Daihatsu Infinearth Mfg.Co.,Ltd manufactures and sells marine engines, land engines, and industrial instruments in Japan, China, the Rest of Asia, Central America, South America, and internationally. Its marine engine products include propulsion systems, electric propulsion systems, auxiliary systems, and dual-fuel engines, as well as marine engines for nitrogen oxide regulations. The company's land engines comprise land diesel engines and gas turbines/gas engines for emergency power generation/pumping; and co-generation systems. Its industrial instruments include aluminum wheels, oil mist detectors and monitors, and doughnut RD couplings. The company is also involved in real estate leasing business; transportation, warehouse management, precision components, and contracting businesses; and solar power generation business. The company was formerly known as Daihatsu Diesel Mfg. Co., Ltd. and changed its name to Daihatsu Infinearth Mfg.Co.,Ltd in May 2025. Daihatsu Infinearth Mfg.Co.,Ltd was founded in 1907 and is headquartered in Osaka, Japan.