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Iseki RTS255 vs Iseki TK21
Verdict: Iseki RTS255 vs Iseki TK21
The Iseki RTS255 and the Iseki TK21 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 25 hp. Iseki TK21 is the lighter machine (1,159 kg vs 2,227 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Iseki RTS255 holds more fuel (28.0 L vs 21.2 L) for longer stints between fills. Iseki RTS255 is the newer design (2023 vs 1996). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
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Fit & specs
Iseki
62
Fit score
Best match
Clear
Iseki
62
Fit score
Best match
Clear
Rated power
25 hp
25 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
IsekiReference
IsekiReference
Ten power shift gears in three ranges with power shuttle.Reference
liquid-cooledReference
Engine
Fuel tank
28.0 LReference
21.2 LReference
Engine
18.4 kWReference
18.4 kWReference
Displacement
1.5 LReference
1.4 LReference
Bore/Stroke
87 x 84 mmReference
—
Power
18.4 kWReference
18.4 kWReference
Rated RPM
2500Reference
2500Reference
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Transmission
Type
partial power shiftReference
—
Gears
30 forward and reverseReference
16 forward and reverseReference
Clutch
dry discReference
—
PTO & Hydraulics
Rear Type
JIS0Reference
JIS1Reference
Rear PTO Type
540 (1.375)Reference
540 (1.375)Reference
Engine RPM
819@2500@1266@2500Reference
1244@2500Reference
Dimensions
Wheelbase
150 cmReference
156 cmReference
Weight
2227 to 2579 poundsReference
1159 kgReference
Front tire
7-16Reference
6-14Reference
Rear tire
11.2-24Reference
8.3-24Reference
Standard tires (ag)
Front: 7-16. Rear: 11.2-24Reference
Front: 6-14. Rear: 8.3-24Reference
Optional tires (ag)
Front: 7-14. Rear: 8.3-24Reference
—
Length
280 cmReference
288 cmReference
Width
133 cmReference
130 cmReference
Height (ROPS)
198 cmReference
—
ROPS Weight
1010 kgReference
—
Cab Weight
1169 kgReference
—
Ground clearance
36 cmReference
26 cmReference
Front tread
103 cmReference
105 cmReference
Rear tread
104 cmReference
98 to 113 cmReference
Height
—
188 cmReference
Electrical
Ground
negativeReference
negativeReference
Battery volts
12Reference
12Reference
Battery AH
—
55Reference
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.