OEM-specification CAT 5K3931. CTP aftermarket replacement. Part number 5K3932. Compatible with 621F, 621g, 627F, 627g, 980, 980b, D10r, D10T, D10T2.
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.