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Sierra Part #18-2204
For Mercury Marine engine
Sierra gear set for Mercury Marine engine. 1.84:1 Ratio Drive Gear = 17 Teeth, Driven Gear = 19 Teeth. For V6 and 470/485 (4-cylinder) and Gen II (S/N K999999 and below) applications. Sierra Part #18-2204.
OEM Part Number:
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