Details
Weichai WP6C150-15E220 Marine Diesel Engine – 150HP (110kW) Marine Propulsion Solution
The Weichai WP6C150-15E220 Marine Diesel Engine is a 150HP (110kW) propulsion engine designed for fishing vessels, passenger ferries, river transport boats, patrol craft and other commercial marine applications. As part of the Weichai WP6C series engine family, it combines a compact installation footprint with reliable low-speed torque and fuel-efficient operation at 1500rpm.
For operators who need a Weichai 150 HP marine propulsion engine that is easier to install and service than many larger-displacement alternatives, the WP6C150-15E220 is a practical choice. It is built around a six-cylinder inline marine diesel platform of approximately 6.75L displacement, with turbocharging and aftercooling for strong response under load. The engine is commonly selected for fishing boats, workboats and auxiliary propulsion duties where dependable operation and parts availability are critical.
HekoPower supplies genuine Weichai marine engines and supports customers with quotation, configuration confirmation, export packing and spare-parts sourcing. The information below is intended to help buyers compare, maintain and select the right engine rather than simply repeat a factory specification sheet.
Tech Specs of Weichai WP6C150-15E220
General Engine Data
Engine Model: Weichai WP6C150-15E220
Cylinder Count: 6 Cylinders in Line
Engine Type: 4-stroke, water cooled, in-line, turbocharged and aftercooled
Total Engine Displacement: 6.75 L
Bore * Stroke: 105×130 (mm)
Net weight: 750 kg
Overall Dimension: 1360×890×1054 (mm)
Key Performance Data
Rated Power: 110 kW / 150 HP
Rated Speed: 1500 RPM
Idle Speed: 650±30 RPM
Minimum fuel consumption rate: 212 g/kW·h
Oil consumption rate: ≤0.2 g/kW·h
More Technical Data
Certification: IMO Tier II / China Stage II Inland Marine
Aspiration: turbocharged and aftercooled
Starting system: Electrical
Rotation(facing the flywheel) : Counter-clockwise
Fuel system: HPCR
Power rating: P1
Noise: ≤98dB(A)
Architectural Breakdown of the Weichai WP6C Series Engine
Core Mechanical Engineering and Block Design
The foundation of the Weichai WP6C series engine relies on a high-strength, gantry-type cast iron cylinder block. This structural choice minimizes internal component deflection under peak combustion pressures. The 6-cylinder inline configuration provides inherent mechanical balance, reducing the secondary vibrations that fatigue hull structures. With a bore and stroke profile measuring 105mm by 130mm, this 6.75L displacement engine generates high low-end torque. This torque profile is crucial for initiating vessel movement from a dead stop or hauling heavy nets.
HekoPower provides the complete WP6C150-15 marine engine datasheet to naval architects and shipyards. This detailed technical documentation ensures precise integration with existing engine room footprints. The physical footprint remains remarkably compact for a medium-displacement engine. The official Weichai WP6 engine dimensions allow for seamless installation in tight engine compartments, while the Weichai WP6 marine engine weight of approximately 750 kg preserves favorable vessel trim and displacement balance.
High-Efficiency Air and Fuel Delivery
Fuel delivery in the WP6C150-15 inboard diesel engine relies on a mechanical P-type in-line injection pump. Unlike delicate common-rail systems that struggle with varying marine fuel quality, this mechanical setup handles diverse fuel grades reliably. This resilience makes it highly effective for long-distance vessels operating in remote regions where fuel purity cannot be guaranteed.
The turbocharging system pairs with a highly efficient water-cooled intercooler. This configuration lowers intake air temperatures to maximize oxygen density during the intake stroke. The resulting clean combustion curve allows the engine to satisfy stringent environmental standards, making it a fully IMO Tier II compliant Weichai boat engine. For fleet owners facing strict port entry inspections, this certification simplifies compliance verification.
Technical Comparisons: Evaluating the 150HP Propulsion Landscape
Weichai WP6C150-15 vs Cummins 6BT Marine Engine
When assessing options in the 150HP marine propulsion diesel engine category, vessel operators frequently compare the Weichai WP6C150-15 vs Cummins 6BT marine engine. The Cummins 6BT is a respected legacy platform, but it typically hits its 150HP rating at higher operational speeds, often between 2200rpm and 2500rpm. In contrast, the Weichai WP6C150-15 achieves its full 110kW output at a conservative 1500rpm.
