| Customization: | Available |
|---|---|
| After-sales Service: | Overseas Third-Party Support Available |
| Warranty: | 1 Year or 1500 Running Hours Which Come First |
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The V31 marine engine employs a domestically developed electronically controlled high-pressure common rail (HPCR) system, compliant with China Marine Phase II emission standards. Designed specifically for marine propulsion characteristics, it serves as an ideal power source for small craft. The HPCR system ensures excellent fuel atomization, complete combustion, rapid transient speed response with minimal fluctuation, and enhanced safety/reliability.
-Cast iron housing provides superior corrosion resistance
-Wet-type post-turbocharger cooling pipe effectively reduces exhaust gas temperature (EGT)
-Advanced turbocharger technology ensures sufficient air supply
-Combined "Intake Manifold + Intercooler" module design increases charge air density
-Synergistic combustion optimization minimizes emissions (NOx/PM reduction ≥40%)
3. Marine-Adaptive Enhancements
Saltwater-resistant coatings on critical components (ISO 12944 C5-M certification)
Vibration-damped mounting interface for hull integration
500-hour validated durability under cyclic load conditions
Market Positioning: Optimized for 6-8 meter vessels including recreational fishing boats, official service craft, patrol vessels, and similar maritime applications requiring compact, high-efficiency propulsion solutions.
| Model | YCD4A33C6-180 | YCD4A33C6-200 | YCD4A33C6-220 |
| Displacement (L) | 3.1 | ||
| No. of cylinders - Bore x Stroke(mm) | 4-96×107 | ||
| No. of valves per cylinder | 4 | ||
| Intake way | Turbo-charged & inter-cooled | ||
| Continuous power/speed (kW(Ps)/r/min) | 120(165hp)/3000 | 135(185hp)/3400 | 150(200hp)/3400 |
| One-hour power/speed (kW(Ps)/r/min) | 132(180hp)/3100 | 150(200hp)/3500 | 165(220hp)/3500 |
| Min. specific fuel consumption (g/(kWh)) | ≤200 | ||
| Cetificate | ZC,CCS,EIAPP,IMO TIER II | ||
| Overall dimensions(LxWxH) (mm) | 971×696×818 | ||
| Net Weight (kg) | ≤420 | ||
| Product Series | V15 | V25 | V31 | V42 | V46 | V75 |
| Engine Model | YCDV1536C-100 | YCD4V33C6-135 | YCD4A33C6-220 | YCD4D33C6-250 | YCD4C33C6-300 | YCD6033C6-400 |
| Intake Way | Turbocharged & Intercooled |
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| Displacement (L) | 1.4 | 2.5 | 3.1 | 4.2 | 4.6 | 7.5 |
| Combustion Chamber Type |
Direct Injection | |||||
| Max Power/Speed (kW/r/min) |
73/4300 | 100/3500 | 165/3500 | 185/3100 | 220/3000 | 295/2500 |
| Rated Fuel Consumption Rate(g/kWh) | ≤235 | ≤210 | ≤200 | ≤200 | ≤200 | ≤200 |
| Oil Consumption Rate (g/kWh) | ≤0.35 | ≤0.9 | ≤0.9 | ≤0.9 | ≤0.9 | ≤0.9 |
| Steady-State Speed Regulation (%) | ≤10 | |||||
| Transient Speed Regulation(%) | ≤12 | |||||
| Speed Fluctuation Rate (%) | ≤1 | |||||
| Minimum Idle Speed (r/min) | 800±25 | 625±25 | 625±25 | 625±25 | 625±25 | 625±25 |
| Coolant Temperature (°C) | 75-95 | |||||
| Oil Temperature(°C) | 85-125 | |||||
| Oil Pressure (MPa) | Idle: ≥0.1 Other Speeds:0.25-0.6 |
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| Weight (kg) | ≤150 | ≤280 | ≤400 | ≤490 | ≤550 | ≤760 |
| Dimensions (L×W×H, mm) | 571×680×665 | 730×630×660 | 800×650×765 | 830×660×850 | 850×700×850 | 1160×880×1155 |
Founded in 1992, Guangxi Yuchai Machinery Co., Ltd. (Yuchai for short) is the first Chinese-foreign joint venture in the domestic industry listed abroad. Headquartered in Yulin, Guangxi Zhuang Autonomous Region, we have 11 subsidiaries and distribute our production bases in such areas as Guangxi, Jiangsu, Anhui and Shandong. As an internal combustion engine manufacturing base with a complete range of products in China and broad areas of application, we have an annual sales revenue exceeding CNY 20 billion and an annual engine output of 600,000 sets.
Driven by the mission of "realizing customer value and driving better lives", we share market, technology and product achievements and development opportunities with all partners, and coordinate with OEMs, dealers, service stations and suppliers to achieve win-win.
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