NUT 95380-06700 REC95380-06700

Function and technical context

This nut plays a fundamental role in securing critical marine engine components, ensuring the structural integrity of elements subjected to continuous vibrations and temperature changes. It is used in fastening systems for cylinder heads, crankcases, engine supports and other highly responsible threaded joints in four-stroke engines. Its correct tightening guarantees the tightness of joints, prevents the entry of salt water into internal cavities and maintains the alignment of moving parts. Failure or loosening of this nut can cause coolant leaks, loss of tightness in lubrication circuits and water infiltration into the crankcase.

When to replace this part?

It is advisable to inspect and replace this nut when galvanic corrosion, deformation of the head, damaged splines on the stem or loss of load during tightening are detected during maintenance checks. In saline environments, nuts can progressively deteriorate due to oxidation, compromising their holding capacity after one or two seasons of intensive navigation. Replacing these parts preventively at each major engine overhaul avoids costly repairs resulting from leaks and internal corrosion that can affect the reliability of the propeller in navigation.

Equivalent manufacturer part numbers