This page provides a detailed comparison of the specifications for the New Holland T7.550 and the New Holland T9.450.
| New Holland T7.550 | New Holland T9.450 | |
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| Engine | ||
| Engine Manufacturer | - | FPT |
| Engine Cooling Type | - | Liquid-cooled |
| Engine Fuel Type | - | Diesel |
| Engine Induction Type | Turbocharged/intercooled | Turbocharged aftercooled |
| Engine Cylinders | 6 | 6 |
| Engine Displacement Value | 412 ci (6.8 L) | 787 ci (12.9 L) |
| Engine Rated Rpm | 2200 | 2100 |
| Engine Power Output Value | 165 hp (123.0 kW) | 405 hp (302.0 kW) |
| Transmission | ||
| Transmission Type | 18x6 Power command full powershift | Full power shift |
| Transmission Forward Gears | 18 | 16 |
| Transmission Reverse Gears | 6 | 2 |
| Dimensions | ||
| Length Value | - | 295 |
| Width Value | - | 36.5 |
| Miscellaneous | ||
| Chassis | 4x4 (MFWD) | - |
| Drive Type | 4WD | - |
| Hitch Type | Cat II/IIIN | - |
| Hitch Category | - | Category 3 |
| Hitch Position | - | Rear |
| Hitch Capacity Value | 12787 lb (5800 kg) | 49500 lb (22453 kg) |
| Hydraulic System Type | - | Closed center load sensing |
| Starter Type | - | Electric |
