Wärtsilä · marine engine

Wärtsilä 8L46 Spare Parts

Genuine and Alang-reconditioned spare parts for the Wärtsilä 8L46 — main propulsion on cruise ships, container ships, ferries, roro vessels; auxiliary on very large cruise / container vessels. Shipped from Bhavnagar, India to any port worldwide.

Parameter	8L46
Cylinders	8 (in-line)
Total output (derived)	7,800–8,000 kW
Bore	460 mm
Stroke	580 mm
Configuration	In-line 6L, 7L, 8L, 9L; V 12V, 14V, 16V, 18V
Power	W46 — 975–1,000 kW/cyl; W46F — 1,200 kW/cyl @ 600 rpm; total 7.5–20 MW (16V) up to ~21.6 MW (18V)
Speed	500 / 514 (W46); 600 rpm (W46F)
MEP	23.6–25 bar
SFOC	170–177 g/kWh @ ISO
Fuel	HFO / LFO / biofuel; 46F also runs methanol-ready
Status	🟢 Current (46F); 🟡 W46 original superseded by 46F
Production years	W46 1992–~2005; W46F 2005–present; 46DF dual-fuel 2008–present; 46 methanol-ready 2024–present
Application	Main propulsion on cruise ships, container ships, ferries, RoRo vessels; auxiliary on very large cruise / container vessels

8L46 is the 8-cylinder in-line build of the Wärtsilä 46 family. Total output shown is the published per-cylinder figure × 8 cylinders — arithmetic on maker data, not a measurement. We do not print figures we cannot source.

8L46 Spare Parts We Supply

Cylinder heads (4-valve large-bore) — 8 per engine
piston crowns (oil-cooled forged) — 8 per engine
liners (chrome-plated) — 8 per engine
exhaust valves (Nimonic) — 8 per engine
inlet valves
fuel pumps & valves (large-capacity) — 8 per engine
ABB TPL77/80 or Napier NA-class turbochargers
aftercoolers
governors / WECS
bearings
camshaft segments
crankshaft segments (multi-piece)
gaskets

Genuine, OEM-equivalent and Alang-reconditioned. Every reconditioned part is measured against the maker’s limits before it leaves us. If a part is not listed, send the engine and part number — most Wärtsilä items are sourceable.

About the Wärtsilä 8L46

The 8L46 runs a 460 mm bore and 580 mm stroke. Status: 🟢 Current (46F); 🟡 W46 original superseded by 46F. Built W46 1992–~2005; W46F 2005–present; 46DF dual-fuel 2008–present; 46 methanol-ready 2024–present. Application: Main propulsion on cruise ships, container ships, ferries, RoRo vessels; auxiliary on very large cruise / container vessels

Source: dieselduck Wartsila W46 PDF / jadepowerplants W46 technology review / wartsila.com 46F / scribd W46F main data

Why Source 8L46 Parts from Wattmare?

We are in Bhavnagar, next to Alang — the world’s largest ship-recycling yard. That is where reconditioned main-engine parts actually come from. We hold fast-moving items, source the rest through the yard and our trader network, and dispatch worldwide in 24–48 hours on emergency orders.

Salim Dholia
Wattmare · Bhavnagar / Alang, India

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Frequently Asked Questions

What Wärtsilä 8L46 spare parts do you supply?

Genuine, OEM-equivalent and Alang-reconditioned parts for the 8L46, including Cylinder heads (4-valve large-bore), piston crowns (oil-cooled forged), liners (chrome-plated), exhaust valves (Nimonic), inlet valves. Send the engine and part number for anything not listed.

What is the delivery time for 8L46 parts?

Stock items dispatch the same or next working day from Bhavnagar. Emergency orders ship in 24–48 hours to any major port. Sourced items depend on the yard — we confirm a real date before you commit.

Are your 8L46 parts genuine or reconditioned?

Both. We supply genuine and OEM-equivalent new parts, and Alang-reconditioned parts measured against the maker's limits before dispatch. We tell you which you are buying — we do not sell reconditioned as new.

Need 8L46 parts?

Send the engine number and part number. We quote with a real availability date, not a maybe.

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