Standard Serial Numbers – Mike & Jen's Old Engines

Here is how to read some serial numbers to find out when your tractor was made.

The first two numbers are the last two numbers of the year that it was made.

The letter is for the model of the tractor (see list below).

The numbers after the letter are the consecutive unit number.

We will use this number as an example: 34Cxxx

The “34” means that it was made in 1934

The “C” means that it is a Standard Twin

The “xxx” is the consecutive unit number.

The first and third number are the last two numbers of the year that it was made.

The second number, the 0, has no meaning.

The letter is for the model of the tractor (see list below).

The last numbers are the consecutive unit number.

We will use this number as an example for the other way that the serial numbers were stamped: 309Cxxxx

The “3” and “9” mean that it was made in 1939

The “0” has no meaning

The “C” means the it is a Standard Twin

The “xxxx” is the consecutive unit number.

The letter in the serial number tells what model tractor you have.

The following is a list of the letters that we know of.

“C” = Standard Twin

“CF”= Viking Twin with Bread Box

“CG”= Viking Single Cylinder

“D”= Standard Walsh

“E”= Standard Monarch

“F”= Viking Twin

“K”= Kinkade (smaller)

“L” Kinkade (larger)

“TN” Standard Edgeton

If Your Serial Number Tag is Missing:

On the Standard, the Walsh, the Standard Monarch, The Standard Walsh, and the Kinkade the serial number is stamped on the flat machined surface around the oil fill plug. The serial number on the Standard Twin is stamped on a flat machined surface behind the carb, under where the cylinder bolts to the block. On real early tractors, there is a raised machine surface next to the oil cocks near the bottom of the engine block.