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Sierra Part #18-1550
Complete 4-cylinder gear set
For Mercury Marine engine
Sierra complete 4-cylinder gear set for Mercury Marine engine. Fits 100 HP with 6 JAW reverse clutch (1988-98), 115 HP with 6 JAW reverse clutch (1989-98), and 125 HP with 6 JAW reverse clutch (1994-98) (2.07:1 ratio). Sierra Part #18-1550.
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