The Kubota BX23S tractor uses a 12-volt starting battery with a published rating of 560 CCA and 86 minutes of reserve capacity. The published battery designation is 26R-560. Its electrical setup uses negative ground.
ModelBX23S
YearsCurrent
Voltage12 V
ConfidenceHigh
Voltage
12 V
Cold cranking
560 CCA
Battery size
26R-560
How this battery compares
Benchmarked only against other compact/subcompact tractor models in this researched Kubota dataset.
Match case dimensions, terminal position and hold-down
ID
Model details
Identity and research coverage
Model
Kubota BX23S
Equipment class
Compact/Subcompact Tractor
Model years
Current
Research confidence
High
BUY
Choosing a replacement battery
Electrical rating and physical fit both matter
Use a 12V replacement that meets or exceeds the published 560 CCA rating, then match the original case dimensions, terminal orientation and hold-down.
1. Voltage
Keep the replacement at the verified system voltage.
2. Case size
Match tray length, width, height and hold-down style.
3. Terminal layout
Make sure the positive and negative posts are on the correct sides for the tractor's cables.
4. Starting power
Meet or exceed the published CCA when a model-specific CCA is confirmed.
5. Capacity
Match Ah and reserve capacity when those ratings are published, especially on higher-accessory-load tractors.
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What battery size fits the Kubota BX23S?
Quick answer
The published fitment is 26R-560. Match that designation plus the original terminal orientation, case dimensions and hold-down before buying a replacement.
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Why does the Kubota BX23S use a 560 CCA battery?
Quick answer
The published rating is 560 CCA, which is on the high side for the compact/subcompact tractor models in this dataset. That stronger starting reserve makes sense for a larger diesel or higher starting load. Do not replace it with a materially weaker battery just because it fits the tray.
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Can I use a higher-CCA battery in the Kubota BX23S?
Quick answer
Yes, but there is usually little benefit in going far above the already-high 560 CCA rating. Prioritize correct dimensions, terminal position and battery quality over chasing the biggest CCA number.
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What does the 86-minute reserve capacity mean on the Kubota BX23S?
Quick answer
The published reserve capacity is 86 minutes, roughly mid-range for comparable Kubota models in this dataset. It is a useful secondary spec when comparing otherwise similar replacement batteries.
Research note: Owner manual specifies 26R-560, RC 86 min, CCA 560, normal charging rate 8.6 A.
Disclaimer: Specifications are provided as a reference from published manufacturer, service-manual and reference information. Verify critical service values with Kubota or the correct service manual. Kubota website
