CONNECTING ROD FOOT BEARING 29-13304M

Function and technical context

The 29-13304M connecting rod bearing is a critical component of the marine propulsion system that guarantees the correct transmission of power from the crankshaft to the connecting rod and, consequently, to the propeller. This bearing supports the radial and axial loads generated during combustion cycles, maintaining precise alignment of the drive shaft under demanding operating conditions typical of the marine environment. Its degradation or wear directly affects the fluidity of the engine rotation, reducing the efficiency of the propeller and potentially compromising the mechanical integrity of the engine block during prolonged navigation.

When to replace this part?

Symptoms of wear in connecting rod bearings include abnormal metallic noise at the base of the engine, excessive vibration during acceleration and progressive loss of power with no obvious cause in power or ignition. Although there is no fixed hourly interval for this component, it is recommended that it be visually inspected and checked for clearance during each seasonal maintenance, especially if vibration anomalies are detected. Preventive replacement during major overhauls avoids costly emergency repairs at sea and ensures engine operational continuity.

Engine Compatibility

Mercury/MerCruiser

Equivalent manufacturer part numbers