Image not recorded
RK TractorsModel A
RK Tractors RK55
Utility
- power
- 55 hp
- displacement
- 128 ci
- Cylinders
- 4
- Forward gears
- 16
Head to head · Utility
RK Tractors RK55 vs UTB/Universal 550
Image not recorded
UTB/UniversalModel B
UTB/Universal 550
Utility
- power
- 55 hp
- displacement
- 190 ci
- Cylinders
- 4
- Forward gears
- 12
RK TractorsRK Tractors RK55
vs
UTB/UniversalUTB/Universal 550
How they compare
Headline specs vs. the whole Utility
Engine Power
= Effectively tiedRK5555 hp
55055 hp
Median Utility Tractor55 hp
RK55 is in the 50th percentile; 550 is in the 50th · 5,383 models
Engine Displacement
▲ 550 higher · +62 ci (+48%)RK55128 ci
550190 ci
Median Utility Tractor183 ci
RK55 is in the 30th percentile; 550 is in the 51st · 5,580 models
Cylinders
= Effectively tiedRK554
5504
Median Utility Tractor4
RK55 is in the 50th percentile; 550 is in the 50th · 5,720 models
Forward Gears
▲ RK55 higher · +4 (+33%)RK5516
55012
Median Utility Tractor12
RK55 is in the 73rd percentile; 550 is in the 50th · 4,941 models
RK55 (A)550 (B)Median Utility Tractor
Full comparison
Every spec, side by side
General Information
| Spec | RK Tractors RK55 | UTB/Universal 550 | Difference |
|---|---|---|---|
| Manufacturer | RK Tractors | UTB/Universal | — |
| Model | RK55 | 550 | — |
| Category | Utility | Utility | Same |
Engine
| Spec | RK Tractors RK55 | UTB/Universal 550 | Difference |
|---|---|---|---|
| Manufacturer | Yanmar | UTB | — |
| Model | 4TNV86T-CR | Not recorded | — |
| Power Output | 55hp | 55hp | Same |
| Rated RPM | 2,800RPM | 2,400RPM | ▲ RK55+400 RPM · +17% |
| Cylinders | 4 | 4 | Same |
| Displacement | 128ci | 190ci | ▲ 550+62 ci · +48% |
| Bore | 3.4in | 3.7in | ▲ 550+0.3 in · +9% |
| Stroke | 3.5in | 4.3in | ▲ 550+0.8 in · +23% |
Transmission
| Spec | RK Tractors RK55 | UTB/Universal 550 | Difference |
|---|---|---|---|
| Type | Not recorded | Constant Mesh / Shuttle | — |
Dimensions & Weight
| Spec | RK Tractors RK55 | UTB/Universal 550 | Difference |
|---|---|---|---|
| Length | 141in | Not recorded | — |
| Width | 63.8in | Not recorded | — |
| Operating Weight | Not recorded | 4,600lb | — |
Hydraulics
| Spec | RK Tractors RK55 | UTB/Universal 550 | Difference |
|---|---|---|---|
| System Type | Not recorded | Open Center | — |
| Steering Type | Power | Power | Same |
Power Take-off (PTO)
| Spec | RK Tractors RK55 | UTB/Universal 550 | Difference |
|---|---|---|---|
| Type | Independent with electro-hydraulic clutch | Not recorded | — |
| Speed 1 | 540rpm | Not recorded | — |
Hitch & Towing
| Spec | RK Tractors RK55 | UTB/Universal 550 | Difference |
|---|---|---|---|
| Hitch Type | Not recorded | Three-Point Hitch | — |
| Hitch Category | I | II/I | — |
| Hitch Position | Not recorded | Rear | — |
| Hitch Capacity | 3,310lb | Not recorded | — |
Chassis & Drive
| Spec | RK Tractors RK55 | UTB/Universal 550 | Difference |
|---|---|---|---|
| Chassis Type | 4x4 MFWD 4WD | 4x2 2WD | — |
| Drive Type | 4WD | 2WD | — |
| Steering Type | Power | Power | Same |
| Brake Type | Wet disc | Not recorded | — |
Electrical
| Spec | RK Tractors RK55 | UTB/Universal 550 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric Starter | — |
Operator Station
| Spec | RK Tractors RK55 | UTB/Universal 550 | Difference |
|---|---|---|---|
| Type | Two-post ROPS | Open | — |
Category context
Both models against the field
Engine Power
median 55 hpA · 50th percentile (55 hp)B · 50th percentile (55 hp)
Engine Displacement
median 183 ciA · 30th percentile (128 ci)B · 51st percentile (190 ci)
Cylinders
median 4A · 50th percentile (4)B · 50th percentile (4)
Forward Gears
median 12A · 73rd percentile (16)B · 50th percentile (12)
A · RK55B · 550Median Utility Tractor