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Weichai X6170ZC550-5 Marine Engine: Complete Commercial Vessel Propulsion Solution
Selecting the right heavy-duty marine powerplant dictates the lifetime profitability of your commercial vessel. The Weichai X6170ZC550-5 marine engine stands as a dominant engineering milestone in medium-speed marine propulsion. Developing a robust 550 HP (404kW) at 1500rpm, this inline 6-cylinder powerplant balances raw torque with modern emission compliance. As an experienced China Weichai marine engine supplier, HekoPower provides this authentic 6170 series marine diesel system fully equipped for demanding operations.
The core infrastructure relies on a heavy-duty cast-iron block engineered specifically to endure severe thermal cycling. Whether you require a dependable commercial fishing boat engine Weichai 550HP variant or an inland river cargo vessel engine, this heavy-duty workhorse delivers consistent torque reserves. Marine vessel fleet operators trust the X6170ZC550-5 propulsion engine because it provides predictable mechanical action where electronic systems often fail in high-humidity saltwater environments.
Tech Specs of Weichai X6170ZC550-5
General Engine Data
Engine Model: Weichai X6170ZC550-5
Cylinder Count: 6 / 8 Cylinders in Line
Engine Type: 4-stroke, water cooled, in-line, turbocharged and aftercooled
Total Engine Displacement: 27.24 L / 36.32 L
Bore * Stroke: 170×200 (mm)
Dimensions L×W×H) / net weight: L6 2463×1200×1650 (mm) / 3100kg; L8 2650×1040×1818 (mm) / 3800kg
Key Performance Data
Rated Power: 404 kW / 550 HP
Rated Speed: 1500 RPM
Idle Speed: 450-650 RPM
Minimum fuel consumption rate: 197 g/kW.h
Oil consumption rate: ≤0.5 g/kW.h
Torque reserve: 20-34%
More Technical Data
Certification: IMO Tier II
Aspiration: turbocharged and aftercooled
Starting system: Gas/Electrical
Rotation(facing the flywheel) : Counter-clockwise
Fuel system: Mechanical pump
Power rating: P1
Noise: ≤105 dB(A)
Technical Architecture and Specifications Analysis
To fully understand the competitive advantages of the Weichai X6170ZC550-5 marine engine, we must break down its mechanical design and internal parameters.
Displacement and Power Density Benefits
This Weichai 404kW marine engine features an expansive displacement platform built for long-duration operation. The physical stroke configuration offers massive mechanical leverage, translating directly into immediate torque. This high torque density allows your vessel to maintain hull speed even when pushing heavy nets or battling aggressive headcurrents.
The structural foundation utilizes a rigid frame structure with a high-strength forged steel crankshaft. Main bearings receive high-velocity, pressurized oil through internal galleries to maintain a constant hydrodynamic film. This structural foresight ensures the assembly tolerates sudden shock loads smoothly during extreme maritime gear reversals.
Fuel Induction and Eco-Friendly Compliance
Environmental regulatory oversight requires intelligent design. This model functions as an IMO II certified marine diesel engine, meeting strict global marine emission protocols. The high-pressure fuel injection system optimizes the air-to-fuel ratio across the complete RPM spectrum. This highly efficient combustion reduces soot accumulation in the turbocharger assembly while minimizing smoke output during cold starts.
The pulse turbocharging system utilizes exhaust pressure waves to force fresh air into the cylinders. This configuration drastically lowers the Weichai X6170ZC550-5 fuel consumption curves during low-load operations. It also cuts total operating costs significantly over thousands of operating hours.
Real-World Marine Application Scenarios
A high-performance marine engine must adapt to distinct hull profiles, operating cycles, and cargo weights. The X6170ZC550-5 series serves multiple specific vessel roles.
Commercial Fishing Vessels
The Weichai X6170ZC550-5 fishing boat engine application proves highly effective during extended trolling and trawling patterns. Deep-sea fishing boats demand maximum torque at low speeds to tow heavily weighted fishing nets without overloading the thermal cooling circuit. This 550HP fishing vessel diesel engine provides stable thermal baselines over long periods of low-RPM operation. It gives the crew total peace of mind when they are hundreds of nautical miles away from port.
Inland River Cargo and Support Vessels
Navigating shallow waterways with heavily loaded barges requires fine handling and instant propulsion response. The Weichai X6170ZC550-5 inland river vessel engine configuration excels due to its rapid transient response. When water depth shifts quickly or strong currents threaten cross-river transit, the 404kW marine propulsion engine accelerates reliably to maintain rudder control.
Tugboats and Workboats
Tug operations depend entirely on continuous bollard pull ratings. The Weichai X6170ZC550-5 tugboat engine application provides the essential low-end torque required to maneuver massive cargo ships safely in harbors. The engine works alongside matching heavy-duty marine gearboxes to transmit consistent rotational power without wearing down the internal wet clutch plates.
