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Allis Chalmers Discussion Forum

D14 or D15

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Author  [Modern View]

12-06-2008 19:11:52

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I have a D17 and a D19. I just purchased a smaller D model AC with no decal. No power steering. Has bucket seat. I can't figure out whether it is a D14 or D15. What do you look for to tell the difference? In a serial number book, they appear to use the same number sequence. Thanks.

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John (C-IL)

12-07-2008 05:37:35

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 Re: D14 or D15 in reply to manytracs, 12-06-2008 19:11:52  
The serial number on a D14 starts with D14 an conversely the D15 serial number starts with D15.

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Jim Plunkett

12-07-2008 04:41:09

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 Re: D14 or D15 in reply to manytracs, 12-06-2008 19:11:52  
D15 has a shifter like a D17, D14 the shifter comes out from under the seat

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12-06-2008 19:51:06

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 Re: D14 or D15 in reply to manytracs, 12-06-2008 19:11:52  
According to Terry Dean's book, the D14 were 6volt electrical as standard, D15s were 12volt.
There weren't any D14 diesels.
D14 had the 149 cu in engine.
D15S1 had the 149 gas & LP (higher compression than the D14) or 175 for the diesel
D15S2 had the 160 gas & LP (and 175 diesel)
D15S2 had a dry air cleaner & fender-mounted lights.

As re the serial numbers, if your tractor's SN is above 24050, it's a D15.
Also, as near as I can tell from Norm Swinford's book, the Snap Coupler was optional only on the D15, not the D14.
Hope this helps.

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Stinky Cheese

12-10-2008 17:33:30

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 Re: D14 or D15 in reply to gatz, 12-06-2008 19:51:06  
It was the 3 point that was optional on the D-15. Both tractors had the snap coupler system.

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