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Kenworth S-12


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By aaronk - Sunday, September 26, 2010 9:15 AM
I saw this W900 S-12 at the NW Chapter Fall Meeting/Show yesterday. This is the first S-12 I've seen in person. Can anyone tell me more about the S-12 model? All I've heard is it was available with the W9 and C8 series and has a 112" BBC. Thanks.

- Aaron

By Bill White - Sunday, September 26, 2010 10:08 AM
Must be for the set back axel???.................Bill

We will have to wait and see if someone else has this Knowledge
By John Woge - Sunday, September 26, 2010 3:19 PM
Don't think I know any more than you.....we had a '72 W-925 S-12. It was the first KW conv. we had. NTC 350, 13sp, 4.33s on torsion bars, 36" sleeper. I got a chance to drive it on a few short trips when i was fresh out of high school. Can't tell ya much about it..except it was a big deal to a kid that age. LOL

Here's one that was for sale here locally a few years ago....he might still have it. $2500 ? IIRC

John
By 1955 kw bullnose - Sunday, September 26, 2010 3:43 PM
isnt the S-12 just a W900 with a set back axle?

here is one more.

 
By Bill White - Sunday, September 26, 2010 3:51 PM
John,

I just looked at a 1971 K-W redi mix truck and it was the same truck, reading the ad you have on them makes sense 112" bumper to back of cab..........Bill
By John Woge - Sunday, September 26, 2010 4:57 PM
I would guess that the frames would be different from a W-9** S-12,2 to a C-8** S-12,2. There was also a C-500 that used the same hood...but the listings I have don't show any C-500s with the S-12,2 suffixes...so I'm assuming the S-12, S-2 is just for the BBC on the C-800 and W-900 with the C-500 using only one 122" BBC( had an extended bumper)??

 Justin, Thats what I thought too..but there is also a C-800 S-12 and 2.

I would've guessed the truck Aaron posted to be a C and not a W.....so I sure don't know difference by just the outside appearance.

I'm sure that someone will know and straighten us out....

John
By dclerici - Sunday, September 26, 2010 5:01 PM
In the early '70's KW ran a back cover ad in CCJ, Go West, and probably Overdrive about the S-12. Promoted it as an inter-city tractor, able to do the highway and get around the tight city streets.
By Bill White - Sunday, September 26, 2010 5:27 PM
S 2 is 102" bumper to back of cab.........Bill
By aaronk - Sunday, September 26, 2010 8:11 PM
John Woge (9/26/2010)

 Justin, Thats what I thought too..but there is also a C-800 S-12 and 2.

I would've guessed the truck Aaron posted to be a C and not a W.....so I sure don't know difference by just the outside appearance.

I'm sure that someone will know and straighten us out....

John


Justin - The W900 S-12 could very well be just a set-back front axle W900 as far as I know. What is the BBC of a standard length hood W9?

John - I'm not entirely sure it's a W900, but it had drop rails which makes me think it's a W900. I think the C series has a continuous rail from bumper to end of frame. I believe the C500 has straight rails and the C800 has a variable-section frame, which the drawings in the ad show.

Hopefully someone has a definitive answer.
By wigovsky - Sunday, September 26, 2010 8:53 PM
Kenworth W900 S-2 - http://www.trucksplanet.com/catalog/model.php?id=160

Kenworth W900 S-12 - http://www.trucksplanet.com/catalog/model.php?id=159

Kenworth C800 S-2 - http://www.trucksplanet.com/catalog/model.php?id=199

Kenworth C800 S-12 - http://www.trucksplanet.com/catalog/model.php?id=198
By tundra - Sunday, September 26, 2010 11:20 PM
knowa a few a them things .....lottsa em aval ta purchase ...

...

...way too ugly fer me [dont like most any kinna set back axle thing.....includin the ;;;newer ones;;]

...

..even passed up onna raider recently  [cause it wassa set back axle]

...

...maybe cool ferra vocational truck .....not cool ferra over the road truck though...

...way i look at at ...

...if the front steer tyres donts almost touch the front bumper [a straight bumper at that......onna at least a  standard or ext hood truck]
.....if not ......then ia aint much interested...

....

been lookin ferra k100 arodyne .......but all i can find issa  k110E ....that have the specs iam lookin for......aint agreed onna deal yet .....i know how ta put the front axle were it belongs though ...[not that tuff ta do]
...
...no set back front axles fer me...

