Row Crop tractorsSpec sheet
John Deere 7420
The John Deere 7420 is a powerful row crop tractor made from 2003 to 2007. It has a 4x2 2WD chassis and power steering, making it easy to handle in the fields. The tractor is big, measuring 203.3 inches long, 96 inches wide, and 114.1 inches tall. It weighs 13,280 pounds, which is above average for tractors of its class. Under the hood, the 7420 has a John Deere PowerTech 6068HF475 engine. This diesel engine has 6 cylinders and is turbocharged for extra power. It produces 135 horsepower, which is about average for tractors in its category. The engine size is above average at 414 cubic inches. The tractor has a partial power shift transmission with 16 forward and 16 reverse gears, giving farmers lots of options for different tasks. It also has a strong hitch that can lift up to 8,959.6 pounds, which is very high compared to other tractors. The John Deere 7420 comes with some nice features for comfort and work. It has a ComfortGard Cab with air conditioning to keep farmers cool on hot days. The tractor has both 540 and 1000 rpm PTO speeds for running different equipment. It also has a closed-center hydraulic system, which is good for heavy lifting and using hydraulic tools. With its mix of power, comfort, and versatility, the 7420 is a solid choice for many farming tasks.
ManufacturerJohn DeerePower135 hp(100.7 kW)Class100–150 HP tractors →Engine6-cylinderTransmissionPartial power shift
Key specifications
- Category
- Row Crop
- Engine power
- 135hp
- Operating weight
- 13,280 lb
- Transmission
- Partial power shift
Category comparison
7420 compared with its category
vs. Row Crop medianDistribution
Engine Power (hp)
All recorded Row Crop tractors
135 hp · 49th
This model
12
Median 138 hp
283
This modelRow Crop tractorsMediann = 1,206
The 7420 ranks at the 49th percentile for engine power among recorded row crop tractors.
Overview
About the John Deere 7420
The John Deere 7420 is a powerful row crop tractor made from 2003 to 2007. It has a 4x2 2WD chassis and power steering, making it easy to handle in the fields. The tractor is big, measuring 203.3 inches long, 96 inches wide, and 114.1 inches tall. It weighs 13,280 pounds, which is above average for tractors of its class. Under the hood, the 7420 has a John Deere PowerTech 6068HF475 engine. This diesel engine has 6 cylinders and is turbocharged for extra power. It produces 135 horsepower, which is about average for tractors in its category. The engine size is above average at 414 cubic inches. The tractor has a partial power shift transmission with 16 forward and 16 reverse gears, giving farmers lots of options for different tasks. It also has a strong hitch that can lift up to 8,959.6 pounds, which is very high compared to other tractors. The John Deere 7420 comes with some nice features for comfort and work. It has a ComfortGard Cab with air conditioning to keep farmers cool on hot days. The tractor has both 540 and 1000 rpm PTO speeds for running different equipment. It also has a closed-center hydraulic system, which is good for heavy lifting and using hydraulic tools. With its mix of power, comfort, and versatility, the 7420 is a solid choice for many farming tasks.
Full specifications
Recorded specifications
General
| Manufacturer | John Deere |
|---|---|
| Model | 7420 |
| Category | Row Crop tractor |
| Type | 4x2 2WD |
| Years built | 2003–2007 |
| Operating weight | 13,280lb(6,024 kg) |
Engine
| Make | John Deere |
|---|---|
| Model | PowerTech 6068HF475 |
| Power | 135hp(100.7 kW) |
| Cylinders | 6 |
| Displacement | 414ci(6.78 L) |
| Bore | 4.17in(105.9 mm) |
| Stroke | 5in(127 mm) |
Transmission
| Type | Partial power shift |
|---|---|
| Forward gears | 16 |
| Reverse gears | 16 |
Chassis & drive
| Chassis | 4x2 2WD |
|---|---|
| Steering | Power |
| Brakes | Hydraulic wet disc |
| Cab | ComfortGard Cab (standard) with air-conditioning |
Hydraulics
| Type | Closed-center PFC |
|---|
Power take-off
| Rear PTO | Independent with electro-hydraulic clutch |
|---|---|
| PTO speed | 540rpm |
Dimensions
| Length | 203.3in(5,164 mm) |
|---|---|
| Width | 96in(2,438 mm) |
| Height | 114.1in(2,898 mm) |
| Operating weight | 13,280lb(6,024 kg) |
Capacities
| Cooling system | 7.4gal(28.01 L) |
|---|
Closest alternatives
7420 compared with the nearest models by horsepower
The closest row crop models to the John Deere 7420 by rated horsepower are the John Deere 7510 and the John Deere 4620. The John Deere 7510 matches it on rated power. The John Deere 4620 matches it on rated power and weighs 1,650 lb more, at 111 lb per horsepower against 98 lb. It entered production in 1971, 32 years before the 7420.
