John Deerepower unit(no series)
John Deere 4039 - POWER UNIT
OEM parts breakdown
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The John Deere 4039 is a 3.9-liter, four-cylinder diesel power unit designed for agricultural, construction, and industrial applications. It features heavy-duty components and a mechanical design intended for long service life and ease of maintenance.
4039 - POWER UNIT common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 19M7811 | Bolt | Fuel system service | Check fitment → |
| RE51650 | Sediment Bowl | Fuel system service | Check fitment → |
| R502864 | Gasket | Fuel system service | Check fitment → |
| RE503727 | Filter Head | Fuel system service | Check fitment → |
| 19M7867 | Bolt | Fuel system service | Check fitment → |
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