Quick answer:
The Kubota M7-134 tractor tire size is front 540/65R28 and rear 18.4R38. Other tire setup data found for this model includes Front 14.9R28, Rear 18.4R38, so confirm the wheel option before ordering.
Front tire540/65R28
Rear tire18.4R38
Front/rear setupDifferent front and rear tire sizes
Rim diameter28 in front, 38 in rear
Ballast35 gal
Other setup foundFront 14.9R28, Rear 18.4R38
Kubota M7-134 Tire Size Details
| Front tire size | 540/65R28 |
|---|---|
| Rear tire size | 18.4R38 |
| Front/rear setup | Different front and rear tire sizes |
| Other tire setup found | Front 14.9R28, Rear 18.4R38 |
| Front tire construction | Metric radial |
| Rear tire construction | Imperial radial |
| Front section width | 540 mm |
| Rear section width | 18.4 in |
| Front aspect ratio | 65% |
| Front rim diameter | 28 in |
| Rear rim diameter | 38 in |
| Approx front overall diameter | about 55.6 in |
| Loaded rear tire ballast / fluid capacity | 35 gal |
Tire Size Comparison Chart
Front rim diameter comparison
Rear rim diameter comparison
Benchmarks use typical low, average and high rim diameters for the utility / row-crop / large ag tractor category, not scraped low/high outliers.
Kubota M7-134 Extra Tire Notes
| Tire size note | The Kubota M7-134 uses different front and rear tire sizes in this data: front 540/65R28 (28 in rim, 540 mm width) and rear 18.4R38 (38 in rim, 18.4 in width) |
|---|---|
| Multiple setup note | This data has more than one tire setup for the Kubota M7-134. The main front/rear listing is Front 540/65R28, Rear 18.4R38. Other setup data found: Front 14.9R28, Rear 18.4R38. This usually means different wheel, axle, turf/ag/industrial, or market options rather than one universal tire size |
| Ballast note | For the Kubota M7-134 rear 18.4R38 tires, the ballast figure captured in the answer is 35 gal. Liquid ballast capacity can change by tire brand, fill percentage, wheel setup and ballast fluid type |
Official information note
Mistakes do happen. Tire sizes can change by year, axle, wheel/rim option, tyre brand, tread type and local market. Please check the tire sidewall, operator manual and official kubotausa.com website for official information.



