Massey-Harris - Pacemaker & Challenger
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The Massey-Harris Pacemaker and Challenger tractors were introduced in 1936. As a development of the company's U-framed tractor series, both models were based on the MH 12-12. Engine modifications increased output to 17bhp at the drawbar or 27bhp on the belt and a new four-speed transmission was now fitted. The Pacemaker was the standard design and the Challenger was the first Massey-Harris row-crop model, with a high-clearance frame and rear-wheel adjustment. In 1938, updated versions of the Pacemaker and Challenger were introduced with a completely new look, with the familiar lines of the old Wallis series being replace by a more fashionable rounded styling. Massey-Harris called the new tractor the Steam-lined Pacemaker and gave it a bright red finish.