YAMAHA CONNECTING ROD BEARING 93602-14104

Function and technical context

The connecting rod bearing is a critical component of the engine lubrication system that provides support and allows rotary movement of the connecting rod around the crankshaft. It works under conditions of extremely high pressure and friction, creating an oil film that reduces wear between the connecting rod and crankshaft. Its correct operation is essential to maintain the mechanical integrity of the engine, since failure or premature wear causes excessive friction, generation of abnormal heat and, in severe cases, engine seizure with catastrophic consequences for the propulsion of the boat.

When to replace this part?

Typical symptoms of bearing wear include pronounced clunking or knocking noises coming from the engine block, especially under acceleration, progressive loss of power, and unusual increase in engine temperature due to internal friction. This component must be reviewed and inspected during each seasonal maintenance, and replaced preventively if wear, abnormal friction marks or excessive mechanical play in the connecting rod are detected. Preventive replacement avoids costly offshore engine repairs and ensures operational reliability of the propulsion.

Equivalent manufacturer part numbers