How Many DEUTZ Marine Engines Are There? Models, Series & Applications

A vessel sends an RFQ:

“We need parts for a DEUTZ marine engine.”

That's a useful start.

But which DEUTZ?

Is it an air-cooled F3L912 running an onboard generator?

A BF6M1013M?

A larger engine from the 1015M family?

Or an older DEUTZ engine that has been operating aboard the vessel for decades?

DEUTZ has produced diesel engines for many generations, and numerous engine families have been used for marine propulsion, onboard generators, emergency generators and auxiliary machinery.

So when someone asks:

“How many DEUTZ marine engines are there?”

there isn't one useful lifetime number.

A better way to understand the range is to look at the main DEUTZ marine engine families, individual models and marinized configurations that engineers, vessel operators and parts buyers are likely to encounter.

For parts and engine information, visit our DEUTZ Marine Engine Spare Parts page.

You can also browse our complete DEUTZ Engine Parts Catalogue.

Need a specific component? Request a Quote or email request@alfamarinespareparts.com.

What Are the Main DEUTZ Marine Engine Families?

Important DEUTZ families encountered in marine, generator and marinized auxiliary applications include:

DEUTZ 912
DEUTZ 913
DEUTZ 914
DEUTZ 1011
DEUTZ 1012
DEUTZ 1013M
DEUTZ 1015M
DEUTZ 2011
DEUTZ 2012
DEUTZ 2013
DEUTZ 2015M
Selected TCD engines
Legacy DEUTZ-MWM engines
Other application-specific and marinized DEUTZ engines

There is an important distinction here.

Not every DEUTZ diesel installed aboard a vessel was originally supplied as a dedicated marine propulsion engine.

DEUTZ engines have also been widely used in industrial, agricultural, construction and stationary applications. Some have subsequently been incorporated into marine generator sets, hydraulic power packs, pumps and other marinized equipment.

That's why the complete engine designation, engine serial number and installed application matter when ordering replacement parts.

DEUTZ FL 912 Marine Engines

Let's start with one of the classic DEUTZ marine diesel families.

The DEUTZ FL 912 is an air-cooled four-stroke diesel-engine series.

The documented marine range includes four important naturally aspirated inline configurations:

EngineCylindersCooling
F3L912	3	Air cooled
F4L912	4	Air cooled
F5L912	5	Air cooled
F6L912	6	Air cooled

So even within one engine family, we already have four different cylinder configurations.

For dedicated information and components, visit:

DEUTZ F3L912 Marine Engine Parts

DEUTZ F4L912 Marine Engine Parts

DEUTZ F5L912 Marine Engine Parts

DEUTZ F6L912 Marine Engine Parts

Why Are DEUTZ 912 Engines So Recognizable?

One reason is their air-cooled architecture.

Walk into an engine room containing an older DEUTZ 912 and you're looking at a very different cooling arrangement from a conventional liquid-cooled marine diesel.

The engine relies on forced air cooling rather than a conventional liquid jacket-water system.

But:

Air cooled does not mean cooling maintenance disappears.

Engineers still need to pay attention to:

Cooling blower condition
Fan and drive components
Cooling fins
Air passages
Oil cooling
Engine-room ventilation
Dirt and debris around cooling surfaces

Restricted airflow can cause serious operating problems on an air-cooled engine.

Real Situation: “We Need Parts for a DEUTZ 912”

Imagine receiving this message from a vessel:

“DEUTZ 912. Need piston rings urgently.”

Before quoting, we still need more information.

Is the engine:

F3L912?

F4L912?

F5L912?

or:

F6L912?

And even after identifying the model, we should still request the engine serial number and existing part number whenever available.

The same engine-family number does not make every component interchangeable.

DEUTZ 913 Engines in Marine & Auxiliary Applications

The DEUTZ 913 is another important legacy air-cooled family.

Examples from the wider 913 family include:

F3L913
F4L913
F5L913
F6L913
BF4L913
BF6L913
BF6L913C

These engines have been used across numerous industries.

In marine environments, 913-family engines can be encountered in applications such as:

Generator sets
Auxiliary machinery
Pump drives
Hydraulic equipment
Fishing-vessel machinery
Workboats
Emergency power installations

For parts identification, don't assume an industrial 913 installation and a marinized 913 installation have identical ancillary equipment.

DEUTZ 914 Marine & Generator Engines

The DEUTZ 914 represents a later development of DEUTZ's well-known air-cooled engine architecture.

The broader family includes configurations such as:

F3L914
F4L914
F5L914
F6L914
BF4L914
BF6L914

Depending on the exact engine and installation, 914-series engines can be encountered in marine-related generator and auxiliary applications.

Again, the complete designation matters.

If the nameplate says BF6L914, don't shorten the inquiry to simply:

“DEUTZ 914.”

