Introduction
John Deere 425 Garden Tractor
The John Deere 425 is a garden tractor manufactured in Horicon, Wisconsin, between 1992 and 2001. It is designed for residential and light commercial grounds maintenance, featuring a robust liquid-cooled powertrain and a hydrostatic transmission system.
Engine and Powertrain
The tractor is powered by a 617 cc liquid-cooled, horizontal-shaft V-twin engine producing 20 horsepower at a rated speed of 3550 RPM. Early production units utilized plastic cam gears, which were superseded by steel components starting from engine serial number 149283. Power is transferred through a Tuff Torq K91 shaft-driven hydrostatic transmission, providing infinite forward and reverse speed control.
Hydraulics and PTO
The hydraulic system utilizes a Gerotor pump with a flow rate of 4.65 gpm (17.6 lpm) at 1000 psi. The machine is equipped with electro-hydraulic clutches for the PTO systems. A 2000 RPM independent mid-PTO is standard, while an independent rear PTO (540 RPM) is available as an option. The tractor must be stationary and powered off to switch between rear, mid, or dual PTO configurations.
Mechanical Specifications
Built on a two-wheel-drive chassis, the 425 features power steering with an optional four-wheel steering configuration for enhanced maneuverability. Braking is handled by wet disc brakes, and traction in challenging conditions is supported by a mechanical rear differential lock. The operator station is open, with a heated cab enclosure offered as an optional accessory.
Conclusion
The John Deere 425 is a versatile garden tractor engineered for durability. With its liquid-cooled engine and compatibility with 48, 54, and 60-inch mower decks, it serves as a reliable platform for property owners requiring consistent performance in mowing and implement-based tasks.
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Production Information of John Deere, 425
- Original price was $8,995 in 1995
- Garden tractor
- Built in Horicon, Wisconsin, USA
| Manufacturer | John Deere |
|---|
Dimension and Tires Information of John Deere, 425
- 5-bolt flange rear axle
| 2WS Weight | 805 lbs [365 kg] |
|---|---|
| 2WS Wheelbase | 50.4 inches [128 cm] |
| Height | 45.9 inches [116 cm] |
| Width | 47 inches [119 cm] |
| AWS Wheelbase | 49.4 inches [125 cm] |
| AWS Weight | 900 lbs [408 kg] |
| Height (cab) | 74 inches [187 cm] |
| Length | 75 inches [190 cm] |
| Lawn/turf front | 16x7.50-8 |
|---|---|
| Lawn/turf rear | 23x10.50-12 |
Engine Specifications of John Deere, 425
- Liquid-cooled horizontal-shaft V-twin
- Early versions of the engine used plastic cam gears. Steel cams were used beginning with engine serial number 149283.
- 2-cylinder
| Starter power | 1.1 hp [0.8 kW] |
|---|---|
| Starter volts | 12 |
| Power | 20 hp [14.9 kW] |
| Coolant capacity | 3 qts [2.8 L] |
| Air cleaner | Paper element with pre-cleander |
| Compression | 9:1 |
| Fuel system | Carburetor |
| Bore/Stroke | 2.992x2.68 inches [76 x 68 mm] |
| Oil capacity | 1.6 qts [1.5 L] |
| Displacement | 617 cc [37.7 ci] |
| Starter | Electric |
| Sparkplug gap | 0.030 inches [0.762 mm] |
| Idle RPM | 1450-3550 |
| Rated RPM | 3550 |
Transmission Information of John Deere, 425
Transmission variants 1
| Transmission | Tuff Torq K91 |
|---|---|
| AWS Oil capacity | 6 qts [5.7 L] |
| 2WS Oil capacity | 7 qts [6.6 L] |
| Type | Shaft-driven hydrostatic |
| Gears | Infinite forward and reverse |
Transmission variants 2
| 6 | Parking brake |
|---|---|
| 4 | Reverse |
| 3 | Forward |
| 1 | Throttle |
| 7 | Differential lock |
| 5 | Cruise control |
| 2 | Brake |
Transmission variants 3
Mechanical Specs of John Deere, 425
- Two-wheel drive
- Wet disc brakes
- Open operator station. Cozy cab available with optional heater.
| Differential lock | Mechanical rear |
|---|---|
| Steering | Power |
Power Information of John Deere, 425
| Rear PTO | Independent |
|---|---|
| Clutch | Electro-hydraulic |
| Mid PTO | Independent |
| Clutch | Electro-hydraulic |
| Mid PTO Type | 2000 |
| Rear PTO Type | 540 (1.375) |
Rear PTO optional. Tractor must be off for shifting between rear, mid, or both PTOs.
Hydraulics Specifications of John Deere, 425
| Type | Gerotor |
|---|---|
| Pump flow | 4.65 gpm [17.6 lpm] |
| Pressure | 1000 psi [69.0 bar] |
| Mid valves(optional) | 2 |
Three-Point Hitch of John Deere, 425
| Rear Type(optional) | 0 |
|---|---|
| Rear lift | 650 lbs [294 kg] |
Electrical System of John Deere, 425
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Battery CCA | 340 |
| Charging system | Alternator |
| Battery Group | U1 |
| Charging amps | 20 |
Where it sits
With 20 HP, the John Deere 425 sits between 322 (18 HP) and 445 (22 HP) in John Deere's range. Its power puts it in the 93th percentile of 1990s models in our database (1093 machines).
Frequently asked questions
How much horsepower does the John Deere 425 have?
The John Deere 425 delivers 20 HP.
What years was the John Deere 425 produced?
The John Deere 425 was produced in 1992-2001.
What engine does the John Deere 425 have?
The John Deere 425 is powered by a 2-cylinder engine.
What transmission does the John Deere 425 use?
The John Deere 425 uses a Tuff Torq K91 transmission.
How much does the John Deere 425 weigh?
The John Deere 425 weighs 805 lbs [365 kg].
Is the John Deere 425 4WD?
The John Deere 425 is available in 2WD.