For more than two decades, Challenger tractors have been hard at work in some of the world’s most demanding and challenging conditions. Whether it’s involved hauling supplies over the ice in Antarctica, building roads and interstate highways or pulling a chisel plow or air seeder on the Country’s most productive farms, Challenger tractors have been providing power and productivity at new levels of efficiency.

Now, Challenger is pushing the limits even further with the introduction of the MT900C four-wheel-drive articulated tractors that are loaded with new features and improvements designed to make you even more productive and efficient.

• New digital dash display that’s easier to read and now indicates selected gear, ground speed and service hours.
• Redesigned Tractor Management Center that provides simpler, more intuitive operation.
• New hydraulic system with a higher degree of control, higher flow and greater adaptability.
• An integrated ISOBUS control system that helps optimize productivity and performance of the tractor and any attached ISOBUS compliant implements.
• New horsepower levels that push the MT900C models to a new plateau…where they continue to reign as the highest-horsepower, commercially available tractors in the world.

Stretch the limits on horsepower

Featuring the latest ACERT technology, the Cat engines used in the MT900C Series meet all mandated Tier III emissions requirements…without sacrificing performance, durability or reliability.

Equally important the Cat C15 and C18 used in the MT900C Series have already proven to be both efficient and reliable in literally thousands of off-road applications by Caterpillar and a host of other heavy equipment and truck manufacturers.

The Challenger MT945C and MT955C each feature a Cat C15 diesel engine with a 15.2-liter (923-cu.-in) displacement, while the MT965C and MT975C boast a massive 18.1-liter (1,106-cu.-in.) Cat C18 ACERT diesel — the largest displacement agricultural tractor engine on the market.

With up to 42% engine torque rise, the Cat C15 and C18 ACERT engines deliver exceptional pulling power in all conditions. Under heavy loads, the MT975C has the ability to generate more than 630 engine horsepower (470 kW) — more than any other articulated tractor in its class.

The ADEM 4 electronic control system enables smooth power delivery by coordinating communication between the engine and transmission electronic control modules, taking diesel engine performance even further.

• A more efficient fuel system allows for multiple injections during each combustion cycle. Small amounts of fuel are injected at precise times to achieve the combined goals of fuel economy and lower emissions.
• Mid-support of the cylinder liners decreases vibration, which, in turn, reduces engine noise and wear on the cylinders and cylinder liners.

Shift to greater productivity

The Cat-built 16F X 4R electronically controlled powershift transmissions used in the MT900C were specifically designed for four-wheel-drive applications. It was extensively tested in tough, real-world situations, both locally and overseas before it was ever released to production. Moreover, it has been proven reliable in literally hundreds of thousands of hours of field use. Still, nothing is left to chance. So every powertrain is retested at the factory to ensure it meets Challenger specifications before going into an MT900C Series tractor.

Eight gears in the popular 6.5 to 14.9 km/h operating range provide the responsiveness and productivity your applications need. Closely spaced gear splits, concentrated in the primary working range, were designed with the engine torque rise and operating rpm in mind to deliver the most usable power. Pre-select any starting gear up to 10th gear forward; then shift sequentially, using the buttons on the transmission lever. You can also program any forward gear between one and seven as the default starting gear. Once set, it remains in the memory, even after power down.

The optimum balance of strength and agility

There’s a fine balance involved in building the world’s most powerful 4-wheel-drive articulated tractor. It needs to be heavy enough to transmit the horsepower to the ground — a maximum operating weight of 27,216 kg on the largest MT900C Series models means that the power and the tractor are staying on the ground. Yet, the unit needs to offer enough flotation to prevent compaction.

The Challenger MT900C Series offers the best of both worlds. We started with the widest, heaviest frame in the industry to serve as the foundation for performance. The front portion features Challenger’s proven bathtub style frame to support the engine and transmission, while the rear section is comprised of a rugged, fabricated steel assembly. Then, we added the largest diameter driveline in the industry to ensure that the weight and horsepower are delivered to the ground.

• Tri-point oscillation provides 13 degrees of movement for even distribution of forces through the frame, less component stress and greater reliability.
• Axles are pressure lubed from the transmission sump to reduce friction and power loss while ensuring constant wear protection.
• Disc brakes on each axle provide impressive stopping power to restrain heavy loads.
• Heavy-duty, dual-sealed bearings surround both ends of the largest articulation pin in the industry for extreme reliability and performance and minimal wear.
• Extra-large axle housings provide the structural support to withstand heavy loads and rough terrain.
• The largest standard axles in the industry — at 145 mm provide maximum durability and strength.
• An electro-hydraulic differential lock on each axle means that maximum power is available when it is needed most.

From the rugged MT900C Series’ Cat-built transmission, speed and horsepower are efficiently routed to the front and rear differentials for maximum performance and minimal loss of horsepower. At that point, precision-ground gear sets ensure quiet and reliable power transfer to the axles, where dual inboard planetary final drives reduce power loss and provide added strength.

A higher standard in hydraulic power

Challenger MT900C Series tractors are as big on hydraulic power as they are on raw horsepower, meeting not only today’s demanding standards, but those expected in the future.
Equipped with a redesigned closed-center, load-sensing, pressure flow compensating system, MT900C models offer an industry-leading 224 l/min pump as a standard for truly demanding applications.

The new TMC display is used to control all remote implement valves allowing the operator to electronically adjust flow rates; adjust timed detents, and precisely adjust individual valve operation. The redesigned system, which utilizes a separate controller built into each valve, even allows the operator to direct continuous flow up to 136.3 l/min through any one coupler. This is particularly important in applications like sowing, where uninterrupted oil flow is critical.

Hitch options to match every need

All MT900C Series models offer the option of a Category 3/4N or Cat. 4 3-point hitch with a lift capacity of 8,845 kg to handle even the largest mounted implements. With draft and slip sensors, the 3-point hitch automatically adjusts to changing field conditions to keep you running even in the toughest situations

A 1,000 rpm PTO is optional on all MT900C Series models. In addition to a 20-spline, 1 3/4” shaft, it features electronic control through a wet multi-disc clutch and hydraulic actuation for smooth modulation and system protection.

Welcome to your new office

Designed by ergonomic experts, with the help of farmers like you, the MT800C/MT900C cab offers more comfort, convenience and control than ever imagined.

Like the tractor itself, it boasts an impressive size, thanks to 108 cubic feet (3.06 m3) of space — more cubic feet of luxury than most all others in its power class. Even more valuable than the size and comfort, though, is the new ISOBUS electronic control system, which uses the Tractor Management Center (TMC) display as the operator interface. The result is greater simplicity, more information and unprecedented peace-of-mind.

An aristocratic ride is just the beginning of the comfort features you’ll find in the MT800C/MT900C Series’ spacious cab. Take a seat and look around at some of the other amenities:

• Ergonomically designed right-hand Tractor Management Center (TMC) with controls organized by function.
• A new dash with digital displays for all major tractor and engine functions, including the selected gear, engine RPM and machine hours.
• Tilt and telescopic steering column.
• A large temperature-controlled storage compartment keeps your lunch cool or warm.
• Additional storage that includes a coat hook, a literature storage area and a compartment beneath the instructional seat.
• A wide assortment of management, comfort and convenience features, including a mobile phone holder and outlet; a set of four radio speakers, front sun visor, and a power pack of additional electrical outlets.

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