Cub Cadet GT 2521 lawn tractor

Cub Cadet GT 2521

Power

21 hp

Production

2004

Transmission

Shaft-driven hydrostatic

Weight

529 lbs [239 kg]

Drive

2WD

From the same series:

GT 2523

Introduction

Cub Cadet GT 2521 Garden Tractor

The Cub Cadet GT 2521 is a garden tractor model produced in 2004, designed for residential lawn maintenance and versatile property management tasks.

Engine and Performance

The tractor is powered by a 626 cc air-cooled engine, delivering a gross power output of 21 hp (15.7 kW). It operates at a rated speed of 3350 RPM. The engine features a bore and stroke of 2.97 by 2.76 inches and requires an oil capacity of 1.5 quarts (1.4 liters) with recommended oil changes every 50 hours.

Transmission and Drive

The GT 2521 utilizes a shaft-driven hydrostatic transmission, providing the operator with infinite forward and reverse speed control. This system facilitates smooth operation during mowing or attachment work. The transmission oil capacity is 6 quarts (5.7 liters).

Hydraulics and PTO

The machine is equipped with an independent front power take-off (PTO) system, which is engaged via an electric clutch. This setup allows for efficient operation of front-mounted implements.

Chassis and Dimensions

Built on a two-wheel drive chassis, the tractor features manual steering and external disc brakes for operator control. It measures 72 inches in length, 56 inches in width, and has a wheelbase of 47 inches. The unit has a ground clearance of 6 inches and a total weight of 529 lbs (239 kg). It is fitted with 16x6.5-8 front tires and 23x9.5-12 rear tires designed for lawn and turf applications.

Electrical System

The electrical system is based on a 12-volt battery with a negative ground configuration. It includes an electric starter and a charging system capable of providing 15 amps of current.

Conclusion

The Cub Cadet GT 2521 is a compact garden tractor suited for landowners requiring a machine capable of handling a 48-inch mower deck and optional sleeve hitch implements. Its hydrostatic drive and independent PTO make it a practical choice for routine lawn care and light-duty property maintenance.

Production Information of Cub Cadet, GT 2521

  • Garden tractor
ManufacturerCub Cadet (a part of MTD)

Dimension and Tires Information of Cub Cadet, GT 2521

4-bolt rear axle1 inch diameter [25 mm]
Wheelbase47 inches [119 cm]
Weight529 lbs [239 kg]
Height (steering wheel)43 inches [109 cm]
Length72 inches [182 cm]
Ground clearance6 inches [15 cm]
Width56 inches [142 cm]
Lawn/turf front16x6.5-8
Lawn/turf rear23x9.5-12

Engine Specifications of Cub Cadet, GT 2521

  • Air-cooled
Starter volts12
Displacement626 cc [38.2 ci]
Oil capacity1.5 qts [1.4 L]
Rated RPM3350
Bore/Stroke2.97x2.76 inches [75 x 70 mm]
Oil change50 h
Sparkplug gap0.030 inches [0.762 mm]
StarterElectric
Idle RPM1400-3600
Power (gross)21 hp [15.7 kW]

Transmission Information of Cub Cadet, GT 2521

Transmission variants 1

TypeShaft-driven hydrostatic
GearsInfinite forward and reverse
Oil capacity6 qts [5.7 L]

Mechanical Specs of Cub Cadet, GT 2521

  • Two-wheel drive
  • Open operator station.
  • Manual steering
  • External disc brakes

Power Information of Cub Cadet, GT 2521

Front PTOIndependent
ClutchElectric

Three-Point Hitch of Cub Cadet, GT 2521

Type(optional)Sleeve hitch

Electrical System of Cub Cadet, GT 2521

GroundNegative
Battery volts12
Charging systemAlternator
Charging amps15

Where it sits

With 21 HP, the Cub Cadet GT 2521 sits just below GT 2523 (23 HP) in Cub Cadet's range. Its power puts it in the 61th percentile of 2000s models in our database (1174 machines).

Frequently asked questions

How much horsepower does the Cub Cadet GT 2521 have?

The Cub Cadet GT 2521 delivers 21 HP.

What years was the Cub Cadet GT 2521 produced?

The Cub Cadet GT 2521 was produced in 2004.

What transmission does the Cub Cadet GT 2521 use?

The Cub Cadet GT 2521 uses a Shaft-driven hydrostatic transmission.

How much does the Cub Cadet GT 2521 weigh?

The Cub Cadet GT 2521 weighs 529 lbs [239 kg].

Is the Cub Cadet GT 2521 4WD?

The Cub Cadet GT 2521 is available in 2WD.

Compare the Cub Cadet GT 2521 with another model