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David BrownModel A
David Brown 1690
Utility
- power
- 90 hp
- displacement
- 329 ci
- Cylinders
- 6
- Forward gears
- 12
Head to head · Utility
David Brown 1690 vs Ford 6640
Image not recorded
FordModel B
Ford 6640
Utility
- power
- 90.7 hp
- displacement
- 304 ci
- Cylinders
- 4
- Forward gears
- Not recorded
David BrownDavid Brown 1690
vs
FordFord 6640
How they compare
Headline specs vs. the whole Utility
Engine Power
▲ 6640 higher · +0.7 hp (<1%)169090 hp
664090.7 hp
Median Utility Tractor55 hp
1690 is in the 78th percentile; 6640 is in the 78th · 5,383 models
Engine Displacement
▲ 1690 higher · +25 ci (+8%)1690329 ci
6640304 ci
Median Utility Tractor183 ci
1690 is in the 85th percentile; 6640 is in the 84th · 5,580 models
Cylinders
▲ 1690 higher · +2 (+50%)16906
66404
Median Utility Tractor4
1690 is in the 93rd percentile; 6640 is in the 50th · 5,720 models
Operating Weight
▲ 1690 higher · +620 lb (+8%)16908,755 lb
66408,135 lb
Median Utility Tractor5,303 lb
1690 is in the 81st percentile; 6640 is in the 76th · 5,107 models
1690 (A)6640 (B)Median Utility Tractor
Full comparison
Every spec, side by side
General Information
| Spec | David Brown 1690 | Ford 6640 | Difference |
|---|---|---|---|
| Manufacturer | David Brown | Ford | — |
| Model | 1690 | 6640 | — |
| Category | Utility | Utility | Same |
Engine
| Spec | David Brown 1690 | Ford 6640 | Difference |
|---|---|---|---|
| Manufacturer | J.I. Case | Ford | — |
| Model | Not recorded | Genesis | — |
| Power Output | 90hp | 90.7hp | ▲ 6640+0.7 hp · <1% |
| Rated RPM | 2,200RPM | 2,200RPM | Same |
| Cylinders | 6 | 4 | ▲ 1690+2 · +50% |
| Displacement | 329ci | 304ci | ▲ 1690+25 ci · +8% |
| Bore | 3.9in | 4.4in | ▲ 6640+0.5 in · +13% |
| Stroke | 4.5in | 5in | ▲ 6640+0.5 in · +11% |
Transmission
| Spec | David Brown 1690 | Ford 6640 | Difference |
|---|---|---|---|
| Type | Synchromesh with hydraulic dry disc clutch | Not recorded | — |
Dimensions & Weight
| Spec | David Brown 1690 | Ford 6640 | Difference |
|---|---|---|---|
| Length | Not recorded | 162in | — |
| Height | Not recorded | 107in | — |
| Operating Weight | 8,755lb | 8,135lb | ▲ 1690+620 lb · +8% |
Hydraulics
| Spec | David Brown 1690 | Ford 6640 | Difference |
|---|---|---|---|
| System Type | Open Center | Open center | Same |
| Steering Type | Power | Hydrostatic power | — |
Power Take-off (PTO)
| Spec | David Brown 1690 | Ford 6640 | Difference |
|---|---|---|---|
| Type | Independent | Independent | Same |
| Speed 1 | 540rpm | 540rpm | Same |
| Speed 2 | 1,000rpm | Not recorded | — |
Hitch & Towing
| Spec | David Brown 1690 | Ford 6640 | Difference |
|---|---|---|---|
| Hitch Type | Not recorded | Three-Point Hitch | — |
| Hitch Category | II | II | Same |
Chassis & Drive
| Spec | David Brown 1690 | Ford 6640 | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | Not recorded | — |
| Drive Type | 2WD | Not recorded | — |
| Steering Type | Power | Hydrostatic power | — |
| Brake Type | Hydraulic wet disc | Not recorded | — |
Electrical
| Spec | David Brown 1690 | Ford 6640 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
Capacities
| Spec | David Brown 1690 | Ford 6640 | Difference |
|---|---|---|---|
| Coolant | 4gal | 3.8gal | ▲ 1690+0.2 gal · +5% |
Operator Station
| Spec | David Brown 1690 | Ford 6640 | Difference |
|---|---|---|---|
| Type | Two-post ROPS or Cab (optional) | Two-post foldable ROPS | — |
Category context
Both models against the field
Engine Power
median 55 hpA · 78th percentile (90 hp)B · 78th percentile (90.7 hp)
Engine Displacement
median 183 ciA · 85th percentile (329 ci)B · 84th percentile (304 ci)
Cylinders
median 4A · 93rd percentile (6)B · 50th percentile (4)
Operating Weight
median 5,303 lbA · 81st percentile (8,755 lb)B · 76th percentile (8,135 lb)
A · 1690B · 6640Median Utility Tractor