Engines

The STEYR Marine Engine 256 is designed for high performance and continuous pleasure boat rating. The innovative fuel injection technology enables an excellent torque and speed range.

The complete engine package is conceived especially for sterndrive systems. Remarkable features of the STEYR Marine Engines are the dynamic behavior and immediate response as well as the impressive acceleration.

SERVICE LIFE

The STEYR Marine Engines are manufactured using high alloy materials to provide enduring longevity for all running components. Using corrosion resistant materials for the entire seawater system as a standard in the dual circuit cooling system. Consequently designed solutions to meet the criteria of marine environment guarantee the best corrosion protection for any auxiliaries and electronic components in marine ambience.

COMFORT

The patented STEYR 2-stage UNIT INJECTOR fuel injection technology provides for a worldwide approved and smooth operation noise.

Noise emission levels are over the most important operating range below the running noise of gasoline engines. The additional elastic separation of the Monoblock against the aluminum casted engine housing reduces the engine related vibration transmitted into the hull therefore the noise level on board is further reduced.

Torque and speed range characteristic enable optimal matching to individual application while maintaining transmission, gear ratio and propeller dimensions. The big choice of matched accessories fulfills the highest level of quality and comfort for you on board of your vessel.

EXHAUST EMISSIONS

The trend-setting UNIT INJECTOR system is most environmentally friendly. We can fulfill the BSO II regulations as well as the announced EPA Tier 2 and suchlike emission regulations.

TRANSMISSION MO256H45

STEYR Marine Engines allow the installation with different driving system in your boat. Adaptation for Marine transmission with different output configuration (direct, horizontal down-angle 8°,V-drive 12°), to choose from as well as an intermediate housing for propeller shaft and kits for installation to MerCruiser Bravo I, Bravo II and Bravo III Stern-Drives.

TRANSMISSION MO256K43

The STEYR Marine Engine MO256K43 was especially developed for Water Jet adaptation and surface drives.

TECHNICAL DESCRIPTION

ENGINE MONOBLOCK

• Our unique and robust MONOBLOCK design, engine block and cylinder head made from high grade alloy cast iron, without limitation in cooling and unrivaled roundness of the cylinder gives exceptional life time for the liner.
•  Chrome-Molybdenum forged crankshaft, dynamically balanced
•  Pistons are cast from high silicon aluminum, with oil cooling channel in
• 3-ring technology
• Hardened valve-seats high performance NIMONIC valve material
•  Elastic coupling on flywheel, design matched depending on application

ENGINE MOUNTING

Adjustable front and rear silent blocks capable to take propeller thrust.

LUBRICATION SYSTEM

•  Exchangeable oil filter cartridge
•  Oil scavenging through dipstick pipe ? Closed crankcase breathing system

FUEL SYSTEM

•  Integrated high pressure UNIT INJECTOR up to 2,000 bar with dual stage fuel-injection technology, operated by overhead camshaft and rocker arms.
•  Electric fuel pump (automatic bleeding capability)
•  Exchangeable fuel filter cartridge

EXHAUST SYSTEM

Freshwater cooled exhaust manifold and seawater cooled exhaust elbow

COOLING SYSTEM

• Freshwater cooling system with thermostat control
•  Heat exchanger with integrated expansion tank system
• Connection prepared for boiler/cabin heating system
•  Sea water pump with impeller, integrated and replaceable wear plates

Extra Details

• V-berth with comfortable cushions, Approximately 6 feet 8 inches in length
• Convenient storage space located under the berths
• Cabin equipped with two 12V lights for ample illumination
• Additional lighting with two 12V lights under the hard top
• Includes an inverter for added convenience
• Enjoy warmth during cooler days with the bus cabin heater
• Relax on the stylish teak bench situated across the transom
• Easily access the water with the swim platform featuring a ladder for convenience

Decks and Haul

• Enjoy fresh air with two opening port lights
• Enhanced durability with all aluminum-framed windows; three across the front with one opening
• Long slider windows on the sides for optimal ventilation
• Open back design for easy access and spacious feel
• Improved performance with fast-running rails added to the hull
• Convenient saltwater washdown in the cockpit for easy cleaning
• Refreshing freshwater washdown in the cockpit for added convenience
• Equipped with two rod holders for your fishing gear

Mechanical Disclaimer

Engine and generator hours are as of the date of the original listing and are a representation of what the listing broker is told by the owner and/or actual reading of the engine hour meters. The broker cannot guarantee the true hours. It is the responsibility of the purchaser and/or his agent to verify engine hours, warranties implied or otherwise and major overhauls as well as all other representations noted on the listing brochure.