OEM-specification CAT Bearing. Part number 6Y6134. Compatible with 30/30, 517, 527, D4H, D4H XL, D4HTsK ii, D4HTsK iii, D5H, D5H XL, D5HTsK ii.
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.