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Cummins Westport

Cummins Westport designs, engineers, and markets 6 to 12 litre spark-ignited automotive natural gas engines for commercial transportation applications such as truck and buses.

Weichai Westport

Weichai Westport develops, manufactures, and sells advanced natural gas engines (and relevant parts and kits) for use in automobiles, buses, heavy-duty trucks, marine applications and power generation.