Bushing Shift Shaft for Mercruiser Alpha One Gen. II 23-815921A21 [SIE18-2353] - $26.95 : ebasicpower.com, Marine Engine Parts | Fishing Tackle | Basic Power Industries
MerCruiser Fitting speedometer
Genuine MerCruiser Speedometer Connector, Alpha I GEN II - 22-860382 | eBay