| Spec | John Deere 7420 | John Deere 7510 | John Deere 4620 |
|---|---|---|---|
| Engine power | 135 hp100.7 kW | 135 hp100.7 kW | 135 hp100.7 kW |
| Operating weight | 13,280 lb6,024 kg | - | 14,925 lb6,770 kg |
| Weight per hp | 98 lb/hp60 kg/kW | - | 111 lb/hp67 kg/kW |
| Displacement | 414 ci6.78 L | 415 ci6.8 L | 404 ci6.62 L |
| Cylinders | 6 | 6 | 6 |
| Transmission | Partial power shift | Fully synchronized / Partial power shift | Partially synchronized |
| Years built | 2003-2007 | 1999-2002 | 1971-1972 |
Calculators
Calculators for the 7420
PTO power
About 112 to 122 PTO hp
Estimated from the 135 hp engine rating. The calculator also estimates drawbar power by surface.
Implement sizing
Implements a 135 hp tractor can run
Maximum size is about a 16 ft rotary cutter or a 13.5 ft tiller. The calculator also sizes discs, plows and balers.
Ballast
114 lb per PTO hp as listed
Heavy draft work calls for 120 to 135 lb/hp. The calculator gives the ballast to add.
Units
135 hp is 100.7 kW
The converter gives kW and metric PS values, as used on European spec sheets.
Parts and manuals
Parts and manuals for the John Deere 7420
Each link opens a retailer search keyed to the fields recorded for this model. Confirm fitment against the serial plate before ordering.
Filters
- Oil filter for the John Deere PowerTech 6068HF475Amazon
Fits the John Deere PowerTech 6068HF475 6-cylinder diesel engine listed for this model. Confirm the part number against the engine serial plate.
- Air filter for the John Deere PowerTech 6068HF475Amazon
Fits the John Deere PowerTech 6068HF475 6-cylinder diesel engine listed for this model. Confirm the part number against the engine serial plate.
- Fuel filter for the John Deere PowerTech 6068HF475Amazon
Fits the John Deere PowerTech 6068HF475 6-cylinder diesel engine listed for this model. Confirm the part number against the engine serial plate.
- Hydraulic filter for the John Deere PowerTech 6068HF475Amazon
Fits the John Deere PowerTech 6068HF475 6-cylinder diesel engine listed for this model. Confirm the part number against the engine serial plate.
Manuals
- John Deere 7420 service and repair manualseManualOnline
Digital manuals. Built 2003 to 2007. Check the serial number range on the listing.
- John Deere 7420 operator's manualAmazon
Printed and reprint manuals. Built 2003 to 2007. Check the serial number range on the listing.
- John Deere 7420 service manualAmazon
Shop and repair manuals for this model.
Links in this section go to retailers. A purchase through them earns this site a commission at no extra cost to the buyer. As an Amazon Associate, Heavy Equipment Specs earns from qualifying purchases. Affiliate disclosure
Category medians
7420 vs. Row Crop median
John Deere 7420 compared with other Row Crop tractors
| Spec | This model | Row Crop median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 135 hp | 138 hp | -2% | 49th |
| Engine Displacement | 414 ci | 391 ci | +6% | 66th |
| Cylinders | 6 | 6 | at median | 50th |
| Forward Gears | 16 | 16 | at median | 50th |
| Operating Weight | 13,280 lb | 12,307 lb | +8% | 58th |
| Length | 203 in | 180 in | +13% | 79th |
| Width | 96 in | 91.2 in | +5% | 70th |
| Height | 114 in | 114 in | +1% | 51st |
| 3-Point Hitch Capacity | 8,960 lb | 11,023 lb | -19% | 38th |
Medians and percentiles are calculated from the row crop tractors in the database that have a recorded value for each specification (sample size 279–1,417 models).
Same manufacturer
Other John Deere models
Other manufacturers
Models with similar horsepower
Gallery
John Deere 7420 photos
FAQ
Frequently asked questions
What years was the John Deere 7420 manufactured?
Production of the John Deere 7420 ran from 2003 through 2007.
What type of transmission does the John Deere 7420 have?
The John Deere 7420 uses a Partial power shift transmission offering 16 forward gears.
What type of hydraulic system does the John Deere 7420 use?
Hydraulics on the John Deere 7420 are Closed-center PFC.
What hitch category is the John Deere 7420?
The John Deere 7420 uses a Category Category 3 hitch with a lift capacity of 8,959.6 lb.
How powerful is the John Deere 7420?
The John Deere 7420 has an engine power output of 135 hp. It is powered by a 6-cylinder engine displacing 414 ci.
What is the working weight of the John Deere 7420?
The operating weight of the John Deere 7420 is approximately 13,280 lb.
What routine service does the John Deere 7420 need?
Regular maintenance for the John Deere 7420 includes checking and changing engine oil, hydraulic fluid, and filters, plus routine inspections as recommended in the owner's manual. Always follow the manufacturer's maintenance schedule for specific intervals and procedures.