Serial number plate on the front right of the tractor frame, above the front axle
1982
345029
1983
346464
1984
347542
1985
348359
1986
349009
ELECTRICAL
Ground
negative
Charging system
alternator
Charging amps
90
Batteries
2
Battery volts
12
Battery AH
88
About John Deere Tractor
The 4240S model tractor is one of John Deere's 9R line of tractors. The 4240S is a type, which is used mostly in Agriculture Tractors. The engine of the 4240S tractor generates. This configuration is more practical in the real world.