Zongshen 175cc Water-cooled Tricycle Engine

The Zongshen 175cc water-cooled tricycle engine(Model:CG175-W/ZS159FMK-L)is a compact,durable single-cylinder 4-stroke power unit purpose-built for light to medium-duty cargo three-wheelers.Developed by Chongqing Zongshen,a top-tier small engine manufacturer,this engine integrates efficient water-cooling technology with a rugged OHC design to deliver stable power,excellent heat dissipation,and reliable performance for urban,rural,and agricultural transport.

Core Specifications

Engine Type:Single-cylinder,4-stroke,water-cooled,overhead camshaft(OHC)

Displacement:173.6cc(175cc nominal)

Bore×Stroke:62mm×58mm

Compression Ratio:9.5:1–10.0:1

Max.Power:9.5kW/8,000rpm(12.9HP)

Max.Torque:13.5N·m/5,500rpm

Ignition System:CDI(Capacitor Discharge Ignition)

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:32kg

Overall Dimensions:341×340×430mm

Fuel Consumption:≤354g/kW·h

Certifications:CCC,ISO 9001

Key Features&Advantages

Efficient Water Cooling

Closed-loop water cooling system effectively controls operating temperature,preventing overheating during prolonged heavy-load operation.It ensures stable power output,extends engine life,and performs reliably in high-temperature tropical and subtropical regions.

Balanced Power&Torque

Tuned for strong low-to-mid range torque(13.5N·m at 5,500rpm),ideal for light to medium cargo loads.The engine provides smooth acceleration and good climbing ability,perfect for city delivery and rural transport.

Heavy-Duty Durability

Built with high-strength alloy cylinder,forged crankshaft,and wear-resistant bearings to withstand continuous commercial use.Strict quality control and precision manufacturing ensure minimal maintenance and long service life.

Dual Starting Reliability

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

Fuel-Efficient&Eco-Friendly

Optimized intake/exhaust and combustion chamber design improve fuel efficiency(≈3.8–4.5L/100km under load)and lower emissions,meeting global environmental standards while reducing operating costs.

Universal Compatibility

Standardized mounting dimensions and interface design ensure seamless installation on most 175cc cargo tricycles.Compatible with Zongshen,Dayang,Loncin,and other major tricycle chassis brands.