Genuine and OEM-quality spare parts for the Cummins KTA50-M (K50 series) marine diesel — a 50-litre V16 for high-output propulsion and auxiliary duty. Injectors, liners, pistons, twin turbochargers, heat exchangers and overhaul kits — sourced by part number from Turkey and delivered with export documents worldwide. Reply within 2–4 business hours.
The Cummins KTA50-M (K50 marine) is a 50 L V16 diesel with twin marine turbochargers, used for high-output propulsion and auxiliary / genset duty on larger vessels. Heavy marine load consumes fuel-system, air-boost, cooling and sealing parts.
IWH sources KTA50-M parts by part number — engine core, PT injectors and fuel system, twin turbochargers, raw-water cooling, gaskets and full overhaul kits — and ships from Istanbul with clean export documents. Genuine, OEM-equivalent and verified aftermarket (incl. Fleetguard), confirmed before you commit.

| Specification | Value |
|---|---|
| Configuration | 4-stroke, turbocharged & aftercooled V16 diesel |
| Displacement | 50.3 litres (3,067 cu in) |
| Cylinders | 16 (V) |
| Bore × stroke | 159 × 159 mm |
| Power output | 1,193–1,641 kW (1,600–2,200 hp), by rating |
| Fuel system | Cummins PT (Pressure-Time), twin turbochargers |
| Applications | High-output propulsion & auxiliary on larger vessels |
Ratings vary by application and emissions tier — send the engine serial number for the exact build and matching parts.
| System | Typical Cummins KTA50-M parts |
|---|---|
| Engine core | Cylinder liners, pistons, rings, connecting rods, main & rod bearings, crankshaft |
| Cylinder head | Heads, valves, guides, seats, springs, rocker components |
| Fuel system | Cummins PT injectors, fuel pumps, governors, rail components, ECM sensors |
| Air & boost | Turbochargers, aftercoolers / intercoolers, air filters, manifolds |
| Cooling & lube | Raw-water & fresh-water pumps, heat exchangers, oil coolers, thermostats, oil pumps |
| Sealing & overhaul | Upper & lower gasket sets, seals, full overhaul / rebuild kits |
| Filtration | Oil, fuel, coolant & air filters |
| Electrical | Sensors, ECU / ECM components, starters, alternators, wiring |
Genuine Cummins part numbers we source for the KTA50 (50 L V16) — cylinder liners, pistons & bearings, cylinder head, fuel system and gaskets. Several are shared across the Cummins K / QSK big-bore family; always confirm against your engine serial. Send a part number or a nameplate photo for a full quote.
| System | Part No. | Component |
|---|---|---|
| Pistons & rings | 3631246 | Piston kit |
| Cylinder liners | 3007525 | Cylinder liner kit |
| Pistons & rings | 4955975 | Piston ring set |
| Bearings | 3018212 | Main bearing set (standard) |
| Bearings | 3047390 | Connecting rod bearing |
| Cylinder head | 3811985 | Cylinder head, with valves |
| Fuel system | 3095773 | Fuel injector |
| Gaskets | 4352581 | Upper engine gasket set |
Representative selection — genuine Cummins references, not the full catalogue. We also supply OEM and quality aftermarket parts across the whole engine. Confirm exact fit by engine serial — send your part list or nameplate photo for availability and pricing.
A part number gets you the fastest answer. No part number? The engine serial number and a nameplate photo let us identify the exact Cummins KTA50-M build.
The Cummins KTA50-M on larger vessels, tugs and ferries — high-output propulsion and marine auxiliary / genset.
We do not supply counterfeit parts. Where exact matches are scarce, we propose verified equivalents and confirm specifications before you commit.
Cummins parts through verified distributor channels where available.
Original-equipment quality at a lower cost, matched to your Cummins KTA50-M.
Quality aftermarket or verified equivalents, confirmed before ordering.
Multiple items grouped into one shipment from our Istanbul base.
Commercial invoice, packing list and available origin / manufacturer documents.
Delivery to CIS, Middle East and worldwide ports — fastest route when down.
KTA50-M, KTA50-M2 and related K50 marine builds — send the exact model and serial.
Yes — the engine serial number lets us identify the exact build and correct parts.
For part-number requests we reply within 2–4 business hours.
Yes — CIS, Middle East and worldwide, with export documents from Istanbul.
Genuine, OEM-equivalent and verified aftermarket — confirmed before ordering.
Engine serial number, part number, quantity and destination — we check availability and prepare an export-ready quote.
Request a quote