391-3925 Connecting Rod Group
General Duty Link Group
Description
The link group is driven by the sprocket and final drive, supports the weight of the machine, provides a rail for the machine to travel on, and provides attachment points for the track shoes.
Features
- General duty tracks are designed to be a cost-effective option for machines nearing retirement or with low utilization. Their lower initial price allows them to be run until failure. All Cat® undercarriage systems are backed by the Undercarriage System Guarantee. Manufactured by Caterpillar, they are hardened and quality tested to meet the productivity and performance demands of the job site.
- Cat® Sealed and Lubricated Track (SALT) seals lubricant inside the undercarriage system and keeps abrasives out. It eliminates internal pin and bushing wear, reducing maintenance costs and downtime while extending service life and improving serviceability. Combined with a track design matched to your machine and work environment, SALT provides a versatile undercarriage configuration for a wide range of ground conditions.
Specifications
| Link Inside Spacing at Roller | 102.5 mm (4.035 in) |
|---|---|
| Track Shoe Bolt Hole Spacing A | 68 mm (2.677 in) |
| Rail to Pin Boss Outside Diameter | 46.7 mm (1.839 in) |
| Pin Length | 262 mm (10.315 in) |
| Number of Links | 45 |
| Bushing Outside Diameter | 72.75 mm (2.864 in) |
| Link Inside Spacing at Sprocket | 89.3 mm (3.516 in) |
| Rotating Bushing Track | No RBT |
| Link Height | 132 mm (5.197 in) |
| Track Shoe Bolt Hole Spacing C | 185.3 mm (7.295 in) |
| Bolt Hole Diameter | 20.37 mm (0.802 in) |
| Bolt Size | 3/4 in |
| Number of Track Links | 45 |
| Track Shoe Bolt Hole Spacing B | 137.3 mm (5.406 in) |
| Link Outside Spacing | 183 mm (7.205 in) |
| Pin Retention System | Press Fit |
| Rail to Bushing Outside Diameter | 41.6 mm (1.638 in) |
| Undercarriage System | HD |
| Wear Sensor | No |
| Track Bolt Thread | 0.75 |
| Track Reinforcement System | Not Applicable |
| Master Link Type | 5 Tooth Master |
| Seal and Lubrication Type | SALT |
| Main Bolt Thread | 0.75 |
| Grease Lubricated Track Type | Not Applicable |
| Track Pitch | 203 mm (7.98 in) |
Compatible Equipment
- Cold Planers: PL72
Additional information
| Machine Model | |
|---|---|
| Equipment Type | |
| Part Source | Genuine OEM |








