Details

The Yanmar 4JH80 is an 80hp (58.8kW) 4-cylinder, turbocharged, intercooled, common-rail diesel engine ideal for sailing, offering excellent fuel efficiency and low emissions, with key specs including 2L displacement, 3200 RPM rating, a 12V-125A alternator, and ~229kg dry weight, pairing with gearboxes like the KM4A2 or ZF25A, and meeting stringent emission standards like EPA Tier 3 and RCD 2. 

Key Specifications

Power: 80 hp / 58.8 kW
Rated Speed: 3200 rpm
Cylinders: 4
Displacement: 2.0L (2190 cc)
Bore x Stroke: 84 mm x 90 mm
Combustion: Bosch Common Rail Direct Injection (CRDI)
Aspiration: Turbocharged & Intercooled
Alternator: 12V - 125A
Dry Weight (Engine Only): ~229 kg / 505 lbs
Dimensions (L x W x H): Approx. 909 x 613 x 675 mm (may vary with gear)
Cooling: Freshwater with heat exchanger 

Gearbox & Controls 

Gearbox Options: KM35A, KMH4A, KM4A2, ZF25A (mechanical or hydraulic)
Reduction Ratios:  (2.14:1, 2.61:1 for KM35A)
Controls: Mechanical standard, VC10 system or Joystick (SPP) 

Features & Compliance

Fuel: HVO approved
Emissions: EPA Tier 3, EU RCD 2, BSO II compliant
Technology: Common Rail for better efficiency, lower noise/vibration 

Package Includes

Engine & chosen gearbox
Exhaust mixing elbow
Seawater pump
Control panel (C35) & harness
Fuel filter/separator, expansion tank
NMEA2000 monitoring