John Deere 4040

John Deere 6.6L 6-cyl diesel

Bore × stroke

4.25 in × 4.75 in

Rated speed

2,200 rpm

Compression

16.7:1

Cooling

liquid-cooled

Firing order

1-5-3-6-2-4

John Deere Quad-Range: Four gears (1-4) in four ranges (A-D). Power shift between pairs 1-2 and 3-4 in each range, with synchronized shift between 2-3. Two reverses in ranges A-C. Tractor must be stopped, and clutch used, to shift ranges. Power shift is provided hy a hydraulically-controlled planetary that provides an under-drive to each gear.

John Deere Syncro-Range: Four shift stations with two forward gears each. Reverse gear in stations one and two. Shifts between gears within a station are synchronized (clutch must be used). Tractor must be stopped, and clutch used, to select shift stations.

John Deere Powershift: Clutchless shift-on-the-move power shift between all eight forward and four reverse gears. Inching pedal provided for hooking up implements and other precision work.

John Deere Syncro-Range Creeper: Adds creeper to gears 1-5 of the Syncro-Range transmission. Creeper engaged by clutching and moving creeper control lever.