Details
Weichai WP10C313-21 Marine Engine: The Ultimate 313HP Power Solution for Commercial Vessels
The Weichai WP10C313-21 Marine Engine is a high-performance 230kW marine propulsion solution developed for commercial vessels that require dependable power, fuel efficiency, and long service life. Delivering 313HP through a proven six-cylinder platform, this engine combines advanced electronic common rail technology with the durability of the Weichai WP10 series.
As a trusted engine supplier, HekoPower provides genuine Weichai marine engines for customers operating fishing vessels, passenger ferries, workboats, aquaculture support vessels, and coastal transportation fleets. The WP10C313-21 is particularly suitable for operators seeking a balance between fuel economy, maintenance efficiency, and propulsion performance.
Tech Specs of Weichai WP10C313-21
General Engine Data
Engine Model: Weichai WP10C313-21
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: 230 kW / 313 HP
Rated Speed: 2130 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)
Technical Deep-Dive: Weichai WP10C313-21 Specifications and Performance
The structural foundation of the Weichai WP10 Series Inboard Diesel Engine balances compact dimensions with extreme heavy-duty capabilities. Engineering teams designed this 9.726-liter displacement engine specifically for tight marine engine compartments where space is at a premium but high power density is mandatory.
Advanced Weichai WP10C313-21 Common Rail Fuel System
Unlike legacy mechanical diesel engines that rely on outdated rotary pumps, the newer WP10C313-21E120 and WP10C313-21E200 variants utilize a cutting-edge electronic high-pressure common rail fuel system. This system maintains incredibly high injection pressures regardless of engine RPM.
By separating pressure generation from engine speed, the onboard electronic control unit achieves near-perfect fuel atomization inside the combustion chamber. This optimization guarantees a remarkably low Weichai WP10C313-21 fuel consumption rate, dropping minimum consumption to a highly economical ≤ 191 g/kW·h. For commercial fleet operators, this fuel thriftiness compounds over thousands of hours of continuous operation, resulting in massive savings on overhead expenses.
High Torque Low Speed Marine Diesel Engine 230kw Performance
A standout feature of this Weichai 6 Cylinder Marine Diesel Engine is its exceptional low-speed torque curve. Marine propulsion demands high torque at lower rotational speeds to overcome the initial drag of a static or heavily laden vessel.
The WP10C313-21 boasts a massive torque reserve ranging between 20% and 35%. This engineering choice allows the captain to safely execute sudden throttle increases without risking an engine stall or generating thick black smoke. The turbocharger and aftercooler systems work in perfect harmony to force dense, oxygen-rich air into the cylinders, ensuring clean and immediate power delivery the moment the throttle lever moves forward.
Technical Comparisons: Weichai vs Cummins Marine Engine Options
Selecting the right marine engine requires analyzing options within the same power band to find the best match for your vessel's operational profile.
Weichai WP10C313-21 vs Cummins 6CTA8.3-M
The Cummins 6CTA8.3-M is a traditional favorite in the 300HP range, but the Weichai WP10C313-21 Marine Engine offers distinct modern advantages. The Weichai engine brings a larger overall displacement of 9.726 liters compared to the 8.3 liters found in the Cummins model.
This larger displacement means the Weichai engine does not have to work as hard to produce its 313HP, leading to lower internal thermal stress and an extended operational lifespan. Furthermore, while many older Cummins 6CTA units on the market still rely on mechanical fuel injection, the Weichai common rail platform offers cleaner combustion, sharper throttle response, and full compliance with strict global environmental regulations.
Weichai WP10C313-21 vs WP10C350-18
When reviewing a Weichai marine engine comparison within the same engine family, the choice between the 313HP model and the higher-output WP10C350-18 comes down to duty cycles. The WP10C350-18 delivers 350HP but operates at a higher internal strain, making it better suited for light-duty or intermittent applications.
The 313HP WP10C313-21 is tuned down slightly to handle continuous, uninterrupted heavy-duty operations. This makes it a far better choice for slow-moving, heavy-displacement hulls that require steady, unyielding power for days on end without stopping.
Maintenance Guidelines and Electronic Common Rail Replacement Tips
To secure long-term reliability and protect your investment, you must follow strict maintenance protocols. HekoPower provides comprehensive support, original parts, and documentation like the Weichai WP10C313-21 datasheet PDF to ensure your crew executes these tasks correctly.
Weichai WP10 Series Overhaul Interval Hours and Servicing Cycles
The structural components of this engine are engineered for longevity, with a verified Weichai WP10 series overhaul interval hours rating that exceeds 20,000 running hours. Achieving this benchmark requires disciplined preventive maintenance.
Crew members must change the marine-grade lubrication oil and primary oil filters every 250 to 300 hours of operation. Because marine environments expose the engine to harsh saltwater, checking the sacrificial zinc anodes inside the raw-water heat exchanger every month is critical to preventing galvanic corrosion inside the cooling jackets.
