Production years
Approximately 1996-2001 (confirm with dealer/serial records)
John Deere baler ยท 1996-2001 (approximate; confirm with dealer or serial records)
John Deere 566 Baler
The John Deere 566 is a variable-chamber, belt-type round baler that makes large round bales measuring about 5 feet wide by up to 6 feet in diameter, making it a classic 5x6 baler. It was produced roughly from the mid-1990s into the early 2000s. It sits in Deere's 500-series lineup as the popular 5x6 model, valued by hay and forage producers for dependable, high-volume round baling. It is widely regarded as a reliable, well-supported workhorse still common on farms and in the used market today.
Baler type
Variable-chamber belt round baler
Bale size
Up to about 6 ft (72 in) diameter x 5 ft (61 in) wide; bale diameter adjustable via the variable chamber
Power required
Roughly 55-65 PTO hp minimum is commonly cited; many operators recommend about 80-90+ PTO hp for heavy, high-volume, or silage baling. Confirm with the operator manual.
John Deere 566 specifications
| Production years | Approximately 1996-2001 (confirm with dealer/serial records) |
|---|---|
| Baler type | Variable-chamber belt round baler |
| Bale size | Up to about 6 ft (72 in) diameter x 5 ft (61 in) wide; bale diameter adjustable via the variable chamber |
| Pickup width | Approximately 5 ft gathering width (roughly 60 in tine width); confirm exact figure with dealer |
| Power required | Roughly 55-65 PTO hp minimum is commonly cited; many operators recommend about 80-90+ PTO hp for heavy, high-volume, or silage baling. Confirm with the operator manual. |
| Weight | Approximately 4,500-5,000 lb depending on options (approximate) |
| Tying/wrapping | Twine tie standard; net wrap available as an option on many units |
| PTO | 540 rpm PTO standard (constant-velocity driveline with slip clutch); convertible to 1000 rpm on some units |
What the 566 is used for
The 566 was designed for medium to large hay and forage operations that bale dry grass hay, alfalfa, and crop residue such as straw and cornstalks into large 5x6 round bales. Its variable-chamber belt design lets operators set bale density and adjust bale diameter, making it suitable for a range of crops and moisture conditions on mid-size to larger acreages.
Today owners value the 566 as an affordable, capable used baler for cow-calf operations, custom hay work, and general forage handling. Many are still in daily seasonal service, and operators appreciate that parts and dealer support remain broadly available, which keeps older units running economically.
Why the John Deere 566 stands out
The 566 is notable for combining solid capacity with the simplicity and durability of Deere's proven belt-and-roller variable-chamber system, which built a strong reputation for reliability and consistent bale shape. Its wide pickup and 5x6 bale format handle high daily volume, and the availability of net wrap on many units speeds baling and improves bale weather resistance. Strong parts availability, widespread dealer familiarity, and durable construction give the model good resale value and make it a frequent, sought-after choice on the used market.
Buying a used John Deere 566
When buying a used 566, inspect the wear points that determine remaining life. Check the pickup teeth (tines) for bent, broken, or missing pieces and look at the pickup bearings and cam track. Examine the baler belts closely for cracking, fraying, lacing condition, and tracking, and check the drive and stripper rollers plus their bearings for wear or play. Verify the driveline, slip clutch, chains, sprockets, and pickup drive are in good order, and confirm all bearings turn smoothly without noise. Test the twine (and net wrap, if equipped) tie system through a full cycle to confirm the wrap arm, twine tubes, and cutoff work reliably. Look for gearbox leaks and confirm the monitor and controls function. Ask for the operator manual and, where possible, the maintenance history, and confirm any figures that matter with a Deere dealer.
John Deere 566 frequently asked questions
What size bales does the John Deere 566 make?
The 566 is a 5x6-class variable-chamber round baler, making bales about 5 feet (61 in) wide and up to roughly 6 feet (72 in) in diameter. Because the chamber is variable, you can set a smaller bale diameter for different crops or handling needs. Confirm exact bale dimensions and settings in the operator manual for your specific machine.
How much PTO horsepower do I need to run a 566?
A commonly cited minimum is in the range of about 55 to 65 PTO horsepower, running on a 540 rpm PTO (1000 rpm is available on some units). Many operators prefer about 80 to 90 or more PTO horsepower for heavy, high-volume, or silage conditions, especially with net wrap. Verify the exact requirement for your unit and crop conditions with the operator manual or a Deere dealer.
Is the John Deere 566 a good baler, and are parts available?
Yes, the 566 has a strong reputation as a reliable, capable used round baler, which is why many remain in service. Parts and dealer support are generally broadly available. The most common issues to watch for are typical round-baler wear items such as belts, pickup teeth, rollers, and bearings, along with the twine or net wrap tie system, so inspect those closely before buying.
Specifications are commonly cited figures for general reference; exact figures vary by year and serial number, so confirm against TractorData.com and the machine's records. Values and prices of used balers vary by condition, use, and region. Page updated Aug 4, 2026.