• 4045AFM85
  • 4.5L PowerTechâ„¢
  • 119-168 kW (160-225 hp)


Emissions Certifications

IMO Tier 2 
EPA Tier 3 
RCD 2 

General Data (based on standard option configuration)

Number of cylinders4
Displacement-- L (cu in)4.5 (275)
Bore and Stroke-- mm (in)107 x 127 (4.21 x 5.00)
Engine TypeIn-line, 4- Cycle
AspirationTurbocharged and air-to-coolant aftercooled
Length - mm (in)1105 (43.5)
Width Maximum - mm (in)864 (34.0)
Length to rear face of flywheel housing - mm (in)890 (35.0)
Flywheel housing SAE3
Height - mm (in)964 (38.0)
Height, crankshaft centerline to top - mm (in)654 (25.7)
Height, crankshaft centerline to bottom - mm (in)310 (12.2)
Weight, dry - kg (lb)578 (1274)

Engine Specifications

Performance RatingPower KW (bhp) Rated Speed (rpm) Rated fuel consumption L/hr(gal/hr)
M1119 ( 160 ) 2300 33.2 ( 8.8 )
M2134 ( 180 ) 2400 36.9 ( 9.7 )
M3149 ( 200 ) 2500 44.2 ( 11.7 )
M4168 ( 225 ) 2600 48.6 ( 12.8 )

M rating

M1 - Typical annual usage (hr)Unrestricted
M1 - Typical full-power operation (hr)Uninterrupted
M1 - Typical load factor>65%
M2 - Typical annual usage (hr)000-5
M2 - Typical full-power operation (hr)16 of each 24 hr
M2 - Typical load factor<=65%\
M3 - Typical annual usage (hr)000-4
M3 - Typical full-power operation (hr)4 of each 12 hr
M3 - Typical load factor<=50%
M4 - Typical annual usage (hr)000-3
M4 - Typical full-power operation (hr)1 of each 12 hr
M4 - Typical load factor<=40%


  • High torque provides excellent vessel control and maneuverability. Lower rated propulsion RPM reduces vibration and noise for improved crew comfort.

  • Excellent airflow through 4-valve cylinder head delivers greater low-speed torque and better transient response time.

  • The HPCR fuel system provides variable common-rail pressure, multiple injections, and higher injection pressures. It also controls fuel injection timing and provides precise control for the start, duration, and end of injection. Electronic transfer pump is self-priming for ease of maintenance. Provides high performance, excellent fuel economy, and low emissions.

  • Integrated components eliminate external hoses and fittings. Wet exhaust manifold creates a cooler and quieter environment for passengers and crew.

  • Replaceable wet-type cylinder liners are precision-machined and hardened for long life. Allows engine to be rebuilt to original specifications.

  • Advanced fault code diagnostics and customizable engine protections ensure reliability and uptime. Provides highly customizable features and trim to integrate your vessel.

  • Integrated expansion tank, heat exchanger, and exhaust manifold. High-capacity heat exchanger provides reliable operation in adverse conditions.

  • Closed cooling system in keel-cooled engine option eliminates the need for a sea strainer, seawater pump, or anodes. Heat exchanger option offers a lighter, more compact, and simpler engine installation.

  • Internal balancers reduce engine noise and vibration for crew comfort. NOTE: John Deere 4045 engines only.

  • Either-side oil fill/dipstick combinations and remote oil and fuel filter options are available for easier service access.