...
...in my small world anyway......lol
By Chris_M_Budke - Monday, September 27, 2010 2:09 AM
Hey Jim, Here's one to match your '76 A-model..... Bicentennial K-100 on Craiglist. Looks like it would take a mountain of cash to restore it. Pull that Cum-apart out and put yourself a buzzin dozen in. :cool: I'm sure your gal in Alaska wouldn't mind yet another truck sittin' in the yard. :D
By MikeHarbison - Monday, September 27, 2010 12:13 PM
A local construction/crane & rigging company had a S-12 when I was a kid.They had a lot across from our house and I used to move trucks for the owner when he didn't have any of his drivers around.It had a 335 with an air 4x4 and a 36" bunk.Don't know where it ever ended up,but his stuff was all pretty well used and abused.
By Doug Blevins - Monday, September 27, 2010 5:41 PM
Chris_M_Budke (9/27/2010)
Hey Jim, Here's one to match your '76 A-model..... Bicentennial K-100 on Craiglist. Looks like it would take a mountain of cash to restore it. Pull that Cum-apart out and put yourself a buzzin dozen in. :cool: I'm sure your gal in Alaska wouldn't mind yet another truck sittin' in the yard. :D


Cant believe this truck is (or was if it sold) sitting 100 miles from my house! I would love to have it if the interior is all there, then it needs the Bicentennial paint job put back on! I have a spare cummins motor needs to be parked in my yard! i am gonna call the guy tomarrow and see if he still has it and if he is interested in some trades! I have some other stuff i wouldnt mind trading for the K-100!.................Doug
By Doug Blevins - Tuesday, September 28, 2010 12:46 PM
Well I called and talked to the guy with the Bicentennial K100, he still has it as of this AM, said there was supposed to be a guy from NorCal come by to look at it today. I asked about the engine, he said the previous owner had the top end done, new heads rebuilt jakes, then spun a bearing. He runs a towing co off of I-40 in Moriority NM and he said the truck was on the road working 5 months ago, when it broke down thats how he got it. He said its all there but missing the headliner in the cab, and missing the pass. seat, still has the liberty bell plaque on the Wood grain dash.I asked him if he were interested in some trades, he said depends on what all I got, I described a few things I wouldnt mind trading, he told me to call back this Friday, if the other guy doesnt buy the truck, he will hop on his Harley make a quick road trip to come check out what I got to trade, (120 miles door to door) so in the long run I just might own another K100, and a collector truck at that! Probably have ta part with some of my other "treasures" (wife wouldnt mind if they all went down the road)............Doug
By Chris_M_Budke - Tuesday, September 28, 2010 4:05 PM
Good luck Doug! Hope it finds its way to your yard. :cool:
By aaronk - Tuesday, September 28, 2010 4:22 PM
Standard length hood W900 has a BBC of 116.5", so the S-12 is a little shorter. I wonder what years KW made the S-12.
By Tatra - Tuesday, September 28, 2010 6:26 PM
A predecessor to the T800, that's what it looks like to me. Would have done well in Israel (narrow, twisting lanes) but I don't think we had regular import of KWs back then...

Cheers,

T
By Doug Blevins - Saturday, October 02, 2010 8:21 AM
[quote]Rick Knox (10/2/2010)
DOUG! Friday has come and gone, whats the latest?

Rick, I decided not to call him back, I got to thinking about all the work I need to do on the other 4 trucks that are sitting in the yard, not to mention I had said nothing about this truck to the boss (wife) I would love to have this truck as it is a piece of history, and the fact that there were only 50 cabovers made, even if it needs less work than my other trucks it just is not the right time to be dragging another one home! He was more interested in cash $$$ than trades, and probably nothing I have would be good enough (except for the stuff I wont part with, like my Dads ol 61 KW) He also has a 52, or 53 KW that he wants an arm and a leg for, I think about $15,000, might still call him I was going to send him some pics of my trading material, but his internet is down for a while, will let you know if things change!.....Doug
By Doug Blevins - Saturday, October 02, 2010 9:27 AM
Ok, went ahead and called, he said the guy that was supposed to come look at it didnt show, still sitting in his yard. He said he is too busy to come look at my junk, said he would rather have cash anyway ( I kinda figgured that allready) He said he hasnt had much interest in the bicentennial, has had way more calls on the 52 KW He keeps saying its a "long hood" and its 6' longer than a regular hood, but I looked at the pic on Craigslist, looks normal to me! He says everyone wants it for next to nothing, I didnt want to tell him the Cabover is probably worth more than the Conventional! Guess he saw a couple old KW's in Trucktrader that were listed at an outragous price, so his ought to be worth the same!(he is asking $15,000) I told him if I had $5,500 I would take the Cabover, but I am pretty much broke, so unless I win some money in the Lotto I wont be bringing the truck to my house! I asked him what State the Bicentennial was named for, he didnt know, but said he has a "book" that came with the truck, and it is supposed to be the 13th one built, maybe someone else will know? Oh well, guess it wasnt meant to be!..............Doug