The Doosan Group was founded in 1896. The company began as the Park Seung Jik Store in 1896 in Baeogai (now Jongno 4-ga, Seoul). Since then, Doosan has developed into a multinational conglomerate, with particular emphasis on consumer goods, manufacturing and the trading and construction sectors. Doosan Infracore (formerly Daewoo Heavy Industries & Machinery, a company specializing in construction machinery) in 2005. Doosan Infracore produces construction equipment, engines, attachments, and utility equipment such as air compressors.
| No. | Engine Family | Output Range (Prime Power Applications) | Number of Cylinders | |
|---|---|---|---|---|
| kVA | kWE | |||
| 1 | 066 Series | 82 - 144 | 65 - 92 | 6 (In Line) |
| 2 | 086 Series | 153 - 228 | 123 - 183 | 6 (In Line) |
| 3 | 126 Series | 274 - 304 | 219 - 243 | 6 (In Line) |
| 4 | 158 Series | 365 - 526 | 292 - 421 | 8 (V) |
| 5 | 180 Series | 571 - 635 | 457 - 508 | 10 (V) |
| 6 | 222 Series | 642 - 744 | 513 - 595 | 12 (V) |
