Main Engine 4-Stroke · Main Engines (4-Stroke)
In marine auxiliary applications, the HiMSEN 7H25/33 powers ships during slow-speed cruising and standby operations. With a rated output of up to 1,995 kW at 720 RPM and a displacement of 16.2 dm³ per cylinder, this engine ensures reliable performance for vessels navigating various conditions. The medium-speed common rail technology and ability to run on Heavy Fuel Oil (HFO), Marine Gas Oil (MGO), or Low-Sulphur Fuel (LSFO) make it versatile in different marine environments. Regular inspections focus on fuel injection pump sticking due to sludge buildup, carbon deposits in the combustion chamber, piston ring wear during overhauls, and turbocharger pressure ratio performance degradation. Maintaining optimal fuel viscosity is crucial for preventing wear and ensuring smooth operation.
Every value below comes from the manufacturer datasheet or class-society record on file for this model.
Free of charge — send us your request for HiMSEN equipment. Our team checks it and replies by e-mail.
Other models of the same equipment type, HiMSEN first.
Tell us what you need for this HiMSEN 7H25/33 — a part, a service call, a second opinion. Are you HiMSEN? Claim this brand page.
Service engineer? Write the day report for this 7H25/33 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.