Genuine and OEM-quality spare parts for the Cummins QSK19 marine diesel — a 19-litre in-line 6 with common-rail injection for propulsion and auxiliary duty. Injectors, liners, pistons, 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 QSK19 is a 19 L in-line 6 marine diesel with a high-pressure common-rail fuel system, used for commercial propulsion, auxiliary duty and yachts. Continuous marine service wears the fuel system, cooling and sealing parts.
IWH sources QSK19 parts by part number — engine core, common-rail injectors and fuel system, 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 in-line 6 diesel |
| Displacement | 19.0 litres (1,150 cu in) |
| Cylinders | 6 (in-line) |
| Bore × stroke | 159 × 159 mm |
| Power output | 500–800 hp (373–597 kW), by rating |
| Fuel system | High-pressure common rail |
| Applications | Propulsion & auxiliary, yachts |
Ratings vary by application and emissions tier — send the engine serial number for the exact build and matching parts.
| System | Typical Cummins QSK19 parts |
|---|---|
| Engine core | Cylinder liners, pistons, rings, connecting rods, main & rod bearings, crankshaft |
| Cylinder head | Heads, valves, guides, seats, springs, rocker components |
| Fuel system | Common-rail injectors, fuel pumps, 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 |
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 QSK19 build.
The Cummins QSK19 on commercial vessels, yachts and workboats — propulsion and marine auxiliary.
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 QSK19.
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.
QSK19 marine propulsion and auxiliary builds across emissions tiers — 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