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21T-27-71173
| Availability: | |
|---|---|
| Item | Specification |
|---|---|
| Part Number | 21T-27-71173 |
| Product Name | Sprocket / Drive Sprocket |
| Product Type | Undercarriage Component |
| Compatible Machine Models | Komatsu PC2000, PC2000-8, PC2000-11, PC2000SR-8 Mining Excavator |
| Single Weight | 251 kgs (553.4 lbs) |
| Material | High-strength alloy steel, induction-hardened teeth |
| Application | Drives the track chain for machine propulsion |
| Industry Focus | Surface Mining, Heavy Excavation, Overburden Removal |
Komatsu 21T-27-71173 sprocket
PC2000 drive sprocket
Komatsu PC2000 undercarriage parts
251 kg sprocket for PC2000 excavator
Replacement sprocket for Komatsu PC2000
Komatsu mining excavator drive sprocket
PC2000-8 track sprocket
PC2000-11 undercarriage sprocket
The Komatsu 21T-27-71173 Sprocket (Drive Sprocket) is a genuine OEM-specification undercarriage component designed for the Komatsu PC2000 series mining excavators (PC2000, PC2000-8, PC2000-11, PC2000SR-8). This sprocket is a critical drivetrain component that engages with the track bushings to propel the machine.
The PC2000 series are ultra-class mining excavators used in large-scale surface mining, heavy excavation, and overburden removal. This sprocket features precision-machined tooth profiles for optimal engagement with the track chain, ensuring efficient power transfer from the final drive to the undercarriage. Manufactured from high-strength alloy steel with induction-hardened teeth, it provides maximum durability in severe mining conditions.
| Feature | Benefit |
|---|---|
| Induction-Hardened Teeth | Exceptional wear resistance and extended service life |
| Precision-Machined Profile | Optimal engagement with track bushings for smooth operation |
| High-Strength Alloy Steel | Maximum durability for ultra-class mining applications |
| Heavy-Duty Construction (251 kg) | Built for the largest mining excavators |
| PC2000 Series Optimized | Specifically engineered for PC2000, PC2000-8, PC2000-11, PC2000SR-8 |
| Direct OEM Replacement | Guaranteed fit and performance |
| Specification | Detail |
|---|---|
| Machine Models | Komatsu PC2000, PC2000-8, PC2000-11, PC2000SR-8 |
| 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 |
| Position | Final drive sprocket |
| Component | Part Number | Description |
|---|---|---|
| Track Assembly | 21T-32-01014 / 21T-32-01017 | Complete track assembly (9,540 kg / 9,350 kg) |
| Idler | 21T-30-00590 | Front idler (1,390 kg) |
| Top Roller | 21T-30-00561 / 21T-30-00221 | Carrier roller (129 kg / 160 kg) |
| Bottom Roller | Various | Lower track roller |
Tooth Inspection: Regularly inspect sprocket teeth for wear; replace when teeth become hook-shaped or worn
Lifting Note: At 251 kg, proper lifting techniques and mechanical assistance are required
Bolt Torque: Follow Komatsu OEM specifications for mounting bolt torque
Alignment: Ensure proper alignment with track chain to prevent premature wear
Track Tension: Maintain proper track tension to extend sprocket and chain life
Replacement: Replace sprocket when tooth wear exceeds OEM specifications
Bolt Replacement: Use new bolts and locking hardware as specified by OEM
| Condition | Action |
|---|---|
| New teeth - sharp profile | Normal operation |
| Moderate wear - rounded profile | Monitor regularly |
| Hook-shaped teeth | Replace immediately |
| Broken teeth | Replace immediately |
| Loose mounting bolts | Retorque immediately |
| Item | Detail |
|---|---|
| Part Number | 21T-27-71173 |
| Type | Sprocket / Drive Sprocket |
| Weight | 251 kg per piece |
| Compatibility | Komatsu PC2000, PC2000-8, PC2000-11, PC2000SR-8 |
| Packaging | Individual crate |
Note: This is a drive sprocket for the Komatsu PC2000 series mining excavators (PC2000, PC2000-8, PC2000-11, PC2000SR-8). Verify machine serial number and undercarriage configuration before ordering. Due to weight (251 kg), proper lifting techniques and mechanical assistance are required during installation. Regular inspection of sprocket teeth is recommended to prevent track chain damage. For complete undercarriage service, consider replacing sprockets and track chains as a set.
