In signing Kamara who is tenth on the all time MLS scorers table, Vancouver now have a powerful centre forward who should fit into head coach Carl Robinson's setup that relies heavily on crosses and set pieces.
With 98 goals in 286 MLS appearances over 11 seasons, the Whitecaps will be the six-foot-three, 190-pound Kamara's seventh stop in North America after also playing for Norwich City and Middlesbrough in England.
"It's all about feeding the striker," said Kamara, who has added five goals in 12 playoff games. "I want that pressure on me."
The Whitecaps will be looking to build on a 2018 season that saw them reach the Western Conference semifinal before bowing out to the Seattle Sounders in a two-game aggregate series where Vancouver registered just one tepid shot on target.
Kamara had a career-high 22 goals for Columbus in 2015 to help the Crew reach the MLS Cup final, and has scored a dozen times each of the last two seasons.