BUOY KIT 19273

Function and technical context

The 19273 buoy kit is an essential component of the flotation system in Mercury Mariner engines of various displacements. This piece acts as a safety and level control element within the fuel circuit and buoyancy systems, guaranteeing the stable operation of the engine in variable navigation conditions. Its correct operation is critical to maintain the hydrostatic stability of the boat and prevent water from entering the sensitive circuits of the propeller. When the buoy degrades or loses buoyancy, the motor may experience irregular power issues or failures of built-in safety systems.

When to replace this part?

Common symptoms of buoy aging include progressive loss of buoyancy, cracks in the structure, detachment of protective coatings and visible corrosion in docking areas. It is recommended that this component be visually inspected at each seasonal maintenance, especially after prolonged exposure to salt water or demanding boating conditions. The preventive replacement of the buoy kit before it breaks down avoids unexpected stops in navigation and ensures that all engine safety systems function within their design parameters.

Compatible Mercury Mariner Engines

Equivalent manufacturer part numbers