John Zimmers, 45, leaves Oakmont less than a year after the club played host to the U.S. Open in June for a record ninth time.
The new mower is powered by a 65-hp Kubota turbocharged, Tier 4 Final, common rail diesel engine.
The tractor boasts an articulating frame, which gives it a tight turning radius of only 43.5 inches.
Mark Chapleski is the new president of Troon International and Mitch Harrell is the new president of Troon Golf.
The CGCS qualification is the most widely recognised in the golf industry and the highest level of recognition that can be achieved by a greenkeeper.
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