Original engine and import-export guides
Engine Import and Maintenance Knowledge Center
This knowledge center is built for vessel owners, workshops, factories, purchasing teams, and import-export staff who need practical information before buying, inspecting, shipping, or maintaining marine diesel engines and industrial equipment.
Product listings alone rarely answer the questions that matter in a real engine project. A buyer needs to know whether the power rating matches the vessel, whether the gearbox ratio is suitable, whether used machinery can be imported, which documents reduce customs risk, and how to check an engine before money is committed. The guides below are written from the practical workflow we use when discussing engines, spare parts, customs clearance, and logistics with customers.
How to choose a marine diesel engine
Match horsepower, RPM, duty cycle, gearbox, cooling, space, and documentation to the vessel instead of buying by model name alone.
Mitsubishi vs Yanmar marine engines
Compare common buying factors: parts support, operating profile, used-engine supply, inspection points, and suitable applications.
Used marine engine inspection checklist
A step-by-step checklist for documents, visual checks, compression, oil condition, cooling system, test run, and shipping readiness.
Marine engine maintenance schedule
Daily, weekly, monthly, and operating-hour service tasks that reduce downtime and protect a diesel engine after installation.
Importing used machinery into Vietnam
Understand HS codes, documents, technical inspection, customs declaration, taxes, and delivery planning for used equipment.
Engine specifications explained
Plain-English explanations of horsepower, kW, RPM, torque, SFOC, displacement, serial plates, dimensions, and ratings.
How to use these guides
Start with the selection guide if you are comparing engines. Use the inspection checklist before paying a deposit on a used engine. Read the import procedure guide before arranging shipment into Vietnam. If you already operate an engine, the maintenance schedule helps your team create a service log that is useful for resale, warranty discussion, and troubleshooting.
Ask for project-specific advice
Every engine project has details that cannot be solved by a generic article: vessel displacement, propeller size, available engine room space, classification requirements, destination import rules, lifting access, and budget. If you need help reviewing a specific engine or shipment, contact sales@tuonghoa-imex.com with the model, photos, serial number, target use, and destination.