Hanwei 350cc Water-cooled Tricycle Motorcycle Engine

The Hanwei 350cc water-cooled tricycle engine(Model:ZS177MP-2/CG350)is a heavy-duty,single-cylinder,4-stroke powerplant purpose-built for medium-to-heavy cargo three-wheelers.Developed by Chongqing Zongshen,a leading manufacturer of small engines,this engine combines efficient closed-loop water cooling with a robust overhead camshaft(OHC)design to deliver stable power,superior heat dissipation,and long-term reliability for commercial,agricultural,and long-haul transport operations.

Core Specifications

-Engine Type:Single-cylinder,4-stroke,water-cooled,OHC

-Displacement:350cc(nominal)

-Bore×Stroke:77mm×73mm

-Compression Ratio:10:1

-Max.Power:13kW/5,500rpm(≈17.4HP)

-Max.Torque:25N·m/4,000rpm

-Ignition System:DC-CDI

-Starting System:Electric start+kick start(dual-mode)

-Lubrication:Pressure&splash combined

-Cooling System:Closed-loop water cooling with aluminum radiator

-Transmission:5-speed forward+1 reverse(manual clutch)

-Net Weight:41.5kg

-Overall Dimensions:371×391×469mm

-Fuel Consumption:≤354g/kW·h

-Certifications:CCC,ISO 9001

Key Features&Performance Advantages

1.High-efficiency Water Cooling

Closed-loop water cooling efficiently dissipates heat,ensuring stable power output and preventing overheating during prolonged heavy-load operation.Ideal for high-temperature tropical,subtropical,and mountainous regions,extending engine service life.

2.Strong Low-End Torque for Heavy Cargo

Tuned for high torque at low-to-mid RPMs(25N·m at 4,000rpm),the engine delivers exceptional pulling power,perfect for fully loaded cargo tricycles.It offers excellent climbing ability and smooth acceleration on steep rural or urban terrain.

3.Heavy-Duty Durability

Constructed with a high-strength alloy cylinder,forged crankshaft,and precision bearings to withstand continuous commercial use.Rigorous factory testing and strict quality control minimize maintenance and ensure long-term reliability under harsh conditions.

4.Dual Starting Reliability

Effortless electric start for daily use;a backup kick start guarantees operation in cold weather or low-battery scenarios,reducing downtime for transport businesses.

5.Fuel-Efficient&Eco-Friendly

Optimized intake/exhaust and combustion systems reduce fuel consumption(≈4.5–5.5L/100km under load)and lower emissions,meeting environmental standards while cutting operating costs.

6.Universal Compatibility

Standardized mounting dimensions and interface design ensure seamless installation on most 350cc cargo tricycles.Compatible with major chassis brands including Zongshen,Dayang,Loncin,and more.

Applications

Widely used in medium-to-heavy cargo tricycles,agricultural three-wheelers,urban delivery vehicles,and small freight transport.Preferred in Asia,Africa,Latin America,and the Middle East for cost-effective,reliable heavy-load mobility solutions.

Quality&Warranty