CAT 308BSR Rubber Tracks 450x71x86
Replacement rubber tracks for the CAT 308BSR machine. This track size is 450x71x86. If you are replacing worn tracks, have your machine model and track size available so we can help confirm the correct replacement.
Track Size
Recommended Track Pattern Images
These images are the recommended track pattern images associated with the machine, track size and guide information in the Track Lug Guide.
Machine Information
Brand: CAT
Model: 308BSR
Equipment Type: —
Track Information
Track Size: 450x71x86
Width: 450 MM
Pitch: 71 MM
Links: 86
Tread Options
Multiple tread options may be available for this track size. Tread selection can depend on the machine and application.
If you are not sure which tread pattern you need, contact us and we can discuss the available options with you.
Drive Components / Machine Notes
| Product Type | Part # | OEM Part Number |
|---|---|---|
| BOTTOM ROLLER | BR133 | 127-3806/BA4310800 (OUTER) |
| BOTTOM ROLLER | BR137 | 127-3807 (CENTER) |
Machine component information may include multiple possible configurations. Confirm your machine configuration and current component availability before ordering.
Track Pads / Steel Track Information
| Product Type | Part # | Width | Pitch | Pad Link Count | Notes |
|---|---|---|---|---|---|
| BOLT ON PAD | B4502 | 450 | 154 | 78 | BOLT/HOOK HYBRID Premium rubber pad with hybrid bolt and hook installation. A fixed clip hook on one end and bolts that fit your pre-existig bolt holes in the grousers on the other side. Reduces installation time and hardware by fifty percent with the reassurance of a bolt-on solution. |
| BOLT ON PAD | B4518 | 450 | 154 | 78 | |
| BOLT ON PAD | B4568 | 450 | 135 | 78 | K-TREAD Heavy-duty high tensile strength rubber pad that securely bolts to the pre-drilled holes in the steel grouser. Hardware is provided. 450 x 154 steel track groups require 76-82 pads per track depending on your model. |
| CLIP ON PAD | C4501 | 450 | 135 | 78 | STANDARD DUTY - DUAL CLIP Standard-duty 18-inch wide traditional clip-on style that bolts on each side of your steel grouser. Ideal for steel tracks that do not have pre-drilled bolt holes. Typically 76-80 pads per track depending on your exact model. |
| CLIP ON PAD | C4556 | 450 | 135 | 78 | HEAVY-DUTY K-TREAD FIXED CLIP Heavy-duty 18-inch wide clip-on style rubber pad with a fixed clip on one side and a bolt-on clip on the other side. Faster installation with half the hardware required. Ideal for steel tracks without pre-drilled bolt holes. |
| ROADLINER PAD | R4507 | 450 | 154 | 78 | STANDARD DUTY ROADLINER |
| ROADLINER PAD | R4513 | 450 | 154 | 78 | HEAVY DUTY ROADLINER |
| ROADLINER PAD | R4563 | 450 | 154 | 78 | HEAVY DUTY K-TREAD ROADLINER Heavy-duty 18 Inch wide Roadliner-style rubber pad with interlocking design. Bolts directly to the chain. Includes 12.0 grade hardware. Replaces OEM: 21W-32-261111, 7338851 |
About the 450x71x86 Rubber Track Size
The track information shown on this page identifies a rubber track measuring 450 MM wide, with a 71 MM pitch and 86 links. These measurements are important when replacing rubber tracks because the replacement track needs to match the machine's required specifications.
Rubber tracks can wear differently depending on operating conditions, the type of surface the machine works on, and the amount of use. Checking the existing track before ordering can help reduce the possibility of selecting an incorrect size.
How to Confirm Your CAT 308BSR Track Size
Before ordering replacement rubber tracks, check the markings on your existing track when possible. The track width, pitch, and number of links are useful information when confirming the replacement size.
If you already know that your CAT 308BSR uses 450x71x86 tracks, provide that information when you contact us so we can help review the available replacement options.
When to Replace CAT 308BSR Rubber Tracks
Common Wear Signs
- Cracks or visible damage in the rubber
- Excessive tread wear
- Missing or damaged tread sections
- Exposed or damaged internal components
Before Ordering
- Confirm the machine model
- Check the existing track markings
- Confirm width, pitch and links
- Have your machine information ready when calling
More Rubber Track Information
Compact Track Loader Rubber Tracks
Learn more about replacement rubber tracks for compact track loaders and tracked equipment.
Need Help Identifying Your Rubber Tracks?
If you are unsure about your rubber track size, machine model, or tread pattern, visit our guide for information about identifying the correct rubber track.
Need CAT 308BSR Rubber Tracks?
Have your machine model and rubber track size available when you contact us. We can discuss the available replacement options and help you determine what information is needed to complete your order.