Engine and Spares
(For Sale)

Wartsila 4L20 Engine For Sale & Wanted – Wartsila L20 Marine Engine Listings

About the Wartsila 4L20 Engine

The Wartsila 4L20 Engine is part of the Wartsila L20 medium-speed marine diesel engine series. Manufactured by Wartsila, the L20 engine platform is widely used for marine auxiliary power and generator set applications on commercial vessels, offshore installations, and industrial energy systems.

The Wartsila 4L20 features a 4-cylinder inline configuration and is commonly installed as a marine generator engine (genset) providing reliable electrical power for onboard systems. The L20 engine family is known for its durability, fuel efficiency, and long operational life in demanding marine environments.

On IndustrialMarinePower, companies and equipment suppliers can list Wartsila 4L20 engines for sale or wanted, as well as related engine equipment and spare parts used in marine and industrial power plants.

Wartsila 4L20 Engine Specifications

Typical technical specifications of the Wartsila 4L20 engine include:

• Engine Model: Wartsila 4L20

• Engine Type: Medium-Speed Marine Diesel Engine

• Configuration: Inline 4 Cylinder

• Power Output: approx. 720 – 800 kW

• Horsepower: approx. 965 – 1070 HP

• Engine Speed: 900 RPM

• Bore: 200 mm

• Stroke: 280 mm

Approximate Dimensions

• Length: approx. 3.3 – 3.6 meters

• Width: approx. 1.6 – 1.8 meters

• Height: approx. 2.4 – 2.6 meters

Approximate Weight

• Dry Weight: approx. 9,000 – 10,000 kg depending on configuration.

Specifications may vary depending on installation type, generator package configuration, and year of manufacture.

Engine Components and Related Equipment

The Wartsila 4L20 engine normally operates together with several important systems and components that form a complete marine generator or auxiliary power package.

Common equipment and spare parts associated with the Wartsila 4L20 include:

• Turbocharger units

• Fuel injection pumps and injectors

• Cylinder heads

• Pistons and piston rings

• Cylinder liners

• Connecting rods

• Crankshafts

• Cooling pumps and water pumps

• Lubrication oil pumps

• Engine control systems

• Alternators (generator units)

• Exhaust systems and silencers

Spare Parts Trading on IndustrialMarinePower

IndustrialMarinePower is a global marketplace where marine equipment suppliers, ship owners, and spare parts dealers can buy, sell, or post wanted listings for Wartsila engines and engine spare parts.

Users can create listings for:

• Wartsila 4L20 complete engines

• Wartsila L20 generator sets

• used or rebuilt Wartsila engines

• Wartsila engine spare parts

• surplus marine engine components

Sellers can post equipment listings, while buyers can submit wanted requests for specific engine models or spare parts required for maintenance and overhaul projects.

Typical Applications

The Wartsila 4L20 engine is commonly used in:

• marine auxiliary generator sets

• cargo vessels

• offshore support vessels

• industrial power generation plants

• standby and backup power systems

Because of its reliable design, the engine is widely used in commercial marine fleets and industrial energy facilities worldwide.

Example Listing Description

Wartsila 4L20 engine for sale or wanted – Wartsila L20 marine diesel engine.

Condition: New / Used / Rebuilt / Overhauled
Application: Marine generator sets, auxiliary engines, and industrial power systems.

Complete engines, generator packages, and spare parts such as pistons, cylinder liners, turbochargers, injectors, and engine components can be listed on IndustrialMarinePower.

Contact the seller for price, engine hours, location, and shipping information.