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422-1129
| Availability: | |
|---|---|
| Item | Specification |
|---|---|
| Part Number | 422-1129 (or 4221129) |
| Product Name | Track Shoe Link Assembly / Complete Track Assembly |
| Product Type | Undercarriage Component - Complete Track System |
| Compatible Machine Models | Caterpillar D7R, D7T Dozer |
| Total Assembly Weight | 1,960 kgs (4,321 lbs) |
| Track Type | Heavy-duty sealed and lubricated track |
| Application | Complete track system for dozer mobility |
| Industry Focus | Construction, Land Clearing, Heavy Dozing, Mining Support |
Caterpillar 422-1129 track shoe assembly
D7R complete track assembly
D7T track link shoe assembly
4221129 undercarriage part
1960 kg track assembly for CAT D7
Replacement track for D7R dozer
Caterpillar dozer track chain
The Caterpillar 422-1129 Track Shoe Link Assembly is a genuine OEM-specification complete undercarriage track system designed for the Caterpillar D7R and D7T dozers. This complete track assembly includes the track links, pins, bushings, and track shoes - everything needed for a full track replacement.
The D7R and D7T are large dozers used in construction, land clearing, heavy dozing, and mining support applications. This track assembly features a sealed and lubricated track design, which significantly extends undercarriage life by using internal grease lubrication and floating seals to reduce internal pin/bushing wear.
| Feature | Benefit |
|---|---|
| Complete Assembly | Ready-to-install track system - links, pins, bushings, and shoes included |
| Sealed & Lubricated Track | Internal grease lubrication and floating seals reduce internal pin/bushing wear |
| Heavy-Duty Construction (1,960 kg) | Robust build for larger dozer applications |
| D7R/D7T Optimized | Specifically engineered for CAT D7 series dozers |
| Extended Service Life | Lubricated design significantly outlasts dry track chains |
| Factory Assembled | Ensures proper alignment and tension |
| Direct OEM Replacement | Guaranteed fit and performance |
| Specification | Detail |
|---|---|
| Machine Models | Caterpillar D7R, D7T Dozer |
| Machine Type | Large Dozer |
| Operating Weight | ~24,000 - 28,000 kg |
| Engine Power | ~230-250 HP |
| Track Type | Sealed & Lubricated |
Complete Assembly: This is a complete track system - ready to install
Lifting Requirement: Due to weight (1,960 kg / 1.96 metric tons), specialized lifting equipment is required
Professional Installation: Requires trained personnel and appropriate equipment
Track Tension: Set proper track sag according to Caterpillar specifications after installation
Regular Inspection: Monitor track wear, pin/bushing extension, and shoe condition periodically
Lubricated Track: No field lubrication required for sealed joints
| Condition | Action |
|---|---|
| New track - full pin/bushing life | Normal operation |
| Pin/bushing wear within spec | Continue monitoring |
| Pin/bushing wear exceeds spec | Replace track assembly |
| Track shoe wear exceeds spec | Replace shoes (if separate) |
| Broken links or pins | Replace immediately |
| Item | Detail |
|---|---|
| Part Number | 422-1129 / 4221129 |
| Type | Track Shoe Link Assembly (Complete Track Assembly) |
| Weight | 1,960 kg per assembly |
| Compatibility | CAT D7R, D7T Dozer |
| Packaging | Single assembly (crated) |
Note: This is a complete, ready-to-install track assembly for the Caterpillar D7R and D7T dozers. Due to its weight (1,960 kg / 1.96 metric tons / 4,321 lbs), specialized lifting equipment and professional installation are required. Verify machine serial number and undercarriage configuration before ordering. The sealed and lubricated track design provides extended service life in demanding conditions.
