S, T and E machines do different jobs
The S650 is a wheeled skid-steer loader; the T650 is a compact track loader; the E35 is a compact excavator. Their bucket mounts, undercarriage and working-load limits are different. A “Bobcat bucket” purchase first identifies the machine family, then the working width and exact mounting system.
Classic S650 and T650 hydraulic packages
| Machine | Power | Rated capacity / ROC | Operating weight | Standard / high flow |
|---|---|---|---|---|
| Classic S650 | 74 hp | 2,690 lb ROC | 7,901 lb | 23 / 30.5 US gpm |
| Classic T650 · solid undercarriage | 74 hp | 2,500 lb ROC | 8,980 lb | 23 / 30.5 US gpm |
T650 track numbers: width is only the first dimension
The T650 track set has 320 mm and 450 mm widths, with 86 mm × 52 links or 84 mm × 53 links constructions. Those pitch/link combinations are separate products. Photograph the marking on the existing track, then record width, pitch, links and tread.
| Part number | Width × pitch × links | Tread / grade |
|---|---|---|
| 6680149 | 320 × 86 × 52 mm | C tread · premium |
| 7316760 | 320 × 86 × 52 mm | C tread · standard |
| 7261331 | 320 × 84 × 53 mm | Multi-bar lug |
| 6680150 | 450 × 86 × 52 mm | C tread · premium |
| 7316761 | 450 × 86 × 52 mm | C tread · standard |
| 6988320 | 450 × 84 × 53 mm | Multi-bar lug |
T870 starts with the suspension
A T870 Roller Suspension track uses 450 × 86 × 58 or 450 × 84 × 60 geometry. Torsion Suspension uses 450 × 60 × 86. Put the suspension type beside the old track number before selecting the replacement pair.
E35: a different mounting and hydraulic task
The E35 25 hp configuration has 3,492 kg working mass and 18.5 kW engine power. Its 63.9 L/min auxiliary flow is an excavator working-tool circuit, separate from the S/T loader plate system. A hammer, rotating grapple or tilt bucket order also identifies the pin arrangement, circuit direction and controls.
A complete Bobcat procurement list
For a loader: model/serial, standard or high-flow circuit, mounting plate, hydraulic couplers and attachment electronics. For tracks: old marking, width/pitch/links, suspension and quantity. For an excavator repair: cylinder location, old assembly number, pump or engine plate and the part quantity. Add service filters and wear tools to the same order.
