Product Description
Which Width Is Right for Your 239D3?
- Factory-installed width on most 239D3s
- Lower tension on rollers → longer undercarriage life
- Best for hard surfaces: concrete, asphalt, packed gravel
- Better maneuverability in tight spaces
- SKU: B320x86x49NMSB-CR239D3
- Distributes 239D3's 7,434 lbs weight over a larger footprint
- Reduces psi → less lawn & turf damage
- Ideal for soft/wet ground, mud, landscaping work
- Larger footprint absorbs more impact — softer ride on rough terrain
- SKU: B400x86x49NMSB-CR239D3
Not sure which to choose? Most 239D3s leave the factory with 320mm tracks, but all widths install on the same undercarriage without modification. Or just call us at 800-966-6640 and tell us your machine — we'll match you in 30 seconds.
Non-Marking Split Bar Tread — Is It Right for Your Work?
The Non-Marking Split Bar combines the bidirectional traction and smooth ride of the Split Bar pattern with a white rubber compound that won't mark finished surfaces. Perfect for indoor construction, renovations on existing floors, and warehouse environments where both traction and surface protection matter. See all available patterns at the bottom of this page.
Know Your Machine: Caterpillar 239D3 Undercarriage Facts
The 239D3 is a radial-lift Caterpillar compact track loader with a 2,185 lb rated operating capacity and 2 available track widths — 320mm (12.6") and 400mm (15.7"). At approximately 7,434 lbs operating weight, it delivers strong pushing and lifting performance for landscaping, site prep, grading, and utility work.
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 |
| Steel Cords | Acid-washed · continuous cord layer | Carry tensile load · prevent stretching |
| Rubber Compound | Non-marking white rubber · premium compound | Won't leave black marks on finished surfaces |
| Lug Height | ~1" nominal new depth | Replace when worn below ⅓ remaining |
Track Dimensions
| Size | Width | Pitch | Links | SKU |
|---|---|---|---|---|
| 320mm Width | 320mm (12.6") | 86mm | 49 | B320x86x49NMSB-CR239D3 |
| 400mm Width | 400mm (15.7") | 86mm | 49 | B400x86x49NMSB-CR239D3 |
*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.
