Fiat 640 (DT) or IMT 577 (DV)?
Which should you choose?
On performance, every comparable figure that differs favours the IMT 577 (DV): three-point lift. It is also ahead on top speed.
- The IMT 577 (DV) suits loader and hydraulic implement work better on this data: 13% (300 kg / 661 lb) more three-point lift.
- The IMT 577 (DV) suits road haulage better on this data: 20% (5.0 km/h / 3.1 mph) more top speed.
Generated by rule set compare@4 from the figures on the side-by-side table, allowed by route “the same stated configuration”. Measured figures are compared only with measured, claimed only with claimed, at the same test condition; differences within each figure’s tolerance are not called.
What decides it, question by question?
| Question | 640 (DT) | 577 (DV) | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 39.1 kW (52.4 hp)Traktorenlexikon, “Fiat 640/640 DT” | 38.8 kW (52.1 hp)Traktorenlexikon, “IMT 577” | EvenEven on power at the PTO shaft (both power at the PTO, claimed): the difference is under the 10% threshold for claimed figures, too small to call. |
| Which turns a litre of fuel into more work at the shaft? | — | — | No figureNo call on fuel efficiency at the shaft: no figure on record for the 640 (DT) and the 577 (DV). |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the 640 (DT) and the 577 (DV). |
| Which pumps more oil for implements? | 21.8 L/min (5.8 gpm)Traktorenlexikon, “Fiat 640/640 DT” | 22.3 L/min (5.9 gpm)Traktorenlexikon, “IMT 577” | EvenEven on hydraulic flow (both pump flow, as stated by the source): the difference is under the 10% threshold, too small to call. |
| Which lifts more on the three-point hitch? | 2,250 kg (4,960 lb)Traktorenlexikon, “Fiat 640/640 DT” | 2,550 kg (5,622 lb)Traktorenlexikon, “IMT 577” | AheadThe IMT 577 (DV) has 13% more lift (300 kg / 661 lb) than the Fiat 640 (DT) (both lift at the hitch ends, as stated by the source). |
| Which is heavier, for traction? | 2,350 kg (5,181 lb)Traktorenlexikon, “Fiat 640/640 DT” | 2,940 kg (6,482 lb)Traktorenlexikon, “IMT 577” | Ahead (a fact, not an advantage)The IMT 577 (DV) is 25% heavier (590 kg / 1,301 lb) than the Fiat 640 (DT) (both unladen weight, as stated by the source). |
| Which may carry more ballast and load? | 3,700 kg (8,157 lb)Traktorenlexikon, “Fiat 640/640 DT” | — | No figureNo call on maximum permissible mass: no figure on record for the 577 (DV). |
| Which has the wider choice of gears? | 8 to 12Traktorenlexikon, “Fiat 640/640 DT” | 10Traktorenlexikon, “IMT 577” | EvenEven on forward gears (both forward gears, as stated by the source): the figures vary by configuration and the ranges overlap. |
| Which offers a creeper range? | — | — | No figureNo call on a creeper range: not stated for the 640 (DT) and the 577 (DV). |
| Which is faster on the road? | 25 km/h (15.5 mph)Traktorenlexikon, “Fiat 640/640 DT” | 30 km/h (18.6 mph)Traktorenlexikon, “IMT 577” | AheadThe IMT 577 (DV) has 20% more top speed (5.0 km/h / 3.1 mph) than the Fiat 640 (DT) (both top speed forward, as stated by the source). |
| Which offers more PTO speeds? | 540 rpmTraktorenlexikon, “Fiat 640/640 DT” | 540 rpmTraktorenlexikon, “IMT 577” | EvenEven on PTO speeds: the same speeds (540 rpm). |
| Which PTO runs independently of the ground drive? | — | independentTraktorenlexikon, “IMT 577” | No figureNo call on PTO independence: not stated for the 640 (DT). |
| Which drives on both axles? | Two-wheel or four-wheel driveTraktorenlexikon, “Fiat 640/640 DT” | 2WD / 4WDTraktorenlexikon, “IMT 577” | EvenEven on drive: every machine is available with four-wheel drive. |
| Which is newer, and what about parts? | 1973–1982 | 1981–1993 | Ahead (a fact, not an advantage)The IMT 577 (DV) is newer: production began 8 years later. We hold no parts-availability data, so there is no call on parts. |
What does this mean in plain words?
- The IMT 577 (DV) has 13% more lift (300 kg / 661 lb) than the Fiat 640 (DT) (both lift at the hitch ends, as stated by the source).
- The IMT 577 (DV) is 25% heavier (590 kg / 1,301 lb) than the Fiat 640 (DT) (both unladen weight, as stated by the source).
- The IMT 577 (DV) has 20% more top speed (5.0 km/h / 3.1 mph) than the Fiat 640 (DT) (both top speed forward, as stated by the source).
- The IMT 577 (DV) is newer: production began 8 years later. We hold no parts-availability data, so there is no call on parts.
- Even on power at the PTO shaft (both power at the PTO, claimed): the difference is under the 10% threshold for claimed figures, too small to call.
- Even on hydraulic flow (both pump flow, as stated by the source): the difference is under the 10% threshold, too small to call.
- Even on forward gears (both forward gears, as stated by the source): the figures vary by configuration and the ranges overlap.
- Even on PTO speeds: the same speeds (540 rpm).
- Even on drive: every machine is available with four-wheel drive.
- No figure on record for every machine, so no call on: fuel efficiency at the shaft, drawbar power, maximum permissible mass, a creeper range and PTO independence.
← Every figure for both machines, side by side, with sources