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Head to head · Utility
Oliver 550 vs Oliver 990
OliverOliver 550
vs
OliverOliver 990
How they compare
Headline specs vs. the whole Utility
Engine Power
▲ 990 higher · +17.1 hp (+39%)55044.3 hp
99061.4 hp
Median Utility Tractor55 hp
550 is in the 38th percentile; 990 is in the 56th · 5,383 models
Engine Displacement
▲ 990 higher · +58 ci (+37%)550155 ci
990213 ci
Median Utility Tractor183 ci
550 is in the 42nd percentile; 990 is in the 59th · 5,580 models
Cylinders
▲ 550 higher · +1 (+33%)5504
9903
Median Utility Tractor4
550 is in the 50th percentile; 990 is in the 23rd · 5,720 models
Forward Gears
= Effectively tied5506
9906
Median Utility Tractor12
550 is in the 11th percentile; 990 is in the 11th · 4,941 models
550 (A)990 (B)Median Utility Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Oliver 550 | Oliver 990 | Difference |
|---|---|---|---|
| Manufacturer | Oliver | Oliver | Same |
| Model | 550 | 990 | — |
| Category | Utility | Utility, Standard Tread | — |
Engine
| Spec | Oliver 550 | Oliver 990 | Difference |
|---|---|---|---|
| Manufacturer | Oliver | General Motors | — |
| Model | Not recorded | Mar-71 | — |
| Power Output | 44.3hp | 61.4hp | ▲ 990+17.1 hp · +39% |
| Rated RPM | 2,000RPM | 1,800RPM | ▲ 550+200 RPM · +11% |
| Cylinders | 4 | 3 | ▲ 550+1 · +33% |
| Displacement | 155ci | 213ci | ▲ 990+58 ci · +37% |
| Bore | 3.6in | 4.3in | ▲ 990+0.7 in · +19% |
| Stroke | 3.8in | 5in | ▲ 990+1.2 in · +32% |
Transmission
| Spec | Oliver 550 | Oliver 990 | Difference |
|---|---|---|---|
| Type | Gear | Gear | Same |
Dimensions & Weight
| Spec | Oliver 550 | Oliver 990 | Difference |
|---|---|---|---|
| Length | 120in | Not recorded | — |
| Height | 58in | Not recorded | — |
| Operating Weight | 3,730lb | 11,000lb | ▲ 990+7,270 lb · +195% |
Hydraulics
| Spec | Oliver 550 | Oliver 990 | Difference |
|---|---|---|---|
| System Type | Open center | Not recorded | — |
| Steering Type | Power assist | Power | — |
Power Take-off (PTO)
| Spec | Oliver 550 | Oliver 990 | Difference |
|---|---|---|---|
| Type | Independent | Independent | Same |
| Speed 1 | 540rpm | 540rpm | Same |
| Speed 2 | 1,000rpm | Not recorded | — |
Hitch & Towing
| Spec | Oliver 550 | Oliver 990 | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Not recorded | — |
| Hitch Category | I | Not recorded | — |
| Hitch Position | Rear | Not recorded | — |
Chassis & Drive
| Spec | Oliver 550 | Oliver 990 | Difference |
|---|---|---|---|
| Chassis Type | 4x2 | 4x2 2WD | — |
| Drive Type | 2WD | 2WD | Same |
| Steering Type | Power assist | Power | — |
| Brake Type | Differential mechanical dry disc | Disc | — |
Electrical
| Spec | Oliver 550 | Oliver 990 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
Operator Station
| Spec | Oliver 550 | Oliver 990 | Difference |
|---|---|---|---|
| Type | Open | Open | Same |
Category context
Both models against the field
Engine Power
median 55 hpA · 38th percentile (44.3 hp)B · 56th percentile (61.4 hp)
Engine Displacement
median 183 ciA · 42nd percentile (155 ci)B · 59th percentile (213 ci)
Cylinders
median 4A · 50th percentile (4)B · 23rd percentile (3)
Forward Gears
median 12A · 11th percentile (6)B · 11th percentile (6)
Operating Weight
median 5,303 lbA · 32nd percentile (3,730 lb)B · 88th percentile (11,000 lb)
A · 550B · 990Median Utility Tractor