Up for sale is a beautiful vintage solid bronze 3-blade aftermarket boat propeller, specifically engineered for classic mid-century twin-cylinder outboards. This wheel features a highly durable marine bronze casting, ideal both for working mechanical motor restorations or a premium nautical maritime display piece.

Verified Physical Dimensions:

• Total Diameter: 9 Inches

• Center Shaft Bore: 1/2 Inch (0.50" smooth bore setup)

• Hub Internal Diameter: 2.05 Inches

• Drive Style: Traditional Pin-drive with built-in internal clutch-dog engagement ears

• Markings: Factory stamped letter "K" visible on the internal alignment flange flange (Michigan Wheel series application designation).

Confirmed Fitment Profile:

This propeller directly slides onto vintage Outboard Marine Corporation (OMC) pin-drive lower units, specifically matching:

• Johnson Sea-Horse & Evinrude Lightwin / Fastwin 10 HP (1951 - 1957)

• OMC / Evinrude Super Fastwin 15 HP (1953 - 1956)

• Johnson & Evinrude Utility 18 HP Workhorses (1957 - 1973)

Condition Notes:

The propeller is in fantastic shape for its age. The blades are structurally sound and straight with no major edge dings, impacts, or stress fractures. The internal clutch ears are crisp and free of excessive mechanical wear. Has a wonderful natural light golden patina that can be easily polished up to a mirror finish if desired. Please review the caliper photos to confirm fitment sizing for your exact shaft application before purchasing.

Ships promptly and securely wrapped to avoid blade edge friction during transit. Thanks for looking!