This page provides a detailed comparison of the specifications for the David Brown 990 Implematic and the International Harvester 424. The specifications are categorized into four main sections: Engine, Transmission, Dimensions, and Miscellaneous. By comparing these two tractors side by side, you can easily identify the similarities and differences between them and determine which one best suits your needs.
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David Brown 990 Implematic
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International Harvester 424
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| Images | No images available | No images available |
| Engine | ||
| Engine - Manufacturer | David Brown | International Harvester |
| Engine - Model | - | C-146 (Gasoline), BD-154 (Diesel) |
| Engine - Cooling Type | Liquid-cooled | Liquid-cooled |
| Engine - Cylinder Orientation | - | - |
| Engine - Valve Configuration | - | - |
| Engine - Fuel Type | Diesel | Gasoline, Diesel |
| Engine - Induction Type | - | - |
| Engine - Cylinders | 4 | 4 |
| Engine - Displacement (ci) | 185.8 ci | 145.3 ci (Gasoline), 154 ci (Diesel) |
| Engine - Bore (in) | 3.62 in | 3.39 in (Gasoline), 3.50 in (Diesel) |
| Engine - Stroke (in) | - | - |
| Engine - Rated RPM | 2200 RPM | 2000 |
| Engine - Power Output (hp) | 52 hp | 37.0 HP (Gasoline), Unknown (Diesel) |
| Transmission | ||
| Transmission - Type | Gear / Partially Synchronized | Sliding gear with dry disc clutch |
| Transmission - Forward Gears | 12-Jun | 8 |
| Transmission - Reverse Gears | - | - |
| Transmission - Total Gears | - | - |
| Dimensions | ||
| Length (in) | 117.7 | 120.9 |
| Width (in) | 66.9 | 66.9 |
| Height (in) | 55.9 | 56.7 |
| Operating Weight (lb) | 4272 lbs | 4,057 |
| Miscellaneous | ||
| Chassis | 4x2 2WD | 4x2 2WD |
| Drive Type | 2WD | 2WD |
| Steering Type | Manual or Hydrostatic Power (Optional) | Power assist |
| Coolant Capacity (qts) | 14.4 qts | - |
| Front Tire Diameter (in) | - | - |
| Front Tire Width (in) | - | - |
| Rear Tire Diameter (in) | - | - |
| Rear Tire Width (in) | - | - |
| Front/Rear Rim Diameter (in) | - | - |
| Tire Type | Standard Ag | Ag |
| Manufacture - End Year | 1965 | 1967 |
| Hitch Type | - | Three-point |
| Hitch Category | - | - |
| Hitch Position | Rear | Rear |
| Hitch Capacity (lb) | - | - |
| Operator Station Type | Open Operator Station | Open |
| Starter Type | Electric | Electric |
| PTO Type | Transmission or Live (Optional) | Live |
| PTO Speed 1 (rpm) | 540 rpm | 540 |
| PTO Speed 2 (rpm) | 1000 rpm | - |
| PTO Speed 3 (rpm) | - | - |
| Brake Type | Differential Mechanical Expanding Shoe | Differential mechanical dry disc |
| Hydraulic System Type | Open Center | - |
