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JH3E Series
55kW(75hp) – 91.9kW(125hp)
Compact Mid-Range Marine Power Plants
The 4JH3 range consists of three 4 cylinder turbo and turbo intercooled engines, the 4JH3-TE (turbo), the 4JH3-HTE (intercooler-turbo) and the 4JH3-DTE (hi-power intercooler turbo), to create a family of lightweight, user-friendly, clean, thrifty and reliable marine diesels.
Lightweight: Compact design iron block and head feature close space cylinders to save space and weight. Extensive use of aluminium alloys in oil pan, covers, and in many parts make for good weight savings.
User friendly: Sophisticated engine mounts, a range of velvet smooth transmissions, micron-precision fuel system components, close attention to bearing tolerances and accurate balance of moving parts make for low-noise, low vibration, low emission, low downtime and easy to live with engines.
Clean: Inlet swirl design improves fuel-air mix, extra high pressure fuel injection system with micron-precision injectors and close attention to coolant flow minimizes hot and cool spots. These are just some of the ways Yanmar improves combustion efficiency.
Thrifty: Diesels are synonymous with fuel economy. But being a Yanmar also means that long years of experience in building some of the worlds most efficient diesel engines (since 1912). The extensive input from our large and ultra-modern research facilities have been incorporated into every new Yanmar engine.
Reliable: Long trouble-free engine life is a common reason for choosing Yanmar. Worldwide parts backup and quick response times make for minimum downtime. These engines are again and again the favoured choice of bluewater yachtsman and boat owners the world over.
Click the links at the bottom of the tables for dimensions & performance curves
| Model | 4JH3E | 4JH3-TE | ||||||||||
| class | 4JH3E | 4JH3BE | 4JH3-TE | 4JH3-TBE | 4JH3-THE | |||||||
| Number of cylinders | 4 | |||||||||||
| Bore x stroke mm | 84 x 90 | |||||||||||
| Displacement lit. | 1.995 | |||||||||||
| Cont. rating output at cranckshaft kW(hp)/rpm |
36.8(50.0)/3650 | 50.7(69.0)/3700 | ||||||||||
| Fuel stop power at crankshaft kW(hp)/rpm | 41.2(56.0)/3800 | 55.2(75.0)/3800 | ||||||||||
| Cooling system | ||||||||||||
| Gear Model | KM3P (Parallel drive) |
KM3A (Angle driver 7degree) |
KBW21 (Parallel drive) |
KM4A (Angle driver 7degree) |
KMH4A (Angle driver 8degree) |
|||||||
| Marine gear | Hydraulic | |||||||||||
| Reduction ratio (Ahead/Asterm) |
2.36 /3.16 |
2.61 /3.16 |
2.33 /3.04 |
2.64 /3.04 |
2.17 | 2.62 | 1.47 | 2.14 | 2.63 | 3.30 | 2.04 | 2.45 |
| Dry weight kg(lbs.) | 223(492) | 249(549) | 247(545) | 250(551) | ||||||||
| Dimensions & Performance | click here | |||||||||||
|
Model
|
4JH3-HTE
|
4JH3-DTE
|
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|
class
|
4JH3-HTE
|
4JH3-HTBE
|
4JH3-HTHE
|
4JH3-DTHE
|
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Number of cylinders
|
4
|
|||||||||
|
Bore x stroke mm
|
84 x 90
|
|||||||||
|
Displacement lit.
|
1.995
|
|||||||||
|
Cont. rating output at cranckshaft
kW(hp)/rpm |
67.7(92.0)/3700
|
85.3(116.0)/3700
|
||||||||
|
Fuel stop power at crankshaft kW(hp)/rpm
|
73.6(100.0)/3800
|
91.9(125.0)/3800
|
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|
Cooling system
|
Heat exchanger
|
|||||||||
|
Gear Model
|
KBW21
(Parallel drive) |
KM4A
(Angle driver 7degree) |
KMH4A
(Angle driver 8degree) |
|||||||
|
Marine gear
|
Mechanical
|
Hydraulic
|
||||||||
|
Reduction ratio
(Ahead/Asterm) |
2.17
|
2.62
|
1.47
|
2.14
|
2.63
|
3.30
|
2.04
|
2.45
|
2.04
|
2.45
|
|
Dry weight kg(lbs.)
|
258(569)
|
256(564)
|
259(571)
|
260(573)
|
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|
Dimensions & Performance
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