Details
Weichai X6170ZC350-1 Marine Propulsion Engine
The Weichai X6170ZC350-1 Marine Engine is a heavy-duty 6-cylinder marine diesel engine developed for continuous propulsion service in commercial vessels. Rated at 350HP (258kW) at 1000RPM, this engine belongs to the proven Weichai 170 Series Marine Engine platform, which is widely used in fishing fleets, inland cargo transportation vessels, engineering boats, harbor service vessels, and workboats throughout Asia, Africa, South America, and other marine markets.
Designed around a robust mechanical fuel injection system and a turbocharged water-cooled structure, the Weichai X6170ZC350-1 combines durability, fuel economy, and easy maintenance. For vessel operators seeking a dependable marine propulsion solution without the complexity of advanced electronic systems, this engine remains one of the most practical options available.
As a professional marine engine supplier, HekoPower supplies genuine Weichai marine engines, replacement parts, technical support, and international shipping services for customers worldwide.
Tech Specs of Weichai X6170ZC350-1
General Engine Data
Engine Model: Weichai X6170ZC350-1
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: 258 kW / 350 HP
Rated Speed: 1000 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 Core Engineering
Inside the Weichai 170 Series Marine Engine Specification
The foundation of the Weichai X6170ZC350-1 is its specialized 170mm cylinder bore and 200mm piston stroke design. This structural geometry creates a massive total displacement across its inline 6-cylinder layout. It allows the engine to achieve peak torque at lower mechanical cycles.
Unlike high-speed engines that experience rapid internal wear, this 1000rpm marine propulsion engine relies on structural mass and low thermal stress to drive heavy-duty propellers. The single-cylinder, single-head structural blueprint simplifies access during inspections, allowing engineering crews to perform top-end overhauls without removing adjacent components.
Turbocharged Marine Engine Intercooling and Fluid Control
Every heavy-duty marine diesel engine requires precise thermal management to survive continuous operations under full load. The X6170ZC350-1 uses a pulse-conversion turbocharged system paired with a highly effective water-cooled marine diesel engine configuration.
Freshwater circulates through a closed-loop heat exchanger, preventing corrosive seawater from ever contacting the internal engine block walls. The pulse conversion manifold captures exhaust gas kinetic energy efficiently, ensuring rapid turbocharger spool-up even when the vessel is maneuvering at low idle speeds in tight harbors.
The Mechanical Fuel Pump Advantage
In remote maritime channels, electronic component failure can completely strand a vessel. For this reason, the X6170ZC350-1 utilizes a heavy-duty mechanical fuel pump marine engine layout. This injection system relies entirely on mechanical governor synchronization and high-pressure fuel lines.
It eliminates complex electrical control units (ECUs) that are prone to moisture damage. The mechanical fuel injection infrastructure remains highly tolerant of variable marine diesel fuel qualities, a crucial benefit for international transport vessels refueling at different global ports.
Technical Comparisons: X6170ZC350-1 vs. Competitors
Power Output Stability and Displacement Benefits
When analyzing the Weichai 258kW marine engine against Western or Japanese alternatives in the 350 horsepower bracket, displacement distribution reveals a distinct design philosophy. Many competitor engines achieve 350hp by applying high turbo boost pressures to smaller 9-liter or 11-liter engine blocks running at 1800 to 2200rpm.
The Weichai 170 series operates with a much larger displacement profile at a fraction of the rotational speed. This lower piston speed reduces internal friction losses, controls heat generation inside the combustion chamber, and ensures the Weichai 350HP marine diesel engine sustains its rated output without automatic electronic de-rating during tropical summer sea temperatures.
Environmental Compliance and Fuel Consumption Profiling
Operating a commercial vessel requires strict alignment with global maritime laws. The X6170ZC350-1 is a certified IMO II marine engine, fully meeting the International Maritime Organization's NOx emission limits. This compliance is achieved purely through optimized combustion bowl designs and precise mechanical injection timing, avoiding the need for expensive aftertreatment fluids.
According to the official Weichai X6170ZC350-1 fuel consumption rate sheet, the minimum fuel consumption sits at an efficient 197g/kW·h. This flat consumption curve saves vessel operators thousands of dollars in fuel costs during multi-week voyages.
Real Application Scenarios in Modern Commercial Fleets
Marine Engine for Fishing Vessel and Deep-Sea Trawler Operations
For commercial fishermen, engine reliability determines both safety and profitability. The Weichai X6170ZC350-1 for commercial fishing boats provides the consistent bollard pull required to drag heavy trawl nets through rough swell.
When a marine engine for trawler boat operations transitions from cruising to active trawling, the mechanical governor reacts instantly to the increased propeller drag. This rapid response prevents engine bogging, keeping net geometry perfectly stable under water.
Marine Engine for Transport Vessel and Inland River Cargo Ship Hubs
Navigating shallow river systems with a fully loaded barge demands massive low-end torque. The X6170ZC350-1 acts as an ideal heavy duty cargo vessel diesel engine 258kW setup for inland transport networks.