Passenger Ferries and Commuter Vessels
Reliability and crew comfort matter most for regular commuter routes. The Weichai X6170ZC550-5 passenger ferry engine setup uses specialized rubber dampening mounts to isolate structural vibrations. This keeps the vessel cabin quiet for passengers while minimizing fatigue on the hull structure. It also meets strict regional maritime safety standards for public transport.
Maintenance Protocols and Overhaul Strategies
Protecting your propulsion investment requires a structured approach to regular maintenance. HekoPower provides comprehensive support along with authentic technical materials.
Fluid Management and Filter Cycles
Maintaining clean oil is critical to long-term engine survival. Marine lubricating oil must handle high thermal stress while keeping soot particles safely suspended. Fleet owners should replace all primary fuel and oil filters every 250 operating hours. This practice helps prevent debris from fouling the high-pressure injection pumps.
Using genuine fuel-water separators blocks trace moisture from reaching the injector nozzles. This is a critical step because water contamination causes rapid internal corrosion and premature injector failure.
Top-End Inspections and Component Checks
We recommend scheduling top-end inspections every 1500 operating hours. Techs should check valve clearances and inspect the turbocharger compressor wheel for signs of salt buildup. At the same time, check the zinc anodes inside the raw water heat exchanger. Replace them promptly if they are more than half worn down to protect the cooling core from galvanic corrosion.
Maximizing Your Overhaul Intervals
The factory Weichai X6170ZC550-5 overhaul interval typically arrives between 10,000 and 12,000 operating hours under normal conditions. To reach this benchmark, avoid running the engine at maximum output for long, uninterrupted stretches. Instead, stick to a steady continuous duty cycle. Using high-quality diesel fuel and authentic Weichai spare parts during mid-life servicing will keep your cylinder liners and piston rings running cleanly for years.
Procurement and Logistics Integration
Purchasing a commercial engine requires a reliable supply chain partner who understands international shipping rules and custom setups.
Gearbox Matching and Customization
As an established OEM Weichai marine engine distributor, HekoPower goes far beyond simply boxing up engines. We analyze your ship's hull lines to configure the perfect Weichai X6170ZC550-5 gearbox matching setup. Whether your boat needs a Advance, Fada, or twin-disc system with specific reduction ratios, we ensure the mechanical parts align perfectly to maximize propeller thrust.
Global Delivery, Packaging, and Documentation
HekoPower acts as an experienced Weichai marine engine exporter, shipping heavy machinery across global ports safely. Every engine travels inside a heavy wooden crate lined with moisture barriers to prevent rust during sea transit. We handle all export paperwork, including the official Weichai X6170ZC550-5 datasheet, technical drawings, and marine certificates.
Weichai 170 series marine diesel engine, original products from Weichai. This series mainly includes X6170ZC350-1, X6170ZC408-1, X6170ZC450-1, X6170ZC540-1, X6170ZC450-2, X6170ZC480-2, X6170ZC540-2, X6170ZC620-2, X6170ZC650-2, X6170ZC580-3, X6170ZC608-3, X6170ZC680-3, X6170ZC735-3, X6170ZC620-4, X6170ZC620-5, X6170ZC550-5, X6170ZC756-5, X6170ZC818-5, 8170ZC600-1, 8170ZC720-2, 8170ZC818-3, 8170ZC900-3, 8170ZC900-5, 8170ZC1000-5.
Frequently Asked Questions
What are the main differences between the X6170ZC550-5 and older 6170 engines?
The modern -5 variant features a redesigned cylinder head layout that improves airflow, along with an upgraded pulse turbocharger. It also meets strict IMO Tier II rules, making it cleaner and more fuel-efficient than standard legacy models.
How can I get a detailed Weichai X6170ZC550-5 specification sheet PDF?
Please contact our sales desk at HekoPower. We provide official technical documents, including full dimensional blueprints and engine performance curves, to help your engineering team plan the installation.
What is the average Weichai X6170ZC550-5 lead time for international delivery?
Standard build configurations usually ship out within 30 to 45 days. Custom setups that require specific gearbox adaptations or special classification society certificates may take a bit longer depending on factory schedules.
Does this engine ship with a Weichai marine engine with CCS certificate?
Yes, HekoPower can supply this engine with official China Classification Society certification. We can also arrange documents for other major global maritime bodies based on your local port requirements.
Where can I source authentic parts from the Weichai 6170 series engine parts catalog?
HekoPower maintains a fully stocked warehouse filled with genuine factory components. We ship everything from replacement oil filters and gaskets to complete cylinder liner kits and fuel injectors worldwide to minimize your downtime.
What are the dry Weichai X6170ZC550-5 dimensions and weight?
This engine typically weighs around 3,800 kg to 4,000 kg depending on your final accessories. The layout spans roughly 2.5 meters in length, making it a very compact power option for medium-sized engine rooms.
