Mitsubishi engine models covered
Spare parts supply across the Mitsubishi marine diesel programme — from large-bore UEC slow-speed 2-stroke main engines to the S-series medium-speed auxiliary units used in generator and propulsion applications.
UEC33LSE
Bore 330 mm slow-speed 2-stroke main engine. Compact long-stroke variant used on smaller bulk carriers and coastal cargo vessels. Cylinder liners, pistons, exhaust valves, fuel injection pumps.
UEC37LA
Bore 370 mm slow-speed 2-stroke. Medium-output main engine for handysize and supramax bulk carriers. Piston rings, cylinder heads, turbocharger nozzle rings, stuffing box seals, crosshead bearings.
UEC45LA
Bore 450 mm slow-speed 2-stroke main engine. Common on panamax-class bulk carriers and tankers. Full overhaul component range — liners, piston crowns, exhaust valves, fuel injection equipment, camshaft drives.
UEC50LSE
Bore 500 mm long-stroke 2-stroke. Higher-output main engine variant. Cylinder liner kits, piston assemblies, exhaust valve spindles and seats, turbocharger cartridges, connecting rod bearings.
UEC52LA
Bore 520 mm slow-speed 2-stroke main engine for larger bulk carriers and general cargo vessels. Main bearings, crankpin shells, cylinder heads, fuel injection pumps and plungers, governor components.
UEC60LS
Bore 600 mm large-bore slow-speed 2-stroke. Installed on larger bulk carrier and tanker tonnage. Pistons, liners, exhaust valves, turbocharger interface parts, stuffing box seals, overhaul gasket kits.
S6U-MPTK
Medium-speed 6-cylinder in-line 4-stroke auxiliary diesel. Widely used as generator prime mover. Cylinder heads, piston kits, connecting rod bearings, injection nozzles, turbocharger parts, cooling system spares.
S6R-MPTK
Higher-output S-series medium-speed 4-stroke auxiliary diesel. Common generator unit on bulk carriers and tankers. Cylinder liner kits, valve seat inserts, fuel injection pumps, governor parts, gasket sets.
Mitsubishi marine spare parts supply scope
Planned overhaul components, running spares, and time-critical spare parts — structured by system and component group for Mitsubishi UEC 2-stroke main engines and S-series 4-stroke auxiliaries.
- Cylinder liners & piston rings
- Piston crowns & skirts
- Cylinder heads & head gaskets
- Exhaust valves, seats & spindles
- Fuel injection pumps & plungers
- Fuel injector nozzles & holders
- Turbocharger cartridges & nozzle rings
- Main bearings & crankpin shells
- Crosshead bearings & pins
- Camshaft bearings & drive components
- Stuffing box seals & piston rod packings
- Connecting rod bearings & bolts
- Governor & speed control parts
- Overhaul gasket kits & seal sets
Route comparison for Mitsubishi engine parts.
OEM-route and verified alternative routes are reviewed side by side so buyers can choose the route that fits approval needs, documentation, lead time and budget logic.
Cost-Aware Supply Options
Verified alternative routes for Mitsubishi UEC and S-series engines can support budget control where approval requirements permit. OEM-route and verified alternative tracks can be reviewed from RFQ evidence.
OEM or Alternative — Your Choice
For class-surveyed overhauls or warranty-sensitive repairs, OEM-route review can be requested. For running spares and planned maintenance intervals, verified alternative routes can also be reviewed.
Lead Time Confirmed at RFQ Stage
Lead time, availability and freight options are confirmed at RFQ stage based on part specification, approval requirements, vessel ETA and destination port.
Technical Part Identification
Missing part numbers or incomplete spares lists are not a barrier. We identify correct Mitsubishi components from the engine type designation, bore and stroke specification, build year, and component description. Nameplate photographs accepted as reference.
Port-Aware Delivery Planning
Supply route, handover option and freight timing are reviewed against confirmed RFQ details, vessel ETA, port context, documentation needs and part availability before quotation. No fixed delivery commitment is made before availability and route are confirmed.
Time-Critical Priority Review
Main engine failures on vessels with Mitsubishi UEC slow-speed engines receive priority RFQ review. Time-critical RFQs are checked against supplier availability, freight options, vessel timing and port timing.
Mitsubishi parts — common questions
Can Vessel Core review OEM-route and verified alternative routes for Mitsubishi UEC engines?
Yes. We review OEM-route and verified alternative routes for Mitsubishi UEC series 2-stroke slow-speed engines and S-series medium-speed auxiliary requests. Alternative routes are selected case by case where documentation, quality and approval status permit.
What Mitsubishi engine models do you cover?
We cover the Mitsubishi UEC series 2-stroke slow-speed main engines including UEC33LSE, UEC37LA, UEC45LA, UEC50LSE, UEC52LA, and UEC60LS variants, as well as the S-series medium-speed auxiliaries including S6U-MPTK and S6R-MPTK. Parts are available for current production and legacy engine configurations across the Mitsubishi marine diesel programme.
How quickly can Mitsubishi spare parts be delivered?
Lead time and freight options are confirmed at RFQ stage based on part availability, vessel ETA, destination port and urgency level.
Can Vessel Core supply Mitsubishi parts if I only have the engine type designation?
Yes. If exact part numbers are not available, our technical supply team can identify correct Mitsubishi components from the engine type designation, bore and stroke specification, build year, and component description. Photographs of the installed part or engine nameplate are also accepted as reference. No formal parts list is required to submit an RFQ.
Submit your RFQ now.
Send your Mitsubishi spare parts request — vessel name, engine model (e.g. Mitsubishi UEC45LA), part numbers or descriptions, and port/ETA. Vessel Core reviews the supply route and prepares a structured supply quotation.