Marine engineers

4045SFM85

Marine Propulsion Engine

  • 4.5L PowerTech™
  • 205-235 kW (275-315 hp)
Download Datasheet

Features

High torque and low rated RPM
  • High torque provides excellent vessel control and maneuverability. Lower rated propulsion RPM reduces vibration and noise for improved crew comfort.
Turbocharged with air-to-seawater aftercooling
  • Cooler turbocharger operation enables higher ratings and efficiencies or applications that require high power or speed.
Multiple service options
  • Standard front fuel service, optional left-hand or right-hand oil filter options for twinengine applications.
Water-cooled exhaust manifold
  • Integrated components eliminate external hoses and fitting
  • Wet exhaust manifold creates a cooler and quieter environment for passengers and crew
High-pressure common-rail (HPCR)
  • 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.
Electronic engine control unit (ECU)
  • Advanced fault code diagnostics and customizable engine protections ensure reliability and uptime. Provides highly customizable features and trim to integrate your vessel.
Replaceable cylinder liners
  • Replaceable wet-type cylinder liners are precision-machined and hardened for long life. Allows engine to be rebuilt to original specifications.
4-valve cylinder head
  • Excellent airflow through 4-valve cylinder head delivers greater low-speed torque and better transient response time.
Integrated heat exchanger
  • Integrated expansion tank, heat exchanger, and exhaust manifold reduce the chance of leaks. High-capacity heat exchanger provides reliable operation in adverse conditions.
Internal balancers
  • Internal balancers reduce engine noise and vibration for crew comfort.
    NOTE: John Deere 4045 engines only.


Specifications

Model 4045SFM85
Number of cylinders 4
Displacement-- L (cu in) 4.5 (275)
Bore and Stroke-- mm (in) 107 x 127 (4.21 x 5.00)
Engine Type In-line, 4- Cycle
Aspiration Turbocharged and air-to-seawater aftercooled
Length maximum - mm (in) 1145 (45.1)
Length to rear face of flywheel housing - mm (in) 900 (35.4)
Flywheel housing SAE 2, 3
Height - mm (in) 922 (36.2)
Height, crankshaft centerline to top - mm (in) 611 (24.0)
Height, crankshaft centerline to bottom - mm (in) 311 (12.2)
Weight, (with oil, no coolant - includes engine, flywheel, and electronics) - kg (lb) 558 (1230)
General Data (based on standard option configuration)

Latest News & Sponsorships

New Boats vs. Used Boats: Pick Which Boat Best Suits Your Needs

If you're struggling to choose between buying a new or used boat, don't worry. We're here to assist you by outlining the various advantages of each option. This will help you make an informed decision and choose the best option for you!

Boating With Your Furry Best Friends: What To Do To Keep Your Dogs Safe

If you need some pointers to psyche your pet for this adventure, here are five tips you can do to make the experience comfortable for them.

2023 Australian Bluewater Freediving Classic

The Classic is now around the corner: March 18th-19th 2023! Thwaites Marine is once again a proud sponsor for this event! Organised by the Coffs Harbour Bluewater Freedivers Club, the Australian Bluewater Freedivers Classic minimises the pressure on the local fish community by running in a stretch of coast of 300 km, between Evans Head in the north, to South West rocks in the south. There is a list of target species that includes mostly fast-growing pelagic species that are not territorial. The limit amount of fish allowed to be weighed in is only 5. This promotes a more thoughtful diving, curbing the style of fishing competitions in Australia towards more sustainable style, that can be enjoyed long into the future.

Coffs Harbour Boatyard

We are very excited to announce the opening of the NEW Coffs Harbour Boatyard with 75 tonne travel lift and massive hardstand area, serviced by highly experienced and qualified staff.