TAB® KOMATSU Undercarriage Part PC120 Sprocket
Premium PC120 Sprocket for KOMATSU Excavators
The TAB® PC120 sprocket is engineered with precision to deliver exceptional durability and performance for KOMATSU excavators. Crafted from high-grade alloy steel and heat-treated for optimal hardness, this sprocket provides superior resistance against wear and deformation. It ensures perfect engagement with the track chain, resulting in stable movement, reduced vibration, and longer undercarriage life.
As a professional undercarriage part supplier, TAB® focuses on providing top-quality solutions that improve machine productivity and reliability in demanding construction, mining, and earthmoving operations.

Product Parameters
| OEM NO. | PC30 PC 40 PC60 PC100 PC120 PC200-1/2/3/5/6/7 PC210 PC300 PC310 PC400 PC450 D20 D30 D50 D55 D60 D80 D85 D155 | |
| Place of Origin | CHINA | |
| Model | KOMATSU | |
| Product Type | UNDERCARRIAGE PART | |
| Rubber Type | After market、 OEM | |
| Brand | TAB、TRC or Custom | |
| Packing | Standard or Custom | |
| Material | 40MN2 35MNB 50MN2 40CR | |
| Size | Standard | |
| Warranty | 1 Year or more | |
| Packing | TAB、TRC、Customer | |
| Delivery time | One month | |
| Port | Xiamen Port or Customer request | |
| Minimum of Quantity | 200 Pcs | |
Enhanced Durability and Precision Design
Each TAB® PC120 sprocket undergoes strict machining and quality inspection to guarantee dimensional accuracy and flawless fitment with KOMATSU undercarriage systems. Its advanced surface treatment minimizes friction and prevents premature tooth wear, extending both sprocket and chain lifespan. TAB® components are designed to withstand extreme working conditions and provide consistent power transmission even under heavy loads.
TAB® — Your Reliable KOMATSU Parts Partner
With decades of experience in manufacturing high-performance undercarriage components, TAB® delivers complete replacement solutions for KOMATSU, Caterpillar, Hitachi, and other major brands. Our product range includes idlers, rollers, track chains, and sprocket segments that meet international OEM and ISO standards.
Choosing TAB® means partnering with a trusted global manufacturer that values quality, precision, and long-term performance — the perfect partner for wholesalers, distributors, and equipment maintenance companies worldwide.



