John Deere 7420 Tractor Parts
7420 parts and accessories
The John Deere 7420 tractor, manufactured from 2003 to 2007, became a popular choice for farmers due to its versatility and reliable performance. Powered by a 125 engine horsepower John Deere PowerTech diesel engine, this tractor delivered robust power for a variety of tasks. With a PTO horsepower of around 105, it efficiently handled implements for planting, cultivating, and harvesting.
The John Deere 7420 was part of the John Deere 7020 series, introduced in 2003 as an upgrade to previous models, and produced until 2007. It featured the John Deere PowerTech 6.8L 6-cylinder diesel engine, producing approximately 125 engine horsepower. This engine was known for its fuel efficiency and durability. The transmission options included a PowrQuad transmission with various speed configurations, allowing operators to tailor the tractor's performance to specific tasks. The PTO horsepower was around 105 hp, available in both 540 and 1000 RPM configurations. Hydraulic capacity was typically around 29 GPM with options for multiple remote valves. The 3-point hitch was a Category II/III, offering ample lift capacity for a wide range of implements. The 7420 was commonly used for row crop operations, hay production, livestock management, and tillage applications. Compared to other models in the 7020 series, the 7420 offered a balance of power and maneuverability, making it a versatile choice for medium-sized farms.
Specifications
| Engine | John Deere PowerTech 6.8L 125 HP Diesel |
|---|---|
| PTO HP | 105 HP @ 540/1000 RPM |
| Transmission | PowrQuad (Various Speed Configurations) |
| Hydraulics | 29 GPM, Up to 4 Remotes |
| 3-Point Hitch | Category II/III, 6724 lbs Lift Capacity |
| Fuel Capacity | 58 gallons |
| Weight | 13,200 lbs |
| Years Produced | 2003-2007 |
Maintenance Tips
- Change engine oil and filter every 250 hours of operation using high-quality oil meeting John Deere specifications. Regular oil changes are crucial for engine longevity.
- Inspect and maintain hydraulic fluid levels regularly, and replace the hydraulic filter according to the manufacturer's recommendations. Contaminated hydraulic fluid can damage components.
- Use clean, high-quality fuel and replace the fuel filter at recommended intervals to prevent fuel system issues. Drain any water accumulation from the fuel tank periodically.
- Before seasonal storage, thoroughly clean the tractor, service all filters and fluids, and protect exposed metal parts to prevent rust and corrosion.
History & Background
The John Deere 7420 was introduced in 2003 as part of the updated 7020 series, replacing earlier models with improved engine technology and comfort features. It represented a significant step forward in tractor design, offering farmers enhanced performance and versatility for various agricultural tasks. This model contributed to John Deere's reputation for producing reliable and efficient farm equipment.
Frequently Asked Questions
What engine is in the John Deere 7420?
The John Deere 7420 is powered by a John Deere PowerTech 6.8L 6-cylinder diesel engine producing approximately 125 engine horsepower.
What is the PTO horsepower on a 7420?
The PTO horsepower on the John Deere 7420 is approximately 105 hp, available in both 540 and 1000 RPM configurations.
What oil filter fits the 7420?
The John Deere 7420 typically uses a John Deere oil filter part number RE504836 or a similar cross-reference such as a Wix 57202 or a Baldwin B7349.
What are common parts needed for the 7420?
Common parts needed for the John Deere 7420 include engine oil filters, fuel filters, hydraulic filters, air filters, fan belts, hydraulic seals, steering components like tie rod ends, clutch parts, and PTO shaft components.

R39322 - Clutch / Brake Sealing Ring
SKU: R39322
130 in stock

R337522 - Clutch; Planetary Brake Plate
SKU: R337522
9 in stock

R333928 - Brake Piston
SKU: R333928
22 in stock

R33026 - Rear Axle Shaft Seal
SKU: R33026
554 in stock

R319336 - Front Valve Housing Gasket
SKU: R319336
183 in stock

R216293 - Clutch; Planetary Brake Plate
SKU: R216293
29 in stock

R216291 - Clutch; Planetary Brake Plate
SKU: R216291
7 in stock

R209938 - Planetary Brake; B1 & B2 (PowrQuad Transmission) Plate
SKU: R209938
101 in stock

R161742 - Ring; Transmission Oil Pump. 15 MM Gear
SKU: R161742
59 in stock

R158521 - Planetary Brake Housing (6/Pack) O-Ring
SKU: R158521
138 in stock

R126399 - I.D. Seal; Brake Piston
SKU: R126399
4 in stock

R125128 - Brake Plate
SKU: R125128
6 in stock

R124438 - Reverse Brake Housing Bushing
SKU: R124438
331 in stock

R122850 - Brake Piston O.D. Seal
SKU: R122850
Out of stock

R116894 - Clutch Plate
SKU: R116894
30 in stock
JD8159 - BEARING
SKU: JD8159
40 in stock

AR94516 - Direct Drive Clutch Disc
SKU: AR94516
1086 in stock

AR51564 - Rear Axle Seal
SKU: AR51564
36 in stock

AL165074 - W/O Air Vent Cap; Transmission Oil Filler
SKU: AL165074
273 in stock

RE12180 - PTO / Eng Speed Sensor; Magnetic Pickup
SKU: RE12180
126 in stock

R98063 - Intake Valve (Std) Insert
SKU: R98063
90 in stock

R98062 - Intake (Std) Valve
SKU: R98062
76 in stock

R97490 - Intake (.015") Valve
SKU: R97490
77 in stock

R97344 - Pan Gasket
SKU: R97344
56 in stock
