This is a precision-engineered crankshaft main bearing designed to support the rotating crankshaft within the engine block. Manufactured to meet strict OEM tolerances, it provides optimal lubrication and wear resistance, ensuring efficient engine operation unlike a worn bearing. Operators may notice a drop in oil pressure, knocking sounds from the engine, or a general loss of power when this bearing fails.
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.
Early signs of a failing main bearing include a persistent knocking or rattling sound from the engine, especially under load. If left unaddressed, this can lead to increased oil consumption, a significant loss of engine power, and potential crankshaft damage. Continued operation risks severe internal engine damage requiring a costly rebuild.
Ensure the crankshaft journals and bearing saddles in the engine block are perfectly clean and free of any debris before installation. Never reuse old bearing bolts; always use new, properly torqued fasteners.
When replacing crankshaft main bearings, it is essential to also inspect and potentially replace connecting rod bearings and check crankshaft end play.