Weichai WD615 Diesel Engine – Heavy-Duty 9.7L Turbocharged Truck Engine

The Weichai WD615 is a proven heavy-duty inline 6-cylinder turbo diesel engine designed for commercial trucks, construction equipment, buses, power generation systems, and industrial applications. Manufactured by Weichai Power, the WD615 series is one of the most widely used diesel engine platforms in heavy transport and industrial operations. The engine was originally developed from Austrian Steyr technology and became a core platform for medium and heavy-duty vehicles. The WD615 features a 9.726-liter displacement, direct injection fuel system, turbocharging, and intercooling technology engineered to provide strong torque output, reliable fuel economy, and dependable performance under demanding operating conditions. Power ratings across the WD615 family typically range from approximately 300 HP to 380 HP, depending on engine variant and application. Built with a reinforced cylinder block, heavy-duty internal components, and a durable crankshaft design, the Weichai WD615 engine is widely used in HOWO, Sinotruk, Shacman, FAW, Dongfeng, and various industrial vehicle applications. Fleet operators value the platform for its reliability, rebuild-friendly design, and cost-effective maintenance.