3TNM74F-NGGE Industrial Engines | TNM | Final Tier 4 TNM

3 Cylinder, 4-Cycle, Liquid Cooled Diesel Engine

Document Icon Brochure
File Size: 582.43 KB

General Engine Data


Model 3TNM74F-NGGE

Vertical Cylinder, Inline, 4-cycle, Water-Cooled Diesel Engine

Bore 74 mm
Stroke 77 mm
Displacement .993L
Aspiration Naturally Aspirated
Combustion System Indirect Injection
Rotation (from flywheel end) Counterclockwise
Number of Cylinders


Rated Output 11.8/1800 (hp/rpm)



Clean Emissions

Building off the proven TNV design, Yanmar has achieved superior exhaust emissions by improving the combustion chamber and increasing the displacement and compression ratio. Yanmar engines meet the strict NTE and NRTC test requirements for 2014 Final Tier 4.

Reliable and Durable

The TNM engines now proudly take up the running as YANMAR’s premium small industrial diesel. They offer even more enhanced durability due to better block cooling, a stiffer crank and pistons, finer tolerance in the journal and more. CAE analysis has brought lower vibrations and higher strength to the mounting structure for even better reliability in heavy-duty jobs.

Fuel Delivery and Economy

YANMAR has refined the combustion process to assure more precise fuel delivery and control. The result is reduced emissions, improved performance over a wide range of applications, and increased fuel economy, assuring that Yanmar’s reputation for superior starting characteristics continues.

Noise Level Reduction

YANMAR’s original CAE techniques have optimized the stiffness, minimized transformation and reduced radiant noise in the cylinder block. Gear noise reduction is achieved through an improved gear tooth profile resulting in less mechanical noise.

Lubrication System

3.4 L Capacity Deep Oil Pan

Trochoid Oil Pump

Paper Element Oil Filter

Oil Pressure Switch

Crankcase Breather, Closed Type

Electrical System

12V, 40 Amp Alternator

12V Starter Motor

12V Super Quick Glow Plugs

Preheat Relay (shipped loose)

Stop Solenoid Timer, 1 second (shipped loose)

Fuel System

In-line MC Fuel Injection Pump

Mechanical Fuel Feed Pump

Paper Element Fuel Filter

Water Separator (shipped loose)

Stop Solenoid, Integral to Fuel Injection Pump

Cooling System

Water Pump, Belt Driven

5-Blade, 310mm Cooling Fan—Pusher Type

160ºF (71ºC) Thermostat

Temperature Switch

Fan Belt

Power Take Off

Flywheel, SAE 6 1/2″

Flywheel Housing, SAE #5 t=111