Details
Weichai WP10C350-18 Marine Engine
The Weichai WP10C350-18 marine engine is a proven 350HP marine propulsion solution designed for commercial vessels that require dependable power, low fuel consumption, and long service life. As a member of the renowned Weichai WP10 series marine engine family, this electronically controlled common rail diesel engine delivers 257kW at 1800rpm and is widely used in fishing vessels, coastal transport boats, workboats, passenger ferries, and other commercial marine applications.
Built around Weichai's mature 9.726L platform, the WP10C350-18 combines high torque output with excellent fuel efficiency. The engine utilizes a high-pressure common rail fuel system, advanced turbocharging technology, and optimized combustion control to achieve stable performance under continuous marine operating conditions. Its compliance with IMO II emission requirements makes it suitable for international marine applications where reliability and environmental performance are equally important.
As a professional marine engine supplier, HekoPower provides genuine Weichai WP10C350-18 marine engines, replacement parts, technical support, and global export services to customers worldwide.
Tech Specs of Weichai WP10C350-18
General Engine Data
Engine Model: Weichai WP10C350-18
Cylinder Count: 6 Cylinders in Line
Engine Type: 4-stroke, water cooled, in-line, turbocharged and aftercooled
Total Engine Displacement: 9.726 L
Bore * Stroke: 126×130 (mm)
Net weight: 1070 kg
Overall Dimension: 1482×981×1016 (mm)
Key Performance Data
Rated Power: 257 kW / 350 HP
Rated Speed: 1800 RPM
Idle Speed: 600±50 RPM
Minimum fuel consumption rate: 191 g/kW.h
Oil consumption rate: ≤0.5 g/kW.h
More Technical Data
Certification: IMO Tier II
Aspiration: turbocharged and aftercooled
Starting system: Electrical
Rotation(facing the flywheel) : Counter-clockwise
Fuel system: HPCR
Power rating: P1
Noise: ≤97 dB(A)
Operational Performance Analysis and Technical Comparisons
When comparing the Weichai 350HP marine propulsion engine to competing options in the 9-to-10 liter category, several key differences emerge regarding engineering philosophy, weight distribution, and real-world fuel economy.
Power Density and Weight Considerations
Many legacy marine motors with similar power footprints rely on larger, heavier 11- or 12-liter engine blocks to output 350 horsepower. The WP10C350-18 Marine Engine achieves its 257kW output with a remarkably compact footprint, weighing approximately 1,070 kilograms. This high power-to-weight ratio allows boat builders to optimize the vessel's center of gravity, saving vital physical space in the engine compartment for auxiliary machinery, fuel storage, or cargo capacity without compromising structural durability.
Fuel Efficiency Benchmarks
A critical point of evaluation for any commercial vessel operator is the Weichai marine engine fuel consumption metrics. In standardized testing environments, the minimum fuel consumption rate sits at a highly competitive 191 grams per kilowatt-hour. Because the electronic common rail system prevents over-fueling during transient load changes, the actual operational fuel savings become highly visible over thousands of hours of continuous service, allowing commercial operators to lower their total cost of ownership substantially compared to legacy mechanical injection engines.
Environmental Compliance Frameworks
As global maritime environmental regulations tighten, choosing an IMO II marine diesel engine is essential for future-proofing your business. The WP10C350-18 features an optimized combustion bowl profile and precise injection timing that reduces harmful nitrogen oxide emissions, making it a fully certified Weichai IMO II compliant marine engine. This certification ensures smooth registration and compliance verification for commercial vessels operating in international shipping channels and tightly regulated coastal waters.
Real Application Scenarios Across Commercial Fleets
The physical properties and performance characteristics of this 1800rpm powertrain make it exceptionally well-suited for specific vessel profiles requiring a heavy-duty marine propulsion engine designed for continuous, uninterrupted operation.
Commercial Fishing Vessels and Trawlers
For operators managing a Weichai engine for fishing boats, reliability during long-distance trips is non-negotiable. A Weichai marine engine for trawlers must handle the immense hydrodynamic drag of pulling heavy nets through deep water for hours at a time. The WP10C350-18 delivers steady, predictable low-speed torque that prevents the boat from losing momentum against strong ocean currents, ensuring the vessel maintains a stable trawling velocity.
Cargo Carriers and Coastal Transport
When used as a marine main engine for small cargo vessels or a dedicated Weichai engine for coastal transport boats, this unit excels at moving heavy tonnage over set distances. The low-vibration profile of the inline 6-cylinder layout minimizes structural stress on steel and aluminum hulls, protecting sensitive onboard electronic navigation systems and providing a safer, more comfortable workspace for the ship's crew during extended journeys.
