JCB TM420S
Built: 2025-2025 · Series: Other models
More machines from model year 2025
Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required
The JCB TM420S rolled off the line in 2025 as a tractor. Power comes from a four-cylinder engine; from 4.8 litres it draws 129 kW.
It measures 6.03 m in length and 2.55 m in width. Unladen, it tips the scales at 11,700 kg.
Within the range, rated power spans from 12.9 to 250 kW; with 129 kW, the TM420S sits in the mid-field. Directly alongside are the HMV FASTRACK 3155 with 124 kW below and the Fastrac 3185 with 138 kW above.
Technical data
Engine
| Power | 129 kWcorrect |
|---|---|
| Cylinders | 4correct |
| Displacement | 4,765 cm³correct |
Dimensions and weights
| Length | 6,030 mmcorrect |
|---|---|
| Width | 2,548 mmcorrect |
| Unladen weight | 11,700 kgcorrect |
| Gross vehicle weight | 13,500 kgcorrect |
Where this model stands
Power-to-weight ratio: 11 kW/t (129 kW / 11.7 t)
Power class: Large (100–180 hp)
Stronger than 88% of the tractors in the register — out of 15,105 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the JCB TM420S have?
The JCB TM420S delivers 129 kW.
How much does the JCB TM420S weigh?
The unladen weight is 11,700 kg.
What is the gross vehicle weight of the JCB TM420S?
13,500 kg.
What engine does the JCB TM420S have?
4 cylinders, 4,765 cm³ displacement.
What are the dimensions of the JCB TM420S?
6,030 mm × 2,548 mm.
When was the JCB TM420S built?
Production years: 2025.
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 9 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.
The technical data on this page comes from official vehicle registration records (RDW/Traficom), not from the manufacturer.
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Other models in this series
1115
1135
1135 FASTRAC
145
155-30
155-65
155-65 FASTRAC
185-65
185-65 FASTRAC
2135 FASTRAC`
2155
2170
Sources: [1]
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.