JD Engine 1- 4045AFM85 Marine Generator Drive Engine
John Deere 4045AFM85 marine generator drive engine is a PowerTech 4.5L marine engine that efficiently induces propulsion for powering recreational vessels – commercial fishing boats, small utility boats, trawler yachts, workboats, etc. This model is a perfect replacement for 6.8L 6068TFM75
and 6.8L 6068TFM76 engines.
Key Features
Option to Switch RPM Operation (1800 & 1500)
With the optional low-rpm mode, vessel owners have more power to run the engine for extended hours for heavy-duty applications.
4-Valve Cylinder Head
The 4-valve cylinder head configuration offers enhanced transient response time, low-speed torque, and super airflow.
High-pressure Common-rail (HPCR) Fuel System
The integrated system combines variable common-rail pressure, besides higher and multiple injection pressures. It also controls the fuel injection timing and the injection process from start to end.
The HPCR also features a self-priming electronic transfer pump to deliver high performance and simplify maintenance while reducing fuel consumption and emission.
Robust Integrations
- Electronic Engine Control Unit (ECU) – state-of-the-art control panel to customize engine protections and diagnose fault codes for maximum uptime, safety, and reliability
- Integrated Heat Exchanger – high-capacity heat exchanger to tackle operations during extreme conditions
- Keel-cooled or Heat Exchanger – advanced internal cooling system to regulate overheating without using anodes, sea strainer, or seawater pump
- Internal Balancers – integrated balancers cut down engine vibration and noise (unique and available in John Deere 4045 marine engines only)
- Water-cooled Exhaust Manifold – cools and regulates noise-free operation while eliminating the need for cluttered external hoses and attachments
- Replaceable Cylinder Liners – the wet-type cylinder liners can be replaced when required without the need for engine upgrade to reduce maintenance costs and extend lifespan
Classification Societies
ABS, BV, CCS, CRS, DNV-GL, LR
Emissions Certifications
- EPA Commercial Marine Tier 3
- IMO MARPOL Annex VI Tier II Compliant
- Marine China Stage II †
† Available on 89 kW (120 hp) generator drive rating
Technical Specifications
| Model | 4045AFM85 |
| Number of cylinders | 4 |
| Displacement-- L (cu in) | 4.48 (273) |
| Bore and Stroke-- mm (in) | 107 x 127 (4.21 x 5.00) |
| Engine Type | In-line, 4 Cycle |
| Aspiration | Turbocharged and air-to-coolant aftercooled |
Engine Dimensions
| Length - mm (in) | 1119 (44.1) |
| Width Maximum - mm (in) | 868 (34.2) |
| Height - mm (in) | 964 (38.0) |
| Height, crankshaft centerline to top - mm (in) | 653 (25.7) |
| Height, crankshaft centerline to bottom - mm (in) | 311 (12.2) |
| Weight, dry - kg (lb) | 578 (1274) |
Calculated Generator-set Rating - 1800 RPM
| Rated Speed Hz (rpm) | 60 (1800) |
| Generator efficiency % | 88-92 |
| Engine Power Prime kW (hp) | 110 (147.5) |
| Power factor | 0.8 |
| Calculated generator set rating prime – kWe | 97-101 |
| Calculated generator set rating prime – kVA | 121-126 |
Calculated Generator-set Rating - 1500 RPM
| Rated Speed Hz (rpm) | 50 (1500) |
| Generator efficiency % | 88-92 |
| Engine Power Prime kW (hp) | 89 (119.4) |
| Power factor | 0.8 |
| Calculated generator set rating prime – kWe | 78-82 |
| Calculated generator set rating prime – kVA | 98-103 |