Workboats and Tug Operations
Harbor service requires rapid power changes and hours of idling mixed with periods of maximum load execution. Serving as a rugged Weichai propulsion engine for workboats or a responsive Weichai marine engine for tug boats, the electronically controlled common rail system ensures the engine handles sudden changes in towing resistance without sputtering or experiencing thermal shock, making it a highly reliable marine diesel engine for offshore operation.
Professional Maintenance, Lifecycle Extension, and Parts Sourcing
Securing a long operating lifecycle for your marine equipment requires strict adherence to manufacturer service schedules, clean fuel management, and the exclusive use of genuine components.
Managing the Engine Overhaul Interval
The official Weichai WP10 257kW engine overhaul interval is rated up to 20,000 hours under standard continuous operating conditions. To reach this milestone without major mid-lifecycle component failures, operators must perform regular fluid analysis. Regularly sampling the engine oil allows mechanics to spot early signs of bearing wear or fuel dilution long before visual symptoms appear, protecting your core investment.
Fuel System Upgrades and Protection
Because the high-pressure common rail system operates under tight mechanical tolerances, clean fuel is essential. Marine operators should always install a high-efficiency primary fuel-water separator between the main storage tank and the engine's onboard fuel filters. Removing emulsified water and microscopic abrasive sediment from your fuel prevents premature wear on the expensive injector nozzles and high-pressure fuel pump elements.
Sourcing Genuine Replacement Parts
As a dedicated Weichai marine engine distributor, HekoPower maintains an extensive inventory of replacement parts for Weichai WP10 series marine propulsion units. Using non-genuine or aftermarket internal components can disrupt the precise balance of the engine, leading to premature failure or voiding your operational warranties. We supply genuine cylinder liners, piston rings, specialized gaskets, and replacement electronic control modules to keep your vessel in peak operating condition.
Seamless Global Procurement with HekoPower
Navigating the logistics of buying commercial machinery requires an experienced partner. When you choose to buy a Weichai WP10C350-18 marine engine from HekoPower, you gain access to a streamlined B2B supply chain optimized for international trade.
Wholesale Distribution and Transparent Pricing
We operate as a trusted Weichai marine diesel engine wholesale partner, providing highly competitive pricing structures for shipyards, fleet operators, and maritime engineering firms. Instead of navigating confusing multi-tiered distribution networks, dealing directly with an authorized Weichai marine engine exporter like HekoPower ensures you receive clear, accurate technical guidance alongside transparent Weichai WP10C350-18 price details tailored to your specific order volume.
Supply Chain Logistics and Lead Times
We understand that every day a vessel sits in dry dock waiting for machinery represents direct financial loss. Our logistics team focuses heavily on minimizing the Weichai WP10C350-18 lead time by maintaining ready-to-ship inventory configurations and working with reliable global maritime freight forwarders. Whether you need a single replacement main engine delivered to a port in Southeast Asia or multiple power units shipped to a shipyard in Europe, we coordinate the export documentation carefully to prevent customs delays.
Weichai WP10 series marine diesel engine, original products from Weichai. This series mainly includes WP10C313-21, WP10C350-18, WP10C375-21, WP10C395-22.
Frequently Asked Questions (FAQ)
Where can I access the official Weichai WP10C350-18 technical specifications sheet?
You can request the comprehensive Weichai WP10 marine engine datasheet and official performance curves directly from the HekoPower technical support team. Our detailed documentation includes accurate installation footprints, cooling loop diagrams, electrical wiring schematics for the engine control unit, and specific power take-off options to help you integrate the engine smoothly into your vessel's design.
What factors influence the Weichai WP10C350-18 price and availability?
The final cost of a genuine Weichai WP10C350-18 configuration depends on your required classification society certifications (such as CCS, BV, or ABS), the inclusion of specialized instrument panels, and your choice of matching marine gearboxes. Contact our commercial sales department with your specific project parameters to receive a formal, obligation-free quote.
Can this engine operate efficiently on standard marine gas oil?
Yes, this electronically controlled common rail 350hp boat engine runs efficiently on standard marine gas oil (MGO) and commercial automotive-grade diesel fuels that meet international standards. To protect the high-pressure injection components from poor-quality fuel found in remote ports, we highly recommend using our recommended multi-stage filtration setups.
What is the standard factory warranty period provided by a Weichai marine engine distributor?
HekoPower provides complete factory-backed warranty coverage for all new Weichai engines, typically covering twelve months from the date of initial vessel commissioning or a set number of operating hours, whichever comes first. We also assist your engineering teams by supplying authentic spare parts kits to ensure smooth operations during the critical initial service window.
How does HekoPower ensure safe transit for heavy marine machinery?
Every Weichai boat engine we export undergoes a rigorous preparation process. We drain all internal testing fluids, treat the raw-water cooling passages with anti-corrosion inhibitors, wrap the entire unit in heavy-gauge protective plastic, and secure it firmly inside a heavy-duty, export-approved wooden crate designed for safe forklift and crane handling during long ocean voyages.
