My WARN 8274 rebuild part 1.....

Joined
Sep 19, 2017
Messages
814
Location
Houston, TX
Does anyone know a McMaster Carr part number for the armature bearing?

I have this one linked in my notes. Don't remember where I saw it linked but wanted to confirm with the experts before I ordered it.


(30mm OD, for 17mm shaft)
 

GLTHFJ60

Rum Runnin'
SILVER Star
Joined
Apr 18, 2005
Messages
25,852
Location
Durham, NC
 
 
 
hmmmm... I would think that if the motor were bad, it would not run in either direction. The motor doesn't care which way it spins, it runs the same either way, it only depends on which field gets power. The brushes and the armature are the same, whichever way it is spinning.

Since the contactor (or solenoids as the case may be) and the winch controller are what determines which way the motor turns, I would look at both of those first.

You can test the motor though, bypassing the contactor, and hooking it straight to a battery. Directions how are in post #3 in this thread here: Bad motor?
Going back to this, finally got around to testing. Turns out the contactor was bad, and you were right all along! Thanks for the guidance.

Now just to find a replacement for the superwinch contactor that's now nla:

 

1911

chupacabra
Joined
Aug 11, 2006
Messages
6,009
Location
Parker County, Texas
 
 
Now just to find a replacement for the superwinch contactor that's now nla:

hmmmm, hope mine doesn't go bad one day, it's been reliable so far. Let us know what you find and what fits under the cover reasonably well.
 
Joined
Apr 12, 2019
Messages
12
Location
Kenai Peninsula, Alaska
I recently had a experience with my stock solenoids on my 8274 mounted on an 89 suburban, my hunting and fishing rig. I was driving down a dirt road on a fishing trip and my engine stopped and the check engine light came on. I got out, raised the hood to check the oil and the back of the engine lit on fire!!! Open flames from the top of the bell housing!! Thank goodness, I carry a fire extinguisher or the rig would have burnt up right where it stopped. I got that fire out, then the positive lead to the winch started smoking and the winch started on fire!!! (really only the plastic cover for the solenoids). I frantically found wrenches to onhook the battery. As it turned out, I had a worn battery cable with a direct short to the truck body.

I had been wanting to change the old selenoids to a contractor but since superwinch sold out, I couldn’t find one. I have ordered a warn 81400 contractor. Does anybody have an opinion on the 81400 for a 8274?
 

1911

chupacabra
Joined
Aug 11, 2006
Messages
6,009
Location
Parker County, Texas
 
 
I had been wanting to change the old selenoids to a contractor but since superwinch sold out, I couldn’t find one. I have ordered a warn 81400 contractor. Does anybody have an opinion on the 81400 for a 8274?
I couldn't easily find (internet search) the specs for that contactor. You want one that can hold 500-600 amps momentarily and around 200-250 amps continuously or at least for a few minutes. If that contactor is made for their larger winches, you'll probably be fine - just don't get a little one made for an ATV winch.
 
Joined
Sep 19, 2017
Messages
814
Location
Houston, TX
Going back to this, finally got around to testing. Turns out the contactor was bad, and you were right all along! Thanks for the guidance.

Now just to find a replacement for the superwinch contactor that's now nla:

Amazon product
 

GLTHFJ60

Rum Runnin'
SILVER Star
Joined
Apr 18, 2005
Messages
25,852
Location
Durham, NC
 
 
 
Isn't this a replacement for the superwinch contactor?
Looks like it might be. I posted this contactor and other potential replacements in this thread, because it seemed more appropriate there:
 
Joined
Sep 19, 2017
Messages
814
Location
Houston, TX
I saved it in my notes a while back. I called Montana Jacks for some winch parts and mentioned I was thinking about a Temco contactor since the Superwinch is NLA. 98381 was the Warn contactor he carried and recommended. It's just a couple $ cheaper on Amazon than through them. He told me the $200 Warn 34971 was way overkill.
 
Joined
Sep 19, 2017
Messages
814
Location
Houston, TX
Gigglepin and Devon 4x4 will ship you a true Albright from overseas as well. I'd just assume get the warn 98381 or a Temco. I don't find as much info online about the Temco and it's laid out differently according to my noob eyes. Someone with more experience could obviously follow a wiring diagram though. Threads and wiring pics of the old superwinch contactor are readily available and it's known to fit in the solenoid box, so I'm going to get the Warn 98381.
 

GLTHFJ60

Rum Runnin'
SILVER Star
Joined
Apr 18, 2005
Messages
25,852
Location
Durham, NC
 
 
 
Let us know what you find and what fits under the cover reasonably well.
Getting back to this, I don't have my contactor mounted under the cover on the winch motor. I relocated mine to the driver's side engine bay with a 500a isolation solenoid and in-cab controls. I can compare the Warn 34971 dimensions against the 90-14452 though. I'll supply pics.
 
Joined
Nov 30, 2019
Messages
1
Location
Oregon
Finally doing this now.
The OD is 40mm, not 30mm btw.
McMaster Part # 5972K44
McMaster-Carr
$6.72 compared to $18.14 for Warn part # 8316
I damaged my armature bearing removing the motor...
Whats the correct way to replace the bearing and get the armature back in the case without screwing it up? It's on the shaft really tight!! I'm afraid I'll brake the new bearing trying to put it back together...

Edit: I had to press the bearing off the shaft with a slotted piece of steel bar I had that was thin enough to slide under the bearing without damaging the epoxied copper armature wires.

Will a new bearing slide right on? Looks like everyone photos show the bearing getting pressed into the housing, the the next photo is always the motor magically installed :)
 
Last edited:
Joined
Aug 3, 2012
Messages
636
Location
Louisville, KY
 
Hi all. What a thread!

I have found all of the bearings from other sources than Warn and am looking for all of the oil seals from other sources as well to help with budget. Does anyone have part numbers for oil seals handy?

Thx!
 
Joined
Apr 14, 2008
Messages
5,622
Location
North of LA California
 
 
I thought I would post here instead of making another 8724 thread. The armature bearing on the motor I have is toast. I ordered another and its on its way.

What is the best way to install the new bearing? Any tricks or throw it on the press and go?
 
Top Bottom