John Deere 7420 MFWD
Series: Other models
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As a tractor, the John Deere 7420 belongs to the John Deere MFWD Tractor series. 137 hp (100.7 kW) is what the six-cylinder engine gets out of 6.8 litres. With a rated speed of 2,100 rpm, it is built for pulling power, not for revving.
Empty, it weighs 5,975 kg. Wheelbase is 2.65 m.
Within the range, rated power spans from 64.9 to 335 hp; with 137 hp, the 7420 sits in the mid-field. Directly alongside are the 7230 Premium Cab Tractor with 133 hp below and the 6140D Cab with 140 hp above.
Technical data
Engine
| Power | 136.9 hp (100.7 kW)correct |
|---|---|
| Rated speed | 2,100 rpmcorrect |
| Torque | 561.3correct |
| Speed at max. torque | 1,398 rpmcorrect |
| Cylinders | 6correct |
| Displacement | 6,800.6 cm³correct |
| Aspiration | turbochargedcorrect |
Dimensions and weights
| Wheelbase | 2,651.8correct |
|---|---|
| Unladen weight | 5,975 kgcorrect |
Drivetrain and chassis
| Gearbox type | PowerQuad Pluscorrect |
|---|---|
| Forward gears | 16correct |
| Reverse gears | 16correct |
Working data
| Pump flow | 101.1 l/mincorrect |
|---|---|
| Fuel tank capacity | 250.2 lcorrect |
Where this model stands
Power-to-weight ratio: 16.9 kW/t (101 kW / 6 t)
Power class: Large (100–180 hp)
Stronger than 81% of the tractors in the register — out of 15,240 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the John Deere 7420 have?
The John Deere 7420 delivers 137 hp.
How much does the John Deere 7420 weigh?
The unladen weight is 5,975 kg.
What engine does the John Deere 7420 have?
6 cylinders, 6,801 cm³ displacement.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Check the weights in the papers against the figures here — attachments change them.
- Load the hydraulics and watch for sag.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
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This page carries 15 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Other models in this series
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Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.