Its 1000rpm rating matches perfectly with large-diameter, slow-turning propulsion screws. This combination generates excellent stopping power and reversing thrust, which are vital safety capabilities when handling a 2000-ton cargo barge moving downstream with a strong river current.
Workboat and Engineering Vessel Deployment
For harbor tugs, pilot boats, and dredging platforms, duty cycles consist of constant idling interspersed with sudden bursts of maximum power. The structural rigidity of this heavy-duty marine diesel engine absorbs these severe duty cycle transitions without developing thermal cracks in the cylinder liners. As a core marine propulsion engine for workboat builds, it delivers the predictable mechanical response that captains rely on during close-quarters docking maneuvers.
Maintenance, Overhaul, and Lifetime Extension Tips
Managing the Weichai X6170ZC350-1 Overhaul Interval
The standard Weichai X6170ZC350-1 overhaul interval regularly exceeds 20,000 operational hours if the vessel crew follows basic maintenance protocols. Achieving this longevity requires changing lubricating oils every 250 to 500 operating hours, depending on fuel sulfur content.
Crews must regularly inspect the zinc sacrificial anodes inside the seawater cooling circuits. Replacing these cheap anodes every six months stops galvanic corrosion from eating into the copper-nickel cores of the heat exchangers.
Step-by-Step Weichai 170mm Bore 6 Cylinder Marine Engine Overhaul
When the engine finally reaches its major overhaul milestone, its modular design significantly reduces shipyard downtime. Technicians can pull individual cylinder liners upward using standard mechanical pullers without disturbing the crankshaft alignment.
During a standard top-end refresh, look for carbon ridge accumulation at the top of the liner bore. Always replace the piston rings, connecting rod bearings, and valve guide seals with a genuine Weichai X6170ZC350-1 engine kit to maintain factory compression clearances.
Digital Fleet Protection with the Yuanhangbao Monitor
To modernise this mechanical workhorse, every factory unit can interface with advanced digital monitoring architecture. Deploying a Weichai propulsion system with Yuanhangbao monitor modules allows real-time tracking of vital operational metrics.
The digital display screen tracks oil pressure changes, freshwater temperatures, turbocharger boost levels, and exhaust gas variations across all six cylinders. If a cooling pipe clogs or oil pressure drops below safe operational limits, the system triggers audio-visual alarms, allowing the engineer to fix the issue before catastrophic engine damage occurs.
Purchasing and Logistics Support from HekoPower
Securing a Accurate Weichai X6170ZC350-1 Price Quotation
As an experienced Weichai marine engine supplier, HekoPower streamlines the procurement process for international maritime clients. When you request a Weichai X6170ZC350-1 quotation, our sales engineers calculate a comprehensive price that includes the core engine block, customized marine gearboxes, digital instrumentation panels, and export-grade packaging. We provide tier-structured discounts for fleet upgrade programs requiring multiple propulsion setups.
Shipping Logistics, Crating, and Weichai X6170ZC350-1 Delivery Time
Shipping heavy industrial machinery across international borders requires meticulous coordination. HekoPower secures all engines inside anti-moisture vacuum wraps and heavy steel-framed wooden crates to prevent rust during sea freight transit.
Our standard Weichai X6170ZC350-1 delivery time ranges from 30 to 45 days for factory-fresh builds, depending on your port destination. We handle all initial export customs documentation, ensuring a smooth port-to-port transfer.
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
What are the exact Weichai 350HP marine engine dimensions and total dry weight?
The physical footprint of the X6170ZC350-1 is built for maximum hull stability. The engine measures roughly 2300mm in length, 1100mm in width, and 1750mm in height. The net Weichai X6170ZC350-1 weight sits at approximately 3500kg. These generous structural dimensions ensure excellent heat absorption and mechanical rigidity under continuous load.
Can I access a complete X6170ZC350-1 datasheet PDF or Weichai X6170ZC350-1 maintenance manual?
Yes, HekoPower provides comprehensive technical documentation with every order. Clients can download digital copies of the technical data sheets, installation diagrams, and complete maintenance manuals through our secure client portal. These manuals contain detailed torque specifications for every bolt on the 170 series block.
How does the mechanical governor handle poor quality marine diesel fuel?
The high-pressure mechanical injection pump is highly resilient. It handles fuel viscosity changes much better than common-rail electronic systems. To protect your investment, HekoPower recommends installing a dual parallel fuel-water separator system. This allows crews to drain water out of the fuel lines while the engine keeps running.
What warranty coverage comes with a genuine Weichai X6170ZC350-1 engine from HekoPower?
Every engine supplied by HekoPower carries a comprehensive international factory warranty. This coverage usually spans 12 months from the date of vessel sea trials or 1500 operational hours, whichever comes first. We maintain a deep stock of genuine replacement parts, including fuel injectors, gaskets, and filters, ensuring minimal downtime during routine servicing.
