OEM-specification Caterpillar Bearing. Part number 7n7444. Compatible with 14g, 16g, 3176, 3176b, 3304, 3306, 3306b, 3406b, 3406E, 3512, 615c, 621, 621E, 621r, 815b, 966c, 966D, 966F, 966F ii, 980c, 980F, c-10, c-12, D25c, D300b, D30c, D350c, D35c.
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.