John Deeretractor(no series)
John Deere 8420 - TRACTOR
Specifications · OEM parts breakdown
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John Deere 8420 - TRACTOR specifications
Engine
| Cylinders | 6 |
| Displacement | 8128 cc (496.0 cu in) |
| Bore | 11.61 cm (4.57 in) |
| Stroke | 12.90 cm (5.08 in) |
| Compression Ratio | 16.5:1 |
| Rated RPM | 2200 RPM |
Performance
| Rear PTO Speed | 1000, 540/1000 RPM |
| Gears | 16 forward and 4 reverse |
| Chassis | 4×4 MFWD 4WD |
Service capacities (summary)
| Fuel Tank Capacity | 605.6 l (160.0 gal) |
| Coolant Capacity | 34.0 l (9.0 gal) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
8420 - TRACTOR common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| AR103220 | Strainer | Fuel system service | Check fitment → |
| R502778 | Fuel Filter | Fuel system service | Check fitment → |
| AH165504 | Fuel Filter | Fuel system service | Check fitment → |
| R101042 | O-Ring | Fuel system service | Check fitment → |
| RE506970 | Fuel Line, Fuel Line | Fuel system service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
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