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Features 

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Clean Emissions 

Building off the Yanmar reputation for clean, quiet, fuel 
efficient and reliable compact diesel engines MINIMAX 
has achieved compliance with 2008 EPA Tier 4 and EU 
stage III A exhaust emissions regulations.   

 

Reliable, Durable, and Quiet 

MINIMAX offers enhanced noise and vibration 
characteristics due to its Ladder Frame block design, a 
stiffer crank and pistons and finer tolerance in the 
journal. Gear noise reduction is achieved through an 
improved gear tooth profile resulting in less mechanical 
noise. 

 

Fuel Delivery and Economy 

A newly designed, in-line type fuel injection pump is 
utilized to assure more precise fuel delivery,  and control. 
The result is reduced emissions, improved performance 
over a wide range of applications and good fuel 
economy which assures that Yanmar’s reputation for 
superior starting characteristics continues. 

 

Ultra-Compact and High Performance 

MINIMAX offers best-in-class power density as   
measured by the ratio of the engine’s output relative to 
the engine’s overall external dimensions 

 

Easy Installation 

With 176 mm wide base, MINIMAX engines is an easy 
replacement for most major applications in this 
displacement category.   

 

Additional Information

                 

Yanmar America Corp                   Distributed By: 
951 Corporate Grove Drive 
Buffalo Grove, IL 60089 
Website  

www.yanmar.com 

Standard Engine Equipment 

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General 

Intake manifold & exhaust manifold 
Muffler/Exhaust Pipe gasket (shipped loose) 

 

Lubrication System 

3.7 L Capacity Deep Oil Pan, Side Drain 
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 
Stop Solenoid Timer (shipped loose) 

 

Fuel System 

In-line MC Fuel Injection Pump 
Mechanical Fuel 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 
  71°C (160°F) Thermostat 
  Temperature Switch 

  

Fan Belt 

 

Power Take Off 

  Flywheel, SAE 6 1/2” 
  Flywheel Housing SAE #5 (111 mm deep) 
   

3TNM72-HGE General Specification 

  23.6 HP

 (

17.6 kW) @ 3600 rated rpm*  

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Type

•  •  • 3 Cylinder, 4-Cycle, Liquid Cooled Diesel Engine 

Bore

 •  •  •  •  •  •  •  •  •  •  •  •  •  •  •  •   •  •  •  •  •  •   72 mm 

Stroke

 •  •  •  •  •  •  •  •  •  •  •  •  •  •  •  •   •  •  •  •  •   74 mm 

Displacement

 •  •  •  •  •  •  •  •  •  •  •  •   •  •  •  •  •     .904 L 

Aspiration

 •  •  •  •  •  •  •  •  •  •  •  •   •    Naturally Aspirated 

Combustion System 

•  •  •  •  •  •  •    •  •   Indirect Injection 

Rotation (from flywheel end) 

• • •  •  •  •   Couterclockwise 

Dry Weight  

•  •   •  •   •  •   •  •   •  •   •   •  •242 lbs. (110 kg)

 

MINIMAX IDI Series

                  

Industrial Diesel Engine

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Image shown may not be actual engine 

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