| Engine HP&the year | Drive Type | Art No. | No. Blade | Diam. | Pitch | Rotation |
| 6-15HP 2-1/2" Gearcase 6, 8, 9.9 and 15 HP 2‑Strokes...1986 & Newer 10, 15 HP Seapro/Marathon...1995-2010 8/9.9 HP (Not Bigfoot) 4‑Strokes...2002‑2004 15 HP(2&4 Stroke)...1989‑2006 (FORCE)9.9&15HP...1996-1998 | A GROUP 8 tooth spline | SEMA Series | ||||
| S.M2401-9 1/4-9-RH-8 | 3 | 9 1/4 | 9 | RH | ||
| S.M2401-9 1/4-10-RH-8 | 3 | 9 1/4 | 10 | RH | ||
| S.M2401-9 1/4-11-RH-8 | 3 | 9 1/4 | 11 | RH | ||
| S.M2401-9 1/4-12-RH-8 | 3 | 9 1/4 | 12 | RH | ||
| 9.9-20HP 2-1/2" Gearcase 9.9 CT/Bigfoot Model Year 2005 and Newer 15/20 HP 4‑Stroke 2007 and Newer | A GROUP 14 tooth spline | SEMA Series | ||||
| S.M2401-9 1/4-9-RH-14 | 3 | 9 1/4 | 9 | RH | ||
| S.M2401-9 1/4-10-RH-14 | 3 | 9 1/4 | 10 | RH | ||
| S.M2401-9 1/4-11-RH-14 | 3 | 9 1/4 | 11 | RH | ||
| S.M2401-9 1/4-12-RH-14 | 3 | 9 1/4 | 12 | RH | ||
| 25-30HP 3" Gearcase 25hp...1980-1984 28hp...1976-1979 30hp...1979-1990 25hp(4 stroke/not bigfoot)…2006-newer 30hp(4 stroke/not bigfoot)…2006-newer | B GROUP 10 tooth spline | SEMA Series | ||||
| S.M2402-10-11-RH | 3 | 10 | 11 | RH | ||
| S.M2402-10-12-RH | 3 | 10 | 12 | RH | ||
| S.M2402-10-13-RH | 3 | 10 | 13 | RH | ||
| S.M2402-10-14-RH | 3 | 10 | 14 | RH | ||
| S.M2402-10-15-RH | 3 | 10 | 15 | RH | ||
| 25-70HP 3-1/4" Gearcase 25hp Bigfoot(4 stroke)...1999-2005 30hp Bigfoot(4 stroke)...2010-newer 30hp(2&4 stroke)...1994-2005 30hp(sea Pro/Marathon)...1994-newer 35hp...1984-1989 402&500 Models...1974-1984 40hp(2&4 stroke/not bigfoot)...1977-newer 40hp(Sea Pro/Marathon)...1977-newer 45hp...1986-1989 48hp(Mariner)...all years 50hp(2&4 stroke/not bigfoot)...1977-newer 55hp(Mercury/Sea Pro/Marathon)...1995-newer 60hp(4 stroke)(not bigfoot or Sea Pro/Marathon) ...1978-newer 70hp(Model 700)...1983 Force40/50hp...1995-199870hp...1991-1995 75hp...1996-1998 | C GROUP 13 tooth spline Classic Pressed-In Rubber bush type. | Stella Series | ||||
| S.M2403-12 1/4-9-RH | 3 | 12 1/4 | 9 | RH | ||
| S.M2403-11 1/2-11-RH | 3 | 11 1/2 | 11 | RH | ||
| S.M2403-11 5/8-12-RH | 3 | 11 5/8 | 12 | RH | ||
| S.M2403-11 1/2-13-RH | 3 | 11 1/2 | 13 | RH | ||
| S.M2403-11 3/8-14-RH | 3 | 11 3/8 | 14 | RH | ||
| S.M2403-11 1/4-15-RH | 3 | 11 1/4 | 15 | RH | ||
| MEGARA Series | ||||||
| S.M2403-10 7/8-11-RH | 3 | 10 7/8 | 11 | RH | ||
| S.M2403-10 3/4-12-RH | 3 | 10 3/4 | 12 | RH | ||
| S.M2403-10 1/2-13-RH | 3 | 10 1/2 | 13 | RH | ||
| S.M2403-10 3/8-14-RH | 3 | 10 3/8 | 14 | RH | ||
| S.M2403-10 1/4-15-RH | 3 | 10 1/4 | 15 | RH | ||
