Mercruiser Upper Unit Gears
Sierra 18-2204 Gear Set Replaces 43-75325A3 - MW
Mercruiser Upper Unit Gears
Sierra 18-2204 Mercruiser 1.84:1 Upper Unit Gear Set For 1.84:1 Ratio Drives. Drive Gear = 17 teeth; Driven Gear = 19 teeth. For V6 and 470/485 (4 cyl. etc.) and Gen II (S/N K999999 & Below) Interchan... More Details
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Sierra 18-2205 Gear Set Replaces 43-55778A3 - MW
Mercruiser Upper Unit Gears
Sierra 18-2205 Mercruiser 1.98:1 Upper Unit Gear Set For 1.98:1 Ratio Drives. Drive Gear = 20 teeth; Driven Gear = 24 teeth. For 120/140 (S/N 2791957 & UP) and Gen II (S/N K999999 & Below) Interchange... More Details
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This product has been discontinued by the manufacturer and has been superseded by Mercury 43-803112T-1 Sierra 18-2257 Mercruiser 1.65:1 Upper Gear Kit Sierra replacement Upper Gear Kit for Mercruiser ... More Details
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Gen II & Vazer (1.94:1 & 2.40:1 Ratios) Upper Gear Set For Alpha Gen II and Vazer 1.94:1 and 2.40:1 Ratios (20 - 24 Teeth) Used with 18-2411 Drive Shaft Housing Assembly and 18-2419 Complete Upper Gea... More Details
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