- Rigid chassis
- WhichTractor size: Utility
- No lab test on file
- 1991–1997
WhichTractor size, not the maker’s category
Derived by WhichTractor from a sourced three-point linkage. How we decide what a machine is
Ford 6640 (A) specs: hp, weight, years
FORD-POWERSTAR NA 304 CID-NA four-cylinder diesel. The manufacturer claimed 83.8 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.
Engine power, claimed · gross or net not stated
83.8 hp
62.5 kW as stated by the source
No lab test on file
Claimed · standard not stated by the source
Source · Traktorenlexikon, “Ford 6640”, 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.
- Weight
- 8,510 lb
- 3-point lift
- 7,668 lb
- Hyd. flow
- 9.9 gpm
- Top speed
- 18.6–24.9 mph
Ford 6640 (A) specs: key facts
The Ford 6640 (A) was built from 1991 to 1997.
The Ford 6640 (A) has a claimed engine power (gross or net not stated) of 62.5 kW (83.8 hp); it has no measured PTO figure.
The Ford 6640 (A) was offered in two-wheel-drive and four-wheel-drive versions.
The Ford 6640 (A) has a FORD-POWERSTAR NA 304 CID-NA engine, a 4-cylinder 4.99 L diesel unit.
The Ford 6640 (A) weighs 3,860 kg (8,510 lb) unladen.
The Ford 6640 (A) has a rear PTO running at 540 rpm / 1000 rpm.
The three-point hitch of the Ford 6640 (A) lifts 3,478 kg (7,668 lb) at the lower-link ends.
The hydraulic pump of the Ford 6640 (A) delivers 37.4 L/min (9.9 gpm).
Source · Traktorenlexikon, “Ford 6640”

How much horsepower does a 6640 (A) have?
The only figure for the 6640 (A) is 83.8 hp (62.5 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.
Source · Traktorenlexikon, “Ford 6640”
What engine is in a 6640 (A)?
A 6640 (A) has a FORD-POWERSTAR NA 304 CID-NA, a 4-cylinder 4.99 L diesel engine.
| Make & model | FORD-POWERSTAR NA 304 CID-NA |
|---|---|
| Cylinders | 4, liquid-cooled |
| Displacement | 304.2 ci · 4.99 L |
| Max torque | 226 lb·ft · 307 N·m @ 1,240 rpm |
| Electrical system | 12 V |
Source · Traktorenlexikon, “Ford 6640”
How much will a 6640 (A) lift, and what is its hydraulic flow?
A 6640 (A) lifts 7,668 lb (3,478 kg) at the lower-link ends of its Category 2 three-point hitch.
| System | Open centre |
|---|---|
| Pump flow | 9.9 gpm · 37.4 L/min |
| Pressure | 2,582 psi · 178 bar |
| Hitch category | Category 2 |
| Lift at ends | 7,668 lb · 3,478 kg |
| Rear PTO | 540 rpm / 1000 rpm @ 1,890 engine rpm |
Source · Traktorenlexikon, “Ford 6640”
What transmission does a 6640 (A) have?
Transmission specifications for the 6640 (A) are below.
| Top speed | 18.6–24.9 mph · 30–40 km/hthe article lists alternatives |
|---|
Source · Traktorenlexikon, “Ford 6640”
How much does a 6640 (A) weigh?
A 6640 (A) weighs 8,510 lb (3,860 kg) unladen.
| Unladen weight | 8,510 lb · 3,860 kgtwo-wheel-drive version |
|---|---|
| Wheelbase | 93.0 in · 2,362 mm |
| Length | 160.4 in · 4,073 mm |
| Width | 76.8 in · 1,950 mmtwo-wheel-drive version |
| Height | 107.9 in · 2,741 mm |
| Ground clearance | 16.0 in · 407 mmtwo-wheel-drive version |
| Rear track | 60.2–79.8 in · 1,528–2,028 mm |
Source · Traktorenlexikon, “Ford 6640”
What oil does a 6640 (A) take, and how much?
A 6640 (A) engine takes 12.0 qt (11.4 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.
| System | Capacity |
|---|---|
| Engine oil | 12.0 qt · 11.4 LSource: Traktorenlexikon, “Ford 6640” · single source, not independently verified |
| Transmission | 64.0 qt · 60.6 LSource: Traktorenlexikon, “Ford 6640” · single source, not independently verified |
| Hydraulic | 35.8 qt · 33.9 LSource: Traktorenlexikon, “Ford 6640” · single source, not independently verified |
| Front axle | 6.6 qt · 6.2 LSource: Traktorenlexikon, “Ford 6640” · single source, not independently verified |
| Final drives | 3.2 qt · 3.0 LSource: Traktorenlexikon, “Ford 6640” · single source, not independently verified |
| Cooling system | 16.9 qt · 16.0 LSource: Traktorenlexikon, “Ford 6640” · single source, not independently verified |
Always confirm against the operator’s manual for your machine before service.
Which tractors compare with a 6640 (A)?
Within 10% of its 83.8 hp of claimed engine power, the same type, and first built within 15 years of it.
- VALMET 6300-483.8 hp engine, claimed · 1991–2007Side by side with the 6640 (A) →
- SAME Frutteto 85 II83.8 hp engine, claimed · 1992–2005Side by side with the 6640 (A) →
- AGRIFULL A-90 DL-Turbo83.8 hp engine, claimed · 1993–1995Side by side with the 6640 (A) →
- Fiat 85-90 Turbo (DT)83.8 hp engine, claimed · 1989–1992Side by side with the 6640 (A) →
- Massey Ferguson 3065 (A)83.8 hp engine, claimed · 1988–1995Side by side with the 6640 (A) →
- Hürlimann 908 XT83.8 hp engine, claimed · 1995–2004Side by side with the 6640 (A) →
Common questions about the Ford 6640 (A)
Is a 6640 (A) two-wheel drive or four-wheel drive?
The Ford 6640 (A) was offered in two-wheel-drive and four-wheel-drive versions.
What PTO does a 6640 (A) have?
A 6640 (A) has a 540 rpm / 1000 rpm rear PTO.
Sources and how this page was built
Compiled from Traktorenlexikon, “Ford 6640”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- Traktorenlexikon: Ford 6640 — CC BY-SA 4.0, WIKIBOOKS-TL-91347 · revision 919903. Wikibooks contributors (Traktorenlexikon). Original document