Those letters help identify the engine configuration.

What About DEUTZ 1011 & 2011 Engines?

Smaller engines from the 1011 and 2011 families can also be found aboard vessels in auxiliary equipment.

Examples from the broader families include:

F2L1011
F3L1011
F4L1011
BF4L1011
F2M2011
F3M2011
F4M2011
BF4M2011

Applications can include:

Small generator sets
Hydraulic power packs
Pumps
Refrigeration equipment
Auxiliary machinery
Specialized onboard equipment

This is where terminology becomes important.

A DEUTZ engine installed aboard a vessel is not necessarily a dedicated factory marine propulsion engine.

It may be an industrial base engine incorporated into a marinized auxiliary package.

That distinction can affect parts selection.

DEUTZ 1012 & 2012 Engines

The 1012 and 2012 families are another group that can appear in generator and marinized equipment.

These liquid-cooled engines have been widely used in industrial and generating applications, with applicable configurations incorporated into marine equipment.

If you're sourcing a cooling component for one of these engines, don't simply request:

“DEUTZ 2012 water pump.”

First establish:

Complete engine model
Engine serial number
Existing pump number
Installed application
Cooling arrangement
Marinization equipment where applicable

Some cooling components can belong to the base engine while others belong to the marinization package.

DEUTZ 1013M Marine Engines

The DEUTZ 1013M is one of the important liquid-cooled DEUTZ families associated with marine applications.

The wider 1013 platform includes four- and six-cylinder configurations.

Marine requirements can involve engines around the:

BF4M1013M

and:

BF6M1013M

families, with additional suffixes depending on the exact configuration.

This is a good example of why:

“DEUTZ 1013 injector”

isn't a complete parts inquiry.

We still need to identify the actual engine.

Real Situation: “Need DEUTZ 1013 Water Pump Today”

The vessel has a sailing deadline.

The chief engineer reports coolant leakage from the engine water pump.

Purchasing sends:

“Urgent DEUTZ 1013 water pump — vessel sailing tomorrow.”

It's tempting to dispatch the first pump that looks correct.

But before doing that, verify:

Complete engine model

Engine serial number

Existing pump number

Cooling arrangement

Photographs

Application

Shipping the wrong pump quickly is worse than spending a little more time identifying the correct component.

DEUTZ 1015M Marine Engines

Moving higher in the range brings us to the DEUTZ 1015M family.

The 1015 platform includes larger V-engine architecture, with six- and eight-cylinder configurations within the wider family.

Marine-related requirements can involve configurations around:

BF6M1015M

and:

BF8M1015M

depending on the exact engine.

A V6 and V8 can belong to the same broad engine family, but that obviously doesn't mean all internal components are interchangeable.

Always identify the complete engine before ordering.

DEUTZ 2013 & TCD 2013 Engines

Later DEUTZ generations include the 2013 / TCD 2013 platform.

These engines introduced more modern fuel and engine-management technology compared with many older mechanically controlled DEUTZ engines.

Depending on the installation, they can be encountered in:

Generator sets
Auxiliary equipment
Commercial machinery
Marinized packages

Correct identification becomes particularly important for:

Fuel injectors
High-pressure fuel components
Sensors
Wiring
Electronic controls
Turbochargers
Cooling components

With electronically controlled engines, a component having the same connector or external appearance does not prove compatibility.

DEUTZ 2015M Marine Engines

The DEUTZ 2015M represents another important liquid-cooled marine engine family.

Parts requirements can include:

Pistons
Piston rings
Cylinder components
Bearings
Cylinder heads
Injectors
Fuel-system components
Turbochargers
Water pumps
Oil pumps
Sensors
Control components
Gaskets
Seals
Overhaul components

With later engine generations, serial-number identification becomes increasingly important because fuel and electronic components can be configuration-specific.

What About Modern DEUTZ TCD Engines?

Modern TCD-series DEUTZ engines can also appear in marine-related auxiliary and marinized installations.

But this is another area where terminology matters.

Do not assume every DEUTZ TCD engine is a dedicated factory marine engine.

Many TCD platforms have extensive industrial applications and can be incorporated into specialized generator sets and other marine equipment.

When requesting parts, identify both:

The DEUTZ base engine

and, where relevant:

The marinization or equipment package

This is especially important for cooling, exhaust and mounting components.

What About Legacy DEUTZ-MWM Engines?

The DEUTZ story in marine applications also extends beyond the compact engine families.

Legacy DEUTZ-MWM / MWM engines can be encountered in older marine and generating installations.

These engines can be considerably different from an F4L912 or BF6M1013M.

Yet they can still appear in searches and RFQs simply described as:

“DEUTZ marine engine.”

For older engines, identification should begin with:

Complete engine designation
Engine number
Nameplate photographs
Existing part number
Old spare-parts catalogue references
Photographs of the required component

Do not guess a modern replacement from appearance alone.

