John Deere 5020 Tractor Parts
5020 parts and accessories
The John Deere 5020, manufactured from 1965 to 1972, was a powerful workhorse known for its robust construction and ability to handle demanding tasks. Powered by a 135 horsepower diesel engine and offering a substantial PTO horsepower, the 5020 became a popular choice among farmers for tillage, planting, and other heavy-duty operations. This tractor helped define a generation of agricultural equipment.
The John Deere 5020 was introduced in 1965 as a larger, more powerful tractor option within the John Deere lineup, filling the need for increased horsepower and capability. Production continued until 1972. The 5020 was equipped with a John Deere 404 cubic inch, 6-cylinder diesel engine producing approximately 135 horsepower. This engine delivered ample power for a variety of demanding farm tasks. The transmission was a Syncro-Range transmission, offering 8 forward and 2 reverse speeds. The PTO delivered around 115 horsepower at 1000 RPM. The hydraulic system provided a flow rate of approximately 22 GPM, with typically two remote valves. The 3-point hitch was a Category II, offering a lift capacity of around 5,500 lbs. Common applications included row crop farming, hay production, and tillage operations. What distinguished the 5020 from other John Deere models of the time was its larger size, heavier frame, and increased horsepower, making it suitable for larger farms and more demanding tasks than its smaller counterparts, such as the 4020.
Specifications
| Engine | John Deere 404 ci Diesel 135 HP |
|---|---|
| PTO HP | 115 HP @ 1000 RPM |
| Transmission | Syncro-Range 8 forward, 2 reverse |
| Hydraulics | 22 GPM, 2 remotes |
| 3-Point Hitch | Category II, 5,500 lbs lift capacity |
| Fuel Capacity | 48 gallons |
| Weight | 11,200 lbs |
| Years Produced | 1965-1972 |
Maintenance Tips
- Engine Oil & Filter: Change engine oil and filter every 250 hours using a high-quality diesel engine oil that meets John Deere specifications.
- Hydraulic System: Check hydraulic fluid levels regularly and replace the hydraulic filter every 500 hours to maintain optimal performance and prevent contamination.
- Fuel System: Use clean, high-quality diesel fuel and replace fuel filters regularly, especially before periods of extended storage, to prevent fuel system issues.
- Seasonal Storage: Before storing the tractor for the winter, drain the fuel tank and add a fuel stabilizer, grease all fittings, and disconnect the battery to prevent corrosion and ensure easy starting in the spring.
History & Background
The John Deere 5020 was introduced in 1965 as a response to the growing demand for larger, more powerful tractors in the agricultural sector. While the 5020 didn't undergo major redesigns during its production run, it solidified John Deere's position as a leader in large-scale farming equipment, paving the way for future generations of high-horsepower tractors.
Frequently Asked Questions
What engine is in the John Deere 5020?
The John Deere 5020 is powered by a John Deere 404 cubic inch, 6-cylinder diesel engine, producing approximately 135 horsepower.
What is the PTO horsepower on a 5020?
The PTO horsepower on the John Deere 5020 is approximately 115 horsepower, running at 1000 RPM.
What oil filter fits the 5020?
The John Deere 5020 uses a John Deere oil filter part number AR51744. Common cross-references include Wix 51794 and Fram PH3600.
What are common parts needed for the 5020?
Common parts needed for the John Deere 5020 include engine oil filters, fuel filters, hydraulic filters, fan belts, hydraulic cylinder seal kits, steering cylinder repair kits, and clutch components.

R26871 - Snap Ring
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R21722 - Durometer 90 (5/Pack) .139" Thick O-Ring; .796" ID X 1.074" OD
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P46051 - Durometer 70 (10/Pack) .103" Thick O-Ring; .424" ID X .630" OD
SKU: P46051
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B3690R - Durometer 75 (5/Pack) O-Ring; 1.859" ID X 2.137" OD X .139" Thick
SKU: B3690R
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B2762R - Durometer 70 (10/Pack) .139" Thick O-Ring; .734" ID X 1.012" OD
SKU: B2762R
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A5598R - Durometer 70 (2/Pack) .210" Thick O-Ring; 3.600" ID X 4.020" OD
SKU: A5598R
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A3190R - Durometer 90 (5/Pack) .130" Thick O-Ring; .674" ID X .880" OD
SKU: A3190R
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2785-P - Tapered Roller Bearing Cone
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WL7610 - Trapezoid LED Light Assembly
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WL7606 - Flood LED Light Assembly
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WL4460 - Hi / Low LED Sealed Beam
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WL3005 - Combo LED Sealed Beam
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WL2116 - 4 1/2" Diameter Trapezoid LED Sealed Beam
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WL1116 - 4 1/2" Diameter Flood LED Sealed Beam
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RE336112 - Trapezoid Worklight; Round LED Lamp
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RE336111 - Flood Worklight; LED Lamp
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R42689 - Lamp Bezel
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AR78825LED - Red LED Tail / Warning Light
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AR77324 - Sealed Beam; Rear Work Lamp (12V) Floodlamp
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AR50580 - Warning Lamp
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AR48723 - Sealed Beam Bulb (12 Volt)
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AR42591 - Sealed Beam Bulb (12 Volt)
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AR33479 - Dash (12 volt) Light
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AR21059 - Sealed Beam Bulb (12 Volt)
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