Bobcat T-Series fitment cannot be reduced to one width per frame size. TrackTECH's governed catalog contains several models with multiple merchant-confirmed widths, plus a few applications that still require exact-size verification before they are safe to release by model alone.
Bobcat T-Series Track Size Chart
| Model | Current TrackTECH fitment | What to know |
|---|---|---|
| T550 | 320x86B49 primary; 400x86B49 alternative | 400mm requires confirmation before changing width |
| T590 | 320x86B49 or 400x86B49 | Both merchant-confirmed; exact-size confirmation required |
| T595 | 320x86B49 / 400x86B49 candidates | Supplier cross-reference only; not release-ready by model alone |
| T630 | 320 / 380 / 400 / 450 x 86B x 52 | Merchant-confirmed alternatives; verify installed width |
| T650 | 320 / 380 / 400 / 450 x 86B x 52 | Merchant-confirmed alternatives; verify installed width |
| T740 | 400x86B55 or 450x86B55 | Merchant-confirmed; exact-size confirmation required |
| T750 | 400x86B55 or 450x86B55 | Merchant-confirmed; exact-size confirmation required |
| T770 | 400x86B55 or 450x86B55 | Merchant-confirmed; exact-size confirmation required |
| T76 | 320x86B53 primary; 400x86B53 and 450x86B53 alternatives | Confirm before changing width |
| T86 | 450x86B58 | Merchant-confirmed primary |
| T870 | 450x86B58 suspension mount; 450x86B60 torsion mount | Undercarriage configuration is critical |
The T870 Exception Matters
The Bobcat T870 is a good example of why a model-only chart can be dangerous. TrackTECH has a merchant-confirmed 450x86B58 primary fitment for the suspension-mount configuration and a merchant-confirmed 450x86B60 option for the torsion-mount configuration. Do not substitute one for the other without identifying the undercarriage.
Why Some Bobcat Models Show Multiple Widths
Several T-Series machines have more than one confirmed width with the same pitch and link count. That does not mean every machine should be converted to every listed width. Treat alternative widths as governed fitment options that still require the installed track or undercarriage to be checked.
How to Confirm a Bobcat Track
- Read the full molded track size.
- Match width, pitch, links, and guide family.
- Check any undercarriage-specific notes such as T870 torsion versus suspension mount.
- If a fitment is marked confirmation-required, verify before ordering rather than relying on a generic web chart.
After the size is confirmed, choose tread for the jobsite using our tread-pattern guide. For machine-level confirmation, use the Rubber Track Finder or call (850) 816-7898.