This is the complete service manual for the John Deere 4000 and 4020 tractor.
This is the same manual that the dealer repair shops use! It contains hundreds of pictures and diagrams containing all the information you need to repair and troubleshoot your John Deere tractor.
Free Manual/ All Serial Numbers Covered: This is actually a combination of two manuals. Each cover a different serial number range for the 4000 and 4020 tractors. Together they cover all iterations so you don't have to worry about buying the correct version.