The British Seagull® Propeller Shaft Rubber Oil Seal Washer is a dust seal to prevent dirt entering the gearbox.
This seal is not designed as a positive seal to prevent water ingress or oil leaking, and, an emulsified mixture is the sign of a healthy, unsealed, gearbox.
This British Seagull spare part is suitable for SJM, F, GF, EF, SEF, AF, SJP, FS, GFS, EFS, TSEF, EGF, FP, GFP, EFPW, LS, AFPW, LLS, W, S, WS, CP, WP & SP British Seagull Outboard Engines only.