Industrial Engines | L-Series (Air Cooled) | L-V Series

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.

Engine Type Air Cooled, 4 cycle, Vertical Cylinder
Fuel Diesel
Number of Cylinders 1
Bore x Stroke 78 mm x 67 mm
Total Displacement 320 cc
Combustion Type Direct Injection
Aspiration Natural Aspiration
Valves per Cylinder 2
Rated Speed 3600 rpm
Net Intermittent 6.4hp [4.8kW]/3600 rpm
Net Continuous 5.8hp [4.3kW]/3600 rpm
Direction of Rotation Counter Clockwise, Viewed form PTO side
Crankshaft Type Straight Keyed, Tapered or Threaded
Starting System Recoil or Recoil/12V Electruc
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 Heather (for Electric Start Models)
Fuel Tank Capacity 2.7 liters
Brake Specific Fuel Consumption at Rated Output 270 g/kW-hr
Lubrication System Pressure Lubrication with Trochoid Pump
Oil Capacity 1.10 liters [0.40 effective]
Exhaust System Expansion Silencer with Cover
Air Cleaner Dry Type with Paper Element
Balancing System Single, Counter-Rotating, Balancer Shaft
Length 14.9 in [378.2 mm]
Width 16.16 in [422 mm]
Height 17.8 in [453 mm]
Dry Weight (Recoil Start) 78.3 lbs [35.5 kg]
Dry Weight (Electric Start) 88.2 lbs [40.0 kg]
Noise Output at Continuous Output Rating, Mean of Four Direction at 1 Meter 95.5 dB(A)


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.