The Kubota GM73 tractor tire size is front 6.00-12 and rear 16.9-30. Other tire setup data found for this model includes Front 9.5-24, Rear 16.9-28; Front 9.5-24, Rear 16.9-30; Front 16.9-30, Rear 9.5-24, so confirm the wheel option before ordering.
Front tire6.00-12
Rear tire16.9-30
Front/rear setupDifferent front and rear tire sizes
Tire pressure20 PSI, 25 PSI
Rim diameter12 in front, 30 in rear
Ballast35 gal
Other setup foundFront 9.5-24, Rear 16.9-28; Front 9.5-24, Rear 16.9-30; Front 16.9-30, Rear 9.5-24
Kubota GM73 Tire Size Details
Front tire size
6.00-12
Rear tire size
16.9-30
Front/rear setup
Different front and rear tire sizes
Other tire setup found
Front 9.5-24, Rear 16.9-28
Replacement tire size
Front 9.5-24, Rear 16.9-30
R1 ag tire size
Front 16.9-30, Rear 9.5-24
Front tire construction
Bias/imperial tire
Rear tire construction
Bias/imperial tire
Front section width
6 in
Rear section width
16.9 in
Front rim diameter
12 in
Rear rim diameter
30 in
Tire pressure
20 PSI, 25 PSI
Loaded rear tire ballast / fluid capacity
35 gal
Tire Size Comparison Chart
Front rim diameter comparison
This model
12 in
Average
18 in
Low
12 in
High
28 in
Rear rim diameter comparison
This model
30 in
Average
28 in
Low
18 in
High
38 in
Benchmarks use typical low, average and high rim diameters for the compact / utility tractor category, not scraped low/high outliers.
Kubota GM73 Extra Tire Notes
Tire size note
The Kubota GM73 uses different front and rear tire sizes in this data: front 6.00-12 (12 in rim, 6 in width) and rear 16.9-30 (30 in rim, 16.9 in width)
Multiple setup note
This data has more than one tire setup for the Kubota GM73. The main front/rear listing is Front 6.00-12, Rear 16.9-30. Other setup data found: Front 9.5-24, Rear 16.9-28; Front 9.5-24, Rear 16.9-30; Front 16.9-30, Rear 9.5-24. This usually means different wheel, axle, turf/ag/industrial, or market options rather than one universal tire size
Pressure note
For the Kubota GM73 with front 6.00-12 and rear 16.9-30 tires, the pressure values captured in the answer are 20 PSI, 25 PSI. Tire pressure is load-dependent, so use this as a reference value rather than a universal setting
Ballast note
For the Kubota GM73 rear 16.9-30 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.
