Challenger MT645B - Horsepower, Weight, Specs, Problems, Price & More

Engine

The engine is a Sisu 74ETA turbocharged diesel 6-cylinder 24-valve liquid-cooled vertical inline with a displacement of 449ci / 7.4L and bore/stroke of 4.251x5.278inches / 108x 134 mm. It has a power output of 235hp / 175.2kW and a compression ratio of 17.5:1. The engine is equipped with dual paper elements air cleaner and a 1000W coolant heater (optional). The rated rpm is 2200 and the starter voltage is 12. The oil capacity is 20qts / 18.9L and the coolant capacity is 35.6qts / 33.7L.

Transmission

The transmission is a continuously variable transmission (CVT) which provides an infinite number of gear ratios. This allows for smooth and efficient power transfer to the wheels. The CVT also allows for precise speed control and reduces fuel consumption. The transmission is designed to handle the high power output of the engine and provide reliable performance in all conditions. It is easy to operate and provides smooth shifting.

Brakes

The brakes are hydraulic wet disc brakes which provide reliable stopping power. They are designed to handle the high power output of the engine and provide consistent performance in all conditions. The brakes are easy to operate and provide smooth and responsive stopping power. The hydraulic system is designed to provide reliable performance and is easy to maintain.

Steering

The steering is powered by a Sisu 7.4L 6-cylinder diesel engine. It provides precise and responsive steering control and is designed to handle the high power output of the engine. The steering system is easy to operate and provides smooth and responsive steering control. It is designed to provide reliable performance in all conditions.

Common Problems

Users have reported issues with the cab suspension and automatic climate control. Some users have also reported issues with the hydraulic system. However, these issues are rare and can be easily resolved with proper maintenance and repair. Overall, the Challenger MT645B is a reliable and durable tractor that provides excellent performance in all conditions.

What Users Like

Users appreciate the large front and rear tires (380/85R34 and 480/80R46) which provide excellent traction and stability. They also appreciate the four-wheel drive, power steering, and hydraulic wet disc brakes which provide reliable performance in all conditions. The cab is standard with heat and A/C, and users appreciate the optional pneumatic cab suspension and automatic climate control which provide a comfortable and ergonomic working environment.

Challenger MT645B Technical Specifications

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