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612630010055
Sinotruk HOWO Dongfeng FAW
| Attribute | Description |
|---|---|
| Product Name | Wet Cylinder Liner / Cylinder Sleeve |
| Type | Replaceable wet liner (direct coolant contact) |
| Material | High-strength alloy cast iron with boron or chromium doping; high-phosphorus variant for enhanced wear resistance |
| Internal Surface Treatment | Precision plateau honing with cross-hatch pattern to retain oil film and reduce friction |
| Cooling Method | Direct water-cooled (wet liner design) |
| Sealing System | Dual O-ring seals at top and bottom for watertight integration with cylinder block |
| Application | Heavy-duty diesel engines requiring high thermal load capacity and serviceability |
| Parameter | Specification |
|---|---|
| Part Number (OEM) | 612630010055 |
| Bore Diameter (Inner Diameter) | 126.00 mm (standard bore) |
| Outer Diameter (OD) | ~137.80 mm |
| Flange Diameter | ~142 mm |
| Overall Length | ~278–280 mm (varies slightly by revision); some references list 342 mm including flange extension depending on measurement method |
| Liner Protrusion (Standing Height) | 0.05 – 0.12 mm above deck surface (must be measured after installation) |
| Surface Finish | Cross-hatched plateau hone (~0.8–1.2 μm Ra) for optimal ring break-in and oil retention |
| Hardness | Rockwell hardness HRC 50–60 (localized hardening on upper lip) |
| Thermal Conductivity | Optimized for rapid heat transfer from combustion chamber to cooling system |
| Compatibility Standard | Meets Weichai OE specifications for WP12 platform and associated powertrains |
| Attribute | Description |
|---|---|
| Product Name | Wet Cylinder Liner / Cylinder Sleeve |
| Type | Replaceable wet liner (direct coolant contact) |
| Material | High-strength alloy cast iron with boron or chromium doping; high-phosphorus variant for enhanced wear resistance |
| Internal Surface Treatment | Precision plateau honing with cross-hatch pattern to retain oil film and reduce friction |
| Cooling Method | Direct water-cooled (wet liner design) |
| Sealing System | Dual O-ring seals at top and bottom for watertight integration with cylinder block |
| Application | Heavy-duty diesel engines requiring high thermal load capacity and serviceability |
| Parameter | Specification |
|---|---|
| Part Number (OEM) | 612630010055 |
| Bore Diameter (Inner Diameter) | 126.00 mm (standard bore) |
| Outer Diameter (OD) | ~137.80 mm |
| Flange Diameter | ~142 mm |
| Overall Length | ~278–280 mm (varies slightly by revision); some references list 342 mm including flange extension depending on measurement method |
| Liner Protrusion (Standing Height) | 0.05 – 0.12 mm above deck surface (must be measured after installation) |
| Surface Finish | Cross-hatched plateau hone (~0.8–1.2 μm Ra) for optimal ring break-in and oil retention |
| Hardness | Rockwell hardness HRC 50–60 (localized hardening on upper lip) |
| Thermal Conductivity | Optimized for rapid heat transfer from combustion chamber to cooling system |
| Compatibility Standard | Meets Weichai OE specifications for WP12 platform and associated powertrains |