Yanmar 4JH4-TE – Inboard Marine Diesel Engine 75 HP

Description

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.

Key Specifications of the Yanmar 4JH4-TE Marine Diesel Engine

• The 1.995L inline four-cylinder engine produces 75 hp at 3,200 rpm through a turbocharged direct-injection diesel configuration.
• Direct injection and an 18.1:1 compression ratio define the specified fuel-system architecture using ISO 8217 DMA diesel.
• KM4A1, ZF30M, and SD50 drive options require drivetrain compatibility review during propulsion replacement or vessel installation planning.
• A mechanical cone-clutch transmission pairs with the SAE 4 flywheel housing for the documented marine propulsion connection arrangement.
• The 12V 60 or 80-amp alternator provides stated charging options for the selected engine electrical-system configuration.
• Heat-exchanger cooling holds 6.0L coolant, while the wet mixing elbow defines the specified exhaust-water arrangement.
• Forced lubrication uses 5.0L oil capacity, supporting planned fluid service access within the engine-room installation layout.

Engine Configuration and Service Access

This Yanmar marine diesel engine uses 84 by 90 mm bore and stroke dimensions in a four-stroke inline four-cylinder layout. Its turbocharged induction, direct injection, 1-3-4-2 firing order, and 211 kg dry weight should be evaluated alongside available engine-room space and service access.

Cooling-water plumbing, wet-exhaust routing, turbocharger access, fuel-system service, oil changes, and alternator connections require planning around the installed engine. Mechanical or hydraulic steering compatibility should also be matched to the vessel control arrangement.

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.

Installation and Compatibility Considerations

Confirm that the vessel supports the 465-pound dry weight, SAE 4 flywheel housing, mechanical cone-clutch transmission, and one of the listed KM4A1, ZF30M, or SD50 drive configurations. Plan engine mounts, shaft or saildrive alignment, fuel lines, turbocharger clearance, cooling-water intake, wet-exhaust routing, controls, and charging wiring before installation.

Use diesel fuel meeting ISO 8217 DMA requirements. Confirm provisions for 6.0L coolant capacity, 5.0L oil capacity, mechanical or hydraulic steering compatibility, ventilation, and access to fuel, cooling, and exhaust service points according to the applicable Yanmar documentation.

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. Mulmarine.com provides pre-purchase product guidance and order-related customer support. Review the applicable warranty information on Mulmarine.com 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.