MO-4cyl series - product leaflet

Product catalog summary

Overview: The document provides technical specifications and features of the MO 4-cylinder marine engine series by STEYR MOTORS, known for its Monoblock design and 2-stage unit injection technology. These engines are recognized for their power-to-weight ratio, operational safety, robustness, and longevity.

Specifications:

Power Range: 55 - 125 kW
Displacement: 2.1 liters
Dry Weight: 243 - 276 kg
Rated Power and Speed: Varies by model, ranging from 55 kW at 3200 RPM to 125 kW at 4000 RPM
Max Torque: Ranges from 190 Nm at 2050 RPM to 330 Nm at 2000 RPM

Main Features:

Suitable for commercial and leisure applications
Dual circuit cooling system with corrosion-resistant materials
Compact and lightweight design
SOLAS approved, EPA Tier II, and RCD compliant
Various drive systems available
Standard 12 V alternator, optional 24 V
Preparation for keel cooling and other options

Engine Models:

MO84K32: 55 kW, 3200 RPM, 190 Nm
MO94K33: 66 kW, 3300 RPM, 210 Nm
MO114K33: 81 kW, 3300 RPM, 255 Nm
MO144M38: 106 kW, 3800 RPM, 288 Nm
MO164M40: 120 kW, 4000 RPM, 320 Nm
MO174V40: 125 kW, 4000 RPM, 330 Nm

Certifications: All models are SOLAS and RCD certified, with some models also meeting EPA Tier II and BSO II standards.

Propulsion Systems: Options include transmission, sterndrive, and water jet systems.

Overall Characteristics: The engines are direct injection diesel, 4-stroke, turbocharged with a 2.1-liter displacement, featuring an 85 mm bore and 94 mm stroke, and dual circuit cooling.

Note: Specifications and designs are subject to change without notice, and actual products may differ from images shown.

Catalog excerpts

FACTS Power range: 55 - 125 kW Displacement: 2.1 lt Dry weight: 243 - 276 kg The MO 4-cylinder engine series of STEYR MOTORS comprises long established, globally trusted engines based on the unique Monoblock design with patented 2-stage unit injection technology. Besides an outstanding power to weight ratio, the series' supreme operational safety, robustness and long service life are highly appreciated on the market. MAIN FEATURES Perfectly suited for commercial and leisure applications Dual circuit cooling system with corrosion resistant materials Excellent performance and highest durability Compact and lightweight design SOLAS approved, EPA Tier II and RCD compliant Different drive systems can be installed Standard 12 V alternator, optional 24 V available Preparation for keel cooling and many other options & kits available See more applications on our website or contact us for further references. IM STADTGUT B1 | 4407 STEYR | AUSTRIA

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RATED POWER (KW/HP) Data is subject to change without prior notice. We reserve the right to revise specifications and design as well as to correct misprints and errors. Actual products may differ in appearance from images shown. Dimensions may differ according to engine types and are not applicable for installations. 06/2016 / 702945 OVERALL CHARACTERISTICS Direct injection Diesel engines 4-stroke, turbocharged 2.1 lt displacement 85 mm bore, 94 mm stroke Dual circuit cooling / Fresh water cooling

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