In commercial marine operations, engine reliability is not just about horsepower — it is about continuous performance, fuel efficiency, durability, and the ability to operate under challenging conditions.
The Cummins K38-M 1000HP marine propulsion engine is designed to meet these demanding requirements. With a rated power of 746 kW (1000 HP) at 1800 rpm, this V12 diesel engine delivers strong propulsion power and stable performance for a wide range of commercial vessels, including cargo ships, fishing boats, tugboats, workboats, passenger vessels, and pushboats.
As an experienced marine equipment supplier, Sinooutput provides Cummins marine engines together with complete propulsion system solutions, helping shipowners and shipyards achieve reliable vessel performance from engine selection to installation and after-sales support.
The Cummins K38-M is part of the proven K-series marine engine family, recognized worldwide for its robust structure and long service life.
Designed for continuous-duty marine applications, the engine is suitable for vessels that require long operating hours and dependable propulsion power.
| Specification | Details |
|---|---|
| Engine Model | Cummins K38-M |
| Rated Power | 746 kW / 1000 HP |
| Rated Speed | 1800 rpm |
| Engine Type | V12, 4-stroke diesel engine |
| Displacement | 37.9 L |
| Bore × Stroke | 159 × 159 mm |
| Aspiration | Turbocharged / LTA |
| Duty Rating | Continuous Duty |
| Rated Torque | 3956 N·m |
| Peak Torque | 4238 N·m @ 1400 rpm |
| Fuel Consumption | Approx. 193 L/h at rated power |
| Dry Weight | Approx. 4218 kg |
With its large displacement and high torque output, the K38-M provides excellent low-speed pulling capability, making it especially suitable for heavy-duty commercial vessels.

The biggest advantage of the Cummins K38-M is its ability to deliver stable power over long operating periods.
Unlike engines designed only for short bursts of power, the K38-M continuous-duty rating allows vessels to maintain reliable operation during extended voyages, towing operations, cargo transportation, and offshore activities.
Its key performance advantages include:
With 746 kW / 1000 HP available at 1800 rpm, the K38-M provides sufficient propulsion power for medium and large commercial vessels.
It is an ideal choice for:
Marine vessels often operate under changing loads caused by waves, currents, and cargo conditions.
The Cummins K38-M delivers:
This strong torque performance helps vessels achieve smoother acceleration, better maneuverability, and improved operational reliability.
The V-type 12-cylinder configuration provides:
Combined with turbocharging and aftercooling technology, the K38-M maintains efficient combustion and stable performance even during high-load operation.
Selecting the right engine is only the first step in vessel propulsion design.
A properly matched propulsion system requires coordination between engine power, gearbox ratio, propeller size, shaft system, and vessel characteristics.
At Sinooutput, we provide a complete marine propulsion solution, including:
Our engineering team evaluates vessel parameters including:
to recommend the most suitable propulsion configuration.
The Cummins K38-M is widely used in commercial marine projects, including:
High torque output makes it suitable for towing and pushing operations where strong pulling force is required.
Provides reliable propulsion for vessels operating long hours and carrying heavy loads.
Offers stable performance for offshore fishing operations.
Ensures dependable operation and passenger safety through consistent power delivery.
Designed for professional marine applications requiring durability and continuous operation.
Choosing an engine supplier is not only about purchasing equipment. A successful vessel project requires technical support, system matching, and reliable after-sales service.
Sinooutput provides:
✅ Professional marine equipment supply experience
✅ Complete propulsion system solutions
✅ Engine and gearbox matching support
✅ Global export experience
✅ Technical consultation before and after purchase
✅ Spare parts and lifetime engineering support
From new vessel construction to repowering projects, Sinooutput helps shipyards and shipowners build efficient and reliable vessels.

If you are planning a new vessel project or upgrading an existing vessel, send us your vessel information:
Our engineering team will help you prepare a suitable propulsion solution.
Sinooutput – Your One-Stop Marine Equipment & Propulsion Solution Partner.