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| Item | Specification |
|---|---|
| Part Number | 21T-32-00025 |
| Alternative Part Numbers | 21T3200025, KM3458/49 |
| Product Name | Track Link Assembly / Track Chain |
| Product Type | Undercarriage Component - Track Chain (Links, Pins & Bushings) |
| Compatible Machine Models | Komatsu PC2000, PC2000-8, PC2000-11 Mining Excavator |
| Total Assembly Weight | 3,600 kgs (7,937 lbs) |
| Track Type | Sealed & Lubricated Track (SALT) |
| Application | Track chain foundation for mining excavator undercarriage |
| Industry Focus | Surface Mining, Heavy Excavation, Overburden Removal |
Komatsu 21T-32-00025 track link assembly
PC2000 track chain
21T3200025 undercarriage parts
KM3458/49 track link
3600 kg track chain for PC2000
Replacement track link assembly for Komatsu PC2000
Komatsu mining excavator track chain
PC2000-8 sealed lubricated track
The Komatsu 21T-32-00025 Track Link Assembly is a genuine OEM-specification undercarriage component designed for the Komatsu PC2000 series mining excavators (PC2000, PC2000-8, PC2000-11). This track link assembly includes the track links, pins, and bushings that form the track chain - the foundation of the crawler undercarriage system.
Note: This is the track chain assembly only. Track shoes (pads) are sold separately and must be attached to complete the track system.
The PC2000 series are ultra-class mining excavators used in large-scale surface mining, heavy excavation, and overburden removal. This track chain features a sealed and lubricated track (SALT) design, which significantly extends undercarriage life by using internal grease lubrication and floating seals to keep contaminants out and reduce internal pin/bushing wear.
| Feature | Benefit |
|---|---|
| Complete Track Chain Assembly | Includes links, pins, and bushings - ready for shoe attachment |
| Sealed & Lubricated Track (SALT) | Internal grease lubrication and floating seals reduce internal pin/bushing wear |
| Heat-Treated Components | Induction-hardened pins, bushings, and link rails for maximum wear resistance |
| Heavy-Duty Construction (3,600 kg) | Built for ultra-class mining excavators |
| PC2000 Series Optimized | Specifically engineered for PC2000, PC2000-8, PC2000-11 |
| KM3458/49 Configuration | Industry-standard track link configuration |
| Precision Assembly | Factory-assembled to ensure proper pitch and alignment |
| Specification | Detail |
|---|---|
| Machine Models | Komatsu PC2000, PC2000-8, PC2000-11 |
| Machine Type | Ultra-Class Mining Excavator |
| Operating Weight | ~200,000 - 210,000 kg |
| Bucket Capacity | ~12.0 - 15.0 m³ |
| Engine Power | ~800-900 HP |
| Track Type | Sealed & Lubricated (SALT) |
| Parameter | Detail |
|---|---|
| Assembly Weight | 3,600 kg |
| Alternative Part Number | KM3458/49 |
| Track Type | Sealed & Lubricated |
| Material | High-strength alloy steel |
| Heat Treatment | Induction-hardened pins, bushings, rails |
| Component | Part Number | Description |
|---|---|---|
| Track Shoes | Various | Track pads (sold separately) |
| Idler | 21T-30-00540 / 21T-30-00590 | Front idler (1,390 kg) |
| Top Roller | 21T-30-00560 / 21T-30-00220 | Carrier roller (152 kg / 130 kg) |
| Bottom Roller | 21T-30-00550 / 21T-30-00211 | Single flange roller (345 kg / 340 kg) |
| Sprocket | 21T-27-71173 | Drive sprocket (251 kg) |
Shoes Required: Track shoes are not included and must be ordered separately
Lifting Requirement: Due to weight (3,600 kg / 3.6 metric tons), specialized heavy lifting equipment is mandatory
Professional Installation: Requires trained personnel and appropriate heavy equipment
Track Tension: Set proper track sag according to Komatsu specifications after shoe installation
Regular Inspection: Monitor pin/bushing extension and link wear periodically
Lubricated Track: No field lubrication required for sealed joints
| Condition | Action |
|---|---|
| New chain - minimal pin/bushing wear | Normal operation |
| Pin/bushing wear within spec | Continue monitoring |
| Pin/bushing wear exceeds spec | Replace track chain |
| Link rail wear exceeds spec | Replace track chain |
| Broken links or pins | Replace immediately |
| Item | Detail |
|---|---|
| Part Number | 21T-32-00025 / 21T3200025 / KM3458/49 |
| Type | Track Link Assembly (Chain only) |
| Weight | 3,600 kg per assembly |
| Compatibility | Komatsu PC2000, PC2000-8, PC2000-11 |
| Includes | Links, pins, bushings |
| Note | Track shoes sold separately |
| Packaging | Single assembly (crated) |
Note: This is the track link/chain assembly only. Track shoes (pads) must be ordered separately and attached to complete the track system. Due to its extreme weight (3,600 kg / 3.6 metric tons / 7,937 lbs), specialized heavy lifting equipment, transport trailers with adequate capacity, and professional installation are mandatory. Verify machine serial number and undercarriage configuration before ordering.
