Caterpillar 3512 Marine Engine Spare Parts Supplier
Genuine and OEM-quality spare parts for the Caterpillar 3512 marine diesel — a V12 of the 3500 family for propulsion and marine genset duty on commercial vessels and offshore. 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 3512 parts at IWH
The Cat 3512 (3512B/C) is a V12 of Caterpillar's 3500 marine family, used for propulsion and marine generator sets on commercial vessels, tugs and offshore units. It is a high-duty engine where reliable parts matter.
IWH sources 3512 parts by part number — engine core, MEUI / common-rail 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 3512 — key specifications
| Specification | Value |
|---|---|
| Configuration | 4-stroke, turbocharged-aftercooled V12 diesel |
| Displacement | 51.8 litres (3,158 cu in) |
| Cylinders | 12 (V) |
| Bore × stroke | 170 × 190 mm |
| Power output | 1,000–1,650 hp (746–1,230 kW), depending on rating |
| Fuel system | Electronic unit injection (EUI / MEUI) |
| Applications | Marine propulsion & marine genset |
Ratings vary by application and emissions tier — send the engine serial number for the exact build and matching parts.
Caterpillar 3512 parts we supply
| System | Typical Caterpillar 3512 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 / 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 |
Common Caterpillar 3512 part numbers
Genuine Caterpillar part numbers we source for the 3512 (V12 diesel). The Cat 3500 family (3508 / 3512 / 3516) shares cylinder-kit, bearing and valvetrain components, so these numbers are common across the series — confirm your exact build by engine serial. Send a part number or a nameplate photo for a full quote.
| System | Part No. | Component |
|---|---|---|
| Pistons & liners | 0R4446 | Piston kit |
| Pistons & liners | 1014140 | Piston |
| Pistons & liners | 7W0552 | Piston (without pin) |
| Pistons & liners | 1106993 | Wet cylinder liner |
| Pistons & liners | 1N3967 | Piston ring set |
| Pistons & liners | 4W7403 | Piston pin |
| Pistons & liners | 7C8609 | Piston pin bushing |
| Bearings | 1050253 | Main bearing set |
| Bearings | 1W7538 | Connecting rod bearing set |
| Bearings | 7N2048 | Camshaft bushing |
| Valvetrain | 1036304 | Intake valve |
| Valvetrain | 6I1390 | Exhaust valve |
| Crankshaft | 0R8502 | Crankshaft (without gear) |
| Sealing | 6V3774 | O-ring seal set |
Representative selection — genuine Caterpillar 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.
What we need to quote accurately
A part number gets you the fastest answer. No part number? The machine serial / VIN and a nameplate photo let us identify the exact Caterpillar 3512 build.
Where the Caterpillar 3512 runs
The Cat 3512 on commercial vessels, tugs and offshore — propulsion and marine genset.
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 3512.
Verified equivalent
Quality aftermarket or verified equivalents, confirmed before ordering.
Istanbul hub to CIS and global
Multiple items grouped into one shipment from our Istanbul base.
Commercial invoice, packing list and available origin / manufacturer documents.
Delivery to CIS, Central Asia, Middle East and worldwide — fastest route when down.
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Caterpillar 3512 parts FAQ
Which Cat 3512 marine versions do you cover?
3512B and 3512C marine — send the exact model and serial number.
Can you match 3512 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 3512 part number
Engine serial number, part number, quantity and destination — we check availability and prepare an export-ready quote.
Request a quote