International Harvester 1586 or John Deere 4640 (A)?
Which should you choose?
On performance, every comparable figure that differs favours the John Deere 4640 (A): hydraulic flow. It is also ahead on forward gears.
- The John Deere 4640 (A) suits loader and hydraulic implement work better on this data: 178% (80.6 L/min / 21.3 gpm) more hydraulic flow.
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 | 1586 | 4640 (A) | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 116.4 kW (156.1 hp)Traktorenlexikon, “IHC 1586” | 115.6 kW (155.0 hp)Traktorenlexikon, “John Deere 4640” | 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 1586 and the 4640 (A). |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the 1586 and the 4640 (A). |
| Which pumps more oil for implements? | 45.4 L/min (12.0 gpm)Traktorenlexikon, “IHC 1586” | 126 L/min (33.3 gpm)Traktorenlexikon, “John Deere 4640” | AheadThe John Deere 4640 (A) has 178% more hydraulic flow (80.6 L/min / 21.3 gpm) than the International Harvester 1586 (both pump flow, as stated by the source). |
| Which lifts more on the three-point hitch? | 3,210 kg (7,077 lb)Traktorenlexikon, “IHC 1586” | 3,323 kg (7,326 lb)Traktorenlexikon, “John Deere 4640” | EvenEven on three-point lift (both lift at the hitch ends, as stated by the source): the difference is under the 10% threshold, too small to call. |
| Which is heavier, for traction? | 6,858 kg (15,119 lb)Traktorenlexikon, “IHC 1586” | 6,510 kg (14,352 lb)Traktorenlexikon, “John Deere 4640” | EvenEven on weight (both unladen weight, as stated by the source): the difference is under the 10% threshold, too small to call. |
| Which may carry more ballast and load? | — | 8,430 kg (18,585 lb)Traktorenlexikon, “John Deere 4640” | No figureNo call on maximum permissible mass: no figure on record for the 1586. |
| Which has the wider choice of gears? | 6 to 12Traktorenlexikon, “IHC 1586” | 16Traktorenlexikon, “John Deere 4640” | AheadThe John Deere 4640 (A) has 33% more forward gears (4 gears) than the International Harvester 1586 (both forward gears, as stated by the source). |
| Which offers a creeper range? | — | — | No figureNo call on a creeper range: not stated for the 1586 and the 4640 (A). |
| Which is faster on the road? | 30 km/h (18.6 mph)Traktorenlexikon, “IHC 1586” | 30 km/h (18.6 mph)Traktorenlexikon, “John Deere 4640” | EvenEven on top speed (both top speed forward, as stated by the source): the difference is under the 10% threshold, too small to call. |
| Which offers more PTO speeds? | 1000 rpmTraktorenlexikon, “IHC 1586” | 1000 rpmTraktorenlexikon, “John Deere 4640” | EvenEven on PTO speeds: the same speeds (1000 rpm). |
| Which PTO runs independently of the ground drive? | — | independentTraktorenlexikon, “John Deere 4640” | No figureNo call on PTO independence: not stated for the 1586. |
| Which drives on both axles? | Two-wheel or four-wheel driveTraktorenlexikon, “IHC 1586” | Two-wheel or four-wheel driveTraktorenlexikon, “John Deere 4640” | EvenEven on drive: every machine is available with four-wheel drive. |
| Which is newer, and what about parts? | 1976–1981 | 1978–1982 | EvenSame era: production began within 5 years of each other. We hold no parts-availability data, so there is no call on parts. |
What does this mean in plain words?
- The John Deere 4640 (A) has 178% more hydraulic flow (80.6 L/min / 21.3 gpm) than the International Harvester 1586 (both pump flow, as stated by the source).
- The John Deere 4640 (A) has 33% more forward gears (4 gears) than the International Harvester 1586 (both forward gears, as stated by the source).
- 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 three-point lift (both lift at the hitch ends, as stated by the source): the difference is under the 10% threshold, too small to call.
- Even on weight (both unladen weight, as stated by the source): the difference is under the 10% threshold, too small to call.
- Even on top speed (both top speed forward, as stated by the source): the difference is under the 10% threshold, too small to call.
- Even on PTO speeds: the same speeds (1000 rpm).
- Even on drive: every machine is available with four-wheel drive.
- Same era: production began within 5 years of each other. We hold no parts-availability data, so there is no call on parts.
- 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