S4 Series · 354 L · IMOTierⅡ
S4 Series Marine Engine
Models: 9S4C6854-6.5
Fuel type: ordinary diesel, heavy fuel oil 380cst/50°C
5040
Power range (kW)
650
Speed range (r/min)
Product Advantages
- Safe and reliable. Safety factor of shafting parts higher than ship classification rule standards, ensuring parts are safe and reliable.
- Side-pull bolts arranged on the block, ensuring optimal stress distribution in the block, reducing part deformation and extending service life.
- Strong power. High power, with single-cylinder power of 560kW.
- Mean effective pressure of 26.3bar, with high power density.
- Optional pulse dual-turbocharger intake and exhaust system combined with an intelligent air-supplement device, for faster dynamic response and lower acceleration smoke.
- Efficient and eco-friendly. Refined combustion organization achieves a fuel consumption rate of 182g/kWh.
- Overall matching design of flame-land ring, cylinder liner honing pattern, piston rings and piston, effectively reducing oil consumption to 0.5g/kWh.
- Strong interactivity. Proprietary safety control system enables intelligent control according to customer needs and can integrate external control logic.
- Adaptive development configurations are made according to customer needs to meet customer requirements to the greatest extent.
Specifications
| Engine type | four-stroke, water-cooled, inline, turbocharged and intercooled |
| Bore / stroke (mm) | |
| Number of cylinders | 9 |
| Displacement (L) | 354 |
| Torque reserve (%) | |
| Oil consumption rate (g/kW·h) | ≤0.5 |
| Minimum fuel consumption rate (g/kW·h) | 182 |
| Idle speed (r/min) | 325 |
| Noise (dB(A)) | ≤104 |
| Crankshaft rotation direction | clockwise (viewed from the flywheel end) |
| Overall dimensions (L×W×H) (mm) | 8011×2565×4650 |
| Net weight (kg) | 51000 |
Note: product parameters and images are for reference only and are subject to change without notice.
Model Line-up
| Series | Model | Power (kW / Ps) | Speed (rpm) | Technology route | Emission level | Power rating |
|---|---|---|---|---|---|---|
| S4 | 9S4C6854-6.5 | 5040/6854 | 650 | mechanical unit injector | IMOTierⅡ | P1(MCR) |
Request a Quote
Send the model designation (for example 9S4C6854-6.5), the required quantity and your destination port.
At a glance
The S4 Marine comes from an original Weichai diesel engine supplier and is built as a four-stroke, water-cooled, inline, turbocharged and intercooled unit, with 354 L displacement. Rated output spans 5040 kW. It is supplied to meet IMOTierⅡ emission requirements. Typical duty is marine propulsion service.
Technical details
The Weichai S4 Marine is built on a four-stroke, water-cooled, inline, turbocharged and intercooled configuration with 9 cylinders architecture. Displacement is 354 L. It is offered for 182 operation. For installation planning, the unit has a dry weight of 51000 kg and an idle speed of 325 r/min.
Typical applications
The Weichai S4 Marine is specified for marine propulsion duty. Confirmed applications include the following, and we can advise on suitability for your machine:
- Fuel type: ordinary diesel
- Heavy fuel oil 380cst
- 50°C
S4 Marine frequently asked questions
What is the power range of the Weichai S4 Marine?
The S4 Marine covers 5040 kW. Confirm the exact sub-model code before ordering, because output varies across the model line-up.
Which emission standard does the S4 Marine meet?
This unit is offered to IMOTierⅡ. Tell us your destination market and we will confirm the certification route before shipment.
Is the S4 Marine a genuine Weichai engine?
Yes. Units are sourced through controlled supply channels to original factory specification and are supplied with export packing and documentation.
How is the S4 Marine shipped and how long does delivery take?
Engines are crated for export and consolidated at the port. Send your model designation, quantity and destination port for a firm quotation and lead time.
What is the configuration of the S4 Marine?
The S4 Marine is built on a four-stroke, water-cooled, inline, turbocharged and intercooled, 9 cylinders, 354 L of displacement layout. Send us your machine model if you need confirmation that this layout fits your installation.