Yanmar 4JH4-TE – Inboard Marine Diesel Engine 75 HP
Forced intake boost spools quickly on the Yanmar 4JH4-TE turbo engine, pushing 75 HP through a turbocharged 1.995L 4-cylinder engine to spin KM4A1 or ZF30M mechanical cone clutches with 80 Amps charging at 465 lbs.
- Turbocharger forces dense air at 3200 RPM
- Mechanical cone clutch provides direct propeller lockup
- 80-Amp alternator maintains vessel electrical storage
- Wet-type mixing elbow lowers exhaust gas temperature
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With 75 hp at 3,200 rpm, the Yanmar 4JH4-TE combines a turbocharged 1.995L inline four-cylinder diesel layout with direct injection. The 18.1:1 compression ratio and ISO 8217 DMA fuel requirement define the specified combustion and fuel-system configuration. A mechanical cone-clutch transmission, SAE 4 flywheel housing, and KM4A1, ZF30M, or SD50 drive options establish the documented propulsion interfaces.
The 465-pound dry engine uses a 12V 60 or 80-amp alternator, forced lubrication with 5.0L oil capacity, and a heat-exchanger cooling system holding 6.0L coolant. A wet mixing elbow forms part of the exhaust arrangement. Listed emissions ratings include EPA Tier 2, RCD I, and BSO II, while mechanical or hydraulic steering compatibility is specified.
Why Choose the Yanmar 4JH4-TE Marine Diesel Engine
The 4JH4-TE marine diesel engine combines turbocharged 75 hp output with direct injection in a 1.995L four-cylinder platform. Buyers comparing propulsion systems can assess its mechanical cone-clutch transmission, SAE 4 flywheel housing, 12V 60 or 80-amp alternator options, and KM4A1, ZF30M, or SD50 drive compatibility. The documented 465-pound dry weight and listed emissions ratings support installation planning.
Warranty and Support
This model is eligible for Yanmar’s 3-Year Extended Limited Warranty program for first retail purchasers of qualifying engines bought on or after July 1, 2015, when used only for private and recreational purposes. provides pre-purchase product guidance and order-related customer support. Review the applicable warranty information on before completing your order.
Before Ordering the Yanmar 4JH4-TE Marine Diesel Engine
Before ordering, verify engine-bed dimensions, mount locations, SAE 4 flywheel-housing compatibility, and the selected KM4A1, ZF30M, or SD50 drive arrangement. Confirm your vessel supports ISO 8217 DMA diesel, turbocharger service clearance, cooling-water intake, wet-exhaust routing, 12V charging wiring, mechanical or hydraulic controls, ventilation, and professional propulsion alignment.
Product Specifications
Yanmar 4JH4-TE Full Specs
| Engine type | In-line 4, 4-stroke Diesel |
|---|---|
| Displacement | 1.995L (122 cid) |
| Bore x stroke | 84 x 90 mm |
| Horsepower | 75 hp (55.2 kW) |
| Rated rpm | 3200 rpm |
| Aspiration | Turbocharged |
| Compression ratio | 18.1:1 |
| Fuel system | Direct Injection |
| Recommended fuel | Diesel (ISO 8217 DMA) |
| Ignition/Firing Order | Compression / 1-3-4-2 |
| Alternator | 12V, 60/80 Amp |
| Gear ratio/Drive | KM4A1 / ZF30M / SD50 |
| Transmission | Mechanical Cone Clutch |
| Dry weight | 211 kg (465 lbs) |
| Flywheel housing | SAE 4 |
| Steering | Mechanical / Hydraulic compatible |
| Coolant capacity | 6.0L |
| Exhaust system | Mixing elbow (Wet type) |
| Cooling system | Heat Exchanger |
| Lubrication | Forced lubrication |
| Oil capacity | 5.0L |
| Emissions rating | EPA Tier 2, RCD I, BSO II |
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