The 6211-21-2210 (also searched as 6211212210) is a high-precision cylinder liner specifically engineered for the Komatsu 6D140 engine series. This component is essential for restoring engine compression and ensuring thermal stability in heavy-duty excavators and dozers.
| Model NO. | Komatsu 6D140 / S6D140 / SA6D140 |
| Part Number | 6211-21-2210 / 6211212210 |
| Product Name | Engine Cylinder Liner |
| Type | OEM Standard Replacement |
| Condition | Brand New |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery | DHL, Fedex, EMS, UPS, Air/Sea |
| MOQ | 1 Piece |
| Requirement | Standard Replacement (6211-21-2210) | Common Aftermarket |
|---|---|---|
| 1. Material | High-phosphorus cast iron | Basic gray iron |
| 2. Surface Finish | Precision honing for oil retention | Inconsistent texture |
| 3. Durability | 15,000+ working hours | Unpredictable lifespan |
| 4. Fitment | Exact 140mm bore match | Variable tolerance |
| 5. Thermal Resistance | Optimized heat dissipation | Standard cooling only |
| 6. Value | Reduced long-term maintenance cost | High risk of engine failure |
| Category | Compatible Models |
|---|---|
| Excavators | PC400-6, PC400LC-6, PC450-6, PC450LC-6 |
| Bulldozers | D85ESS-2, D155A-3, D155AX-5 |
| Wheel Loaders | WA470-3, WA500-3 |
| Dump Trucks | HD325-6, HD465-5 |
Our technical team supports operators and repair shops worldwide with expert advice and parts supply.
✔ Identify potential risks during maintenance
✔ Recommend suitable replacement parts if needed
✔ Support both inspection advice and parts supply
Q: Why is my 6D140 engine burning excessive oil?
A: Worn 6211-21-2210 liners often lose their honing pattern, leading to poor oil control. Replacement restores efficiency.
Q: What causes coolant leakage in the crankcase?
A: Typically a failure of the liner seals or cavitation on the 6211212210 outer wall. Immediate replacement is required.
Q: Why Choose This Cylinder Liner?
A: It features an OEM-standard tri-metal structure and is trusted by repair shops and equipment fleets globally.
Contact us for wholesale pricing and express shipping quotes.
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