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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 RK Tractors RK55S
RK TractorsModel B
RK Tractors RK55S
Utility
- power
- 55.1 hp
- displacement
- 128 ci
- Cylinders
- 4
- Forward gears
- 16
RK TractorsRK Tractors RK55
vs
RK TractorsRK Tractors RK55S
How they compare
Headline specs vs. the whole Utility
Engine Power
▲ RK55S higher · +0.1 hp (<1%)RK5555 hp
RK55S55.1 hp
Median Utility Tractor55 hp
RK55 is in the 50th percentile; RK55S is in the 50th · 5,383 models
Engine Displacement
= Effectively tiedRK55128 ci
RK55S128 ci
Median Utility Tractor183 ci
RK55 is in the 30th percentile; RK55S is in the 30th · 5,580 models
Cylinders
= Effectively tiedRK554
RK55S4
Median Utility Tractor4
RK55 is in the 50th percentile; RK55S is in the 50th · 5,720 models
Forward Gears
= Effectively tiedRK5516
RK55S16
Median Utility Tractor12
RK55 is in the 73rd percentile; RK55S is in the 73rd · 4,941 models
RK55 (A)RK55S (B)Median Utility Tractor
Full comparison
Every spec, side by side
General Information
| Spec | RK Tractors RK55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Manufacturer | RK Tractors | RK Tractors | Same |
| Model | RK55 | RK55S | — |
| Category | Utility | Utility | Same |
Engine
| Spec | RK Tractors RK55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Manufacturer | Yanmar | Yanmar | Same |
| Model | 4TNV86T-CR | 4TNV86T-CR | Same |
| Power Output | 55hp | 55.1hp | ▲ RK55S+0.1 hp · <1% |
| Rated RPM | 2,800RPM | 2,800RPM | Same |
| Cylinders | 4 | 4 | Same |
| Displacement | 128ci | 128ci | Same |
| Bore | 3.4in | 3.4in | Same |
| Stroke | 3.5in | 3.5in | Same |
Transmission
| Spec | RK Tractors RK55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Type | Not recorded | Mechanical shuttle | — |
Dimensions & Weight
| Spec | RK Tractors RK55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Length | 141in | 141in | Same |
| Width | 63.8in | 63.8in | Same |
| Height | Not recorded | 102in | — |
| Operating Weight | Not recorded | 3,814lb | — |
Hydraulics
| Spec | RK Tractors RK55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Steering Type | Power | Power | Same |
Power Take-off (PTO)
| Spec | RK Tractors RK55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Type | Independent with electro-hydraulic clutch | Not recorded | — |
| Speed 1 | 540rpm | Not recorded | — |
Hitch & Towing
| Spec | RK Tractors RK55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Hitch Category | I | I | Same |
| Hitch Capacity | 3,310lb | Not recorded | — |
Chassis & Drive
| Spec | RK Tractors RK55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Chassis Type | 4x4 MFWD 4WD | 4x4 MFWD 4WD | Same |
| Drive Type | 4WD | 4WD | Same |
| Steering Type | Power | Power | Same |
| Brake Type | Wet disc | Not recorded | — |
Electrical
| Spec | RK Tractors RK55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
Operator Station
| Spec | RK Tractors RK55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Type | Two-post ROPS | ROPS | — |
Category context
Both models against the field
Engine Power
median 55 hpA · 50th percentile (55 hp)B · 50th percentile (55.1 hp)
Engine Displacement
median 183 ciA · 30th percentile (128 ci)B · 30th percentile (128 ci)
Cylinders
median 4A · 50th percentile (4)B · 50th percentile (4)
Forward Gears
median 12A · 73rd percentile (16)B · 73rd percentile (16)
Length
median 137 inA · 56th percentile (141 in)B · 57th percentile (141 in)
A · RK55B · RK55SMedian Utility Tractor