| Manufacturer | Challenger |
| Price | - |
| Model | MT545 |
| Equipment Type | Row-Crop Tractors |
| Factory | Beauvais, France |
OCED TRACTOR TEST 1878 2
| Description | Diesel 32-speed 4WD October 1999 - November 1999, Link: OCED Tractor Test 1878 file PTO performance Drawbar performance Gear 4TB used for power test Gear 4TA used for pull test |
| Power at rated engine speed | 120.5hp / 89.9kW |
| Fuel use | 7.7gal/hour / 29.1l/hour |
| Power at rated PTO speed | 126.2hp / 94.1kW |
| Max power | 113.6hp / 84.7kW |
| Max pull | 10,925lbs / 4955kg |
CHALLENGER MT545 POWER
| PTO (claimed) | 120hp / 89.5kW |
| Drawbar (tested) | 113.6hp / 84.7kW |
| PTO (tested) | 120.5hp / 89.9kW |
ENGINE DETAIL
The Challenger MT545 features a robust Caterpillar 3056 turbocharged diesel engine with a substantial 6.0L displacement, offering high torque for demanding agricultural tasks. Its 16.0:1 compression ratio ensures efficient combustion, while the dual paper air cleaner enhances engine longevity by ensuring optimal air filtration. Given its rated 2200 RPM, this tractor operates effectively in mid-range power applications, ideal for heavy tillage or transport tasks in various farm scenarios.
| Description | Caterpillar 3056 turbocharged diesel 6-cylinder liquid-cooled vertical |
| Displacement | 365ci / 6.0L |
| Bore/Stroke | 3.937x5.00inches / 100x 127mm |
| Air cleaner | dual paper elements |
| Compression | 16.0:1 |
| Rated RPM | 2200 |
| Starter volts | 12 |
CHALLENGER MT545 ENGINE
The Challenger MT545 features a robust Caterpillar 6.0L 6-cylinder diesel engine, providing reliable power for heavy-duty applications. With a sizable cab fuel tank of 59.4 gallons and a ROPS fuel tank of 42.3 gallons, it offers extended operational range, beneficial for long fieldwork. However, the weight distribution and overall fuel efficiency may need consideration depending on the intended use and terrain conditions.
| Description | Caterpillar 6.0L 6-cyl diesel |
| Cab Fuel tank | 59.4gal / 224.8L |
| ROPS Fuel tank | 42.3gal / 160.1L |
TRANSMISSION
The Challenger MT545 tractor features a sophisticated AutoPower IV transmission, enhancing efficiency with its 32 forward and reverse gears, providing superior adaptability for various field conditions. The partial power shift design allows smooth gear transitions, particularly beneficial when operating in uneven terrain or during high-torque applications. However, the hydraulic wet disc clutch may require regular maintenance to ensure longevity, which could pose a challenge for some operators.
| Transmission | AutoPower IV |
| Type | partial power shift |
| Gears | 32 forward and reverse |
| Clutch | hydraulic wet disc |
| Description | Four synchronized gears (1-4) in two synchronized ranges (low/high) with a four-speed (A-D) power shift on the left-hand power shuttle lever |
MECHANICAL
The Challenger MT545 tractor features a versatile 4x2 or 4x4 configuration, enhancing traction and stability in various terrain conditions, making it ideal for both agricultural and construction applications. Its hydraulic wet disc braking system provides reliable stopping power, especially under heavy loads, while the 32-speed partial power shift transmission allows for precise speed control and efficient operation in different field scenarios. The optional air-conditioned cab enhances operator comfort during extended use, though the added weight of the cab may slightly impact overall maneuverability in tight spaces.
| Chassis | 4x2 2WD/4x4 MFWD 4WD |
| Steering | power |
| Brakes | hydraulic wet disc |
| Cab | Cab optional with air-conditioning |
| Transmission | 32-speed partial power shift |
HYDRAULICS
| Type | closed center pressure flow compensated (PFC) |
| Pressure | 2900psi / 200.0bar |
| Valves | 2 to 4 |
| Total flow | 28gpm / 106.0lpm |
TRACTOR HITCH
| Rear Type | II |
| Rear lift (at 24 | 9000lbs / 4082kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 540/1000 |
CHALLENGER MT545 TIRES
The Challenger MT545 tractor features versatile tire options with 11.00-16 (2WD) or 16.9R28 (4WD) in the front and 208R38 in the rear, enhancing traction and stability. The choice between 2WD and 4WD allows for optimized operation in various agricultural scenarios, where 4WD is advantageous in wet or uneven terrain. However, the 2WD may provide better fuel efficiency on flat, dry ground, making it essential to evaluate field conditions when selecting the configuration.
| Ag front | 11.00-16 (2WD)/16.9R28 (4WD) |
| Ag rear | 208R38 |
DIMENSIONS
| Wheelbase | 108.3inches / 275cm |
| Length | 179inches / 454cm |
| Width | 88inches / 223cm *Minimum width |
| Height (cab) | 109inches / 276cm |
CHALLENGER MT545 WEIGHT
| 2WD ROPS Shipping | 10082lbs / 4573kg |
| 4WD ROPS Shipping | 11285lbs / 5118kg |
| 2WD Cab Shipping | 10633lbs / 4823kg |
| 4WD Cab Shipping | 11437lbs / 5187kg |
DIMENSIONS & TIRES
The Challenger MT545 features a wheelbase of 108.3 inches, providing stability during operation, especially in uneven terrain, ideal for varying agricultural tasks. Weighing between 10,082 to 11,437 pounds enhances its traction and load-bearing capabilities, which is beneficial in heavy tillage and planting scenarios. The combination of 11.00-16 front tires and 208R38 rear tires offers a balanced approach for performance and flotation, though tire selection may impact soil compaction depending on field conditions.
| Wheelbase | 108.3inches / 275cm |
| Weight | 10082 to 11437 pounds |
| Front tire | 11.00-16 |
| Rear tire | 208R38 |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |