| Manufacturer |
Challenger |
| Price |
- |
| Model |
MT425B |
| Equipment Type |
Utility Tractors |
| Factory |
Beauvais, France |
OCED TRACTOR TEST 2275 2
| Description |
Diesel 16-speed 4WD January 2005 - February 2005, Link: OCED Tractor Test 2275 file PTO performance Drawbar performance Gear 3TC used for power test Gear 2TC used for pull test |
| Max power |
48.5hp / 36.2kW |
| Fuel use |
3.9gal/hour / 14.8l/hour |
| Power at rated engine speed |
61.0hp / 45.5kW |
| Power at rated PTO speed |
59.7hp / 44.5kW |
| Max pull |
8385lbs / 3803kg |
CHALLENGER MT425B POWER
| Engine |
75hp / 55.9kW |
| PTO (claimed) |
60hp / 44.7kW |
| Drawbar (tested) |
48.5hp / 36.2kW |
| PTO (tested) |
61.7hp / 46.0kW |
ENGINE DETAIL
The Challenger MT425B features a robust Caterpillar 3054 diesel engine, delivering 75 hp with a notable displacement of 4.4L, which indicates good power-to-weight ratios and efficiency for moderate agricultural tasks. Its Tier 2 emissions compliance, while slightly outdated, ensures reliability for non-regulatory markets but may limit use in regions with stricter environmental regulations. The dual paper air cleaner enhances engine longevity, though operators should regularly check and replace these filters to maintain optimal performance, particularly in dusty conditions.
| Description |
Caterpillar 3054 diesel 4-cylinder liquid-cooled vertical,This engine was alternatively branded as a Perkins 1104C depending on market |
| Displacement |
268ci / 4.4L |
| Bore/Stroke |
4.134x5.00inches / 105x 127mm |
| Emissions |
Tier 2 |
| Power |
75hp / 55.9kW |
| Fuel system |
direct injection |
| Air cleaner |
dual paper elements |
| Compression |
19.3:1 |
| Rated RPM |
2200 |
| Starter volts |
12 |
CHALLENGER MT425B ENGINE
The Challenger MT425B is equipped with a robust Caterpillar 4.4L 4-cylinder diesel engine, offering excellent torque characteristics ideal for demanding field tasks. Its compact size enhances maneuverability in tight spaces, while the efficient fuel consumption can lead to reduced operational costs. However, be cautious of potential challenges related to maintenance and parts availability for specific components.
| Description |
Caterpillar 4.4L 4-cyl diesel |
TRANSMISSION
The Challenger MT425B's Autopower IV transmission offers a four-speed power shift capability across 16 forward and reverse gears, enhancing productivity during various field applications. The wet disc clutch allows for smooth engagement and prolonged durability under heavy loads, making it suitable for demanding agricultural tasks. However, the complexity of the transmission may require specialized knowledge for maintenance, posing a potential challenge for less experienced operators.
| Transmission |
Autopower IV |
| Type |
four speed power shift |
| Gears |
16 forward and reverse |
| Clutch |
wet disc |
| Description |
Four power shift gears in four ranges |
SPEEDS
| Description |
With 18.4R38 rear tires |
MECHANICAL
The Challenger MT425B tractor features a versatile 4x2 2WD or 4x4 MFWD 4WD chassis, offering adaptability for varying terrain conditions. Its hydraulic wet disc brakes provide enhanced stopping power and durability, ideal for heavy loads and demanding tasks. The optional cab and 16-speed four-speed power shift transmission enhance operator comfort and control, making it suitable for both agricultural and utility applications.
| Chassis |
4x2 2WD/4x4 MFWD 4WD |
| Steering |
power |
| Brakes |
hydraulic wet disc |
| Cab |
Cab optional |
| Transmission |
16-speed four speed power shift |
TRACTOR HITCH
POWER TAKE-OFF (PTO)
CHALLENGER MT425B TIRES
The Challenger MT425B tractor's tire specifications indicate a versatile configuration, with 2WD options featuring smaller Ag front tires (7.50-16) and larger 4WD tires (14.9R24) that enhance traction in diverse field conditions. The rear tires (18.4R34) provide substantial support for towing and heavier loads, making it suitable for both row crop and specialty applications. However, the choice between 2WD and 4WD affects maneuverability and fuel efficiency, with 4WD offering superior traction but potentially incurring higher operational costs.
| Ag front |
7.50-16 (2WD) / 14.9R24 (4WD) |
| Ag rear |
18.4R34 |
DIMENSIONS
| 2WD Weight |
8885lbs / 4030kg |
| 4WD Weight |
9515lbs / 4316kg |
DIMENSIONS & TIRES
The Challenger MT425B tractor has a weight range of 8,885 to 9,515 pounds, providing stability during heavy-duty operations while maintaining maneuverability. The tire specification of 7.50-16 at the front and 18.4R34 at the rear allows for effective traction in varied terrains, however, attention must be paid to proper tire inflation for optimum performance. This tractor is ideal for small to medium-sized agricultural tasks, balancing power with efficiency in tight spaces.
| Weight |
8885 to 9515 pounds |
| Front tire |
7.50-16 |
| Rear tire |
18.4R34 |
ELECTRICAL
| Ground |
negative |
| Battery volts |
12 |
