The seat pan on my H16 has a bolt pattern of 8"w x 3"L and looks like that it was jimmied to the seat spring that has a hole pattern of 7.5"w x 7"L. Do you all know which one is correct ?
I appears that either the seat pan or seat spring are not original.
The seat spring fits my fender pan. I am with you Doc I think that the seat pan is off somthing else, I can't seem to find any info on the bolt patterns though. DARN,,,,,,,ITI appears that either the seat pan or seat spring are not original.
If I had to guess I'd say the green seat is not original to that tractor.
I wish I had a tractor I could go out and measure for you but I dont.