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Caterpillar 259D3 vs Bobcat T66-2
Published specs and dimensions of two compact track loaders side by side. Every value comes from the manufacturer document cited on each model page; ≈ marks a unit conversion.
Key differences
The Caterpillar 259D3 is 426 lb (193 kg) heavier, 2 in (46 mm) narrower and 3 in (66 mm) taller than the Bobcat T66-2.
- Gross power: 55.4 kW / 74.3 hp (Caterpillar 259D3) vs 55.2 kW / 74 hp (Bobcat T66-2); Caterpillar 259D3 is higher.
- Track length on ground: 1,499 mm / 4 ft 11 in (Caterpillar 259D3) vs 1,379 mm / 4 ft 6 in (Bobcat T66-2); Caterpillar 259D3 is higher.
- Shoe / track width: 320 mm / 12.6 in (Caterpillar 259D3) vs 320 mm / 12.6 in (Bobcat T66-2); Bobcat T66-2 is higher.
- Ground pressure: 41.8 kPa / 6.06 psi (Caterpillar 259D3) vs 38.6 kPa / 5.6 psi (Bobcat T66-2); Caterpillar 259D3 is higher.
- Pump / aux flow: 76 L/min / 20.1 gpm (Caterpillar 259D3) vs 66.6 L/min / 17.6 gpm (Bobcat T66-2); Caterpillar 259D3 is higher.
- System / relief pressure: 23 MPa / 3,336 psi (Caterpillar 259D3) vs 24.1 MPa / 3,500 psi (Bobcat T66-2); Bobcat T66-2 is higher.
Computed from the published figures for each model's stated configuration (listed below the table). Options such as boom, bucket, tracks or tires change these numbers.
Caterpillar 259D3 specs Bobcat T66-2 specs Open in interactive compare Trailer fit: Caterpillar 259D3 Trailer fit: Bobcat T66-2
Side-by-side specs
Use the Metric / Imperial switch at the top to change units. Highlighted rows differ.
| Spec | Caterpillar 259D3 | Bobcat T66-2 |
|---|---|---|
| Weights | ||
| Operating weight | 4,076 kg | ≈ 3,883 kg |
| Dimensions | ||
| Overall length | 3,486 mm | Not captured |
| Overall width | 1,676 mm | ≈ 1,722 mm |
| Overall height | 2,111 mm | ≈ 2,045 mm |
| Track gauge / tread | Not published | Not captured |
| Track length on ground | 1,499 mm | ≈ 1,379 mm |
| Shoe / track width | 320 mm | ≈ 320 mm |
| Ground clearance | 226 mm | Not captured |
| Undercarriage / tires | ||
| Undercarriage type | Rubber track, suspended undercarriage | Rubber tracks |
| Ground pressure | ||
| Ground pressure | 41.8 kPa | ≈ 38.6 kPa |
| Engine | ||
| Engine model | Cat C3.3B DIT (turbo) | Not captured |
| Net power | 54.6 kW | Not published |
| Gross power | 55.4 kW | ≈ 55.2 kW ⚠ The manufacturer does not state the rating standard (gross or net). Filed as gross power; compare with care. |
| Displacement | 3.3 L | Not captured |
| Hydraulics | ||
| Pump / aux flow | 76 L/min | ≈ 66.6 L/min |
| System / relief pressure | ≈ 23 MPa | ≈ 24.1 MPa |
| Performance | ||
| Rated / lift capacity | 915 kg | ≈ 1,089 kg |
| Tipping load | 2,610 kg | ≈ 3,110 kg |
| Lift / hinge-pin height | 3,075 mm | ≈ 3,048 mm |
| Dump height / clearance | 2,283 mm | Not captured |
| Breakout / digging force | ≈ 22.1 kN | ≈ 24.4 kN |
| Max travel speed | 13.7 km/h | ≈ 15 km/h |
Configurations.
Caterpillar 259D3: Two-speed, OROPS, 1730 mm (68 in) low-profile bucket, 320 mm steel-imbed rubber tracks, standard-flow hydraulics, no optional counterweights, 75 kg operator; Tier 4 Final/Stage V.
Bobcat T66-2: Pro T66-2 (current NA version of the T66), standard 12.6 in tracks, cab; NA 2026 spec book