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Mercury Outboard Gear Sets

      • Sierra 18-1564 Gear Set--Forward
        List Price: $418.10
        Starting At: $292.67

        Sierra 18-1564 Gear Set-Forward Sierra replacement gear set for Mercury Marine engines. Ratio: 1.87:1 Interchangeable with: Mallory 9-73451 Mercury Marine 43-803615T2 43-803615T1

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      • Sierra 18-1566 Reverse Gear
        List Price: $275.59
        Starting At: $192.91

        Sierra 18-1566 Reverse Gear Sierra replacement reverse gear for Mercury Marine engines. Ratio: 1.87:1 Interchangeable with: Mallory 9-73452 Mercury Marine 43-828175A1

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