KubotaModel A
Kubota KB21X
Utility
- power
- 20.7 hp
- displacement
- 68.5 ci
- Cylinders
- 3
- Forward gears
- 36
Head to head · Utility
Kubota KB21X vs White Field Boss 21
Image not recorded
WhiteModel B
White Field Boss 21
Utility
- power
- 21 hp
- displacement
- 71.4 ci
- Cylinders
- 3
- Forward gears
- 12
KubotaKubota KB21X
vs
WhiteWhite Field Boss 21
How they compare
Headline specs vs. the whole Utility
Engine Power
▲ Field Boss 21 higher · +0.3 hp (+1%)KB21X20.7 hp
Field Boss 2121 hp
Median Utility Tractor55 hp
KB21X is in the 9th percentile; Field Boss 21 is in the 9th · 5,383 models
Engine Displacement
▲ Field Boss 21 higher · +2.9 ci (+4%)KB21X68.5 ci
Field Boss 2171.4 ci
Median Utility Tractor183 ci
KB21X is in the 8th percentile; Field Boss 21 is in the 10th · 5,580 models
Cylinders
= Effectively tiedKB21X3
Field Boss 213
Median Utility Tractor4
KB21X is in the 23rd percentile; Field Boss 21 is in the 23rd · 5,720 models
Forward Gears
▲ KB21X higher · +24 (+200%)KB21X36
Field Boss 2112
Median Utility Tractor12
KB21X is in the 99th percentile; Field Boss 21 is in the 50th · 4,941 models
KB21X (A)Field Boss 21 (B)Median Utility Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Kubota KB21X | White Field Boss 21 | Difference |
|---|---|---|---|
| Manufacturer | Kubota | White | — |
| Model | KB21X | Field Boss 21 | — |
| Category | Utility, Sub-Compact | Utility | — |
Engine
| Spec | Kubota KB21X | White Field Boss 21 | Difference |
|---|---|---|---|
| Manufacturer | Kubota | Isuzu | — |
| Model | D1105 | Not recorded | — |
| Power Output | 20.7hp | 21hp | ▲ Field Boss 21+0.3 hp · +1% |
| Rated RPM | 2,600RPM | 2,600RPM | Same |
| Cylinders | 3 | 3 | Same |
| Displacement | 68.5ci | 71.4ci | ▲ Field Boss 21+2.9 ci · +4% |
| Bore | 3.1in | 3in | ▲ KB21X+0.1 in · +3% |
| Stroke | 3.1in | 3.4in | ▲ Field Boss 21+0.3 in · +10% |
Transmission
| Spec | Kubota KB21X | White Field Boss 21 | Difference |
|---|---|---|---|
| Type | Power shift | Manual | — |
Dimensions & Weight
| Spec | Kubota KB21X | White Field Boss 21 | Difference |
|---|---|---|---|
| Length | 92.3in | 106in | ▲ Field Boss 21+13.7 in · +15% |
| Width | 44.5in | 42.9in | ▲ KB21X+1.6 in · +4% |
| Height | 74.8in | 75.2in | ▲ Field Boss 21+0.4 in · <1% |
| Operating Weight | 1,609lb | 1,584lb | ▲ KB21X+25 lb · +2% |
Hydraulics
| Spec | Kubota KB21X | White Field Boss 21 | Difference |
|---|---|---|---|
| System Type | Not recorded | Open Center | — |
| Steering Type | Power | Manual | — |
Hitch & Towing
| Spec | Kubota KB21X | White Field Boss 21 | Difference |
|---|---|---|---|
| Hitch Type | Category 0 | Three-Point Hitch | — |
| Hitch Category | Category 3 | I | — |
| Hitch Position | Rear | Rear | Same |
Chassis & Drive
| Spec | Kubota KB21X | White Field Boss 21 | Difference |
|---|---|---|---|
| Chassis Type | 4x4 MFWD 4WD | 2WD | — |
| Drive Type | 4WD | 2WD | — |
| Steering Type | Power | Manual | — |
Electrical
| Spec | Kubota KB21X | White Field Boss 21 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric Starter | — |
Operator Station
| Spec | Kubota KB21X | White Field Boss 21 | Difference |
|---|---|---|---|
| Type | ROPS | Open | — |
Category context
Both models against the field
Engine Power
median 55 hpA · 9th percentile (20.7 hp)B · 9th percentile (21 hp)
Engine Displacement
median 183 ciA · 8th percentile (68.5 ci)B · 10th percentile (71.4 ci)
Cylinders
median 4A · 23rd percentile (3)B · 23rd percentile (3)
Forward Gears
median 12A · 99th percentile (36)B · 50th percentile (12)
Operating Weight
median 5,303 lbA · 7th percentile (1,609 lb)B · 7th percentile (1,584 lb)
A · KB21XB · Field Boss 21Median Utility Tractor