Our single-cylinder, air-cooled direct injection diesel engines are EPA & CARB exhaust emission compliant and utilize a counter-balancing system for smooth, high-speed operation. Multiple PTO shaft options are available along with electric or recoil starting. Two power levels are offered.


Meeting Strict Emissions Standards

From January 1, 2010, the new air-cooled diesel engine meets and passes all of the EPA's strict Tier 4 standards. Designed with the environment in mind, this engine is in tune with the needs of the times.

Low Vibration & Low Noise

Superior vibration and noise reduction is achieved through the use of precision balancers. This leads to operating comfort even under long work hours.

Compact, Diesel Injection Engine = Easy Installation & Low Fuel Consumption

Keeping with the tradition of compact design, the new LV series is simple to install. It fits in cramped spaces without sacrificing power and performance. Yanmar's proprietary direct injection technology allows the engine to sip rather than gorge on fuel. This means lower running cost in the world of rising fuel prices.

Quick and Easy Start

Starting is a breeze with the standard recoil starter. Starter motor and switch are also available as an option.


Engine Type
Air Cooled, 4 cycle, Vertical Cylinder
Number of Cylinders
Bore x Stroke
86mm x 75 mm
Combustion Type
Direct Injection
Total Displacement
435 cc
Natural Aspiration
Valves per Cylinder
Rated Speed
3600 rpm
Net Intermittent
9.1 Hp[6.8kW]/3600rpm
Net Continuous HP
8.3hp [6.2kW]/3600rpm
Direction of Rotation
Counter Clockwise, Viewed from PTO Side
Crankshaft Type
Straight Keyed, Tapered or Threaded
Starting System
Recoil or Recoil/12 V Electric
Decompression System
Manual Type with Auto-return Lever
Charging System
12 Volt, 15 Amps (for Electric Start Models)
Electric Stop Device
Optional, Fuel Stop Solenoid (for Electric Start Models)
Cold Start Aid
Optional, Intake Air Heater (for Electric Start Models)
Fuel Tank Capacity
4.7 liters
Brake Specific Fuel Consumption at Rated Output
279 g/kW-hr
Lubrication System
Pressure Lubrication with Trochoid Pump
Oil Capacity
1.60 Liters [0.60 Effective]
Exhaust System
Expansion Silencer with Cover
Air Cleaner
Dry-Type with Paper Element
Balancing System
Single, Counter-Rotating Balance Shaft
16.2 in (412mm)
18.6 in (472mm)
19.4in (493mm)
Dry Weight (Recoil Start)
106.9 Lbs (48.5 kg)
Dry Weight (Electric Start)
117.9 Lbs (53.5 kg)
Noise Output @ Continuous Rating, Mean of Four Directions at 1 Meter
97 dB(A)
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