OEM-specification Komatsu Bearing. Part number 6210-21-8010**. Compatible with WA500, EGS500, EGS570, EGS630, HM350, HM400; Engine: S6D140, S6D140E, SA6D132, SA6D140, SA6D140A, SA6D140E, SAA6D140E.
Always verify with serial number before ordering.
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Never strike bearings directly — use a bearing press or driver set. Heat housing (not bearing) to ease installation. Replace bearings in sets where applicable. Check housing bore diameter before fitting — out-of-round bores destroy new bearings.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.