| Manufacturer |
John Deere |
| Price |
2,300(USD) |
| Model |
420 |
| Equipment Type |
Utility Tractors |
| Factory |
Dubuque, Iowa, USA |
ENGINES OVERVIEW
The John Deere 420 features a versatile 1.9L two-cylinder engine available in gasoline, all-fuel, and LP gas variants, allowing for flexibility in fuel choice and enhanced adaptability for various agricultural conditions. An advantage of the all-fuel option is its ability to run on multiple types of fuel, however, it may experience a reduction in power output compared to gasoline. Optimal for small to medium-sized farms, this tractor can effectively perform tasks like plowing, tilling, and hauling, depending on the fuel type selected for operational efficiency.
| Description |
John Deere 1.9L 2-cyl gasoline John Deere 1.9L 2-cyl all-fuel John Deere 1.9L 2-cyl LP gas |
ENGINE DETAIL 1
The John Deere 420 tractor features a 1.9L gasoline 2-cylinder engine with a 7:1 compression ratio, providing moderate power output suitable for light agricultural tasks. Its oil bath air cleaner improves engine longevity by minimizing dust ingress, although it may require more maintenance than a dry element filter. At a rated RPM of 1850, this tractor is designed for efficient low-speed operations, making it ideal for farming applications like cultivating, mowing, or light hauling, although its power may be insufficient for heavier-duty tasks.
| Description |
John Deere gasoline 2-cylinder 4-valve liquid-cooled |
| Displacemen |
113ci / 1.9L |
| Bore/Strok |
4.25x4.00inches / 108x 102mm |
| Air cleane |
oil bath |
| Compressio |
7:1 |
| Rated RP |
1850 |
| Firing orde |
1-2 |
| Starter volt |
6 |
| Coolant capacit |
11qts / 10.4L |
ENGINE DETAIL 2
The John Deere 420 tractor features a robust all-fuel 2-cylinder engine with a liquid-cooled system, optimizing thermal efficiency for agricultural tasks. With a displacement of 113 ci (1.9L), a compression ratio of 5.15:1, and a rated RPM of 1850, it delivers sufficient torque for moderate tillage and hauling. Its oil-bath air cleaner enhances engine longevity, though the 6V starter may pose challenges in extremely cold conditions, necessitating careful maintenance for reliable performance.
| Description |
John Deere all-fuel 2-cylinder 4-valve liquid-cooled |
| Displacemen |
113ci / 1.9L |
| Bore/Strok |
4.25x4.00inches / 108x 102mm |
| Air cleane |
oil bath |
| Compressio |
5.15:1 |
| Rated RP |
1850 |
| Firing orde |
1-2 |
| Starter volt |
6 |
ENGINE DETAIL 3
The John Deere 420 features a liquid-cooled, LP gas 2-cylinder engine with a displacement of 1.9L, providing efficient fuel consumption and lower emissions compared to gasoline counterparts. Its 4-valve design enhances airflow and performance, while the 1850 RPM rated speed balances power and engine longevity, although limited RPM may affect high-demand tasks. Challenges may include sourcing parts for the 6-volt starter system and the maintenance of the oil bath air cleaner, which requires regular servicing to ensure optimal engine efficiency.
| Description |
John Deere LP gas 2-cylinder 4-valve liquid-cooled |
| Displacemen |
113ci / 1.9L |
| Bore/Strok |
4.25x4.00inches / 108x 102mm |
| Air cleane |
oil bath |
| Rated RP |
1850 |
| Firing orde |
1-2 |
| Starter volt |
6 |
JOHN DEERE 420 ENGINES
The John Deere 420 features a compact 1.9L 2-cylinder engine available in gasoline, all-fuel, and LP gas configurations, offering versatility depending on fuel availability and operational preference. The fuel tank capacities vary, with a 10.5-gallon tank for gasoline and a larger 20-gallon tank for LP gas, providing extended operational range for diverse tasks. This adaptability can be advantageous in agricultural scenarios where fuel type and consumption efficiency are critical for productivity; however, maintenance may be more complex with multiple fuel options.
