New Yanmar 3JH40 40HP Smallest CR Inboard Diesel Engine

The 3-cylinder 3JH40 has been developed by leading manufacturer YANMAR as the marine industry’s smallest CR inboard diesel engine. With an output of 40 mhp, it will enable a whole new category of smaller leisure boat owners and commercial vessel operators to benefit for the first time from the efficiency and performance advantages associated with the most recent electronically-managed CR fuel-injection technology.

Offering minimal fuel consumption and exceptionally low noise and emission levels, the new YANMAR 3JH40 propulsion engine surpasses EPA Tier 3 and EU RCD Tier 2 emission regulations for virtually smoke and odor-free operation.

The 4-stroke, water-cooled 3JH40 is an ideal solution for new builds and repowering applications, specifically monohull sailing yachts and catamarans up to 45ft, small motor boats or sloops, and light duty commercial craft. Weighing 192 kg and with 1.642 L displacement, the engine can be operated by either standard mechanical cable controls or the YANMAR VC10 electronic control system.

Specifications

Rated Output
29.4 kW / 40 mhp

Rated Speed
3000 rpm

Displacement
1.642 L / 100 cu. in

No. of cylinders
3 cylinders

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

Combustion system
Direct Injection, Bosch Common Rail System

Aspiration
Natural

Alternator
12V – 125A

Dry weight without gear
192 kg / 423 lbs

Dimensions
774 mm x 580 mm x 632 mm

Controls
Mechanical (optional – VC10 system)

Certifications
RCD 2 EPA Tier 3 EPA Tier 3C BSO II EMC SOLAS

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
B25 panel
Flexible mounts
Mechanical throttle sensor
Fuel pre-filter with water separator
Fresh water expansion tank
Belt safety cover

Optional Accessories

High-riser mixing elbow [instead of L-elbow]
Secondary alternator 12V – 125A or 24V – 60A
C35 panel
Extension harness [3m, 5m, 10m]
Second station
TFX Sidemount control head
VC10 Vessel Control System
NMEA2000 Engine monitoring system
Semi 2-pole
SOLAS including Certificate [factory fit only]
Hot water kit with cocks
Extension saildrive leg [75 mm]
Propeller cone nut kit SD60
On-board spare parts kit