Guangxi Yuchai Group, located in Yulin, Guangxi province, was founded in 1951. It's one of the oldest and famous brands in China. 1. Reliable performance 2. Most competitive price 3. With ISO9001&CE certification 4. Spare parts are easy to get from market with much cheaper price. 5. Rigorous testing including 50%load, 75%load, 100% load and 110% load. Hengyun Power covers brands of Cummins, Perkins, Volvo, SDEC, Weichai, Yuchai, Marathon, Stamford, Leroy Somer, Siemens, etc.