unda

    r_unda Member

    Will do. I have few original engine parts I need to put up in the forum.
     
  11. Rick Whitson

    Rick Whitson Detroit Area 2024 Sponsor 2022 Sponsor

    On my Jeep I used a Chevy one wire, and cut about an inch off the mounting lug to get the pulley to line up with the crank pulley it will work with the Motorola brackets. This will give you between 60 to 100 amps depending on which alternator you buy.
     
  12. Rick Whitson

    Rick Whitson Detroit Area 2024 Sponsor 2022 Sponsor

    You will have to make a spacer for the arm to get the arm in the right alignment.
     
  13. r_unda

    r_unda Member

    Installed the NAPA remanufactured 55 Amp alternator, part number RAY 136021 without any issues. My voltmeter reads right at 14 volts. Everything was plug and play just like I wanted.

    Thanks for the help.