The three-time defending AL champions sent right-hander Walker Lockett and infielder Sam Haggerty to New York in exchange for Plawecki, who played in 78 games — 64 starts — for the Mets last season. Plawecki batted .201 with seven homers and a career-high 30 RBIs.
The Indians were in the market for a catcher after trading All-Star Yan Gomes to the Washington Nationals in December. Plawecki will likely platoon with Roberto Perez. The Mets acquired veteran catcher Wilson Ramos in December.
Plawecki, 27, spent six weeks last season on the disabled list with a broken left hand. He threw out 23 percent (16 for 70) of potential base stealers and had two four-RBI games.
Plawecki played at Purdue and was the Big Ten Player of the Year in 2012 before the Mets drafted him with the No. 35 overall pick.