Bobcat T-Series Rubber Track Sizes: T550 to T870 (Full Chart)

Bobcat T-Series Rubber Track Sizes: T550 to T870 (Full Chart)

If you run a Bobcat compact track loader, the first question on every replacement job is the same: what size track does my machine actually take? The Bobcat T-Series spans a wide range of frame sizes, from the compact T550 up to the large-frame T870, and the track that fits one model will not fit the next one up the line. Order the wrong size and you are paying return shipping and burning a workday you did not budget for.

This is a parts-tech guide, not a sales pitch. We will walk through the T-Series lineup, give you the size ranges you can expect by frame class, and — more importantly — show you exactly how to confirm the right size off your own machine so you order once and get back to work.

How Bobcat Track Sizes Are Written

Every rubber track is described by three numbers: width x pitch x links.

• Width is the track's overall width in millimeters (320mm is roughly 13 inches, 450mm is roughly 18 inches).
• Pitch is the distance between the center of one drive lug and the next, also in millimeters.
• Links is the total count of drive lugs (the teeth on the inside that the sprocket grabs) around the loop.

A track stamped 450x86x56 is 450mm wide, with an 86mm pitch and 56 links. All three numbers have to match. A track that is the right width but has the wrong link count will not wrap your machine correctly. If you want the full breakdown on reading these numbers, our guide to rubber track sizes covers it in detail, and the TrackTECH track size chart lets you cross-reference by model.

Bobcat T-Series Track Size Chart

The T-Series is built on several frame sizes. Smaller-frame loaders run narrower tracks; large-frame loaders run wider tracks to spread the weight and add flotation. Below is a general size guide by model. Bobcat ran multiple production years and configurations, so always verify against the size molded on your existing track before ordering.

These ranges reflect the most common factory configurations. Link counts in particular can vary by production run, so treat the table as a starting point and confirm the exact number off your machine.

Small-Frame T-Series (T550, T590, T595)

The small-frame loaders are the lightest-duty machines in the line and run a 320mm (13") track. They are popular with landscapers and grading contractors who need a smaller footprint and lower ground pressure. Because these machines are lighter, track life often runs long when the undercarriage is maintained.

Mid-Frame T-Series (T630, T650)

Mid-frame loaders still run a 320mm track but on a longer, heavier chassis with more link count. These are workhorse machines for general construction. If you are replacing tracks on a T650, our Bobcat T650 track size guide goes deeper on that specific model.

Large-Frame T-Series (T740, T750, T770, T870)

This is where the tracks get wide. Large-frame loaders carry more weight and more hydraulic power, so they run 450mm (18") tracks to keep ground pressure manageable. The T870 is the flagship and takes the highest link count in the family. These machines work hard, and tread pattern choice matters here — pick based on your ground conditions, not just the lowest price.

How to Confirm Your Exact Bobcat Track Size

Do not order off the model number alone. Here is the reliable way:

1. Read the molded size on your old track. Look on the outer edge or between the lugs for a stamp like 450x86x56. This is the single best source of truth. Worn stamps can be hard to read — wipe the rubber clean and check both tracks.
2. Count the links yourself. If the molded number is gone, count the drive lugs around the inside of the loop. That gives you the link count directly.
3. Check your machine's serial plate. Some configuration changes are tied to serial number ranges.
4. Call it in. If you are unsure, send your make, model, year, and a photo of the old track stamp to our team at (850) 816-7898 and we will confirm fitment before you buy.

Choosing a Tread Pattern for Your T-Series

Width and link count get the track on the machine. Tread pattern decides how it performs. The three common options:

• C-Block / block tread — smooth ride, good on hard surfaces and pavement, easier on turf.
• Zig-zag / multi-bar — more bite in mud, dirt, and loose material.
• Aggressive / terrain tread — maximum traction for steep, soft, or sloppy ground.

For a full breakdown, see our tread pattern guide. If you already know what you want, you can shop directly by pattern: C-Block tread, zig-zag tread, or multi-bar tread.

FAQ

Will a T770 track fit a T870? No. The T870 typically runs a higher link count than the T770 even though both are 450mm wide. Match all three numbers — width, pitch, and links — before ordering.

Are all Bobcat T-Series tracks 450mm wide? No. Small and mid-frame models (T550 through T650) commonly run 320mm (13") tracks. Only the large-frame models run 450mm (18").

How do I know if my tracks need replacing? Watch for cracked or chunked lugs, exposed steel cord, missing drive lugs, or tread worn nearly smooth. If the bars are gone and you are losing traction, it is time.

Do you ship tracks for the whole T-Series? Yes. We stock tracks across the Bobcat T-Series with fast, free shipping and a 24-month warranty. If you are not sure which size you need, call us first.

Order the Right Bobcat Track the First Time

Get the size right and the rest is easy. Browse our full lineup of Bobcat skid steer rubber tracks, or shop all skid steer and CTL tracks. Not sure which size your machine takes? Call our techs at (850) 816-7898 — we do this all day and we will confirm fitment before you spend a dime. Heavy duty comes standard, backed by a 24-month warranty and fast, free shipping.