David Brown 990 Selectmatic or International Harvester 475?
Which should you choose?
On performance, every comparable figure that differs favours the International Harvester 475: hydraulic flow. It is also ahead on PTO speeds.
- The International Harvester 475 suits PTO-driven implements (mowers, balers, pumps) better on this data: offers 1000 rpm.
- The International Harvester 475 suits loader and hydraulic implement work better on this data: 39% (10.7 L/min / 2.8 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 | 990 Selectmatic | 475 | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 34.3 kW (46.0 hp)Traktorenlexikon, “David Brown 990” | 34.3 kW (46.1 hp)Traktorenlexikon, “IHC 475” | 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 990 Selectmatic and the 475. |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the 990 Selectmatic and the 475. |
| Which pumps more oil for implements? | 27.5 L/min (7.3 gpm)Traktorenlexikon, “David Brown 990” | 38.2 L/min (10.1 gpm)Traktorenlexikon, “IHC 475” | AheadThe International Harvester 475 has 39% more hydraulic flow (10.7 L/min / 2.8 gpm) than the David Brown 990 Selectmatic (both pump flow, as stated by the source). |
| Which lifts more on the three-point hitch? | 907 kg (2,000 lb)Traktorenlexikon, “David Brown 990” | 1,774 kg (3,911 lb)Traktorenlexikon, “IHC 475” | Not comparableNot comparable on three-point lift: the 990 Selectmatic: lift through the full range at the hitch ends, as stated by the source (Traktorenlexikon, “David Brown 990”); the 475: lift at the hitch ends, as stated by the source (Traktorenlexikon, “IHC 475”) — not the same quantity, basis and condition. |
| Which is heavier, for traction? | 2,580 kg (5,688 lb)Traktorenlexikon, “David Brown 990” | 2,565 kg (5,655 lb)Traktorenlexikon, “IHC 475” | 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? | — | — | No figureNo call on maximum permissible mass: no figure on record for the 990 Selectmatic and the 475. |
| Which has the wider choice of gears? | 6 to 12Traktorenlexikon, “David Brown 990” | 8 to 16Traktorenlexikon, “IHC 475” | 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 990 Selectmatic and the 475. |
| Which is faster on the road? | 25 km/h (15.5 mph)Traktorenlexikon, “David Brown 990” | 20 km/h (12.4 mph) to 30 km/h (18.6 mph)Traktorenlexikon, “IHC 475” | EvenEven on top speed (both top speed forward, as stated by the source): the figures vary by configuration and the ranges overlap. |
| Which offers more PTO speeds? | 540 rpmTraktorenlexikon, “David Brown 990” | 540/1000 rpmTraktorenlexikon, “IHC 475” | AheadThe International Harvester 475 offers 1000 rpm at the PTO, which the David Brown 990 Selectmatic does not (as stated by the sources). |
| Which PTO runs independently of the ground drive? | — | — | No figureNo call on PTO independence: not stated for the 990 Selectmatic and the 475. |
| Which drives on both axles? | 2WDTraktorenlexikon, “David Brown 990” | 2WDTraktorenlexikon, “IHC 475” | EvenEven on drive: all two-wheel drive. |
| Which is newer, and what about parts? | 1965–1979 | 1974–1975 | Ahead (a fact, not an advantage)The International Harvester 475 is newer: production began 9 years later. We hold no parts-availability data, so there is no call on parts. |
What does this mean in plain words?
- The International Harvester 475 has 39% more hydraulic flow (10.7 L/min / 2.8 gpm) than the David Brown 990 Selectmatic (both pump flow, as stated by the source).
- The International Harvester 475 offers 1000 rpm at the PTO, which the David Brown 990 Selectmatic does not (as stated by the sources).
- The International Harvester 475 is newer: production began 9 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 weight (both unladen weight, 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 top speed (both top speed forward, as stated by the source): the figures vary by configuration and the ranges overlap.
- Even on drive: all two-wheel drive.
- Not comparable on three-point lift: the 990 Selectmatic: lift through the full range at the hitch ends, as stated by the source (Traktorenlexikon, “David Brown 990”); the 475: lift at the hitch ends, as stated by the source (Traktorenlexikon, “IHC 475”) — not the same quantity, basis and condition.
- 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