John Deere 7720 Tractor Parts

7720 parts and accessories

The John Deere 7720 tractor, manufactured from 1973 to 1977, was a popular choice for farmers needing a powerful and reliable machine. Powered by a robust John Deere diesel engine producing around 110 horsepower, the 7720 offered a PTO horsepower of approximately 95. Its durable construction and versatile capabilities made it a staple in fields across the country, known for getting the job done.

The John Deere 7720 was introduced as part of the '20 Series' tractors, building upon the success of its predecessors. Production ran from 1973 to 1977. It features a John Deere 6-cylinder diesel engine, delivering approximately 110 engine horsepower. The engine's displacement is around 404 cubic inches. The transmission is typically a Quad-Range transmission offering 16 forward and 6 reverse speeds, providing a wide range of gear options for various field conditions. PTO horsepower is around 95, with both 540 and 1000 RPM PTO options available. The hydraulic system provides a flow rate of approximately 26 gallons per minute, with two remote valves available. The 3-point hitch is a Category II, offering a lift capacity of around 5,800 lbs. The 7720 was commonly used in row crop applications, hay production, livestock operations, and tillage work. Compared to smaller models in the John Deere lineup, the 7720 offered increased horsepower and hydraulic capacity, making it suitable for heavier implements and larger acreages. Compared to larger models, the 7720 offered a balance of power and maneuverability.

Specifications

Engine	John Deere 404 CID 110 HP Diesel
PTO HP	95 HP @ 540/1000 RPM
Transmission	Quad-Range 16 Forward, 6 Reverse
Hydraulics	26 GPM, 2 remotes
3-Point Hitch	Category II, 5800 lbs lift capacity
Fuel Capacity	48 gallons
Weight	11,200 lbs
Years Produced	1973-1977

Maintenance Tips

Engine Oil & Filter: Change engine oil and filter every 250 hours using the recommended John Deere oil type and filter. Regular changes prevent excessive wear.
Hydraulic System: Check hydraulic fluid levels regularly and change the hydraulic filter every 500 hours. Use only John Deere Hy-Gard fluid to ensure optimal performance and prevent damage.
Fuel System: Regularly inspect fuel lines for leaks and replace the fuel filter every 250 hours. Use clean, high-quality diesel fuel and consider using a fuel additive during cold weather to prevent gelling.
Seasonal Storage: Before storing the tractor for the off-season, fill the fuel tank to prevent condensation, change the engine oil, and grease all fittings. Disconnect the battery and store it in a cool, dry place.

History & Background

The John Deere 7720 was introduced in 1973 as part of the '20 Series', representing a significant advancement in tractor technology for its time. While it did not undergo major redesigns during its production run, its robust design and reliable performance contributed to its enduring popularity. It solidified John Deere's reputation for building dependable and productive agricultural machinery.

Frequently Asked Questions

What engine is in the John Deere 7720?

The John Deere 7720 is powered by a John Deere 404 cubic inch, 6-cylinder diesel engine producing approximately 110 horsepower.

What is the PTO horsepower on a 7720?

The John Deere 7720 has a PTO horsepower rating of approximately 95 horsepower and offers both 540 and 1000 RPM PTO options.

What oil filter fits the 7720?

The John Deere 7720 typically uses a John Deere oil filter part number AR51776. Cross-references include Wix 51794 and NAPA 1794.

What are common parts needed for the 7720?

Common wear parts for the John Deere 7720 include engine oil filters, fuel filters, air filters, hydraulic filters, belts (fan, alternator), hydraulic seals, steering components, and clutch parts. Regular replacement of these parts ensures optimal performance and longevity.

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