Yamaha MZ360 8.4hp Engines

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Yamaha MZ360 Industrial Engine  Yamaha MZ360 performance curve


Model Name MZ360 MZ360 Reduction Type
Bore x Stroke 85 x 63 mm 85 x 63 mm
Displacement 357 cc 357 cc
Compression Ratio 8.1:1 8.1:1
Max Power (Net)* 7.6 kW (10.2 hp) @ 3600 rpm 7.6 kW (10.2 hp) @ 1800 rpm
Rated Power (Net)* 6.3 kW (8.4 hp) @ 3600 rpm 6.3 kW (8.4 hp) @ 1800 rpm
Max Torque (Net)* 23.9 Nm (17.6 ft-lbf) @ 2400 rpm 47.8 Nm (35.3 ft-lbf) @ 2400 rpm
Fuel Unleaded Gasoline Unleaded Gasoline
Fuel Tank Capacity 6.1 L (1.61 gal) 6.1 L (1.61 gal)
Ignition System T.C.I. T.C.I.
Lubrication System Mechanical Splashing Mechanical Splashing
Oil Capacity 1.1 L (1.2 qt) 1.1 L (1.2 qt)
Dry Weight 33Kg (73.8 lb) 36Kg (79.4 lb)
Dimensions (L**xWxH) 424.5 x 451 x 481 mm 450 x 451 x 481 mm
  * Net horsepower and torque are measured on a production engine with the factory-installed air cleaner and muffler using Yamaha-developed test standards. Actual power output of a particular engine can vary due to manufacturing tolerance differences, as well as numerous factors such as ambient operating conditions, how the engine is maintained, the type of equipment being powered, and variances in the installation, including the intake and exhaust systems, fuel delivery, and engine cooling.
** Length dimension with Type A PTO.
*** Fuel consumption estimates are based on Yamaha testing of a production engine with the factory installed air cleaner and muffler. Actual fuel consumption will vary due to the same factors that can affect engine power as well as the operating speed in the application and other variables.

Dimensions (Basic)

MZ360 PTO A Type

Yamaha MZ360 dimensions basic

MZ360 Reduction Type

Yamaha MZ360 dimensions reduction

Dimensions (Mounting Face)

Direct Type

Yamaha MZ360 dimensions mounting face basic

PTO Type

Yamaha MZ360 dimensions mounting face reduction


Dimensions (PTO)

Yamaha MZ360 dimensions pto shaft



Yamaha MZ360 features main

Yamaha features bullet aAIR CLEANER Yamaha features bullet bINTAKE MANIFOLD Yamaha features bullet cSPARK PLUG
Yamaha features bullet dMUFFLER Yamaha features bullet eDECOMPRESSION Yamaha features bullet fCYLINDER SLEEVE
Yamaha features bullet gEXHAUST VALVE Yamaha features bullet hBALANCER  

Yamaha MZ360 MZ300 MZ250 MZ200 MZ175 features clean pto face Clean PTO Face

The clean PTO mounting face ensures customers experience minimal interference from exhaust components for easier installation to their machinery than with some competitive engines.

Variety of PTO Shaft and Mounting Face Options

EPA/CARB Compliant* 


Yamaha features bullet aAir Cleaner

Silent Semidry Air Filter Types**

Yamaha MZ360 MZ300 MZ250 MZ200 MZ175 features airfilter 1DUST CONDITIONS
Best suited for low dust conditions.


  • Generators
  • Water Pumps
  • Pressure Washers
  • Air Compressors (General Use)


Paper Element + Foam Pre-Filter Types*

Yamaha MZ360 MZ300 MZ250 MZ200 MZ175 features airfilter 2DUST CONDITIONS
Best suited for all dust conditions.


  • Generators
  • Air Compressors (Construction)
  • Harvesting Machines
  • Reel Mowers
  • Wheeled Blowers
  • Concrete Saws

Yamaha MZ360 MZ300 MZ250 MZ200 MZ175 features intake Yamaha features bullet bIntake Manifold

Intake mixture flow is optimized by utilizing a swirl effect that creates a uniform fuel/air mixture throughout the combustion chamber. This increases the speed of combustion throughout the cylinder, increasing power while decreasing fuel consumption and exhaust emissions.




Yamaha features bullet cSpark Plug

Yamaha MZ360 MZ300 MZ250 MZ200 MZ175 features sparkplug

Equipped with an industry-standard “BPR4ES” resistance-type spark plug.





Yamaha MZ360 MZ300 MZ250 MZ200 MZ175 features muffler Yamaha features bullet dMuffler

The large muffler reduces exhaust noise.





Yamaha features bullet eDecompression

Yamaha MZ360 MZ300 MZ250 MZ200 MZ175 features decompressionWhen starting the engine, the exhaust valve is held open to reduce compression pressure for easier starting.



When starting the engine:

  1. The decompression weight pushes the pin up to push the lifter.
  2. The exhaust valve is held in the open position, rather than be opened and closed by the camshaft.

When operating the engine:

  1. Centrifugal force causes the decompression weight to open, which lowers the pin.
  2. With the pin lowered, the exhaust valve operates normally, and is controlled by the camshaft.


Yamaha features bullet fCylinder Sleeve

Yamaha MZ360 MZ300 MZ250 MZ200 MZ175 features cylinderA cast iron sleeve is used to increase engine durability and decrease cylinder wear. Due to the difference in expansion rates of aluminum and cast iron, a “Spiny” sleeve design is used to reduce air pockets created by different amounts of expansion. This design also promotes heat transfer from sleeve to block, allowing the cooling fins to work more effectively.


Yamaha MZ360 MZ300 MZ250 MZ200 MZ175 features valve Yamaha features bullet gExhaust Valve

The exhaust valve is manufactured from high-heat-resistant SUH3 steel. The entire valve surface has a polished Tufftride® finish, increasing hardness and decreasing friction through the valve guides. The valve seat is Stellite® coated to increase resistance to the 700+° C valve face temperature exposure.

Yamaha MZ360 features inset balancer Yamaha features bullet hBalancer

Due to the larger displacement of the MZ360 engine, a balancer shaft assembly is utilized to minimize vibration.






 * Consult Billiou’s. Inc. for availability from Yamaha Motor Corporation, USA. Available options may require extended lead time for compliance testing when applicable.

Website link Yamaha Engine Website

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