Yanmar 4JHYE Marine diesel engine 38hp M.L-Rating
Original price was: $12,088.00.$11,483.60Current price is: $11,483.60.
- Description
Description
Yanmar 4JHYE Marine Diesel Engine 38HP M/L Rating
The Yanmar 4JHYE 38HP marine diesel engine combines a compact four-cylinder layout, direct injection and natural aspiration for inboard propulsion. Its 1.644-litre displacement, heat-exchanger cooling and hydraulic marine gear arrangement make it a model to consider when planning a small-vessel repower or replacement installation. yanmar.com
Request a quotation from MSS Motorsports UG for the exact engine configuration your project requires. Compare the engine, transmission, supplied equipment and delivery costs together to establish a clear budget before ordering.
Practical Features for Fishing and Working Boats
Yanmar’s original 4JHYE brochure highlights features relevant to everyday operation:
- Low-profile design: Useful when assessing installations with limited engine-room height.
- Accessible service points: Oil and fuel filters, the dipstick, drain ports and fuel feed pump are grouped on the operating side to simplify routine checks.
- Hydraulic gear engagement: The YX arrangement is designed for smooth changes between forward, neutral and reverse.
- Low-speed manoeuvring: The original gearbox arrangement includes a trolling function for reducing propeller speed independently of engine speed. Confirm its presence and operating instructions on the selected package. frenchmarine.com
For fishing boats and displacement workboats, assess these features alongside the vessel’s loaded displacement, required speed and working schedule.
Understand the 38HP L Rating
The 38HP listing corresponds to Yanmar’s published L-rated designation at 3,600rpm. The same model is also listed with an M-rated output of 25.7kW / 35MHP at 3,400rpm. yanmar.com
Select the rating according to the vessel’s workload and applicable operating limits. An M/L designation should not be treated as permission to run indefinitely at full rated power. www.yanmar.fi
Technical Specifications
| Specification | Manufacturer reference |
|---|---|
| Engine model | Yanmar 4JHYE |
| Engine type | Four-stroke, vertical diesel |
| Cylinders | Four in line |
| Displacement | 1.644 litres |
| Bore × stroke | 78 × 86mm |
| Published L rating | 29.4kW (38MHP) at 3,600rpm* |
| Published M rating | 25.7kW (35MHP) at 3,400rpm |
| Combustion | Direct injection |
| Aspiration | Naturally aspirated |
| Cooling | Heat exchanger |
| Starting system | 12V electric starter, 1.8kW |
| Reference transmission | Yanmar YX-10 hydraulic marine gearbox |
| Reference dry mass | 243kg with YX-10 gearbox |
| Reference dimensions | 916 × 545 × 659mm with YX-10 gearbox |
Yanmar publishes the L rating as 29.4kW (38MHP), although those figures are not equivalent conversions. Confirm the supplied engine’s certified power against its data plate and documentation. MHP denotes metric horsepower. yanmar.com
See the official Yanmar commercial JH Series specifications for the manufacturer’s reference data. Package weight and dimensions must be checked against the configuration offered.
Gearbox Matching and Repower Planning
For a Yanmar 4JHYE 38HP engine and gearbox package, confirm the transmission model, reduction ratio and coupling before ordering. Reusing an existing gearbox requires your installer to assess compatibility, torque capacity, shaft alignment and propeller loading.
Check mounting positions, exhaust routing, cooling connections, electrical requirements and maintenance access as part of the installation plan. Include space for hoses and service work when measuring the engine compartment.
You can also compare the Yanmar 4JHYE 35HP M-rated marine engine when reviewing the operating requirements for your vessel.
Get a Clearly Specified Engine Quotation
When comparing a Yanmar 4JHYE 38HP for sale, request an itemised offer covering:
- Engine condition, serial number and documented operating hours where available.
- Gearbox model, ratio and whether it is included.
- Control panel, wiring harness, controls, mounts and coupling.
- Available service records, inspection findings and testing evidence.
- Written warranty terms, packing, transport costs and estimated dispatch timing.
For reconditioned equipment, establish which components were repaired or replaced and what testing was completed. Confirm current availability and all included accessories in the quotation.
Frequently Asked Questions
Is the Yanmar 4JHYE 38HP turbocharged?
No. Yanmar specifies natural aspiration for this model.
Does the engine include a gearbox and controls?
The supplied equipment depends on the quotation. Confirm the gearbox, panel, harness, controls and installation accessories individually.
Will it replace my current marine engine?
Suitability depends on the vessel’s power requirement, duty cycle and installation. Have your installer review the proposed package before ordering.
Does it come with a manufacturer warranty?
Warranty eligibility depends on the specific engine and supply arrangement. Request written terms identifying the provider, coverage, exclusions and claim procedure.
Request Your Yanmar 4JHYE 38HP Quote
Contact MSS Motorsports UG for a Yanmar 4JHYE quotation with your vessel details, current engine, gearbox model and ratio, intended duty, expected annual hours and purchase timing. Include your billing and delivery addresses to request equipment pricing and transport costs.