The Hyundai D6CA engine is a 12,920 cc3 in-line, six-cylinder diesel engine with a turbocharger that can produce up to 440 horsepower.

installed on Aero Town buses and HD320/370, HD700, and HD1000 vehicles. Numerous factories in South Korea, China, India, Turkey, Slovakia, and the United States produce Hyundai engines. Hyundai automobiles are primarily supplied to the post-Soviet market with engines that are assembled in China; the majority of Korean and American engines are still sold domestically.
Specifications
| Manufacturer | Hyundai |
| Also called | D6CA |
| Production years | 2014 |
| Configuration | inline, 4-stroke, water-cooled diesel |
| Number of cylinders | 6 |
| Valves | 12 |
| Firing order | 1-5-3-6-2-4 |
| Piston stroke, mm | 155 |
| Cylinder bore, mm | 133 |
| Displacement, cc | 12920 |
| Power output, hp | 440 (1800 rpm) |
| Torque output, Nm / rpm | 1950/1400 |
| Compression ratio | 17.0:1 |
| Weight, kg | 1210 dry, 1265 wet |
