FLOAT 880596504 REC8M6000359

Function and technical context

The float is a critical component of the fuel delivery system in Mercury, Mariner and MerCruiser engines. Integrated into the petrol tank, it acts as a level sensor through a floating mechanism that regulates the fuel gauge indication on the control console. Its correct operation guarantees an accurate reading of the available fuel, allowing the owner to properly manage refueling during navigation. A faulty float can cause inaccurate readings, making it impossible to know the actual fuel level and causing unplanned stops or the risk of running out of fuel in the water.

When to replace this part?

The float should be inspected during each seasonal maintenance and replaced if it develops cracks, corrosion, loss of buoyancy, or when the fuel gauge stops working properly. Common symptoms include erratic level gauge readings, gauge stuck at maximum or minimum, or constant fluctuations with no correspondence to actual consumption. Replacing the float preventatively during major inspections avoids complicated diagnostics later and ensures the reliability of the fuel system throughout the boating season.

Compatible Mercury Mariner Engines

Equivalent manufacturer part numbers