There should be a number stamped into the top of the trans housing behind the raised portion of the steering clutch adjustment area. I have seen some of these far enough back that the seat box covers it up. Hope this helps.
Thanks I'll try to find it.
HI There is a second place the number might be. It is on the crankcase by the lifters for cylinder #4. I am going to try and include a picture. Also I have included a picture of where it is on the trani case.![]()
I.m not too familiar with the 20 but the SNID book I have shows a 20 tractor SN that starts out at L-1 & up
Thanks mucho! I found the S/N in both places, by the valve lifters on cyl 4 and on the transmission housing. The number was 4085 which places it as manufactured in Peoria. I saw a list at Tulare of the dates of manufacture broken down by serial nembers. Does anybody have that list for the big cat 20?
Just bringing this post to the top so I do not have to repost my pictures.
Thanks
Ken
Hello drarv,
Your big "20", Serial No L 4085 is not correct as the tractors in
question were only built from 1927 and discontinued in 1929, with a total
of only 1,970 "L" series tractors built numbered from 1. they were followed by the "PL" series
which came into production during 1928 and were discontinued in 1932.,
with a total of 6,598 tractors built. I hope that this helps.
Regards
Alan T. Lewis
Christchurch
NEW ZEALAND
Refreshing post
Thanks
Ken