John Deere
John Deere 4045HFG81
4045 Series
The John Deere 4045HFG81 is a 4.5-litre inline-4 diesel engine for generator sets, rated at 65 kVA / 52 kWe standby power at 1,500 RPM (50 Hz). It is a liquid-cooled engine built in United States. It meets Euro Stage IIIA / U.S. EPA Tier 3 emissions standards.
Overhaul & repair parts- Supporting documents
- 1 document · 1 datasheet
- Last updated
- 2026-05-29
- Package route
- diesel generator sets
- Standby Power · 50 Hz
- 65 kVA
- Electrical Output
- 52 kWe
- Cylinders
- L4
- Displacement
- 4.5 L
- Rated Speed
- 1,500 / 1,800 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
50 Hz1500 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 52.2 | 47 | 58.8 |
| Standby Power | 57.8 | 52 | 65 |
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 55.6 | 50 | 62.5 |
| Standby Power | 62.2 | 56 | 70 |
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John Deere 4045HFG81 overhaul & repair parts
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John Deere 4045HFG81 generator set context
The John Deere 4045HFG81 is listed here as a diesel generator-drive engine for 50 Hz and 60 Hz generator sets, with a headline 65 kVA / 52 kWe / standby rating. Use this page to compare the published engine output, electrical kWe/kVA ratings, emissions level, datasheet availability, and neighboring models before specifying an alternator, controller, enclosure, voltage, and compliance package.
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Technical Specifications
| Brand | John Deere |
| Model | 4045HFG81 |
| Series | 4045 Series |
| Configuration | L4 |
| Cylinders | 4 |
| Displacement | 4.5 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | Euro Stage IIIA / U.S. EPA Tier 3 |
| Country of Origin | United States |
Frequently asked questions
What is the power output of the John Deere 4045HFG81?
The John Deere 4045HFG81 is rated at 65 kVA standby / 59 kVA prime at 50 Hz (1,500 rpm); and 70 kVA standby / 63 kVA prime at 60 Hz (1,800 rpm).
Does the 4045HFG81 run at 50 Hz or 60 Hz?
The John Deere 4045HFG81 is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).
What fuel does the John Deere 4045HFG81 use?
The John Deere 4045HFG81 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the 4045HFG81?
The John Deere 4045HFG81 is an inline-4 (4-cylinder) engine with a displacement of 4.5 L.
What emissions information is listed for the 4045HFG81?
This record lists Euro Stage IIIA / U.S. EPA Tier 3 for the John Deere 4045HFG81. Confirm the exact engine family, model year, configuration and applicable manufacturer certification documents before specifying it for a regulated project. A database label does not establish certification of a complete generator package.
What is the catalog status of the John Deere 4045HFG81?
The John Deere 4045HFG81 is marked active in this database. Confirm current production and availability with the manufacturer; catalog status is not a live supply check.
Are reference documents available for the 4045HFG81?
This page links reference documents for the John Deere 4045HFG81. Check each document's title, model coverage, revision and rating conditions before using it for selection.