Main Engine 4-Stroke · Main Engines (4-Stroke)
This marine engine operates on a 4-stroke compression ignition cycle with a naturally aspirated system and indirect injection, designed for variable speed propulsion with a fixed pitch propeller. The NANNI INDUSTRIES SAS KNANN01.1051 model, produced in 2019, delivers 21 kW of power and falls under IMO Category 1. It has a displacement of 0.3 liters per cylinder and features a mechanical pump-line-nozzle fuel system. Common issues include fuel-injection deterioration, lubricating oil contamination, cooling system fouling, charge-air restriction, and valve-train wear. Onboard spares should include fuel system parts, oil and fuel filters, cooling system seals, valve train consumables, and other critical components specified by the engine serial number and installed configuration. Regular maintenance involves reviewing operating trends for oil pressure, coolant temperature, and exhaust temperatures, inspecting filters, coolers, fuel equipment, and ensuring protective alarms and shutdowns are functional.
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 NANNI INDUSTRIES SAS equipment. Our team checks it and replies by e-mail.
Other models of the same equipment type, NANNI INDUSTRIES SAS first.
Tell us what you need for this NANNI INDUSTRIES SAS KNANN01.1051 — a part, a service call, a second opinion. Are you NANNI INDUSTRIES SAS? Claim this brand page.
Service engineer? Write the day report for this KNANN01.1051 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.