BUSHING 23-43052A4

Function and technical context

The 23-43052A4 bushing is a precision component that acts as a support and alignment element in critical Mercury, Mariner and Mercruiser marine engine systems. This type of bushing works in areas where exact tolerance and reduction of friction is required, facilitating the correct functioning of mechanical assemblies subjected to vibration and constant loads. Its failure or premature wear can lead to misalignments, increased clearances, abnormal vibrations and, in advanced cases, cascading breakdowns of adjacent components.

When to replace this part?

Bushings of this type show progressive wear when excessive play, abnormal metallic noises are observed during engine operation or if lateral movement is detected in the assembly where it is housed during dry inspection. It is recommended to check its condition during each seasonal maintenance and, in intensive navigation or in commercial boats, consider its preventive replacement every 5-7 years or according to the general engine overhaul interval. Changing this bushing preventively is an investment that avoids costly repairs to main components in the event of progressive failure.

Equivalent manufacturer part numbers