This lower operating speed translates directly into reduced piston travel per hour, leading to less structural friction and slower component wear. For workboats requiring sustained bollard pull or continuous cruising, the low-speed torque profile of the Weichai engine provides superior propeller authority without overworking the internal rotating assembly.
Weichai Marine Engine vs Yuchai Marine Engine
In the broader market context of Chinese machinery manufacturing, looking at a Weichai marine engine vs Yuchai marine engine highlights distinct differences in engineering philosophy. Yuchai engines frequently focus on lightweight designs optimized for high-speed coastal applications or light commercial duties. Weichai emphasizes traditional heavy-duty displacement and thicker structural castings for its WP6C series.
This makes the Weichai 150HP propulsion engine better suited for deep-sea operations and continuous high-load applications. The extra material thickness in the block adds structural rigidity and provides superior corrosion allowances within the internal cooling galleries. This built-in durability is a critical advantage for operations in warm, high-salinity seawater.
Real Application Scenarios Across Commercial Fleets
Deploying the Fishing Boat Diesel Engine 150HP
The primary application for this specific configuration is as a dedicated fishing boat diesel engine 150HP unit. Deep-sea trawlers and longliners require an engine that can idle for hours to power auxiliary hydraulic pumps, then immediately transition to high-load towing without experiencing thermal shock. The WP6C150-15E220 supplier network values this model because its mechanical governor responds smoothly to sudden load changes caused by heavy seas or shifting nets.
The engine maintains a stable operational temperature even during prolonged low-RPM idling. This stability prevents the cylinder glazing and carbon buildup that frequently cause issues for higher-speed diesel engines in similar conditions.
Workboat, River Transport, and Ferry Operations
Beyond harvesting marine resources, this engine serves as an excellent workboat propulsion diesel engine for harbor service craft, river transport boat diesel engine setups, and passenger ferry marine engine configurations. In river transport, vessels must push heavily laden barges upstream against strong currents for days at a time. The 1500rpm continuous duty profile ensures the engine can run at 90% load indefinitely without exceeding its thermal limits.
For passenger ferries, the reduced noise and vibration design creates a more comfortable cabin environment for passengers. This helps ferry operators meet local regulatory comfort standards without requiring expensive acoustic insulation packages.
Operational Efficiency and Fuel Optimization
Analyzing the Weichai WP6C150-15 Fuel Consumption Chart
Fuel expenses represent the single largest ongoing cost for any commercial vessel operator. Reviewing the official Weichai WP6C150-15 fuel consumption chart shows a highly optimized efficiency curve across the standard operational spectrum. The engine achieves its lowest specific fuel consumption within the 1200rpm to 1400rpm range, which aligns perfectly with typical cruising speeds for commercial hulls.
Because the mechanical injection system uses precise timing calibrated for the 1500rpm rated speed, fuel droplet atomization remains complete. This thorough combustion minimizes unburnt hydrocarbons and prevents carbon deposits from forming on turbocharger nozzle rings.
Economic Advantages of the 1500rpm Configuration
Opting for a 1500rpm marine propulsion engine 110kw unit yields long-term financial benefits beyond daily fuel savings. Lower engine speeds extend the operational lifespan of external components, including water pumps, alternators, and PTO shafts.
By avoiding the extreme mechanical strain common in 2500rpm engines, operators enjoy longer service intervals and a lower total cost of ownership. Over the lifespan of a commercial vessel, these savings often exceed the initial purchase price of the engine. This makes the WP6C150-15 an incredibly smart financial choice for fleet operators.
Maintenance, Troubleshooting, and Component Replacement
Routine Service Protocols for Marine Technicians
To maintain your engine's CCS certified marine diesel engine status and ensure long-term reliability, you must follow a disciplined maintenance schedule. Technicians should change the lubricating oil and replace the spin-on oil filters every 250 operational hours.
Because marine environments expose components to high moisture levels, checking the zinc anodes inside the raw water heat exchanger every month is vital. Replacing these anodes when they are 50% consumed prevents galvanic corrosion from damaging the internal copper-nickel cooling tubes.
Troubleshooting Common Mechanical Issues at Sea
If you notice black smoke coming from the exhaust under load, the first step is to check the air intake system for restrictions or look for a leaking intercooler connection. If the intake path is clear, the issue may stem from worn injection nozzles that are delivering an improper spray pattern.
If you experience sudden engine speed drops, check the dual-stage fuel filtration system. The WP6C series features a convenient duplex fuel filter design. This setup allows technicians to switch fuel flow to a clean filter element while the engine is running, resolving fuel starvation issues without causing operational downtime.
