Umpleby, a member of the board and CEO since Jan. 1, 2017, is widely credited for pulling the company out of its longest downturn - from 2012 to 2016 - when sales dropped more than 40 percent.
Deerfield, Illinois-based Caterpillar, which boosted its full-year profit outlook twice in 2018, announced the closure of two facilities earlier this year and was also considering closing an engine plant that could eliminate 880 jobs.
Doug Oberhelman, the company`s last executive chairman, retired on March 31, 2017.
The industry bellwether also said on Thursday its November retail sales rose 16 percent worldwide, led by a jump in orders across all geographies, especially in North America and Asia Pacific.
(This article has not been edited by Zeebiz editorial team and is auto-generated from an agency feed.)