The Bobcat T870 is listed with more than one build of the same 450 mm track. Match link count to what is on the machine now. Free freight to the lower 48, 24-month warranty.
Bobcat T870 track options
- 450x86x60 — 450 mm (18") wide, 86 mm pitch, 60 links
- 450x86x58 — 450 mm (18") wide, 86 mm pitch, 58 links
Same tread width on all of them — what changes is pitch and link count, which is set by the sprocket and roller frame. Read the numbers off the inside of the old track rather than going by model year; these were built across more than one undercarriage spec.
Tread choice for the Bobcat T870
Size gets the track on the machine; tread decides how it works and how long it lasts. What we stock for this one:
- C-Block — concrete, asphalt and hard-packed ground. Longest wear life and the least vibration on hard surfaces
- Zig-Zag — general mixed ground. Balanced traction with a smoother ride than a bar tread
- Multi-Bar — mud, snow and soft ground. Deep bar lugs bite and shed material instead of packing up
- X-Terrain — the worst ground you have. Aggressive lugs for mud, slope and loose fill
- All-Terrain — everything in between. A compromise tread when the machine moves between surfaces
- Z-Max — soft and slippery ground. An aggressive zig-zag with more bite
If the machine splits its time between surfaces, buy for the ground you are on most — a hard-surface tread on constant mud will spin, and a bar tread on concrete will wear out in half the hours.
Fitment notes
Bobcat T870 track fitment depends on the installed undercarriage. Suspension Mount uses 450x86x58; Torsion Mount uses 450x86x60. Confirm the undercarriage configuration before ordering.
Bobcat T870 at a glance
- Operating weight — 12,745 lb
- Engine — 100 hp
Undercarriage parts for the Bobcat T870
Rollers, idlers and sprockets wear on the same clock as the track. Fitting new rubber over a hooked sprocket or a seized roller is the fastest way to lose the new track — check these while the tracks are off:
- Drive sprocket — 7165109, 6715821, 7196807, 7227421
- Front idler — 6732902, 6698048, 7276595, 7355129
- Rear idler — 6698049, 7276596
- Bottom roller — 6698047, 7323310
- Undercarriage kit
Where more than one part number is listed, Bobcat changed that component across serial ranges. Match the number stamped on the part you are replacing, or send us the machine serial and we will pick it.
How these wear
CTLs run high ground speed and counter-rotate all day, which is what eats edge lugs and drive lugs first. Replace in pairs where you can: a new track running against a stretched one loads the drive unevenly and you will feel it in the steering.
Same track, other machines
Track size follows undercarriage geometry, not brand, so one of these sizes shows up on machines from several makers. If you run any of these alongside the Bobcat T870, it is the same belt:
- 299D XHP
- Bobcat T830
- Bobcat T86
- Bobcat T870 Suspension Mount
- Bobcat T870 Torsion Mount
- CAT 279C
- CAT 289C
- CAT 299C
- CAT 299D
- CAT 299D2
Not sure which you are running? Read the size off the inside of the old track, or call (850) 816-7898 and we will pull it off the machine record. The Track Finder works by make and model too.
