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WP12
weichai

The Weichai WP12 is a robust and efficient 6-cylinder, in-line, 4-stroke diesel engine renowned for its exceptional durability, reliable power, and superior fuel economy . With a substantial 11.596-liter displacement and featuring turbocharged and intercooled aspiration, this water-cooled engine is engineered to deliver consistent performance in the most demanding transportation, construction, and industrial environments . Its proven technology and robust construction make it a trusted power source for a wide range of heavy-duty equipment .
For a quick overview, here are the core specifications of the WP12 engine series:
The Weichai WP12 engine is a versatile powerhouse, built to be the driving force behind a wide array of machinery :
Construction Machinery: Extensively used in heavy equipment such as loaders (7-9t), rollers, excavators, cranes, and bulldozers .
Heavy-Duty Trucks & Logistics: An ideal power source for 6×4 medium and long-distance composite transport tow tractors and other heavy-duty transportation .
Agricultural Equipment: Powers 300-440hp tractors for demanding agricultural operations .
Marine Applications: Used for main propulsion and auxiliary power in vessels such as inland river transport ships, fishing boats, and yachts .
Power Generation: Serves as a reliable prime mover in diesel generator sets .
Advanced High-Pressure Common Rail (HPCR) Fuel System: The engine utilizes an electronically controlled high-pressure common-rail system . This technology ensures precise fuel injection, leading to optimized combustion, reduced fuel consumption (as low as 194g/kW·h), and lower emissions .
Efficient Turbocharging and Intercooling: The turbocharged and intercooled system forces more dense, cool air into the cylinders, significantly boosting power output and torque while optimizing combustion for improved fuel efficiency .
Robust Engine Design for Longevity: Built for maximum durability, the engine features a high-strength body and key components like a forged steel crankshaft . This construction, along with features like nitrided piston rings and advanced air filtration, ensures reliable operation and a long service life in tough conditions such as mining or dusty environments .
Excellent Fuel Economy: The combination of the HPCR system and a four-valve structure facilitates efficient combustion, resulting in significant fuel savings and lower operating costs .
Low Noise and Vibration: The engine incorporates a frame-type body and special design features like a unique oil sump, which significantly reduce operational noise, enhancing comfort .

The Weichai WP12 is a robust and efficient 6-cylinder, in-line, 4-stroke diesel engine renowned for its exceptional durability, reliable power, and superior fuel economy . With a substantial 11.596-liter displacement and featuring turbocharged and intercooled aspiration, this water-cooled engine is engineered to deliver consistent performance in the most demanding transportation, construction, and industrial environments . Its proven technology and robust construction make it a trusted power source for a wide range of heavy-duty equipment .
For a quick overview, here are the core specifications of the WP12 engine series:
The Weichai WP12 engine is a versatile powerhouse, built to be the driving force behind a wide array of machinery :
Construction Machinery: Extensively used in heavy equipment such as loaders (7-9t), rollers, excavators, cranes, and bulldozers .
Heavy-Duty Trucks & Logistics: An ideal power source for 6×4 medium and long-distance composite transport tow tractors and other heavy-duty transportation .
Agricultural Equipment: Powers 300-440hp tractors for demanding agricultural operations .
Marine Applications: Used for main propulsion and auxiliary power in vessels such as inland river transport ships, fishing boats, and yachts .
Power Generation: Serves as a reliable prime mover in diesel generator sets .
Advanced High-Pressure Common Rail (HPCR) Fuel System: The engine utilizes an electronically controlled high-pressure common-rail system . This technology ensures precise fuel injection, leading to optimized combustion, reduced fuel consumption (as low as 194g/kW·h), and lower emissions .
Efficient Turbocharging and Intercooling: The turbocharged and intercooled system forces more dense, cool air into the cylinders, significantly boosting power output and torque while optimizing combustion for improved fuel efficiency .
Robust Engine Design for Longevity: Built for maximum durability, the engine features a high-strength body and key components like a forged steel crankshaft . This construction, along with features like nitrided piston rings and advanced air filtration, ensures reliable operation and a long service life in tough conditions such as mining or dusty environments .
Excellent Fuel Economy: The combination of the HPCR system and a four-valve structure facilitates efficient combustion, resulting in significant fuel savings and lower operating costs .
Low Noise and Vibration: The engine incorporates a frame-type body and special design features like a unique oil sump, which significantly reduce operational noise, enhancing comfort .
