^BAWU — W9L46 | Zulu Code

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Description

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Did you know

The Wärtsilä 46 engine series, from which the W9L46 is derived, has a history dating back to at least 1996, with some sources indicating the broader Wärtsilä 46F engine series has over 18 years of operational history since 2007. Wärtsilä began designing its own diesel engines in Vaasa in 1954, with the first Wärtsilä-designed diesel engine, the Wärtsilä Vasa 14, starting in 1959.
The W9L46 is part of the Wärtsilä 46 series, which includes both in-line and V-configuration engines. It is a nine-cylinder in-line engine within this medium-speed, four-stroke engine family.
The Wärtsilä 46 series, including the W9L46, is known for its fuel flexibility, capable of running on various fuels from heavy fuel oil to more sustainable alternatives. These engines are designed for efficient and reliable performance in demanding marine applications, offering high power density and extended overhaul intervals for greater availability.

Model	Cylinders	Bore × Stroke (mm)	Power Output (kW)	RPM
W9L46	9L	460 × 580	9000-10800	500-600
W6L46F	6L	460 × 580	7500	600
W8L46	8L	460 × 580	8000-9600	500-600
W12V46	12V	460 × 580	12000-14400	500-600

Sources: wartsila.com; impcorporation.com; younesbros.com; wartsila.com; scribd.com; maritimeinformed.com; maritimeinformed.com

Competitive Models

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Spares

Positions 1–12 are the same part on every engine and are safe to quote by code. 13 and 14 vary with cylinder count.

1Cylinder Liner — page under construction
2Piston — page under construction
3Fuel Injector Nozzle — page under construction
4Cylinder Head / Cover — page under construction
5Connecting Rod — page under construction
6Main Bearing — page under construction
7Bottom-End (Crankpin / Con-Rod) Bearing — page under construction
8Fuel Injection Pump — page under construction
9Fuel Injector (Complete) — page under construction
10Exhaust Valve — page under construction
11Inlet Valve — page under construction
12Piston Ring Set — page under construction
13Crankshaft — page under construction
14Camshaft — page under construction

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Code map

^B  A  W  U
 │  │  │  └── Model: W9L46
 │  │  └───── Make: Wärtsilä
 │  └──────── Equipment: Aux Engine
 └─────────── System: Aux Engine Power Generation