Technical register for agricultural, construction and commercial machinery · sourced data
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Kei Mighty Boy SS40T

Built: 1983-1988 · Series: Other models

More machines from model year 1983

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The Kei Mighty Boy SS40T is a vehicle built by Kei. Production: 1983-1988. Transmission: 4/5 speed manual gearbox,; 2 speed automatic gearbox.

Technical data

Engine

EngineF5A inline 3, 543 cc28 PS at 6000 rpm, ; 41 Nm at 4000 rpm31 PS at 6000 rpm, ; 44 Nm at 4000 rpmcorrect

Dimensions and weights

Length3,195 mmcorrect
Width1,395 mmcorrect
Height1,290 mmcorrect
Wheelbase2,150 mmcorrect
Unladen weight530-550kgcorrect

Drivetrain and chassis

Gearbox4/5 speed manual gearbox, ; 2 speed automatic gearboxcorrect

Origin and approval

Body2-seater, 2dr Pickupcorrect

Frequently asked questions

When was the Kei Mighty Boy SS40T built?

Production years: 1983-1988.

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.
  • Shift the gearbox cold and warm — jumps only show up at temperature.
  • 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.

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This page carries 10 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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Sources: Tractor & Construction Plant Wiki (retrieved August 2026) · How we check the data

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