| Description |
John Deere 1.9L 2-cyl gasoline John Deere 1.9L 2-cyl all-fuel John Deere 1.9L 2-cyl LP gas |
| Fuel tan |
10.5gal / 39.7L 20gal (LP gas) / 75.7L |
TRANSMISSIONS OVERVIEW
The John Deere 420 tractor features both a 4-speed and a 5-speed unsynchronized transmission, allowing for flexibility in various operating conditions. The unsynchronized design may present challenges in shifting without grinding gears, requiring skilled operation. However, the multiple gear options can enhance performance in diverse applications, making it advantageous for tasks ranging from light hauling to moderate fieldwork.
| Description |
4-speed unsynchronized gear 5-speed unsynchronized gear |
TRANSMISSION 1
The John Deere 420 tractor features an unsynchronized gear transmission with 4 forward and 1 reverse gear, which may present challenges in smooth shifting, particularly under load. However, the simplicity of this design offers advantages in maintenance and reliability, making it suitable for basic farming operations. When working in less demanding applications like small-scale tillage or yard work, the tractor's straightforward operation can be beneficial for novice operators.
| Manufacture |
John Deere |
| Typ |
unsynchronized gear |
| Gear |
4 forward and 1 reverse |
TRANSMISSION 2
The John Deere 420 features an unsynchronized gear transmission with 5 forward and 1 reverse speed, which can provide straightforward operation for basic tasks but may hinder smooth shifting, particularly under load. Its simplicity in design is advantageous for maintenance and reliability, making it suitable for light agricultural work or small-scale farming. However, operators may face challenges with abrupt gear changes that require careful throttle management, particularly on inclines or uneven terrain.
| Manufacture |
John Deere |
| Typ |
unsynchronized gear |
| Gear |
5 forward and 1 reverse |
JOHN DEERE 420 TRANSMISSIONS
The John Deere 420 tractor features a 4-speed unsynchronized gear and an optional 5-speed unsynchronized gear, which provides basic versatility for different field speeds, although the lack of synchronization may challenge operators during gear changes, especially under load. The unsynchronized design can lead to increased wear if not managed properly, but it offers mechanical simplicity and lower repair costs. Ideal for small-scale farming or specialized tasks, operators should be proficient in gear handling to maximize performance and minimize operational risks.
| Description |
4-speed unsynchronized gear 5-speed unsynchronized gear |
MECHANICAL
The John Deere 420 tractor features a two-wheel drive system, primarily suitable for lighter agricultural tasks and less challenging terrain. The optional power steering enhances maneuverability, improving operator comfort during prolonged use. However, the open operator station may expose the operator to harsh weather conditions, which can be a drawback in adverse climates.
| Description |
Two-wheel drive, Open operator station |
| Steerin |
manual/power optional |
TRACTOR HITCH
POWER TAKE-OFF (PTO)
| Rear PT |
transmission/live *Live PTO optional with the 5-speed transmission |
| Rear RP |
540 |
JOHN DEERE 420 TIRES
The John Deere 420 tractor features adjustable agricultural front tire sizes ranging from 5.00-15 to 7.50-10, allowing for adaptable traction based on the terrain and crop type. The rear tire options extend from 9-24 to 11-38 for both standard and hi-crop configurations, making it versatile for various farming applications including row cropping and field work. Pros include enhanced stability and weight distribution; however, selecting inappropriate tire sizes may lead to challenges in traction and soil compaction.
| Ag fron |
5.00-15/6.00-16/7.50-16/7.50-10 (single) |
| Ag rea |
9-24/10-24 / 11-24/11-26 / 12-26/13-26 / 12-28/10-34 / 10-38 (hi-crop)/11-38 (hi-crop) |
DIMENSIONS & TIRES
The John Deere 420 tractor, with a weight of 3,250 lbs (1,474 kg), offers a favorable power-to-weight ratio for various agricultural tasks, allowing for effective maneuverability and stability on diverse terrains. Its front tire size of 5.00-15 facilitates good steering response, while the rear tire size of 9-24 provides enhanced traction and load-bearing capability, making it suitable for plowing or towing tasks. However, lower weight may limit its performance in extremely rugged conditions, indicating that it might struggle with heavy loads or steep inclines.
| Weigh |
3250lbs / 1474kg |
| Front tir |
5.00-15 |
| Rear tir |
9-24 |
420 SERIAL NUMBERS
420 SERIAL LOCATION
| Description |
Serial number plate on the left side of tractor, on the clutch housing |
ELECTRICAL
| Groun |
positive |
| Battery volt |
6 |
