Caterpillar 3406 Marine Engine Spare Parts Supplier
Genuine and OEM-quality spare parts for the Caterpillar 3406 marine diesel — a 14.6-litre in-line 6 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.
Caterpillar 3406 parts at IWH
The Cat 3406 (3406B / C / E) is a 14.6 L in-line 6 marine diesel — a long-serving workhorse for propulsion and auxiliary duty on commercial vessels and workboats.
IWH sources 3406 parts by part number — engine core, MEUI / mechanical fuel system, turbochargers, sea-water cooling, gaskets and full overhaul kits — and ships from Istanbul with clean export documents. Genuine, OEM-equivalent and verified aftermarket, confirmed before you commit.
Caterpillar 3406 — key specifications
| Specification | Value |
|---|---|
| Configuration | 4-stroke, turbocharged-aftercooled in-line 6 diesel |
| Displacement | 14.6 litres (893 cu in) |
| Cylinders | 6 (in-line) |
| Bore × stroke | 137 × 165 mm |
| Power output | 325–800 hp (242–597 kW), by variant (3406C / 3406E) |
| Fuel system | MEUI / mechanical injection (by build) |
| Applications | Marine propulsion & auxiliary |
Ratings vary by application and emissions tier — send the engine serial number for the exact build and matching parts.
Caterpillar 3406 parts we supply
| System | Typical Caterpillar 3406 parts |
|---|---|
| Engine core | Cylinder liners, pistons, rings, connecting rods, main & rod bearings, crankshaft |
| Cylinder head | Heads, valves, guides, seats, springs, rocker components |
| Fuel system | MEUI / mechanical injectors, fuel pumps, governors, 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 |
Common Caterpillar 3406 part numbers
Genuine Caterpillar part numbers we source for the 3406 (14.6 L inline-6) — pistons, liners, bearings, valvetrain and gasket sets. The 3406B / 3406C (mechanical) and 3406E (electronic) use some different parts, so confirm your variant and serial number. Send a part number or a nameplate photo for a full quote.
| System | Part No. | Component |
|---|---|---|
| Pistons & liners | 2212305 | Piston assembly |
| Pistons & liners | 0R8915 | Piston kit |
| Pistons & liners | 1807352 | Piston |
| Pistons & liners | 1W6280 | Wet cylinder liner with seal rings |
| Pistons & liners | 1W8922 | Piston ring set (one cylinder) |
| Pistons & liners | 1608133 | Piston pin bushing |
| Bearings | 1N3542 | Main bearing set |
| Bearings | 9Y7735 | Connecting rod bearing set |
| Bearings | 1345251 | Camshaft bearing set |
| Bearings | 1W5252 | Crankshaft thrust washer set |
| Valvetrain | 1W3859 | Intake valve |
| Valvetrain | 1W3860 | Exhaust valve |
| Valvetrain | 1185569 | Valve guide |
| Valvetrain | 1M8346 | Valve seat insert |
| Gaskets | 1127995 | Cylinder head gasket set |
| Gaskets | 1497378 | Valve cover gasket |
| Gaskets | 4N1151 | Oil pan gasket set |
Representative selection — genuine Caterpillar references, not the full catalogue. We also supply OEM and quality aftermarket parts across the whole 3406. Confirm exact fit by engine serial — send your part list or nameplate photo for availability and pricing.
What we need to quote accurately
A part number gets you the fastest answer. No part number? The engine serial number and a nameplate photo let us identify the exact Caterpillar 3406 build.
Where the Caterpillar 3406 runs
The Cat 3406 on commercial vessels and workboats — propulsion and marine auxiliary.
Genuine, OEM or aftermarket
We do not supply counterfeit parts. Where exact matches are scarce, we propose verified equivalents and confirm specifications before you commit.
OEM original
Caterpillar parts through verified distributor channels where available.
Balanced choice
Original-equipment quality at a lower cost, matched to your Caterpillar 3406.
Verified equivalent
Quality aftermarket or verified equivalents, confirmed before ordering.
Istanbul hub to CIS and global ports
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.
Caterpillar 3406 parts FAQ
Which Cat 3406 versions do you cover?
3406B, 3406C and 3406E marine — send the exact model and serial number.
Can you match 3406 parts by engine serial?
Yes — the engine serial number lets us identify the exact build and correct parts.
How fast do you quote?
For part-number requests we reply within 2–4 business hours.
Do you deliver to ports outside Turkey?
Yes — CIS, Middle East and worldwide, with export documents from Istanbul.
Genuine or aftermarket?
Genuine, OEM-equivalent and verified aftermarket — confirmed before ordering.
Send your Caterpillar 3406 part number
Engine serial number, part number, quantity and destination — we check availability and prepare an export-ready quote.
Request a quote