Cummins engine models covered
Spare parts supply across the Cummins commercial marine engine programme — from the compact QSB6.7 auxiliary through to the high-output KTA50 and QSK60 powerplants used on large offshore support and anchor handling vessels.
KTA19
K-series 19-litre turbocharged aftercooled. Widely used on OSVs and crew boats. Pistons, liners, cylinder heads, injectors, turbocharger components, gasket sets.
KTA38
38-litre V12 high-output marine diesel. Anchor handling tugs and platform supply vessels. Crankshaft bearings, connecting rods, exhaust valves, fuel pump assemblies.
KTA50
50-litre V16 top-output K-series engine. Heavy anchor handlers and large OSVs. Cylinder liners, piston ring sets, turbocharger cartridges, intercooler cores, overhaul kits.
QSK19
Quantum series 19-litre with advanced fuel management. Cylinder heads, injector cups, valve seat inserts, camshaft followers, lube oil system components.
QSK38
QSK 38-litre V12 Quantum high-power engine. Piston assemblies, exhaust valve rotators, fuel injectors, turbocharger nozzle rings, cooling system spares.
QSK60
60-litre top-tier Quantum engine for high-power commercial vessels. Main bearings, piston crowns, cylinder liner sets, complete head assemblies, full overhaul kits.
QSM11
Mid-range 11-litre marine diesel. Popular on ferries, patrol vessels, and workboats. Injectors, cylinder head gaskets, water pump assemblies, intercooler elements, seal kits.
QSB6.7
Compact 6.7-litre marine propulsion and auxiliary engine. Widely used on smaller commercial craft. Piston rings, injector nozzles, turbocharger, gasket sets, cooling system parts.
Cummins parts we source
Planned overhaul components, running spares, and emergency breakdown parts — structured by system and component group for KTA, QSK, QSM, and QSB Cummins commercial marine engines.
- Cylinder heads & head gaskets
- Cylinder liners & liner seals
- Piston assemblies & piston rings
- Exhaust valves & valve rotators
- Fuel injectors & injector cups
- Fuel pump assemblies & plungers
- Turbocharger cartridges & nozzle rings
- Main bearings & crankpin shells
- Connecting rod bearings & bolts
- Camshaft bearings & followers
- Water pump assemblies & impellers
- Intercooler cores & heat exchanger elements
- Lube oil system components
- Overhaul gasket kits & seal sets
Competitive Cummins sourcing — OEM and verified alternative.
Cummins has one of the largest authorised service networks in the world, while commercial vessel operators may also need alternative sourcing routes for lead-time and budget review. Vessel Core provides direct sourcing support for OEM genuine and alternative Cummins components, with structured RFQ handling and port-aware delivery coordination.
OEM or Alternative — Your Choice
For class and flag state compliance on surveyed vessels, OEM-route Cummins parts can be reviewed with documentation requirements confirmed at RFQ stage. For planned maintenance and running spares programmes, verified alternative components can be reviewed where buyer approval and technical specification allow it.
Full KTA, QSK & QSM Coverage
From the QSB6.7 compact auxiliary to the KTA50 and QSK60 high-output powerplants, we cover the full Cummins commercial marine engine range. Generator set and propulsion configurations are both in scope across all series.
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
No Cummins part number available? We identify correct components from engine CPL code, serial number, model designation, and component photographs or descriptions. Incomplete RFQs are not turned away — we source from whatever technical data you can provide.
OSV & Offshore Fleet Ready
Cummins KTA and QSK engines power a large share of the global offshore support vessel fleet. We understand the operational tempo of OSVs, PSVs, and anchor handling tugs — and coordinate delivery around vessel schedules, not standard business hours.
Urgent Breakdown Priority
Propulsion failures on Cummins-powered vessels receive priority RFQ handling. Urgent KTA, QSK, and QSM RFQs trigger priority sourcing review and freight coordination based on vessel urgency, part availability and port timing.
Cummins parts — common questions
Do you supply both OEM and alternative parts for Cummins marine engines?
Yes. We source genuine Cummins OEM parts and verified quality alternative components for KTA, QSK, QSM, and QSB series marine engines. Alternative parts are selected where quality and specification permit, providing a cost-competitive option for planned maintenance programmes without compromising engine reliability or class requirements.
What Cummins engine models do you cover?
We cover the main Cummins commercial marine engine series: KTA19, KTA38, KTA50 (K-series turbocharged high-output), QSK19, QSK38, QSK60 (QSK high-power Quantum series), QSM11 (mid-range marine), and QSB6.7 (compact marine propulsion and auxiliary). If your model is not listed, provide the nameplate designation and we will confirm availability.
How quickly can Cummins marine 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 you supply Cummins parts for offshore support vessels and workboats?
Yes. Cummins KTA and QSK series engines are extensively used on offshore supply vessels (OSVs), anchor handling tugs, platform supply vessels, crew boats, and workboats worldwide. We supply spare parts for all commercial vessel types using Cummins marine propulsion and generator set engines, with delivery coordinated to any port of call or offshore supply base.
Submit your RFQ now.
Send your Cummins spare parts request — vessel name, engine model (e.g. Cummins KTA38), CPL code or part numbers, and port/ETA. We handle the sourcing, you get a structured quote.