JH Series 28.7–92kW (39–125HP) Three and four-cylinder direct injection diesels with heat exchanger cooling. Choices of natural aspiration, turbocharged and turbo/aftercooler models, with straight drive or angle drive transmissions. Smaller horsepower models are also offered with Saildrive units. JH Series 3JH4 (39HP/28.7kW) The Yanmar's 3JH4 is an all-new naturally aspirated engine for sailboats and motor craft - quieter, cleaner and producing more torque - with the largest displacement and smallest dimensions in its class. It's fullfy compliant with EPA Tier 2 emissions regulations and with BSO/SAV Stage 2 requirements.


Specifications

Rated Output
39.6 kW / 53.8 mhp

Rated Speed
3000 rpm

Displacement
2.19 L / 134 cu. in

No. of cylinders
4 cylinders

Cylinder Bore x Stroke
88 mm x 90 mm / 3.46 in x 3.54 in

Combustion system
Direct Injection, Mono Plunger Pump

Aspiration
Natural

Alternator
12V - 125A

Dry weight without gear
201 kg / 443 lbs

Dimensions
871 mm x 560 mm x 623 mm

Controls
Mechanical

Certifications
RCD 1 EPA Tier 2 BSO II EMC

NOTE:

1 kW = 1.3596 mhp = 1.34102 bhp
Fuel condition: density at 15°C = 0.842 g/cm³
Technical data is according to (ISO 8665) / (ISO 3046)
Fuel temperature 40°C at the inlet of the fuel injection pump (ISO 8665)
Length includes KM35A marine gear
(Dimensions may vary with other gears/elbow)

Standard Engine Package

Exhaust mixing elbow [L-type]
Alternator 12V – 125A
B20 panel
Flexible mounts
Expansion tank for fresh water cooling system
Electric stop solenoid
Belt safety cover

Optional Accessories

High-riser mixing elbow [instead of L-elbow]
Secondary alternator 12V – 130A or 24V – 75A including smart regulator
C30 panel
Extension wire harness [4m, 6m, 10m]
Dual harness [for 2nd station]
TFX Sidemount control head
Hot water kit with cocks
Extension saildrive leg [75 mm]
Propeller cone nut kit SD60
Air heater [glow]
On-board spare parts kit