Product Description
Track Width
- Fits all Caterpillar 257D undercarriages
- SKU: 15X4X42A-CR257D
About the Bar Tread Pattern
The Bar (Multi-Bar) pattern maximizes ground contact area, giving a stable, even footprint on flat terrain. The continuous bar design distributes weight across a larger surface than lug patterns, which improves stability during lifting and loading on firm, level ground. A good fit for warehouse yards, paved lots, and flat jobsites.
Know Your Machine: Caterpillar 257D Undercarriage Facts
The 257D is a vertical-lift Caterpillar compact track loader with a 2,800 lb rated operating capacity. At approximately 8,048 lbs operating weight, it delivers strong pushing and lifting performance for landscaping, site prep, grading, and utility work. Here's what that means for your track purchase:
What's Inside the Track
| Component | Specification | Why It Matters |
|---|---|---|
| Iron Cores | Drop-forged steel embeds · pitch-spaced | Maintain track shape · resist deformation under load · engage sprocket cleanly |
| Steel Cords | Acid-washed · continuous cord layer | Carry tensile load · prevent stretching · hold pitch dimension over time |
| Rubber Compound | Wear-resistant · premium bonding agent | Protects cords from moisture · bonds all layers · absorbs impact on hard surfaces |
| Bar Tread | Continuous bar design for maximum contact area | Stable on flat surfaces. Less aggressive for off-road conditions. |
| Lug Height | ~1" nominal new depth | Replace when worn below ⅓ remaining — traction loss accelerates past that point |
Is It Time to Replace Your 257D's Tracks?
| What You're Seeing | What It Means | Action |
|---|---|---|
| Exposed steel cords | Carcass worn through — moisture will corrode cords | Replace immediately |
| Flat or missing lugs | Tread depth below ⅓ of original 1" — traction loss | Plan replacement soon |
| Track won't hold tension | Carcass has stretched beyond adjuster range | Replace track · inspect adjuster |
| Cracks around guide bars | Aging rubber · UV damage · abrasive turning | Monitor closely, plan replacement |
| Track jumping off | Tension too loose OR guide bar/idler damage | Check tension first · inspect guide bars |
At 8,048 lbs operating weight the 257D accelerates track wear faster than lighter machines. On abrasive surfaces (concrete, asphalt), expect 1,200–1,500 hours from quality replacement tracks. Soft-ground or dirt-only work can extend this considerably.
Track Dimensions
| Size | Width | Pitch | Links | SKU |
|---|---|---|---|---|
| 381mm Width (381×101.6×42) | 381mm (15") | 101.6mm | 42 | 15X4X42A-CR257D |
*Product names are used to describe the correct application and do not indicate affiliation or endorsement by the respective equipment manufacturer. Caterpillar® is a registered trademark of Caterpillar Inc.. ⚠ Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and reproductive harm. For more information visit www.P65Warnings.ca.gov.
*The product name is intended to describe the correct application and does not indicate affiliation or endorsement of the respective machine maker.
