Weight summary
The published International Harvester 1066 weight is 12,148–15,260 lb (5,510–6,921 kg). The primary figure used for comparisons is 12,148 lb (5,510 kg), listed as Operating — gear. The published configurations span 3,112 lb, a 25.6% difference from the lightest listed setup.
How this weight compares
Row-Crop Tractor peers · 510 tractors in the benchmark.
Average
Low and high use the 10th and 90th percentiles of the peer group, which keeps one unusually light or heavy tractor from distorting the scale. Average is the peer-group mean.
Tractor profile
Model information
| Manufacturer | International Harvester |
|---|---|
| Model | 1066 |
| Category | Farm tractor |
| Model years | 1971 – 1976 |
| Tractor type | Row-Crop Tractor |
| Published weight variants | 4 |
Weight variants
Shipping, operating, ballasted and drivetrain/configuration weights are kept separate when the source publishes them separately.
| Weight type | Configuration | Weight | Metric | US tons | Variant / note |
|---|---|---|---|---|---|
| Operating | gear | 12,148 lb | 5,510 kg | 6.07 | — |
| Operating | hydro | 12,320 lb | 5,588 kg | 6.16 | — |
| Operating | duals | 13,345 lb | 6,053 kg | 6.67 | — |
| Ballasted | — | 15,260 lb | 6,921 kg | 7.63 | — |
How configuration changes the weight
Technical details
Dimensions
Power & weight ratios
Transport snapshot
Weight context
Tractors with similar weight
Useful reference points from the same dataset.
Closest by published weight
- Farmall 1066 (12148 lb)
- Allis Chalmers 220 (12160 lb)
- Ford 8730 (12185 lb)
- John Deere 6140M (12200 lb)
- John Deere 6145M (12200 lb)
Closest comparable tractors
- Farmall 1066 (12148 lb, 126 hp)
- John Deere 7130 (12340 lb, 125 hp)
- John Deere 4435 (12400 lb, 125 hp)
- Massey Ferguson 3650 (12037 lb, 130 hp)
- New Holland TM125 (11765 lb, 125 hp)
International Harvester 1066 weight FAQ
How much does an International Harvester 1066 weigh?
The International Harvester 1066 weighs 12,148 lb (5,510 kg) using the published Operating — gear figure. Across the published configurations on this page, weight ranges from 12,148 to 15,260 lb (5,510 to 6,921 kg).
How much does the hydrostatic International Harvester 1066 weigh compared with the gear-drive version?
The published hydrostatic weight is 12,320 lb (5,588 kg), while gear-drive configurations are 12,148 lb (5,510 kg). The exact difference depends on drivetrain as well as transmission, so the configuration table above is the safest like-for-like reference.
What is the operating weight of the International Harvester 1066?
The published operating weight is 12,148–13,345 lb (5,510–6,053 kg). This is usually a more useful real-world figure than a bare shipping specification, although ballast, loader, fuel, implements and tire setup can still increase actual working weight.
How much does the International Harvester 1066 weigh with ballast?
The published ballasted weight is 15,260 lb (6,922 kg). That is up to 3,112 lb (25.6%) above the lightest published configuration. Ballast can therefore change the practical hauling and ground-pressure picture substantially on this model.
Is the International Harvester 1066 heavy or light for a row-crop tractor?
It is close to average for its peer group. The representative figure sits at about the 41st percentile, near the middle of the row-crop tractor peers. That puts it in the average range for this comparison. It is 1,858 lb lighter than the peer-group average of 14,006 lb.
How wide is the International Harvester 1066 for transport?
The maximum published tractor width is 98 in (8.2 ft). That is 4 in under 8.5 ft before allowing for a loader, duals, implements or other equipment that may increase transport width.

