In-stock replacement 6240-21-2220 (also 6240212220) cylinder liners for heavy-duty Komatsu 6D170 series engines. Precision-engineered for mining and construction equipment durability.
| Part Number | 6240-21-2220 / 6240212220 | Engine Model | 6D170, S6D170, SA6D170, SAA6D170E |
|---|---|---|---|
| Product Name | Diesel Engine Cylinder Liner / Sleeve | Material | High-Boron Alloy Cast Iron |
| Condition | Brand New, OEM Standard | MOQ | 1 Piece |
| Payment | T/T, Western Union, MoneyGram | Stock | Ready to Ship (Fast Dispatch) |
| Equipment Category | Compatible Komatsu Models |
|---|---|
| Crawler Excavators | PC1250-7, PC1250-8, PC1250LC-8, PC1250SP-7 |
| Crawler Dozers | D375A-2, D375A-3, D375A-5, D375A-6 |
| Wheel Loaders | WA600-1, WA600-3, WA600-6 |
| Dump Trucks | HD465-5, HD605-7, HD785-3 |
| Buying Factors | Our OEM-Standard Liner | Standard Aftermarket |
|---|---|---|
| Wear Resistance | High-Phosphorus Iron (Longer Life) | Grey Iron (Faster Wear) |
| Surface Finish | Platform Cross-hatching | Rough Honing |
| Thermal Stability | Zero-Distortion at High Temp | High Expansion Risk |
| Fitment | Precision 6240-21-2220 Specs | Tolerance Issues |
| Corrosion Control | Anti-Cavitation Coating | No Protection |
| Oil Consumption | Optimized Piston Ring Sealing | High Oil Burn Risk |
Q: What causes liner pitting in SAA6D170E engines?
A: Cavitation erosion from coolant vibration. Our 6240212220 liners use thickened walls to resist these implosions.
Q: Why choose this Cylinder Liner?
A: It features an OEM-standard tri-metal structure, trusted by repair shops and global equipment fleets for high-uptime operations.
Identify potential risks during engine maintenance.
Recommend suitable replacement parts for 6D170 models.
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We supply engine assemblies and parts for Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. Inventory includes: Cylinder liners, pistons, rings, bearings, gasket kits, fuel pumps, injectors, crankshafts, turbochargers, and more.
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