John Deere 640R
Verified tractor compatibility and published loader specifications from the cited manufacturer source.
Loader specifications
Compatible tractors
Configuration notes matter. A loader listed for one axle or leveling configuration should not be assumed compatible with every version of the same tractor model.
John Deere US lists the 6M 130 as compatible with the 620R or 640R front loader.
John Deere US lists the 6M 140 as compatible with the 620R or 640R front loader.
John Deere US lists the 6M 150 as compatible with the 620R or 640R front loader.
John Deere US lists the 6R 110 as compatible with the 620R or 640R front loader.
John Deere US lists the 6R 120 as compatible with the 620R or 640R front loader.
John Deere US lists the 6R 130 as compatible with the 620R or 640R front loader.
John Deere US lists the 6R 140 as compatible with the 620R or 640R front loader.
John Deere US lists the 6R 150 as compatible with the 620R or 640R front loader.