PLANO, TX—Toyota will invest $383 million in four of its U.S. assembly plants to support the production of four-cylinder engines, including options for hybrid electric vehicles.

“Toyota customers want vehicles that are fuel-efficient and electrified,” says Norm Bafunno, senior vice president for unit manufacturing and engineering at Toyota. “These investments will allow us to meet customer needs and quickly respond to an evolving market. We are committed to investing in the U.S., and our teams are ready to take on this new challenge.”

Toyota’s assembly plant in Huntsville, AL, will receive $222 million. The plant will create a new production line with the capacity to produce four-cylinder engines for both combustion and hybrid electric powertrains. The facility will expand its footprint by 114,000 square feet, which marks the plant’s sixth building expansion since 2003. The plant has the capacity to build 900,000 engines annually and represents a nearly $1.5 billion investment.

Toyota’s assembly plant in Georgetown, KY, will get $16 million. The factory is expanding the flexibility of its engine line, which will better position the plant to meet customer demand. The plant’s powertrain facility can produce up to 600,000 units annually. The plant is the company’s largest plant globally, producing seven Toyota and Lexus models, as well as four-cylinder and six-cylinder powertrains. Overall, the plant represents an $8.5 billion investment.

Toyota’s assembly plant in Troy, MO, is getting $109 million. The investment will provide new equipment to build engine heads on three production lines. The plant has the capacity to build more than 3 million cylinder heads annually and represents a $564 million investment.

Toyota’s assembly plant in Jackson, TN, will receive $36 million. The factory will update equipment to build new engine blocks. The plant has the capacity to produce more than 2 million blocks annually and represents a $425 million investment.

Last year, Toyota announced new investments totaling $5.1 billion in its U.S. manufacturing operations to support electrification efforts. Toyota’s U.S. plants produce half of the vehicles it sells in the U.S.