So How Many DEUTZ Marine Engines Are There?

Here's the most useful answer:

There isn't one fixed number covering every DEUTZ marine engine, auxiliary engine and marinized DEUTZ installation produced over the company's long engine history.

Instead, there are multiple engine families containing numerous individual configurations.

Important groups include:

Engine FamilyGeneral Type / Application
912	Classic air-cooled inline engines
913	Legacy air-cooled inline engines
914	Later air-cooled engines
1011 / 2011	Compact auxiliary applications
1012 / 2012	Liquid-cooled generator / auxiliary applications
1013M	Liquid-cooled marine family
1015M	Larger liquid-cooled V-engine family
2013 / TCD 2013	Later electronically controlled platform
2015M	Larger liquid-cooled marine family
TCD	Modern industrial / applicable marinized installations
DEUTZ-MWM	Legacy marine and generating engines

Within these families are different:

Cylinder configurations
Power ratings
Fuel systems
Turbocharger arrangements
Cooling systems
Applications
Production generations

So rather than asking only:

“How many DEUTZ marine engines are there?”

the more useful question for parts sourcing is:

“Which exact DEUTZ engine is installed?”

Air-Cooled vs Liquid-Cooled DEUTZ Engines

One of the easiest ways to understand the DEUTZ range is by cooling architecture.

Air-Cooled DEUTZ Families

Classic examples include:

912

913

914

DEUTZ became particularly well known for durable air-cooled diesel-engine technology.

Liquid-Cooled DEUTZ Families

Important later families include:

1012

1013M

1015M

2012

2013

2015M

and applicable later platforms.

These installations can involve:

Coolant pumps
Thermostats
Coolant pipes
Oil coolers
Heat exchangers
Temperature sensors
Hoses
Gaskets
Seals

Marine conversion equipment can also add separate seawater-side components.

Are DEUTZ Engines Used Only for Marine Propulsion?

No.

A DEUTZ aboard a vessel might drive the propeller.

But it could also drive:

Main generator
Auxiliary generator
Emergency generator
Hydraulic system
Pump
Refrigeration equipment
Other auxiliary machinery

This distinction matters when sourcing parts.

Generator and propulsion configurations can have different:

Governors
Cooling equipment
Exhaust arrangements
Flywheel housings
Electrical components
Operating speeds
Mounting arrangements

Tell your supplier what the engine actually does onboard.

Real Situation: “It's a DEUTZ Generator — That's All We Know”

This happens regularly with older vessels.

The purchasing department knows there is a DEUTZ generator onboard but doesn't have the engine manual.

What should you send?

Start with:

Engine nameplate

Full engine photograph

Generator-set nameplate

Existing component

Visible part numbers

Rated engine speed

Those details can make the difference between identifying the correct part and guessing.

Can Industrial DEUTZ Parts Fit a Marine DEUTZ Engine?

Sometimes a component may be shared across different applications.

But never assume interchangeability.

A DEUTZ base engine can appear in:

Construction equipment
Agricultural machinery
Industrial equipment
Stationary generators
Marine generator packages
Propulsion installations

Marine or marinized configurations can differ in:

Cooling equipment
Exhaust arrangement
Fuel equipment
Turbocharger
Flywheel housing
Electrical equipment
Governor
Mounting
Ancillary systems

Verify the part against the actual engine configuration.

Are DEUTZ 1013 and 1015 Parts Interchangeable?

Do not assume so.

They are different engine platforms.

Even within one engine family, parts can differ according to:

Cylinder count
Serial number
Engine rating
Production revision
Fuel system
Turbocharger
Cooling arrangement
Application

A component looking similar is useful for identification.

It is not proof of compatibility.

Which DEUTZ Marine Engine Is the Most Common?

There isn't one DEUTZ model that can reliably be called the most common worldwide.

It depends on:

Vessel type
Vessel age
Geographic market
Original shipyard
Required power
Propulsion versus auxiliary duty

From a spare-parts perspective, the classic 912, 913, 914, 1013 and 1015 families are especially recognizable because many engines and related installations have remained in service for years.

Why Are Older DEUTZ Engines Still Important?

Commercial engines can operate for decades.

If an older engine continues performing its job reliably, there may be no reason for an owner to replace it simply because a newer generation exists.

Eventually, however, it will need parts.

Requirements can include:

Injectors
Fuel injection pumps
Pistons
Piston rings
Cylinder components
Bearings
Cylinder heads
Turbocharger components
Oil pumps
Cooling components
Gaskets
Seals
Filters
Overhaul components

For legacy engines, correct identification can sometimes be harder than the repair itself.

“My Old DEUTZ Part Number Doesn't Exist Anymore”

Keep the old number.

Don't discard a part number simply because it doesn't immediately appear in a modern catalogue.

