McCormick IntlModel A
McCormick Intl GM55
Utility
- power
- 54.2 hp
- displacement
- 122 ci
- Cylinders
- 4
- Forward gears
- 16
Head to head · Utility
McCormick Intl GM55 vs RK Tractors RK55S
RK TractorsModel B
RK Tractors RK55S
Utility
- power
- 55.1 hp
- displacement
- 128 ci
- Cylinders
- 4
- Forward gears
- 16
McCormick IntlMcCormick Intl GM55
vs
RK TractorsRK Tractors RK55S
How they compare
Headline specs vs. the whole Utility
Engine Power
▲ RK55S higher · +0.9 hp (+2%)GM5554.2 hp
RK55S55.1 hp
Median Utility Tractor55 hp
GM55 is in the 49th percentile; RK55S is in the 50th · 5,383 models
Engine Displacement
▲ RK55S higher · +6 ci (+5%)GM55122 ci
RK55S128 ci
Median Utility Tractor183 ci
GM55 is in the 29th percentile; RK55S is in the 30th · 5,580 models
Cylinders
= Effectively tiedGM554
RK55S4
Median Utility Tractor4
GM55 is in the 50th percentile; RK55S is in the 50th · 5,720 models
Forward Gears
= Effectively tiedGM5516
RK55S16
Median Utility Tractor12
GM55 is in the 73rd percentile; RK55S is in the 73rd · 4,941 models
GM55 (A)RK55S (B)Median Utility Tractor
Full comparison
Every spec, side by side
General Information
| Spec | McCormick Intl GM55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Manufacturer | McCormick Intl | RK Tractors | — |
| Model | GM55 | RK55S | — |
| Category | Utility | Utility | Same |
Engine
| Spec | McCormick Intl GM55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Manufacturer | Yanmar | Yanmar | Same |
| Model | 4TNV84T | 4TNV86T-CR | — |
| Power Output | 54.2hp | 55.1hp | ▲ RK55S+0.9 hp · +2% |
| Rated RPM | 2,800RPM | 2,800RPM | Same |
| Cylinders | 4 | 4 | Same |
| Displacement | 122ci | 128ci | ▲ RK55S+6 ci · +5% |
| Bore | 3.3in | 3.4in | ▲ RK55S+0.1 in · +3% |
| Stroke | 3.5in | 3.5in | Same |
Transmission
| Spec | McCormick Intl GM55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Type | Creeper | Mechanical shuttle | — |
Dimensions & Weight
| Spec | McCormick Intl GM55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Length | 132in | 141in | ▲ RK55S+9 in · +7% |
| Width | 55in | 63.8in | ▲ RK55S+8.8 in · +16% |
| Height | Not recorded | 102in | — |
| Operating Weight | 3,263lb | 3,814lb | ▲ RK55S+551 lb · +17% |
Hydraulics
| Spec | McCormick Intl GM55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Steering Type | Not recorded | Power | — |
Tires
| Spec | McCormick Intl GM55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Front Tire Size | 280/70R16 | Not recorded | — |
| Rear Tire Size | 360/70R24 | Not recorded | — |
Hitch & Towing
| Spec | McCormick Intl GM55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Hitch Type | Category I | Not recorded | — |
| Hitch Category | Not recorded | I | — |
Chassis & Drive
| Spec | McCormick Intl GM55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Chassis Type | 4x4 MFWD 4WD | 4x4 MFWD 4WD | Same |
| Drive Type | 4WD | 4WD | Same |
| Steering Type | Not recorded | Power | — |
Electrical
| Spec | McCormick Intl GM55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
Operator Station
| Spec | McCormick Intl GM55 | RK Tractors RK55S | Difference |
|---|---|---|---|
| Type | Not recorded | ROPS | — |
Category context
Both models against the field
Engine Power
median 55 hpA · 49th percentile (54.2 hp)B · 50th percentile (55.1 hp)
Engine Displacement
median 183 ciA · 29th percentile (122 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)
Operating Weight
median 5,303 lbA · 26th percentile (3,263 lb)B · 34th percentile (3,814 lb)
A · GM55B · RK55SMedian Utility Tractor