Yanmar Model 4JH57 Marine Diesel Engine

Yanmar 4JH57 engine is compatible with several transmission options for marine use. The KM35P and KM4A-2 are robust mechanical marine gearboxes, featuring hydraulic clutch controls and designed for inboard applications.Ideal for installation in boats with limited engine compartment space.

Specifications:

Model: 4JH57
Engine Type: 4-cylinder, 4-stroke, vertical water-cooled diesel engine
Displacement: 2.19 litres (2190 cc)
Bore x Stroke: 84 mm x 90 mm
Power Output: 57hp (41.9 kW) at 3000 rpm
Compression Ratio: 18.9:1
Fuel System: Common rail direct injection (CR)
Cooling System: Freshwater cooling with heat exchanger
Alternator Output: 12V – 125A
Lubrication System: Forced lubrication by gear pump
Oil Capacity: 7.4 litres
Starting System: Electric start
Direction of Rotation: Counterclockwise (viewed from flywheel)
Weight: 192 kg (without gearbox)
Gearbox Options: KM35A, KM4A2 (mechanical or hydraulic)
Reduction Ratios: 2.14:1, 2.61:1 (KM35A) or 2.20:1, 3.12:1 (KM4A2)
Exhaust System: Water-cooled, with wet exhaust manifold
Fuel Consumption: Approx. 7.5 litres/hour at cruising speed
Emission Compliance: EPA Tier 3, EU RCD Stage II