Cylinder Liner
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Cylinder Liner
4 items
Cylinder Components
Cylinder Liner Sleeve 3904166 for Cummins ISB QSB – System-Matched
<p><strong>Cylinder Liner Sleeve 3904166 (cross-reference) for Cummins ISB & QSB Engines</strong> — forged nodular cast iron, plateau honed bore, Ra ≤ 0.8 μm surface finish.</p> <ul> <li>Belongs to the cylinder-piston system where liner, piston, rings, and rod bearings must share the same oversize grade (STD / 0.25 / 0.50) for correct clearance and ring seating</li> <li>Confirm block bore history before ordering — a previous rebuild may have changed the required grade, and ISB6.7 CM2250 versus CM2350 B101 variants can carry different internal specs despite the same base family</li> <li>Fits Cummins 4B3.9, 6B5.9, ISB, ISBE, QSB3.9 through QSB6.7, and B-series gas variants</li> </ul> <p>Dimensional grade matched to your engine's rebuild history and shipped as a verified set.</p>
Cylinder Components
Cylinder Liner 3904166 | Overhaul Component for Cummins 4B3.9 6B5.9
<p><strong>Cylinder Liner 3904166 (cross-reference) for Cummins 4B3.9, 6B5.9, ISB, QSB engines</strong> — replacement for high-hour rebuild applications.</p> <ul> <li>Must be matched with piston grade, ring set, and bearing shells based on engine serial and prior overhaul history to maintain correct clearances.</li> <li>Confirm STD or oversize grade before ordering to avoid mid-job mismatch on previously bored blocks.</li> </ul> <p>Dimensional grade and overhaul kit contents verified against your engine build sheet before dispatch.</p>
Cylinder Components
Cylinder Liner Sleeve 3904166 for Cummins 4B3.9 6B5.9 – System-Matched
<p><strong>Cylinder Liner Sleeve 3904166 for Cummins 4B3.9, 6B5.9, ISO-Certified</strong> — compatible with B, ISB, and QSB series engines used in excavators, loaders, and generators.</p> <ul> <li>Belongs to the cylinder block assembly system; must be matched with correctly graded pistons, ring packs, and bearings based on previous bore machining history.</li> <li>Oversize grade and block register dimensions verified against the specific engine serial and CM controller code before dispatch.</li> <li>Overhaul kit contents reconciled line-by-line to prevent rework from missing retention rings or incorrect gasket variants.</li> </ul> <p>Matched cylinder pack and bearing set ship together with dimensional inspection records confirming bore diameter and flange register tolerances.</p>
Cylinder Components
Cylinder Liner Sleeve 3904166 for Cummins ISB/QSB – OEM-Grade Replacement
<p>Stop downtime and costly engine rebuilds—this <strong>OEM-grade Cummins cylinder liner</strong> delivers factory-spec fit, finish, and longevity for ISB and QSB engines without the OEM price tag or wait time.</p> <ul> <li>Direct replacement for part number 3904166 — includes critical interference fit specs (0.025–0.035 mm press-in tolerance) verified per Cummins service bulletin ISB-67-ENG-008</li> <li>Fits 4B3.9, B5.9, ISB6.7 CM2250/CM2350 B101, QSB5.9 CM850, QSB6.7 CM2850, and 15+ other high-utilization variants — no guesswork on cross-reference</li> <li>Made from centrifugally cast GGG-50 nodular iron with precision honed bores (Ra ≤ 0.4 µm) for optimal piston ring seating and oil control</li> <li>Ships same-day from Guangzhou warehouse — no backorders, no counterfeit risk, and full technical verification included with every order</li> </ul>