During an engine's service life, part numbers can be:

Superseded
Replaced
Updated
Cross-referenced
Incorporated into newer assemblies

An old reference can be the clue needed to identify the correct replacement.

Send every number you have.

What DEUTZ Engine Parts Can Be Sourced?

Depending on engine model and availability, Alfa Marine Spare Parts can assist with sourcing applicable components including:

Fuel System

Fuel injection pumps
Injectors
Injector nozzles
Fuel feed pumps
Fuel lines
Filters
Fuel-system components

Cylinder & Internal Engine Components

Pistons
Piston rings
Cylinder liners / barrels
Connecting rods
Main bearings
Connecting-rod bearings
Bushings

Cylinder Heads & Valve Train

Cylinder heads
Inlet valves
Exhaust valves
Valve guides
Valve seats
Valve springs
Rocker components
Head gaskets

Turbocharging

Turbochargers
Turbocharger cartridges
Repair components
Gaskets
Oil-line components

Cooling

Depending on engine configuration:

Water pumps
Thermostats
Heat-exchanger components
Cooling blowers
Fan components
Coolant pipes
Sensors
Gaskets and seals

Lubrication

Oil pumps
Oil coolers
Filters
Pressure components
Gaskets and seals

Electrical & Control

Depending on engine generation:

Starters
Alternators
Sensors
Senders
Solenoids
Wiring components
Electronic controls

Overhaul Components

Gasket sets
Seal kits
Bearing sets
Pistons
Piston rings
Cylinder liners / barrels
Cylinder-head components
Other overhaul components

How Do I Identify My DEUTZ Engine?

Start with the engine nameplate.

For accurate parts identification, send:

Complete DEUTZ engine model

Engine serial number

Existing part number

Part description

Quantity

Application — propulsion / generator / auxiliary

Rated speed where relevant

Delivery destination

For difficult components, include photographs.

For example:

Engine: DEUTZ BF6M1013M

Serial number: [number]

Part required: Fuel injector

Existing number: [number]

Quantity: 6 pcs

Application: Marine generator

Delivery: Rotterdam, Netherlands

That's considerably easier to identify than:

“Need six DEUTZ injectors.”

DEUTZ Marine Engine FAQs

How many DEUTZ marine engines are there?

There isn't one useful fixed lifetime number.

DEUTZ has produced multiple marine-capable engine families, while other DEUTZ industrial engines have also been incorporated into marinized generator and auxiliary packages.

Important families include 912, 913, 914, 1013M, 1015M and 2015M, alongside other auxiliary, TCD and legacy engine platforms.

What DEUTZ 912 marine engines are there?

The documented FL 912 marine range includes:

F3L912

F4L912

F5L912

F6L912

These are three-, four-, five- and six-cylinder air-cooled engines.

Are DEUTZ marine engines air cooled?

Some are.

The classic 912, 913 and 914 families are well known for DEUTZ's air-cooled architecture.

Other DEUTZ marine and marinized engines use liquid cooling.

Are all DEUTZ engines found aboard ships marine engines?

No.

Some are dedicated marine configurations, while others are industrial engines incorporated into marinized generators, pumps, hydraulic systems or auxiliary packages.

Is every BF6M1013 a marine engine?

No.

The broader 1013 platform has been used in multiple applications.

The complete engine designation and installed configuration should be verified.

Can an industrial DEUTZ water pump fit a marine engine?

Possibly, but don't assume so.

The base engine may share some components, while the marine cooling arrangement can contain different equipment.

Verify the pump using the complete engine model, serial number and existing part number.

Are DEUTZ 1013 and 1015 parts the same?

No.

Do not treat the 1013 and 1015 as interchangeable engine platforms.

Are parts still available for older DEUTZ engines?

Availability depends on the exact model and component.

Depending on the requirement, sourcing options may include genuine, OEM, replacement, new-old-stock or reconditioned components.

Can you identify a DEUTZ engine from photographs?

Photographs can help considerably, particularly when combined with the engine nameplate, serial number and visible component numbers.

Send several clear photographs when identification is difficult.

What if my old DEUTZ part number has been superseded?

Send the old number anyway.

Historical references can be useful for tracing the applicable newer replacement or current cross-reference.

Need Parts for a DEUTZ Marine Engine?

Whether you're maintaining an air-cooled DEUTZ 912/913/914, a liquid-cooled 1013M/1015M/2015M, a marinized auxiliary engine or an older DEUTZ installation, correct identification should come before ordering.

Alfa Marine Spare Parts can assist with sourcing applicable components for:

Routine maintenance
Fuel-system repairs
Generator servicing
Cooling-system repairs
Cylinder-head work
Engine overhaul
Planned dry dock
Urgent vessel requirements

For more information, browse our DEUTZ Marine Engine Spare Parts page.