Serial Numbers for

BF Avery Model A

I have researched the serial number information through all of the manuals and salesman’s price books from the past years that I have worked in agricultural sales.  I also studied the differences of the tractors that I own and it is my opinion that the list of years along with serial number breaks and production changes are accurate as can be determined in the absence of the original factory records for these tractors…………….. Cork Lemmon, May 2007

Serial number is stamped on right frame rail below transmission shift lever. Engine serial number is stamped on plate on right side of crankcase.

Year ModelSerial Number Range
1943*1A000 - 1A844 *see note below
19431A845- 1A1497
19441A1498 - 4A785
19454A786 - 7A304
19467A305 - 9A865
19479A866 - 13A246
194813A247 - 17A455
194917A456 - 19A365
195019A366 - 20A114

*Note – These first 844 tractors may have been made by Cletrac in Ohio for Avery after the rights were puchased for the General and before the Avery plant was setup to produce the Model A tractors.

Changes Made at different serial numbers


Serial NumberChange Made
1A950 New style throttle lever
1A1328New style one piece drawbar
3A100Small Delco Remy generator
3A642New style clutch pedal
3A975Electric start & battery platform
4A932Cushion spring clutch plate
6A462New style oil filter and air cleaner
6A805New style tool box - cross ways
7A013New style battery box & cover
7A013Larger style Delco Remy generator and regulator
7A013Fuel tank bracket under tank
7A215Front wheel fork
7A270BF Avery medallion on Grill
7A270New style grill and hood
7A639New style air shaft cover
8A388Press steel rear wheel disc
8A445New style U-joint
8A6011XB3 Engine
8A601Hydraulic syste and rock shaft
8A895New style front wheel - steel
9A901Foot brakes; Message from Brad Hall that his A S/N 9A900 has hand brakes so foot brakes did not start until at least S/N 9A901
16A640New style front fork for dual wheel and wide front end
18A195 New style hydraulic control and rock shaft
18A742Foot rest and support
18A742Frame channel and rear cross member changed