Skid-steer loaders

M-400 was adapted from the M-200 by adding a rear axle. With four-wheel drive, it was the world’s first skid-steer loader. What made the skid-steer unique was the use of two independent transmissions that allowed it to turn in its tracks. The new loader was 6 inches longer than the M-200 and - with some tweaking - would eventually achieve a 70-30 front to rear weight ratio for optimal skid-steer performance.

M-440 was the first Bobcat-branded skid-steer loader. With a 15.5 hp Kohler 2-cylinder engine, it had a rated capacity of 1100 lb. It was a totally new design, with the drive system enclosed in side tanks that featured an oil bath for lubrication. The design change allowed the operator to enter the loader from the front.

By 1969 the company built its 10,000th loader.

Louis Keller's 371 model, nicknamed "Mini Bob", was unveiled at the 1970 Dealers Convention in Phoenix, Arizona.