The Cat 966K XE wheel loader is equipped with an advanced powertrain system and delivers up to a 25% fuel efficiency improvement. The unit utilizes an integrated Cat continuously variable transmission (CVT) system. A hydraulic pump and motor (variator unit), allows for a smooth and continuous gear ratio change between engine speed and machine speed. The variator provides this ratio flexibility while greatly reducing the heat load generated by the drive train when the machine is digging, pushing, and climbing under heavy load. The continuously variable gear ratio of the variator also enables the engine to run at a more efficient operating range independent of machine ground speed, according to the company.

Power is transmitted through the variator unit (versatile gear ratio) as well as a parallel mechanical gear path (highest efficiency). Power through the variator and mechanical paths are combined through a series of planetary gear sets in order maximize transmission efficiency.

The 966K XE is powered by a Cat C9.3 ACERT diesel engine, delivering a peak net horsepower rating of 290 hp. Meeting the European Union Stage IIIB emissions standards (interim Tier 4), the engine incorporates a high-pressure common rail injection system. The Cat Clean Emissions Module, which incorporates a diesel oxidation catalyst (DOC), a diesel particulate filter (DPF) and the Cat Regeneration System, functions automatically without interrupting the machine’s working cycle.

Developed especially for production loading for both 966K and 966K XE, Performance Series buckets are standard and deliver faster fill times and better material retention to reduce cycle time and improve productivity.

The 966K XE will be available in North America in the first quarter of 2013.