Engine is smooth-running and reliable V-twin air-cooled design

The tractor is powered by a John Deere iTorque Power System, a combination of engine features and an exclusive hood design that provides superior lugging ability, even cooling, and durability.
A large 44.3 cu in. (726-cc), 21.5-hp (16-kW) engine has plenty of power and torque for superior performance. The larger, more powerful engine also allows the engine in the rear-discharge tractor to be operated at a lower 3100-rpm speed for quieter operation.
Key engine features include:
- 21.5 hp (16.0 kW)
- Large 44.3 cu in. (726-cc) displacement
- Quality features include:
- Cast-iron cylinder liners
- Overhead valves
- Full-pressure lubrication
- Replaceable oil filter
- Dual-stage air cleaner
- V-twin design:
- Excellent power and performance
- Easy starts
- Smooth operation
Flywheel alternator
A flywheel alternator provides plenty of capacity to quickly recharge the battery and power electrical equipment, such as lights or a sprayer:
- 12-amp charging capacity
- Regulated to keep the battery at full charge without risk of overcharging
Fuel tank has large, conveniently located fill opening

Large, 3-in. (7.6-cm) diameter fuel tank filler opening makes adding fuel easy:
- Located on the left fender
- Helps eliminate spillage
- 2-U.S. gal. (7.6-L) capacity
- A low-fuel light is provided on the tractor dash to tell the operator when it is time to refuel.