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Warn 9.5 Contactor/motor on 8274

Discussion in 'Winching and Recovery' started by Code Red, Feb 5, 2018.

  1. Code Red

    Code Red

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    Good morning everybody,

    I rebuilt an old 8274 this weekend, and as the motor was dead and the solenoids always seemed to eb the weak point, I decided to do the mod to use a 9.5 motor and the contactor that goes with it. Install was very straightforward and everything is put back together, but I have a wiring question.

    The wiring from the contactor to the winch is easy. Three color coded wires to three color coded terminals. But . . . . . The new contactor doesn't have a heavy negative lead, only a positive one. I am assuming the 9.5 must ground through the chassis, but I am a little wary of this solution on the 8274 in a brand new bumper that still has all the powder coating. Is there a clean way to add a ground or am I worried about nothing?

    Thanks Mud!
     
  2. spotcruiser

    spotcruiser Geezer SILVER Star

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    I believe the 9.5 motor has a ground stud or bolt location. Run a ground cable, equivalent to the positive cable, to the motor ground stud.

    I added a ground stud to an old 8274 motor years ago for the same purpose.
     
    Last edited: Feb 5, 2018
  3. 1911

    1911 chupacabra

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    Yes, it does. That's exactly what I did for the 9.5XP motor I put on my 8274. ran the heavy ground cable all the way back to the negative terminal on the battery - the 8274 draws a lot of current on start-up.
     
  4. Code Red

    Code Red

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    Thanks guys. I only saw the three color coded studs on the motor. What should I be looking for? Is it one of the countersunk pieces?
     
  5. Code Red

    Code Red

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    1911 - Thanks for the reply. I read you had this setup and was hoping you would chime in. I think I PM'ed you over on Expo as well.
     
  6. 1911

    1911 chupacabra

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    Yes, there are threads in the bottom of the case that take a good-size bolt (14mm or 1/2"?). I guess it depends on how you clock the motor on the upper housing of the 8274; in any event, the threaded hole for the ground is on the opposite side of the motor from the main power leads for "in" and "out". I took some photos of mine for you, but it's hard to see with the winch installed:




    You're welcome. I hope you didn't PM me recently on ExPo, I haven't logged in there in years.

    Good luck with your installation.
     
  7. Code Red

    Code Red

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    That's exactly what I needed. Thanks again.
     
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  8. Code Red

    Code Red

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    Thanks for the help guys. Winch is installed and working. Need to tidy up some wires, but everything is functioning great.

    2018-02-10 - New bumper.jpg
     
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  9. t100boy

    t100boy

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    So where did you source your replacement motor and contactor? I am looking at my selinoids 1 or more is bad. wondering if it bolts on no issues or retrofitting and do you need a new controller?
     
  10. Code Red

    Code Red

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    I got mine on Amazon. I let all the magic smoke out of the motor years ago, and I knew I needed a motor, and in my experience the solenoids have always been the weak link on winches, so I wanted to upgrade to a contactor. There are folks out there who are very happy with a Superwinch contactor (available from Summit or Jegs), but I took the easy (and more expensive) route and kept it all Warn. It also meant that the Contactor was the one intended for that motor, so everything was color-coded and install was a breeze. You do also need to get a splined (versus keyed) gear for the motor shaft, but that's easy as well.

    Another good source for Warn parts is Clemson off-road.
     
  11. 1911

    1911 chupacabra

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    47coeman likes this.
  12. 47coeman

    47coeman Love those 45's

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    That place is close to my neighborhood. If I contacted them would they know what I want to do the conversion like above.
     
  13. 1911

    1911 chupacabra

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    I imagine so, but I already knew what I wanted and just ordered the parts on-line, never talked to anyone on the phone there.
     
  14. flintknapper

    flintknapper

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  15. 47coeman

    47coeman Love those 45's

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    Do you remember what the total bill was for all the parts???
     
  16. 1911

    1911 chupacabra

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    No, it was 9 or 10 years ago, sorry. The motor itself was the most expensive part, around $300 if I remember correctly.
     
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  17. 47coeman

    47coeman Love those 45's

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    Good morning I checked out a warn dealer in northern Cali and will give them a call to move forward so I can adapt that set up to mine, TNX for the help.
     
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