Quick answer:
The Kubota M135G tractor battery specs found are Group 31, 12 V, 13 × 6.81 × 9.44 in.
Battery sizeGroup 31
Voltage12 V
Case size13 × 6.81 × 9.44 in
Kubota M135G Battery Specs
| Battery size / group | Group 31 |
|---|---|
| Battery voltage | 12 V |
| Battery dimensions | 13 × 6.81 × 9.44 in |
Battery Spec Benchmarks
Voltage benchmark
Case length benchmark
Benchmarks are general reference ranges for utility tractor batteries.
Kubota M135G Battery FAQ
| Replacement battery recommendation | For the Kubota M135G tractor, use a battery that matches 12 V, 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. |
|---|---|
| Battery voltage found | The battery voltage found for the Kubota M135G tractor is 12 V. |
| Battery group size found | The battery group size found for the Kubota M135G tractor is Group 31. |
| Battery replacement steps | When swapping the Kubota M135G battery, match the replacement to 13 × 6.81 × 9.44 in and keep the same terminal layout. Shut the tractor down fully, remove negative first and positive second. After the new battery is seated and clamped, connect the positive cable first, followed by the negative cable. |
| Bad battery symptoms | For the Kubota M135G, a battery below the needed the normal CCA rating can show up as slow starter speed, random no-start issues, weak lights or repeated jump-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.

