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New Holland 7840 - transmission

New Holland 7840 tractor photo
1996 - 1998   PowerStar 40 Series
Row-Crop tractor
Previous model:Ford 7840
Series next:New Holland 8240
Series back:New Holland 7740
more New Holland 7840 specifications...

Note: the New Holland model 7840 is the same as the Ford 7840. The following data is from the 7840 listing.


Type:constant mesh
Gears:8 forward and 2 reverse
Clutch:dry disc
Oil capacity:69.6 qts [65.9 L]
Four gears (1-4), plus reverse, in two ranges (L/H). Optional creeper provided a third range. Tractor must be stopped and clutch used to shift gears or range. The eight-speed transmission was only used on the 7840S.
Speeds:With 16.9-34 rear tires.
7840 EconoShift constant mesh speeds


Transmission:Dual Power
Type:two-speed power shift
Gears:16 forward and 4 reverse
Clutch:dry disc
Oil capacity:69.6 qts [65.9 L]
Dual Power adds a two-speed power shift between direct drive and the lower Dual Power range to the basic eight-speed transmission. The Dual Power range is engaged by a switch on the dashboard. Dual Power was an option on the 7840S.
Speeds:With 16.9-34 rear tires.
7840 Dual Power two-speed power shift speeds


Gears:12 forward and reverse
Clutch:dry disc
Four gears (1-4) in three ranges (L/M/H) with right-hand shuttle lever. Gear shifts are synchronized. Shifts between medium and high ranges are synchronized, but the tractor should be stopped to shift to or from low range. Sychronized shuttle shifting. The 12-speed SynchroShift was standard on the 7840 SL. Dual power was an option with the SynchroShift, turning it into a 24-speed transmission.
Speeds:With 16.9-38 rear tires.
7840 SynchroShift synchronized speeds


Transmission:ElectroShift/Pulse Command
Type:four-speed power shift
Gears:16 forward and reverse
Clutch:wet disc
Oil capacity:64 qts [60.6 L]
Four power shift gears arranged in two synchronized ratio groups (1-4 and 5-8). Two synchronized ranges (low/high) and right-hand shuttle. Clutch must be used to shift range or move between the lower (1-4) and higher (5-8) gear ratio groups. Push-button power shifting between the four gears in a ratio group. Push-button de-clutching on the shuttle lever allow shifting without the foot clutch. The 16 power shift was standard on the 7840 SLE.
Speeds:With 16.9-38 rear tires.
7840 ElectroShift/Pulse Command four-speed power shift speeds

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Last update:April 27, 2018
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