John Deere 7720

John Deere 6.8L 6-cyl diesel

Bore × stroke

4.19 in × 5 in

Rated speed

2,100 rpm

Rated power

172.9 hp

Compression

17:1

Aspiration

turbocharged diesel

Cooling

liquid-cooled inline

Firing order

1-5-3-6-2-4

PowrQuad Plus: Four power-shift gears (1-4) in four synchronized ranges (A-D) with left-hand reverser. Power shuttle shifting between forward and reverse.

AutoPowr IVT: Hydro-mechanical IVT controlled via right-hand speed lever and left-hand reverser lever. Knob on the speed lever adjusts the set speeds for two ranges. Minimum speed of 50 meters per hour (164 feet per hour). The IVT was available on the 7720 only when equipped with four-wheel drive.

PowrQuad Plus: Four power-shift gears (1-4) in five synchronized ranges (A-E) with left-hand reverser. Power shuttle shifting between forward and reverse.

AutoQuad Plus: Four power-shift gears (1-4) in five synchronized ranges (A-E) with left-hand reverser. Power shuttle shifting between forward and reverse. AutoQuad mode offers automatic load-matched gear shifting with standard and economy-shift settings.