Ford 7840 Overview
Built from 1991 to 1995, the Ford 7840 tractor is listed with a 401 ci (6.6 L) engine rated at 2,100 rpm, a 57.5-gallon fuel tank, and an 83-inch width.
Its independent rear PTO is listed with 540/1000 speeds. For S/SL variants, the hydraulic listing specifies an open-center system, 17.4 gpm pump flow, and one to four valves. Listed agricultural tires are 10.00-16 front and 18.4-34 rear.
Quick Answers
- When was the Ford 7840 built?1991-1995.
- What engine size is listed?401 ci (6.6 L), rated at 2,100 rpm.
- What rear PTO does it have?Independent rear PTO with 540/1000 speeds.
- What hydraulic flow is listed?S/SL listings show open-center hydraulics with 17.4 gpm pump flow and one to four valves.
Engine and Power
The listed 401 ci (6.6 L) engine is rated at 2,100 rpm and has a 21.1-quart (20.0 L) coolant capacity.
Diesel engine
| Displacement | 401 ci 6.6 L |
|---|---|
| Rated Rpm | 2100 |
| Coolant Capacity | 21.1 qts 20.0 L |
Manufacture years
PTO and Hitch
The Ford 7840 is listed with an independent rear PTO and 540/1000 speeds.
Rear PTO
Rear PTO type
Hydraulics
For S/SL variants, the hydraulic system is listed as open center with 17.4 gpm (65.9 lpm) pump flow and one to four valves.
Type
Pump flow
Valves
Tires and Dimensions
Listed agricultural tire sizes are 10.00-16 at the front and 18.4-34 at the rear.
Width
Ag front
Ag rear
Accuracy Note
Tractor specifications can vary by year, region, factory configuration, installed equipment, and later repairs. Match serial range, engine, transmission, PTO setup, and model code before ordering parts or doing service work.