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.

RE55512 - Piston
SKU: RE55512
7 in stock

RE532841 - Upper Gasket Set
SKU: RE532841
7 in stock

RE531436 - Fuel Injector
SKU: RE531436
271 in stock

RE527833 - Complete Overhaul Gasket Set
SKU: RE527833
19 in stock

RE519696 - Water In Fuel Sensor
SKU: RE519696
280 in stock

RE516553 - Fuel Filter Seal Kit
SKU: RE516553
391 in stock

RE51650 - Sediment Bowl
SKU: RE51650
333 in stock

RE516335 - Pressure Relief Valve
SKU: RE516335
168 in stock

RE515785 - Straight Nose Crankshaft
SKU: RE515785
4 in stock

RE515636 - Engine Restrictor
SKU: RE515636
Out of stock

RE515037 - Piston
SKU: RE515037
42 in stock

RE509530 - Lift Fuel Pump
SKU: RE509530
24 in stock

RE508317 - W/ Adjusting Screw Rocker Arm
SKU: RE508317
Out of stock

RE505921 - Taper Nose Crankshaft
SKU: RE505921
12 in stock

RE504914 - Engine Oil Pump
SKU: RE504914
29 in stock

RE503242 - Temperature Switch
SKU: RE503242
262 in stock

RE503208 - Turbo Oil Inlet Hose
SKU: RE503208
232 in stock

RE502740 - Engine Oil Dipstick
SKU: RE502740
33 in stock

RE501456 - Overhaul without Seals Gasket Set
SKU: RE501456
3 in stock

RE500608 - Fracture Type Connecting Rod
SKU: RE500608
10 in stock

RE48818 - Piston Rings
SKU: RE48818
29 in stock

RE48786 - Pencil Injector
SKU: RE48786
Out of stock

RE48419 - Temperature Sensor
SKU: RE48419
141 in stock

RE32011 - Fuel Injection Nozzle Seal O-Ring Kit
SKU: RE32011
392 in stock
