Caterpillar 257B Series 3
The Caterpillar 257B Series 3 is a compact track loader with an operating weight of 8,060.1 lb (3,656 kg), a 71 hp engine, a rated operating capacity of 2,674.21 lb (1,213 kg), and a tipping load of 5,350 lb (2,426.8 kg).
✓ QA-verified — every figure checked for unit consistency, physical possibility, and class plausibility; failures withheld →◆Where it sits in its classpercentile · compact track loaders
Among 184 compact track loaders , the Caterpillar 257B Series 3 sits below the median for its class:
- Operating weight 8,060 lb lighter than 68% (n=182)
- Engine power 71 hp less powerful than 60% (n=167)
- Rated operating capacity 2,670 lb higher-rated than 51% (n=156)
◇Scale drawingdrawn to scale · mm
01 Engine Specification
| Engine Make | 2236 | |
|---|---|---|
| Engine Model | C3.4 DIT | |
| Gross Power | 74hp | 55.2kw |
| Net Power | 71hp | 53kw |
| Displacement | 201cu in | 3.3L |
| Bore | 3.7in | 94mm |
| Stroke | 4.7in | 119.4mm |
| Gross Power - Sae J1995 | 74hp | 55.2kw |
| Engine Model | Cat C3.4 DIT | |
| Net Power - Iso 9249 Eec | 71hp | 53kw |
| Net Power - Sae 1349 | 71hp | 53kw |
02 Operational Specification
| Operating Weight | 8060.1lb | 3656kg |
|---|---|---|
| Cooling System Fluid Capacity | 2.7gal | 10L |
| Engine Oil Capacity | 2.4gal | 9L |
| Fuel Capacity | 22.2gal | 84L |
| Hydraulic System Fluid Capacity | 14.6gal | 55L |
| Operating Voltage | 12V | |
| Alternator Supplied Amperage | 90amps | |
| Max Speed - Low Range | 6.9mph | 11.2km/h |
| Max Speed - High Range | 10mph | 16.1km/h |
03 Power Train Specification
| Travel Speed Forward | 6.9mph | 11.2km/h |
|---|---|---|
| Travel Speed Reverse | 6.9mph | 11.2km/h |
| Travel Speed Reverse - 2-Speed Option | 10mph | 16.1km/h |
| Travel Speed Forward - 2-Speed Option | 10mph | 16.1km/h |
04 Loader Specification
| Breakout Force | 4508.5lb | 2045kg |
|---|---|---|
| Operating Load | 2674.3lb | 1213kg |
05 Weights Specification
| Operating Weight | 8060lb | 3656kg |
|---|
06 Hydraulic Specification
| Pump Flow | 22gal/min | 83L/min |
|---|---|---|
| Relief Valve Pressure | 3335psi | 22994kPa |
07 Hydraulic System Specification
| Hydraulic Flow (1) | Standard | |
|---|---|---|
| Hydraulic Power | 42.8hp | 32kw |
| Loader Hydraulic Pressure | 3335 psi | |
| Hydraulic Flow (2) | High Flow | |
| Hydraulic Power - Calculated | 60.3hp | 45kw |
| Loader Hydraulic Flow (1) | 22 gal/min | |
| Loader Hydraulic Flow (2) | 31 gal/min |
08 Operating Specifications Specification
| Rated Operating Capacities - 50% Tipping Load | 2675lb | 1213.4kg |
|---|---|---|
| Rated Operating Capacities - 35% Tipping Load | 1870lb | 848.3kg |
| Ground Contact Area | 1770in2 | 1.2m2 |
| Ground Pressure | 4.5 psi | |
| Tipping Load | 5350lb | 2426.8kg |
| Breakout Force - Tilt Cylinder | 4508lb | 2044.8kg |
09 Service Refill Capacities Specification
| Cooling System | 2.6gal | 9.9L |
|---|---|---|
| Fuel Tank | 22.2gal | 84.1L |
| Hydraulic Tank | 9.2gal | 34.9L |
| Engine Crankcase | 2.4gal | 9.1L |
| Hydraulic System | 14.5gal | 54.9L |
10 Cab Specification
| Rops | SAE J1040 MAY94, ISO 3471:1994 | |
|---|---|---|
| Fops | SAE J1043 SEPT87, ISO 3449:1992 Level I | |
| Fops Level Ii | SAE J231 JAN81, ISO 3449:1992 Level II |
11 Dimensions Dimensions
| Width Over Tracks | 5.5ft in | 1676mm |
|---|---|---|
| Height To Top Of Cab | 6.68ft in | 2035mm |
| Ground Clearance | 10in | 254mm |
| Clearance At Max Lift And Dump | 7.58ft in | 2309mm |
| Reach At Max Lift And Dump | 2.49ft in | 758mm |
| Length - Track On Ground | 59in | 1498.6mm |
| Length - With Bucket On Ground | 135in | 3429mm |
| Length - Without Bucket | 107in | 2717.8mm |
| Length With Out Bucket | 8.92ft in | 2718mm |
| Clearance At Maximum Lift And Dump | 91in | 2311.4mm |
| Departure Angle | 37 degrees | |
| Turning Radius From Center - Inc Bucket | 86.3in | 2192mm |
| Turning Radius From Center - Machine Rear | 57.13in | 1451mm |
| Vehicle Width | 66in | 1676.4mm |
| Length With Bucket | 11.29ft in | 3439mm |
| Bucket Pin Height - Carry Position | 8in | 203.2mm |
| Maximum Dump Angle | 50 degrees | |
| Maximum Overall Height | 153in | 3886.2mm |
| Maximum Reach - With Arms Parallel | 53in | 1346.2mm |
| Overall Length - Track | 75in | 1905mm |
| Rack Back Angle - Maximum Height | 87 degrees | |
| Reach At Maximum Lift/Dump | 30in | 762mm |
| Turn Radius From Center - Bucket | 86in | 2184.4mm |
| Turn Radius From Center - Coupler | 56in | 1422.4mm |
| Turn Radius From Center - Rear | 57in | 1447.8mm |
12 Undercarriage Dimensions
| Length Of Track On Ground | 4.92ft in | 1499mm |
|---|---|---|
| Ground Contact Area | 1770in2 | 1.15m2 |
| Ground Pressure | 4.5psi | 31.03kPa |
Method. Figures are manufacturer reference specifications, not measurements. Every value is checked for unit consistency, physically possible magnitude, and plausibility for its equipment class before publication; figures that fail any check are withheld rather than shown, and figures reconstructed from related data are marked above. Imperial and metric figures are reproduced as published, except where a note states otherwise.