OEM-specification CAT Bearing. Part number 4W5702-030. Compatible with 16G, 245, 24H, 5110B, 578, 589, 621E, 623E, 627E, 631D, 631E, 631G, 633E II, 637D, 637E, 637G, 651E, 657E, 769C, 769D, 771C, 771D; Engine: 3406, 3406B, 3406C, 3408, 3408B, 3408C, 3408E, 3412, 3412C, 3.
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.