John Deere 8570-8970

For the year 1993, a new Power-Plus series, the 70-series, was introduced, consisting of models 8570/250 hp, 8770/300 hp, 8870/350 hp, and 8970/400 hp. The engines were equipped with electronic injection pump control. The power had increased slightly compared to the 60-series, and there was still an additional 25 hp boost available over the stated power. Both of the middle models featured the familiar 10.1-liter engine. The 8570 was equipped with JD's 7.6-liter engine and the 8970 with Cummins' 14.0-liter engine. The basic transmission was a 12-speed Syncro. For an additional price, a PowrSync quick shift was available. The three largest models could also be equipped with a 12-speed full powershift.

A new feature was Field Cruise Control, which maintained a constant speed regardless of changing conditions. A radar-based onboard computer was available as an option. The cab was mostly unchanged, but the noise level had again been reduced slightly. The two largest models had four-wheel brakes. The 70-series tractors could be equipped with triple wheels, meaning three wheels could be mounted on each corner.

Speeds in mph

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