Overview

Weichai's new generation engine products; The power coverage ranges from 257-297 kW, meeting the emissions requirements of National V/VI and suitable for 13.7-18-meter buses.

rated power

Company:American metric system

maximum power	400 hp294 kW
minimum power	350 hp257 kW
Maximum torque speed	1900/（1200-1300） N.m / r/min

emission standard

National 5/National 6

routine

Product Series	WP10H
fuel	diesel
engine type	Inline 6-cylinder, four stroke engine
Cylinders	6
Number of valves	4
bore	116 mm
itinerary	150 mm
displacement	9.5 L
Air intake method	turbocharged intercooled
compression ratio	17.5:1
combustion system	Electric controlled high-pressure common rail

Engine size (approximate final size depends on optional components)

length	1196 mm
width	1026 mm
height	1133 mm
G weight	815 kg

Note: Product parameters and images are for reference only; If there are any changes, no further notice will be given.

high reliability

The engine has a high degree of reinforcement, a large design margin, a maximum power of up to 700hp, and a maximum torque of 2300N. m
Accumulated over 45000 hours of bench testing and over 50 million kilometers of vehicle road testing
Lifespan exceeding 1.8 million kilometers/30000 hours

modular design

Components reduced by more than 30% compared to similar products - integrated fuel filter module, integrated design of coarse and fine filters
Integrated design of machine filter module, oil filtration, cooling, rotor filtration, and water filtration
Integral cylinder head, integrated intake pipe, compact design

lightweight design

The total weight of the machine is only 815kg (National V) - with powerful CAE analysis capabilities, optimized design is carried out while ensuring strength and reliability
Plastic and aluminum alloy materials are extensively used in positions such as flywheel housing, water pump, oil pan, rocker arm cover, and intake pipe

Excellent NVH performance

The rated power point has a noise level of less than 96dB (A) per meter, which is 2-3dB (A) lower than competitors. The body adopts a drum shaped skirt design, which has high strength, low vibration, and significantly reduces noise
Rear gear chamber, using high-precision gears on the shear gear for stable operation and further reducing mechanical noise
Multiple injection technology significantly reduces combustion noise

Ultra low fuel consumption

The minimum fuel consumption rate is 185g/kW • h, and the fuel consumption under common operating conditions is 3% -5% lower than that of competitors
The low-speed fuel consumption zone covers the common operating conditions of buses at 950-1450r/min, which is more fuel-efficient

Powerful

On the premise of ensuring power, a smaller rear axle speed ratio can be chosen to further reduce fuel consumption

Adaptable

At an altitude of 2800 meters, there is no power reduction, and at 4500 meters, there is ultra-low power loss under common operating conditions
Zero startup failure at -20 ℃ in low-temperature environment

Good adaptability

Small in size and light in weight, it is the ideal power source for 13.7-18-meter buses
The engine can be equipped with three generators in parallel to meet the electricity needs of various types of buses; The main air conditioning system is equipped with a structure that does not directly contact the vehicle frame, further enhancing the vehicle's NVH performance and improving overall quality

model	Rated power/speed （kW/rpm）	Maximum torque/speed （N.m/rpm）	displacement （L）	emission standard	technical route	Compatible Models
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