John Deere
John Deere 4045HFG85
4045 Series
The John Deere 4045HFG85 is a 4.5-litre inline-4 diesel engine for generator sets, rated at 161 kVA / 129 kWe standby power at 1,800 RPM (60 Hz). It is a liquid-cooled engine built in United States. It meets 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 · 60 Hz
- 161 kVA
- Electrical Output
- 129 kWe
- Cylinders
- L4
- Displacement
- 4.5 L
- Rated Speed
- 1,800 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 130 | 117 | 146.3 |
| Standby Power | 143.3 | 129 | 161.3 |
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John Deere 4045HFG85 overhaul & repair parts
Already running a John Deere 4045HFG85? Start with the parts you need, then send your nameplate so we can help check the right references for your engine.
Reviewed part-number references
A starting point for identification. Fitment must be confirmed before ordering.
- Complete block assemblySE501784
John Deere Reman complete block assembly without auxiliary drive
Fitment check: Match the exact engine model; confirm the full engine serial number and assembly configuration before ordering
Source: John Deere 4045HFG85 Reman Parts Guide
Selected references only; this is not a complete overhaul list or a stock listing.
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John Deere 4045HFG85 generator set context
The John Deere 4045HFG85 is listed here as a diesel generator-drive engine for 60 Hz generator sets, with a headline 161 kVA / 129 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 | 4045HFG85 |
| Series | 4045 Series |
| Configuration | L4 |
| Cylinders | 4 |
| Displacement | 4.5 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Tier 3 |
| Country of Origin | United States |
Frequently asked questions
What is the power output of the John Deere 4045HFG85?
The John Deere 4045HFG85 is rated at 161 kVA standby / 146 kVA prime at 60 Hz (1,800 rpm).
Does the 4045HFG85 run at 50 Hz or 60 Hz?
The John Deere 4045HFG85 is rated for 60 Hz (1,800 rpm).
What fuel does the John Deere 4045HFG85 use?
The John Deere 4045HFG85 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the 4045HFG85?
The John Deere 4045HFG85 is an inline-4 (4-cylinder) engine with a displacement of 4.5 L.
What emissions information is listed for the 4045HFG85?
This record lists U.S. EPA Tier 3 for the John Deere 4045HFG85. 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 4045HFG85?
The John Deere 4045HFG85 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 4045HFG85?
This page links reference documents for the John Deere 4045HFG85. Check each document's title, model coverage, revision and rating conditions before using it for selection.