WhichTractor
  • Rigid chassis
  • WhichTractor size: Standard-size
  • No lab test on file
  • 1991–1998

It sits on the utility/standard-size boundary, so either size is a fair description. WhichTractor size, not the maker’s category

Ford 7840 (A) Engine specs

11 engine values on record for the 7840 (A).

Engine power, claimed · gross or net not stated

98.6 hp

73.5 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “Ford 7840”, claimed

This is the maker’s own figure, measured at the engine. Power at the PTO is lower — by how much, for this machine, nobody has measured.

What engine is in a 7840 (A)?

A 7840 (A) has a FORD-POWERSTAR GA 401 CID-NA, a 6-cylinder 6.58 L diesel engine.

Engine — FORD-POWERSTAR GA 401 CID-NA specifications
Make & modelFORD-POWERSTAR GA 401 CID-NA
FuelDiesel
Cylinders6
Displacement401.7 ci · 6.58 L
CoolingLiquid-cooled
Fuel injectionDirect injection
Maximum torque279 lb·ft · 378 N·m
Maximum torque speed1,197 rpm
Air cleanerLOCKER-AIR-MAZE dry air filter
Cylinders6
Displacement7.0 qt · 6.6 L
Rated engine speed2,070 rpm
Torque rise21.5 %

Source · Traktorenlexikon, “Ford 7840”

Sources and how this page was built

11 engine values from Traktorenlexikon, “Ford 7840”.

Sources checked

14 SEP 2026

Spotted an error?

Sources

Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution

  1. Traktorenlexikon: Ford 7840 — CC BY-SA 4.0, WIKIBOOKS-TL-82821 · revision 1015832. Wikibooks contributors (Traktorenlexikon). Original document