Main Engine 4-Stroke · Main Engines (4-Stroke)
This engine is commonly found in shipboard propulsion systems, specifically for variable speed applications paired with fixed pitch propellers. The Yanmar KYDXN1.64E3N engine operates with a naturally aspirated, direct injection system and is rated at 33 kW of power. It features a 4-stroke compression ignition cycle and falls under IMO Engine Category 1, making it suitable for marine environments. The engine's displacement per cylinder is 0.5 liters, and it has four cylinders in total. Common issues that may arise include fuel-injection deterioration, lubricating-oil contamination, cooling-system fouling, charge-air restriction, and valve-train wear. Onboard spare parts typically include fuel-system service items, lubricating-oil and fuel filters, cooling-system seals, valve-train consumables, and injector-related service parts. Critical spare parts should be selected based on the exact engine serial number, installed emissions package, and vessel redundancy. Regular service involves reviewing operating trends for lubricating-oil pressure, coolant temperature, exhaust temperatures, and other critical parameters. Inspections should cover filters, coolers, fuel equipment, valve gear, turbocharging equipment, mounts, flexible connections, and safety shutdown devices.
Do you have the manufacturer datasheet for this model? Send it with the enquiry form — we check it and name the source.
What our service work and the manufacturer documentation say about keeping this model running.
Review operating trends for lubricating-oil pressure, coolant temperature, exhaust temperatures, load balance, crankcase condition and abnormal vibration or noise. Inspect filters, coolers, fuel equipment, valve gear, turbocharging equipment, mounts, flexible connections and safety shutdown devices in accordance with the installed configuration. Check for fuel, oil, coolant and exhaust leakage and verify that protective alarms and shutdowns are functional. A surveyor will normally look for evidence of disciplined maintenance, clean machinery spaces, leak control, intact guards and reliable safety functions. Use the engine serial number and manufacturer documentation for all exact wear limits, adjustment values and overhaul criteria.
Useful onboard spares typically include fuel-system service items, lubricating-oil and fuel filters, cooling-system seals, belts where fitted, valve-train consumables, injector-related service parts, sensors and common gaskets or O-rings. Critical spares should be selected against the exact engine serial number, installed emissions package and vessel redundancy; refer to the manufacturer parts documentation before ordering.
Free of charge — send us your request for Yanmar Power Technology Co., Ltd. equipment. Our team checks it and replies by e-mail.
Other models of the same equipment type, Yanmar Power Technology Co., Ltd. first.
Tell us what you need for this Yanmar Power Technology Co., Ltd. KYDXN1.64E3N — a part, a service call, a second opinion. Are you Yanmar Power Technology Co., Ltd.? Claim this brand page.
Service engineer? Write the day report for this KYDXN1.64E3N in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →
Yes. Specifications, documents and service notes for this model are readable without an account. An account adds saved searches and requests, nothing is taken away.
Yes. Tell us the manufacturer, the model and what you need — a person reads every request and replies by e-mail.
Send us the nameplate or the correct value. We check it against the manufacturer datasheet or class-society record and update the page.