The Yuchai YCA08 Marine Main Engine provides reliable and efficient power for inland transport vessels from 600 to 1,200 tons, as well as 20–30 meter pleasure boats and 15–25 meter fishing vessels. Yuchai designed this marine engine to deliver smooth operation, strong reliability, and excellent fuel economy for daily marine service.

Low Vibration and Noise

The YCA08 marine engine runs with low vibration and low noise, which improves onboard comfort during operation. At idle speed, noise levels remain below 75.1 dB. As a result, vessel operators benefit from smoother handling and a more comfortable driving environment.

High Reliability

Yuchai builds the YCA08 with an alloy cast iron cylinder block and cylinder head to achieve high structural strength. In addition, the engine uses an integral forged steel crankshaft with plain bearings. This design keeps the engine compact and lightweight while ensuring high reliability. Moreover, the overhaul interval exceeds 15,000 operating hours, which reduces lifecycle costs.

High Economic Efficiency

The Yuchai YCA08 Marine Main Engine applies four-valve technology together with Yuchai’s patented combustion chamber design. This combination optimizes the combustion process and allows precise control of fuel quantity and injection timing. Therefore, fuel atomization improves and combustion becomes more complete. As a result, the engine achieves a minimum fuel consumption of 190 g/kWh while maintaining strong and stable performance.