Rotation:Right. Spline tooth:8. Fits for outboard engine: Mercury
Mercury Propeller application:
6-15HP.
2-1/2" Gearcase.
6, 8, 9.9 and 15 HP 2‑Strokes 1986 & Newer;
10, 15 HP Seapro/Marathon 1995 & Newer;
8/9.9 HP (Not Bigfoot) 4‑Strokes 1995‑2004;
15 HP 4 Stroke 1989‑2006
Please check carefully your original brand, diameter, pitch, SPLINE TOOTH before order. If you are not sure whether you order a correct one, please feel free to contact us. We usually will response within 30 minutes. Thank you.