The Kubota M135A tractor battery specs found are Group 31, 12 V (verify with operator manual), 13 × 6.81 × 9.44 in.
Battery sizeGroup 31
Voltage12 V (verify with operator manual)
Case size13 × 6.81 × 9.44 in
Kubota M135A Battery Specs
Battery size / group
Group 31
Battery voltage
12 V (verify with operator manual)
Battery dimensions
13 × 6.81 × 9.44 in
Battery Spec Benchmarks
Voltage benchmark
This model
12 V
Average
12 V
Low
12 V
High
12 V
Case length benchmark
This model
13 in
Average
11.3 in
Low
9.38 in
High
13 in
Benchmarks are general reference ranges for utility tractor batteries.
Kubota M135A Battery FAQ
Replacement battery recommendation
For the Kubota M135A tractor, use a battery that matches Group 31, case size around 13 × 6.81 × 9.44 in. Also match the terminal layout, hold-down style and battery tray clearance before buying. A 12 V battery is shown as a fallback, so verify the voltage in the operator manual before ordering.
Battery voltage shown
The battery voltage shown for the Kubota M135A tractor is 12 V (verify with operator manual). This was filled because the page had other battery specs but no clear voltage answer.
Battery group size found
The battery group size found for the Kubota M135A tractor is Group 31.
Battery replacement steps
For a clean Kubota M135A battery replacement, compare the old battery against the new one for Group 31, terminal position and tray clearance. Power the tractor down, remove the key, disconnect negative before positive, then lift the battery out carefully. Set the new battery in place, tighten the hold-down and reconnect positive before negative.
Bad battery symptoms
If the Kubota M135A is fitted with Group 31 and the battery is failing, the first clues are usually hard starting, quick voltage drop, clicking from the starter solenoid and unreliable cold starts.
Official information note
Mistakes do happen. Check the operator manual, service manual and official kubotausa.com website for official battery specifications before buying parts.
