Impeller Honda outboard engine: to measure is to know. Impeller cannot return A: 14.20 mm w: 41.00 mm C: 23.00 mm Honda 5 HP (M-X series later version) Honda 5 HP (Earlier version) Honda 5 HP BF50 (F) Honda 5 HP BF5A (H-K) Honda 7.5 HP BF75 (A-B-C-D-E-F) Honda 8 HP (AH-AK) Honda 8 HP (AM-AX-B-BX) Honda 10 HP BF100 (A-B-C-D-E-F) replaces the following...