The Challenger MT425B, MT445B, MT455B, and MT465B are versatile agricultural tractors designed for global agricultural markets. These tractors are engineered for reliability and operator comfort, offering a range of horsepower from approximately 80 to 120 PTO HP. They are well-suited for a variety of farm tasks, emphasizing fuel efficiency and robust performance. The MT400B series represents a solid mid-range offering, built to meet the demands of farmers, agricultural contractors, and smallholding owners.

This Operator's Instruction Book provides essential information for the safe and efficient operation and basic maintenance of your Challenger MT400B series tractor. It covers fundamental aspects of engine, transmission, chassis, and electrical systems, along with safety guidelines and operational procedures. The manual details basic maintenance tasks, including fluid checks and lubrication, and offers preliminary troubleshooting guidance for common operational issues. Its purpose is to empower owners and technicians to maintain the tractor's performance and longevity.