Guidance for Replacing Legacy Propulsion Units
When upgrading a vessel with a new Weichai 150HP marine diesel engine, careful planning around physical alignment is essential. Ensure the engine mounts align precisely with the existing longitudinal steel stringers of the hull.
Technicians must verify that the angle of the intermediate shaft match the gearbox output flange within a tolerance of less than 0.05mm. Misalignment beyond this limit causes severe vibration, accelerates stern gland wear, and can damage the output bearings of your marine transmission.
Supply Chains and Procurement with HekoPower
Sourcing a Genuine Weichai WP6 Marine Engine
The global maritime marketplace contains various refurbished and non-authorized imitation engines. Securing a genuine Weichai WP6 marine engine requires working with an authorized distributor. HekoPower verifies the serial numbers of every engine block directly with the factory database before exportation.
This verification ensures that our customers receive authentic components, complete with valid factory warranties and certified performance test logs. Using genuine parts protects your equipment investment and ensures that replacement components ordered in the future will fit perfectly without requiring custom modifications.
Navigating the Global Export and Logistics Landscape
As a prominent China Weichai 150HP marine engine exporter, HekoPower manages the entire international logistics and documentation process. We handle everything from generating the detailed WP6C150-15E220 marine engine datasheet documentation for customs clearance to arranging robust seaworthy export packaging.
Whether your fleet operates out of Southeast Asian fishing ports, European inland waterways, or African coastal fisheries, our logistics team coordinates secure ocean freight delivery. This comprehensive support ensures your new propulsion machinery arrives safely, intact, and ready for immediate installation.
Weichai WP6 series marine diesel engine, original products from Weichai. This series mainly includes WP6C122-15, WP6C140-23, WP6C142-18, WP6C150-15, WP6C156-21, WP6C163-23, WP6C165-18, WP6C185-21, WP6C198-23, WP6C220-23, WP6C250-23, WP6C122-15E220, WP6C140-23E220, WP6C142-18E220, WP6C150-15E220, WP6C156-21E220, WP6C163-23E220, WP6C165-18E220, WP6C185-21E220, WP6C198-23E220, WP6C220-23E220, WP6C250-23E220.
Frequently Asked Questions
What is the exact difference between the WP6C150-15 and the WP6C150-15E220 models?
The baseline WP6C150-15 designation refers to the primary mechanical and power configuration within Weichai's product lineup. The E220 suffix indicates a specific emissions configuration package. This package optimizes injection timing and turbocharger performance to meet IMO Tier II environmental standards without sacrificing low-end torque.
What does “1500rpm marine propulsion engine 110kw” mean?
It means the engine is rated at 110kW (150HP) at 1500rpm. Commercial marine engines in this class are often tuned for continuous-duty propulsion rather than high-RPM recreational use.
Does the engine comply with IMO Tier II requirements?
Applicable marine configurations are supplied as an IMO Tier II compliant Weichai boat engine. Always confirm the exact certification package and documentation for your vessel and jurisdiction before purchase.
Can it replace an older 120–180HP marine diesel?
Often yes, but a proper repower assessment is required. Gearbox ratio, propeller sizing, shaft speed, mounting arrangement, cooling system capacity and exhaust backpressure must all be checked before installation.
Can this engine be coupled to a standard Advance or Twin Disc marine gearbox?
Yes, the engine features standard SAE 1 flywheel housing and SAE 14 flywheel dimensions. This standard configuration allows it to interface seamlessly with popular marine gearboxes, including the Advance 135A, Advance 120C, or comparable Twin Disc and ZF models. HekoPower can supply the engine and gearbox as a pre-aligned, integrated propulsion package.
Where can I find verified Weichai WP6C150-15E220 price details for an export order?
Because international freight costs, classification society certification fees (such as CCS or BV), and optional PTO configurations vary based on your project requirements, we provide customized quotes. You can contact the HekoPower sales team directly to get a complete wholesale price quote tailored to your destination port.
Is this engine compatible with alternative fuels or low-sulfur marine gas oil?
The mechanical injection pump on this model is designed to operate reliably with standard marine gas oil (MGO) and low-sulfur automotive diesel fuels. If you plan to operate in areas using ultra-low sulfur diesel (ULSD), we recommend adding a lubricity additive to your fuel storage tanks. This helps protect the internal injection pump plungers from accelerated wear.
