Before entering provincial politics, Eichler served for eight years as the administrator of the Interlake School Division. He also owned and operated Prairie Farm Ranch Supply, an exporter of livestock handling equipment. In the latter capacity, he oversaw the invention of a device known as "The Stockdoctor", now used internationally. Eichler has also served as a director of the Prairie Implements Manufacturers Association and the Teulon Golf and Country Club, as well as serving as president of the Interlake Riding Club.[1]
In the 2003 Manitoba general election, Eichler was elected to the Manitoba legislature as a Progressive Conservative, defeating New Democrat Robert Marshall by 4102 votes to 3012.[2] He was only the third person to hold the riding in 81 years. For the first 47 years after the creation of the district, Douglas Lloyd Campbell had represented it, and following Campbell's retirement, Harry Enns represented it for 34 years. Eichler himself was nominated and elected following Enns' retirement.
The NDP government was re-elected in 2003, and Eichler sat in opposition until 2016.
On October 4, 2022 he announced he would not seek re-election in the 43rd provincial election and would serve the rest of his term.[9] He retired with the call of the 2023 election.
