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Cub Cadet GT 2042 vs Cub Cadet GT 2521
Verdict: Cub Cadet GT 2042 vs Cub Cadet GT 2521
The Cub Cadet GT 2042 and the Cub Cadet GT 2521 are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 21 hp. Cub Cadet GT 2042 holds more fuel (12.5 L vs 7.9 L) for longer stints between fills. Cub Cadet GT 2042 is the newer design (2014 vs 2004). 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
Cub Cadet
62
Fit score
Best match
Clear
Cub Cadet
62
Fit score
Best match
Clear
Rated power
21 hp
21 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
Cub Cadet (a part of MTD)Reference
Cub Cadet (a part of MTD)Reference
air-cooled horizontal-shaft V-TwinReference
air-cooledReference
Steering
manualReference
—
Engine
Fuel tank
12.5 LReference
7.9 LReference
Displacement
41.1 ciReference
38.2 ciReference
Bore/Stroke
81 x 66 mmReference
75 x 70 mmReference
Power (gross)
15.3 kWReference
15.7 kWReference
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Oil capacity
5.4 LReference
5.7 LReference
Rated RPM
—
3350Reference
Idle RPM
—
1400-3600Reference
Sparkplug gap
—
0.762 mmReference
Oil change
—
50 hReference
Transmission
Transmission
Hydro-Gear BDU-10Reference
—
Gears
infinite forward and reverseReference
infinite forward and reverseReference
PTO & Hydraulics
Front PTO
independentReference
independentReference
Clutch
electricReference
electricReference
Dimensions
Wheelbase
128 cmReference
119 cmReference
Front tire
16x6.5Reference
16x6.5-8Reference
Rear tire
23x10.5Reference
23x9.5-12Reference
Lawn/turf front
16x6.5Reference
16x6.5-8Reference
Lawn/turf rear
23x10.5Reference
23x9.5-12Reference
Length
193 cmReference
182 cmReference
Front axle
19 mmReference
—
Rear axle
25 mmReference
—
Weight
—
86 kgReference
Width
—
142 cmReference
Height (steering wheel)
—
109 cmReference
Ground clearance
—
15 cmReference
4-bolt rear axle
—
25 mmReference
Cub Cadet GT 2042 attachments
Electrical
Ground
negativeReference
negativeReference
Charging system
flywheel alternatorReference
alternatorReference
Charging amps
15Reference
15Reference
Battery CCA
275Reference
—
Battery volts
12Reference
12Reference
Attachment overview
42" Mower deck
Type
shaft-driven hydrostaticReference
shaft-driven hydrostaticReference
Cutting width
106 cmReference
121 cmReference
Cut height
3 to 10 cmReference
—
Cut positions
10Reference
—
Cub Cadet GT 2521 attachments
48" Mower deck
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.