The John Deere 420 battery size is listed as Group 24F, 12 V, 335 CCA, 10.25 × 6.81 × 8.88 in.
Battery sizeGroup 24F
Voltage12 V
CCA335 CCA
Case size10.25 × 6.81 × 8.88 in
John Deere 420 Battery Specs
Battery size / group
Group 24F
Battery voltage
12 V
Battery CCA
335 CCA
Battery dimensions
10.25 × 6.81 × 8.88 in
Battery Spec Comparisons Chart
CCA comparison
This model
335 CCA
Average
839.52 CCA
Low
150 CCA
High
1850 CCA
Voltage comparison
This model
12 V
Average
11.54 V
Low
6 V
High
24 V
Case length comparison
This model
10.25 in
Average
11.3 in
Low
9.38 in
High
13 in
John Deere 420 Battery FAQ
Replacement battery recommendation
The best replacement battery for a John Deere 420 tractor is the John Deere StrongBox battery, which is designed to meet demanding specifications and provide reliable performance. These batteries are built tough and tested for durability in real-life conditions
Battery voltage
The official battery voltage for the John Deere 420 tractor is 12 volts
Battery group size
The official battery group size for the John Deere 420 tractor is BCI Group Size 24F. This battery is designed for compact and utility tractors, providing high power for small-to-medium diesel engines
Battery CCA
The recommended official John Deere 420 tractor battery has a Cold Cranking Amps (CCA) rating of 335 CCA
Battery location
The battery on the John Deere 420 tractor is located under the seat. You may need to remove the seat or access panel to reach it
Battery replacement steps
To replace the battery on a John Deere 420 tractor, first remove the clutch pedal if it obstructs the battery tray, then take out the battery by sliding it out of the tray. Make sure to reconnect the battery terminals securely after placing the new battery in the tray
Official information note
Mistakes do happen. Please check official deere.com website for official information.
