John Deere 420 Garden Tractor Price, Specs, Review & Attachments 2024

John Deere 420 Garden Tractor Price, Specs, Review & Attachments 2024

John Deere 420 Price, Specs, Review, Horsepower, Serial Numbers, Attachments, Weight 

The John Deere 420, a versatile tractor model manufactured by John Deere, is well-suited for both farm and garden use, making it ideal for a wide range of tasks.

Back in 1958, the original price of the John Deere 420 stood at $2300. Its sales literature often referred to it as the “Swiss Army Knife” of tractors, owing to its numerous possible configurations.

Manufactured in Horicon, Wisconsin, USA, the John Deere 420 was equipped with a powerful 20HP Onan 781cc 2-cylinder gasoline engine and had a fuel tank capacity of 6.5 gallons (24.6 liters).

The tractor featured a hydrostatic transmission and operated as a two-wheel drive with a mechanical rear differential lock.

The open operator station of the John Deere 420 was complemented by differential mechanical drum brakes. In terms of lifting capacity, it could handle up to 640 lbs (290 kg) at the rear.

Moreover, it boasted an independent rear PTO with an electric clutch, running at 2000 RPM, and a front PTO with an independent electric clutch, operating at 3400 RPM.

The wheelbase of the John Deere 420 measured 52 inches (132 cm), and its weight amounted to 993 lbs (450 kg).

If you are interested in further details, such as the John Deere 420 Garden Tractor Price, Parts Specs, Reviews, Serial Numbers & Images, you may want to explore additional resources in the English language.

John Deere 420 Price 

John Deere 420 Garden Tractor Price, Specs, Review & Attachments

John Deere 420  Original Price: $7,700 (1992 )

John Deere 420 Serial Number

YearsSerial Number

John Deere 420 Specs

John Deere 420 Engine

EngineOnan B48G gasoline 2-cylinder air-cooled opposed-twin
Displacement781 cc
47.7 ci
Bore/Stroke3.25×2.875 inches
83 x 73 mm
Power20 hp
14.9 kW
Air cleanerfoam and paper
Rated RPM3500
Idle RPM1000-3450
Starter volts12


Chassis4×2 2WD
Differential lockmechanical rear
Brakesdifferential mechanical drum
CabOpen operator station.


Rear PTOindependent
Rear RPM2000
Front PTOindependent
Front RPM3400

John Deere 420 Transmission

TransmissionSundstrand 90
Typeshaft-driven hydrostatic
Gearsinfinite forward and reverse (2-range)
Oil Capacity7.5 qts
7.1 L
Oil type
 JD Hy-Gard

John Deere 420 Dimensions

Wheelbase52 inches
132 cm
Length77 inches
195 cm
Width51.5 inches
130 cm
Height47.5 inches
120 cm
Shipping weight993 lbs
450 kg
Front tread36 inches
91 cm
Rear tread32/38.6 inches
81/98 cm


Ag front4.80×4.00-8
Ag rear23×10.50-12
Lawn/turf front18×8.50-8
Lawn/turf rear26×12.00-12


Charging systemalternator
Charging amps20
Battery volts12
Battery GroupBCI 22F

John Deere 420 Attachments

Attachment overview
50″ mid-mount mower deck
60″ mid-mount mower deck
Front-end loader


Loader weight500 lbs
226 kg
Height (to pin)73 inches
185 cm
Clearance dumped a bucket53.25 inches
135 cm
Dump reach22 inches
55 cm
Dump angle50°
Reach ground43.75 inches
111 cm
Rollback angle20°
Breakout force (bucket)725 lbs
328 kg
Lift to full height (at pin)500 lbs
226 kg
Bucket capacity0.21 cu yd
0.2 cu m
 0.24 cu yd
0.2 cu m
Bucket width45,54 inches
11567 cm

John Deere 420 Review  

The John Deere 420 is a garden tractor that rolled off the production line from 1986 to 2003. It’s powered by a 20-horsepower Onan P220G engine and comes equipped with a hydrostatic transmission, shaft-driven attachments, and power steering.

This versatile machine offers a range of attachments, including a 60-inch mowing deck, a snow blower, and a utility blade.

Renowned for its durability, reliability, and robust performance, the 420 is also relatively straightforward to maintain and repair.

Consequently, it’s a favored choice among homeowners and small businesses tasked with managing large lawns and properties. For a full review, please check this YouTube video Here.

John Deere Official website – Click Here

John Deere 420 Problems

As with any tractor or piece of machinery, the John Deere 420 may experience certain problems over time. Here are some common issues that owners of the John Deere 420 might encounter:

1. Starting Difficulties: Trouble starting the tractor could be caused by issues with the battery, starter motor, ignition system, or fuel delivery.

2. Engine Troubles: Engine-related problems may include rough idling, lack of power, excessive smoke, or oil leaks. These issues can result from worn-out components, fuel system problems, or engine wear.

3. Transmission and Clutch Issues: Tractors with manual transmissions might face difficulties shifting gears, clutch slippage, or transmission noise.

4. Electrical System Malfunctions: Wiring problems, blown fuses, or faulty electrical components can lead to issues with lights, gauges, and other electrical systems.

5. Hydraulic System Problems: The John Deere 420 may experience hydraulic system leaks or unresponsiveness, impacting the operation of loader attachments or the three-point hitch.

6. Steering Challenges: Problems with the steering system, such as loose steering or misaligned steering wheels, can affect the tractor’s maneuverability.

7. Braking Concerns: Brake problems, such as ineffective braking or brake pedal issues, can pose safety risks and should be addressed promptly.

8. Tire and Wheel Troubles: Flat tires, tire wear, or misaligned wheels can affect the tractor’s stability and traction.

9. PTO and Implement Issues: Problems with the Power Take-Off (PTO) system or attachment implements may arise, affecting their proper functioning.

10. Cooling System Malfunctions: Issues with the cooling system, such as overheating, could be caused by clogged radiators or malfunctioning water pumps.

Regular maintenance and timely repairs are essential to keep the John Deere 420 in good working condition and prevent these problems.

If you encounter significant issues or are unsure about how to troubleshoot or repair the tractor, seeking assistance from experienced mechanics or John Deere service centers is recommended.

Proper care and attention will help ensure the tractor’s reliability and longevity on the farm.

Also, Check Here :

Final Words

What is the engine capacity of the John Deere 420 Garden Tractor?

The John Deere 420 Garden Tractor is equipped with a 20HP Onan 2-cylinder gas engine.

Does the John Deere 420 Garden Tractor have power steering?

Yes, some versions of the John Deere 420 Garden Tractor have power steering, which makes it easy to turn.

Is there a service manual available for the John Deere 420 Garden Tractor?

Yes, a service manual for the John Deere 420 Garden Tractor is available.

Can I use attachments with the John Deere 420 Garden Tractor?

Yes, the John Deere 420 Garden Tractor is compatible with various attachments such as a 60″ mower and a 3-point hitch.

What is the common issue with the Onan P220 engine in the John Deere 420 Garden Tractor?

A common issue with the Onan P220 engine is a broken rod.