YAMAHA BOLT 6H3-11633-00 REC6H3-11633-00

Function and technical context

The 6H3-11633-00 bolt is a critical fastening element on Yamaha outboard motors, responsible for securing structural and functional components of the engine block. This bolt works in the engine fastening system, supporting constant vibrations and mechanical forces derived from combustion and power transmission. Its correct tightening and condition is essential to maintain the structural integrity of the propeller and avoid misalignments that compromise the operation of the marine equipment.

When to replace this part?

Bolts can suffer from corrosion, vibration loosening, or material fatigue after years of exposure to saline environments and thermal cycling. It is recommended to check the condition and tightness of all bolts during annual maintenance checks, especially before the intensive navigation season. Preventively replacing damaged or corroded bolts prevents sudden breakdowns at sea and guarantees the structural safety of the engine.

Equivalent manufacturer part numbers