The John Deere 4045HF120 is a 4.5 L 4-cylinder turbocargador con enfriador posterior engine rated at 1500 rpm, producing up to 106 kW. It powers generator sets from Atlas Copco, John Deere and Kohler, including the QES 155, QES 170 and KD100. It holds 13.5 L (3.6 gal) of oil.
Part of the John Deere 4045 engine family — 52 variants share parts & fitment.
| Oil capacity | 13.5 L |
|---|---|
| Displacement | 4.5 L |
| Cylinders | 4 |
| Aspiration | Turbocargador con enfriador posterior |
| Rated speed | 1500 rpm |
| Gross power | 106 kW |
Shared across brands: Atlas Copco, John Deere, Kohler
| Part # | Description | Category |
|---|---|---|
| 352575 | Alternator | alternator |
| PA-324494 | 24 V Battery | battery |
| PA-352253 | Battery Rack, free standing | battery |
| PAA-326767 | 24 V Battery Charger w/alarms | battery |
| 352595 | Controller, Decision-Maker 340 | controller |
| 352570 | Cooling, Unit Mounted Radiator | cooling |
| PA-275477 | Exhaust Manifold Blanket | cooling |
| PA-276943 | Flexible Exhaust Connector | cooling |
| 255130 | Safeguard Breaker | electrical |
| 273744 | Run Relay, 12 V | electrical |
| 274593 | Voltage regulator (standard) | electrical |
| 336401 | Isochronous Governor | electrical |
| 347274 | Failure Relay | electrical |
| 352374 | Fuel Pressure Gauge | electrical |
| PA-273913 | Dry Contact Kit | electrical |
| PA-293906 | Emergency Stop, Remote | electrical |
| PA-346588 | Current Transformer | electrical |
| PA-354752 | Load Bank Controller | electrical |
| 352371 | Flexible Fuel Lines | fluid |
| RE520842 | Final Fuel Filter, 109 mm (4.3 in), 2 micron | fuel_filter |
| RE521248 | Primary Fuel Filter, 109 mm (4.3 in), 10 micron | fuel_filter |
| 0000I00 | Fuel Solenoid | fuel_solenoid |
| X--386--127 | Line, Flex Fuel | hose |
| X--386--48 | Fuel line, flexible | hose |
| X--426--9 | Clamp, hose, .25/.70 in. | hose |
| RE504836 | Oil Filter | oil_filter |
| TY26800 | Torq-Gard™ 15W-40 | oil_filter |
| 006226 | other_service | |
| 10000024262 | Decal, phase switch warning | other_service |
| 10000029864 | Decal set, MDG75 mechanical group | other_service |
| 12142 | Decal, ground | other_service |
| 26386 | Decal, pinch point | other_service |
| 352585 | Block Heater | other_service |
| 46606373 | other_service | |
| 50876 | Decal, positive battery disconnect | other_service |
| 51552 | Decal, high temp | other_service |
| C07575 | DC Engine Wiring | other_service |
| C07651 | AC Heater Wiring | other_service |
| GM103522--1 | Engine, 12V JD4045HFG | other_service |
| GM103523--1 | Engine, 12V JD4045HFG | other_service |
| GM32386-KP1 | Exhaust Silencer, Hospital | other_service |
| GM94201--1 | Engine, 12V JD4045HFG | other_service |
| GM94202--1 | Engine, 12V JD4045HFG | other_service |
| GM94206 | Tube, Exhaust | other_service |
| GM94207 | Tube, DPF To Decomp Tube | other_service |
| GM94222 | Tube, Air Intake | other_service |
| GM94228 | Tube, Exhaust | other_service |
| GM94230 | Tube, Air Intake | other_service |
| GM98896 | Tube, DPF To Decomp Tube | other_service |
| PA-324470 | Exhaust Silencer, Critical | other_service |
| PA-354809 | Exhaust Silencer, Critical (kit) | other_service |
| X--672--7 | Clamp, insulated, .44 in. | other_service |
| 352571 | Skid | physical |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.
The John Deere 4045HF120 engine has an oil capacity of 13.5 liters.
The John Deere 4045HF120 has a displacement of 4.5 liters with 4 cylinders.
The John Deere 4045HF120 powers 5 generator set(s), including Atlas Copco QES 155, Atlas Copco QES 170, John Deere 4045HF120, Kohler KD100, Kohler KD110.