John Deere 6620 Tractor Parts

6620 parts and accessories

The John Deere 6620 tractor, manufactured from 2003 to 2007, was a popular choice for farmers needing a reliable and versatile machine. Powered by a John Deere PowerTech 6.8L diesel engine producing approximately 125 horsepower, the 6620 offered ample power for a variety of tasks. Its robust design and a PTO horsepower rating of around 105 made it well-suited for haying, tillage, and livestock operations.

The John Deere 6620 was introduced in 2003 as part of the '20 Series' tractors, replacing earlier models and offering improvements in engine technology and operator comfort. Production continued until 2007. It featured a John Deere PowerTech 6.8L turbocharged diesel engine, delivering around 125 horsepower. This engine was known for its fuel efficiency and reliability. Transmission options included a standard SyncroPlus transmission with several gear options depending on the specific configuration, some offering partial power shift capabilities. The independent PTO delivered around 105 horsepower, available in both 540 and 1000 RPM options, providing versatility for different implements. The hydraulic system had a capacity of approximately 29 GPM, providing ample flow for hydraulic implements. The 3-point hitch was a Category II, offering a lift capacity of around 6,500 lbs. The 6620 found applications in various farming operations, including row crop work, hay production, and livestock management. Compared to the smaller 6000 series, it offered more power and hydraulic capacity, while remaining more compact and maneuverable than the larger 7000 series tractors, making it a well-rounded machine for many farm sizes.

Specifications

Engine	John Deere PowerTech 6.8L 125 HP Diesel
PTO HP	105 HP @ 540/1000 RPM
Transmission	SyncroPlus (Various Speed Options Available)
Hydraulics	29 GPM, 2-3 remotes
3-Point Hitch	Category II, 6500 lbs
Fuel Capacity	47.5 gallons
Weight	12,500 lbs
Years Produced	2003-2007

Maintenance Tips

Engine Oil & Filter: Change engine oil and filter every 250-300 hours using the recommended John Deere oil specification for optimal engine life.
Hydraulic System: Check hydraulic fluid levels regularly and replace hydraulic filters according to the manufacturer's recommendations (usually every 500 hours) to prevent contamination and maintain hydraulic performance.
Fuel System: Use clean, high-quality diesel fuel and regularly inspect the fuel filter. Drain any water or sediment from the fuel tank to prevent fuel system issues.
Seasonal Storage: Before storing the tractor for the off-season, stabilize the fuel, grease all fittings, and consider covering the exhaust pipe to prevent moisture from entering the engine.

History & Background

The John Deere 6620 was launched in 2003 as part of John Deere's revamped '20 Series' tractor line. This series was designed to improve upon the previous generation with enhanced engine technology and improved operator comfort. The 6620 proved a popular model during its production run due to its versatile size and power.

Frequently Asked Questions

What engine is in the John Deere 6620?

The John Deere 6620 is equipped with a John Deere PowerTech 6.8L turbocharged diesel engine producing approximately 125 horsepower.

What is the PTO horsepower on a 6620?

The John Deere 6620 has a PTO horsepower rating of around 105 HP. It offers both 540 and 1000 RPM PTO options.

What oil filter fits the 6620?

The correct oil filter for the John Deere 6620 is typically a John Deere filter part number RE504836 or equivalent. Cross-references include Wix 51793, Baldwin B7349, and Fleetguard LF3620.

What are common parts needed for the 6620?

Common wear parts for the John Deere 6620 include engine oil filters, fuel filters, hydraulic filters, belts (alternator, water pump), hydraulic cylinder seals, steering linkage components, clutch parts (depending on transmission type), and radiator hoses.

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