WTB: O-rings for 400X20 rims (M939A2 series truck)

[BKubu]

Does anyone know where I can find the correct O-rings for this rim? I'd like to find the right ones if anyone has a lead. Six to ten ought to do it. Thanks!

 

[steelsoldiers]

Call your local truck service shop or truck tire shop and tell them you have some 20" bolt-together rims on a piece of equipment. Tell them you need some 20x1/4" o-rings. Those will work fine on the A2 rims. The A1 rims require a fatter o-ring... maybe a 2-x3/16", but I'm not positive.

The other option is buy them from Joe Czarnik.

These folks sell o-rings for their rims too: http://www.accuridewheels.com/bolttogetherspecialty.pdf

 

[M1075]

You can always have them made. I paid about $8 each last time. I have posted a few threads here before with the contact info. If you want it and can't find, let me know.

 

[BKubu]

James, that would be helpful. Please provide the contact info. Thanks!

 

[M1075]

I found an old post which may help you. Not sure if these are the same size/style as what you need, but you can always send them an old one and they can duplicate it.

"I have used O Rings, Inc in Los Angeles, CA. When I couldn't find an original supplier of o-rings, I sent them one I had and they evaluated it and copied it for me. The original was red and a special compound. To save money, I had them use the standard material (black). They even have a part number now for the O-Ring (61 CL x .375 BN70). I think that just translates into 61" length, .375" diameter and Buna-N 70 Shore material. About $8 each. Contact Amanda @ 323-343-9500 or anelson@oringsusa.com. If you need some or want to have some made in a different size or material, she can help. I have referred several others to her and I think DMA251 put them on his 5 ton. See here: http://www.steelsoldiers.com/index.php?name=PNphpBB2&file=viewtopic&t=8361&postdays=0&postorder=asc

I also have contacts for new valve stems for the 2 piece rims, if needed."

 

[BKubu]

Thanks, James.

 

[steelsoldiers]

The .375" diameter ones look like the right size for the A1 rims, which take a fatter o-ring, about 3/8". I will get a pic of each and post them.

I meant to write 20x5/16" above, not 3/16.

 

[Rattlehead]

Has anyone tried using RTV in place of an O-ring?

 

[dma251]

I can second the recommendation to get it from O-Rings, Inc. I'm fixin' to make another order from them myself.

M1075 - please send me the info on getting my hands on a couple of the 2-piece wheel valve stems. I need two of them.

Re- RTV.... I wouldn't try it. No telling when or where it will decide to take leave....

 

[gringeltaube]

Has anyone tried using RTV in place of an O-ring?

Not RTV but PU-sealant (HD industrial type)… and no O-rings in my own tubeless 20x11" bolt-together wheels! (So far, with excellent results, after 3 years now...!)
I would say that it also works well for A3 wheels and in most other cases, specially if the grooves have already seen some corrosion. And it won't promote further corrosion like when using O-rings since it fills every little gap and porosity. As for "taking a leave", where would it go? Once cured it behaves like an extremely elastic rubber seal, perfectly molded in place…!
In case of having to replace a tire or fix a flat it takes only little effort with a drill and wire brush to remove old sealant and clean both halves prior to re-assembly. And thoroughly cleaning is something you want to do in any case…!

G.

 

[dma251]

to each, his own.

I'm just saying I wouldn't do it... Why, when a nice o-ring is re-usable, is cheap, installs with less equipment/supplies/cleanup, doesn't require wire-wheels, doesn't leave you wondering if you used the right sealant...

Flame-on....

 

[gringeltaube]

OK.... ...and I'm just saying that it worked well for me and why I see some advantages....

 

[Westech]

Joe has them but he is in Iraq right now....