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Cummins K38-M 1000HP Marine Engine: Reliable Power Solution for Commercial Vessels

By Rita September 1st, 2026 97 views
Cummins K38-M 1000HP Marine Engine: Reliable Power Solution for Commercial Vessels

High-Performance Continuous-Duty Marine Propulsion Engine for Demanding Operations

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.


Cummins K38-M Marine Engine Overview

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.

Main Specifications

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.



Powerful V12 Performance for Marine Applications

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:

1. 1000HP Continuous Power Output

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:

  • Tugboats requiring strong bollard pull
  • Cargo vessels operating long routes
  • Fishing vessels working in harsh marine environments
  • Passenger vessels requiring reliable schedules
  • Workboats performing continuous operations

2. High Torque for Heavy-Duty Operations

Marine vessels often operate under changing loads caused by waves, currents, and cargo conditions.

The Cummins K38-M delivers:

  • 3956 N·m rated torque
  • 4238 N·m peak torque at 1400 rpm

This strong torque performance helps vessels achieve smoother acceleration, better maneuverability, and improved operational reliability.


3. Proven V12 Diesel Structure

The V-type 12-cylinder configuration provides:

  • Excellent power density
  • Smooth engine operation
  • Strong mechanical durability
  • Long service life

Combined with turbocharging and aftercooling technology, the K38-M maintains efficient combustion and stable performance even during high-load operation.

Complete Marine Propulsion System Solution

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:

Marine Engine

  • Cummins marine propulsion engines
  • Various horsepower options for different vessel types

Marine Gearbox

  • Gearbox selection based on engine power and vessel requirements
  • Suitable reduction ratios for optimized propeller performance

Propeller & Shafting System

  • Propeller design and matching
  • Stern shaft supply
  • Complete shaft line solutions

Steering System

  • Hydraulic steering systems
  • Rudder and control solutions

Supporting Systems

  • Cooling system
  • Exhaust system
  • Engine control system
  • Spare parts supply
  • Technical consultation

Our engineering team evaluates vessel parameters including:

  • Vessel length and beam
  • Vessel displacement
  • Required speed
  • Operating conditions
  • Propeller requirements
  • Navigation area

to recommend the most suitable propulsion configuration.

Applications of Cummins K38-M 1000HP Marine Engine

The Cummins K38-M is widely used in commercial marine projects, including:

Tugboats

High torque output makes it suitable for towing and pushing operations where strong pulling force is required.

Cargo Vessels

Provides reliable propulsion for vessels operating long hours and carrying heavy loads.

Fishing Vessels

Offers stable performance for offshore fishing operations.

Passenger Boats

Ensures dependable operation and passenger safety through consistent power delivery.

Workboats and Offshore Vessels

Designed for professional marine applications requiring durability and continuous operation.

Why Choose Sinooutput for Cummins Marine Engine Solutions?

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.



Looking for Cummins K38-M 1000HP Marine Engine?

If you are planning a new vessel project or upgrading an existing vessel, send us your vessel information:

  • Vessel type
  • Length and beam
  • Displacement
  • Required speed
  • Current engine information
  • Gearbox and propeller details

Our engineering team will help you prepare a suitable propulsion solution.

Sinooutput – Your One-Stop Marine Equipment & Propulsion Solution Partner.

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