Yamaha 6G5-45941-00-EL Aluminum Boat Propeller 15 1/4 x 15

The Yamaha 6G5-45941-00-EL is a genuine OEM aluminum propeller sized at 15-1/4 inches diameter with 15 inches of pitch — a combination that represents a balanced all-around performance envelope rather than a top-speed or hole-shot extreme. OEM designation matters here in a specific engineering sense: Yamaha manufactures these propellers to the exact hub spline geometry, blade angle tolerances, and balance specifications validated for their compatible engine families. Aftermarket propellers at this pitch and diameter exist at lower prices, but hub tolerance deviations and blade geometry differences can introduce vibration signatures and efficiency losses that accumulate over a season of use.

Aluminum construction is the appropriate material choice for the majority of recreational boaters — it is lighter than stainless steel, resists corrosion adequately in both fresh and salt water with proper post-use rinse maintenance, and sacrifices itself controllably in a grounding or debris strike, bending before transferring destructive energy to the prop shaft and gearcase. This propeller is sold as a single unit, targeted at replacement buyers restoring a vessel to factory-spec performance after propeller damage or wear. Fitment verification against your specific engine model and year is essential — Yamaha part numbers are not universal across engine families, and the part number revision from -EL to -00-00 suffix should be accounted for when cross-referencing parts documentation.