Six T650 original track configurations
The T650 catalog uses separate original numbers for premium C-pattern, standard C-pattern and multi-bar tread in narrow and wide configurations.
| Part number | Width × pitch × links | Tread / grade |
|---|---|---|
| 6680149 | 320 × 86 × 52 | Premium C-pattern |
| 7316760 | 320 × 86 × 52 | Standard C-pattern |
| 7261331 | 320 × 84 × 53 | Multi-bar lug |
| 6680150 | 450 × 86 × 52 | Premium C-pattern |
| 7316761 | 450 × 86 × 52 | Standard C-pattern |
| 6988320 | 450 × 84 × 53 | Multi-bar lug |
6988320 has a current replacement number
The original wide multi-bar track 6988320 is replaced by 7320104. The current 7320104 is 450 mm wide with 86 mm pitch, 52 links and 30 mm lug height. Keep the old number and the current replacement number on the same purchasing line.
| Part | Width | Pitch | Links |
|---|---|---|---|
| 6988320 original entry | 450 mm | 84 mm | 53 |
| 7320104 current replacement | 450 mm | 86 mm | 52 |
Compare actual replacement supply choices
The Huanball C-lug products below are separately branded replacement goods. The original Bobcat numbers remain part-identification entries on the repair list.
| Product | Size | Order quantity |
|---|---|---|
| 320×86×52 C-lug | 320 × 86 × 52 | 1 track / 2 for pair |
| 450×86×52 C-lug | 450 × 86 × 52 | 1 track / 2 for pair |
Pitch and count are separate measurements
The pitch is measured between successive drive positions; link count is the number around the loop. 86 × 52 is 4472 mm nominal pitch length, while 84 × 53 is 4452 mm. Similar loop lengths do not describe the same drive pitch. Record all three dimensions and the old track marking.
Choose tread with the work surface
C-pattern and block tracks use larger spaced blocks; multi-bar tracks use more transverse tread bars. Multi-bar designs distribute ground contact and ride impulses across more lugs. A mixed fleet order should put size, tread and supplied grade on each line.
A track repair can include its rolling components
List each sprocket, bottom roller, front or rear idler by its installed number. Keep the track pair as one quantity line and the rolling-component replacements as separate lines. This creates a complete undercarriage shipment without treating all T650 variants as one parts set.