Fuel System Integrity and Electronic Common Rail Weichai Marine Engine Replacement
The high-pressure common rail system demands ultra-clean diesel. Even microscopic water particles or fine sediment can score the precision-machined fuel injectors or damage the high-pressure pump.
Operators must install high-efficiency fuel-water separators between the main fuel tank and the engine's primary fuel filters. If you notice a sudden drop in fuel rail pressure or rough idling, it often points to fuel contamination. When replacing fuel system components, always use genuine Weichai parts rather than cheap aftermarket alternatives. Substandard parts can disrupt injection timing, ruin your fuel economy, and void your factory warranty.
Real-World Applications: Maximizing the Weichai Marine Propulsion System
The true value of the Weichai 313HP Marine Diesel Engine is proven through its versatility across diverse commercial marine sectors.
Commercial Fishing Boat Engine Weichai 313hp Performance
In the demanding aquaculture and commercial fishing industries, an engine must handle erratic load variations. The Weichai WP10C313-21 fishing vessel engine excels at powering heavy hydraulic winches, hauling in dense nets, and maintaining a steady trawling speed against strong ocean currents. The low noise output and minimized vibration levels keep the crew comfortable during exhausting multi-day fishing expeditions.
Passenger Ferries and Coastal Vessel Propulsion
For operators running a Weichai WP10C313-21 passenger ferry engine or a Weichai WP10C313-21 workboat engine, strict adherence to schedules is paramount. The engine's high reliability prevents unexpected downtime, ensuring safe and on-time passenger transits. Its clean-burning design keeps the vessel compliant with international maritime laws while protecting passengers from foul exhaust odors.
Workboats, Patrol Vessels, and Inland Logistics
From a Weichai WP10C313-21 patrol boat engine requiring immediate bursts of speed to a Weichai WP10C313-21 coastal vessel propulsion unit pushing heavy barges, this engine delivers consistent performance. It adapts effortlessly to changing water temperatures and high-humidity environments, making it a globally trusted power plant for critical maritime infrastructure.
Commercial Procurement: Partner with a Genuine Weichai Marine Diesel Supplier
Navigating the commercial purchasing process for heavy machinery requires transparency, speed, and logistical expertise. As a dedicated China Weichai marine engine exporter, HekoPower simplifies global procurement to get your vessel back in the water as quickly as possible.
Getting a Weichai WP10C313-21 Quotation and Understanding Pricing
When looking to buy Weichai WP10C313-21 marine engine units, working with an authorized distributor guarantees you receive an authentic product complete with factory certifications. HekoPower offers transparent pricing structures based on your order volume. Whether you need a single replacement engine or are buying in bulk for a fleet upgrade, our team provides an accurate Weichai WP10C313-21 quotation that includes all necessary marine gearboxes, control panels, and optional instrumentation.
Weichai WP10C313-21 Stock Availability and Worldwide Lead Time
We understand that every day your vessel sits in dry dock costs your business money. HekoPower maintains robust Weichai WP10C313-21 stock availability within our supply hubs to drastically shorten your wait time. Our streamlined logistics network ensures a prompt Weichai WP10C313-21 lead time, managing everything from secure ocean freight packaging to export customs clearance. This end-to-end service allows you to focus entirely on your vessel's operations.
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)
What emission standards does the Weichai WP10C313-21 marine engine meet?
The engine is fully compliant with Weichai IMO II Marine Engine guidelines and China Stage I marine emission requirements. This compliance ensures your vessel can legally navigate international waters and coastal ports without facing regulatory penalties or environmental operational restrictions.
Can HekoPower configure this engine for keel cooling applications?
Yes. As an adaptable OEM Weichai marine engine supplier, HekoPower can configure the cooling loop to match your specific hull design. We provide both standard heat exchanger cooling setups and specialized keel cooling configurations for vessels operating in shallow or debris-heavy waters.
What options are available for the engine's electrical and monitoring systems?
The engine can be paired with standard mechanical gauge panels or advanced digital monitoring displays. These digital systems provide real-time readouts of fuel pressure, oil temperature, engine hours, and diagnostic trouble codes, giving your crew complete oversight of the engine's health.
Is the WP10C313-21 suitable for auxiliary power generation or only main propulsion?
While engineered primarily as a high-performance WP10C313-21 Marine Propulsion Engine, this 6-cylinder block can also be configured as a heavy-duty marine auxiliary engine. It is highly capable of driving large onboard generators, heavy-duty fire pumps, or high-capacity hydraulic power packs.
Why should I choose HekoPower over alternative marine engine suppliers?
HekoPower guarantees a 100% Genuine Weichai Marine Engine sourcing process, eliminating the risk of counterfeit parts or unverified refurbishments. We support our clients with a competitive Weichai marine engine wholesale price, direct access to factory engineers, and rapid international shipping to keep your commercial maritime business moving forward.
