WD-9 Engine s/n versus tractor s/n

sflem849 · Jan 26, 2012

Tractor 53491 1951
Engine 23379 It has a U casting code. So that would be 1949. Not original? Maybe it's a V and not a U?

D Slater · Jan 26, 2012

51 models have T,U or W date codes on castings.
49 model would have R or S. First letters are the year before castings not installed until the following year, most times on early in the year models. Not to up on 9 serial numbers but suspect yours is in the ball park because of all the gas engines that went into the 9 chassis.
Didn't explain that both U and W was used for 1951. Year started as U and for some reason IH changed the letter to W. Some say they found the letter V also but I never have. Saw a lot of W letters that didn't turn out very well to read.

Janicholson · Jan 26, 2012

I believe they were essentially identical until the
Supers were introduced. But if originality is
important, getting a 9 series engine with the right
dates, and a close # might be tough. I wonder what
the relationship of engine to frame serial was used.
Many engines were used in dozers and power units.
Jim

sflem849 · Jan 26, 2012

(quoted from post at 20:37:08 01/26/12) I believe they were essentially identical until the
Supers were introduced. But if originality is
important, getting a 9 series engine with the right
dates, and a close # might be tough. I wonder what
the relationship of engine to frame serial was used.
Many engines were used in dozers and power units.
Jim

When you have three blocks you might as well you "the most correct" one if they are all good. :lol: I think I will just stick with what is believed to be the original.

gene bender · Jan 27, 2012

S is 49

Farmallhal · Jan 27, 2012

I have a 1951 Farmall M with a T coded engine block along with numerous castings with either U or W on them. I believe the tractor to be a first quarter factory complete like late March or early April 1951 from some information provided here on this forum. The T casting date on the engine block is late October as I recall. The other early castings on the rest of the tractor up until early February are U codes and the later ones are W codes. I don't have any V codes on this tractor that I have found. This is an original factory correct tractor as it was never a couple of miles from where it was delivered in Iowa until I brought it to Missouri. I am the third owner and the first non-family member to own the tractor and know it's history very well. Just wanted to provide a real case scenario to support your response, Hal.

sflem849 · Jan 27, 2012

(quoted from post at 07:28:04 01/27/12) S is 49

Where is "the offical" chart? I always start at Z and go backwards bc it is easy to remember. That won't work if they skipped letters.

CNKS · Jan 27, 2012

S=49, T=1950, U,W=1951, possibilty of V in 1951, also.

WD-9 Engine s/n versus tractor s/n

sflem849

Well-known Member

D Slater

Well-known Member

Janicholson

Well-known Member

sflem849

Well-known Member

gene bender

Well-known Member

Farmallhal

Well-known Member

sflem849

Well-known Member

CNKS

Well-known Member

Similar threads