Sterndrive Engineering

      • Mercruiser Alpha One Replacement Upper Unit 1.47
        List Price: $864.00
        Starting At: $720.00

        Sterndrive Replacement Upper Unit for Mercruiser R, MR, Alpha One 1.47 Ratio 1.47 Ratio also replaces 1.5 ratio Comes with a 9-9/16" [new style] input yoke. For alpha One Gen I Sterndrives...

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      • Mercruiser Alpha One Replacement Upper Unit 1.62
        List Price: $864.00
        Starting At: $720.00

        Sterndrive Replacement Upper Unit for Mercruiser R, MR, Alpha One 1.62 Ratio 1.62 Ratio also replaces 1.65 ratio Comes with a 9-9/16" [new style] input yoke. For Alpha One Gen I Sterndrives...

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      • Mercruiser Alpha One Replacement Upper Unit 1.62 w/ Short Yoke
        List Price: $864.00
        Starting At: $720.00

        Sterndrive Engineering Mercruiser Alpha One Replacement Upper Unit 1.62 Ratio w/ Short Yoke 1.62 ratio also replaces the 1.65 ratio Comes with a [short] 8-1/8" input yoke. This drive is...

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      • SEI Mercruiser Alpha One Replacement Upper Unit 1.81
        List Price: $864.00
        Starting At: $720.00

        SternDrive Replacement Upper Unit for Mercruiser R, MR, Alpha One. 1.81 Ratio 1.81 Ratio also replaces 1.84 ratio For Alpha One Gen I Sterndrives (1972-1990) Comes with a 9-9/16" [new style]...

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      • Mercruiser Alpha One Replacement Upper Unit 1.81 w/ Short Yoke
        List Price: $864.00
        Starting At: $720.00

        Sterndrive Engineering Mercruiser Alpha One Replacement Upper Unit 1.81 Ratio w/ Short Yoke 1.81 ratio also replaces the 1.84 ratio Comes with an [old style] 8-1/8" input yoke. This drive is...

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      • Mercruiser Alpha One Replacement Upper Unit 1.94
        List Price: $864.00
        Starting At: $720.00

        Replacement Upper Unit for Mercruiser R, MR, Alpha One. 1.94 Ratio 1.94 ratio also replaces 1.98 ratio Comes with a 9-9/16" [new style] input yoke. 3 Year Manufacturer's...

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      • Mercruiser Alpha One Replacement Upper Unit 1.94 w/ Short Yoke
        List Price: $864.00
        Starting At: $720.00

        Sterndrive Mercruiser Alpha One Replacement Upper Unit 1.94 Ratio with Short Yoke Replaces Mercruiser 1972-1982 2.5 and 3.0 Liter inline 4 Upper unit 1.94 ratio also replaces the 1.98...

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      • Mercruiser Gen II Replacement Upper Unit 1.47
        List Price: $984.00
        Starting At: $820.00

        Sterndrive Engineering Mercruiser Alpha One Gen II Replacement Upper Unit 1.47 Ratio For Mercruiser Alpha One Gen II Sterndrives 1991 - Present. SE116 1.47 Ratio also replaces the 1.5...

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      • Mercruiser Gen II Replacement Upper Unit 1.62 / 2.0
        List Price: $984.00
        Starting At: $820.00

        Sterndrive Engineering Mercruiser Alpha One Gen II Replacement Upper Unit 1.62 / 2.0 Ratio Replacement Upper Unit for Mercruiser Alpha One Gen II Sterndrives 1991- Current. SE116 1.62 Ratio...

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      • Mercruiser Gen II Replacement Upper Unit 1.81
        List Price: $984.00
        Starting At: $820.00

        Sterndrive Engineering Mercruiser Gen II Replacement Upper Unit 1.81 Ratio Replacement Upper Unit for Mercruiser Alpha One Gen II Sterndrives 1991- Current. SE116 1.81 Ratio replaces the 1...

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      • Mercruiser Gen II Replacement Upper Unit 1.94 / 2.40
        List Price: $984.00
        Starting At: $820.00

        Sterndrive Engineering Mercruiser Alpha One Gen II Replacement Upper Unit 1.94 / 2.40 Ratios For Mercruiser Alpha One Gen II Sterndrives 1991 - Present. SE116 1.94 ratio also replaces the 1...

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      • SEI Mercruiser Alpha One Trim Pump Assembly
        List Price: $390.00
        Starting At: $325.00

        Sterndrive Engineering Mercruiser Alpha One Trim Pump Assembly Complete Trim Pump Assembly used on Mercruiser Stern drives. (1986 - Present) Use fittings from old pump for quick...

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      • SEI Mercury Outboard 3.0L Replacement Lower Unit 1.75, 20"
        List Price: $1,104.00
        Starting At: $920.00

        Sterndrive Engineering Mercury Outboard 3.0L Replacement Lower Unit 1.75:1, 20" Driveshaft Note for purchasing: You must verify your Gear Ratio. Call for application assistance if needed,...

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      • SEI Mercury Outboard 3.0L Replacement Lower Unit 1.75, 25"
        List Price: $1,104.00
        Starting At: $920.00

        Sterndrive Engineering Mercury Outboard 3.0L Replacement Lower Unit 1.75:1, 25" Driveshaft Note for purchasing: You must verify your Gear Ratio. Call for application assistance if needed,...

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      • SEI Mercury Outboard 3.0L Replacement Lower Unit 1.75, 30"
        List Price: $1,104.00
        Starting At: $920.00

        Sterndrive Engineering Mercury Outboard 3.0L Replacement Lower Unit 1.75:1, 30" Driveshaft Note for purchasing: You must verify your Gear Ratio. Call for application assistance if needed,...

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      • SEI Mercury V6 Outboard Replacement Lower Unit 1.87, 20"
        List Price: $1,104.00
        Starting At: $920.00

        Sterndrive Engineering Mercury V6 Outboard Replacement Lower Unit 1.87:1, 20" Driveshaft Note for purchasing: You must verify your Gear Ratio. Call for application assistance if needed,...

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      • SEI Mercury V6 Outboard Replacement Lower Unit 1.87, 25"
        List Price: $1,103.99
        Starting At: $919.99

        Sterndrive Engineering Mercury V6 Outboard Replacement Lower Unit 1.87:1, 25" Driveshaft Note for purchasing: You must verify your Gear Ratio. Call for application assistance if needed,...

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      • SEI Mercury V6 Outboard Replacement Lower Unit 2:1, 20"
        List Price: $1,104.00
        Starting At: $920.00

        Sterndrive Engineering Mercury V6 Outboard Replacement Lower Unit 2:1, 20" Driveshaft Note for purchasing: You must verify your Gear Ratio. Call for application assistance if needed, and...

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      • SEI Mercury V6 Outboard Replacement Lower Unit 2:1, 25"
        List Price: $1,104.00
        Starting At: $920.00

        Sterndrive Engineering Mercury V6 Outboard Replacement Lower Unit 2:1, 25" Driveshaft Note for purchasing: You must verify your Gear Ratio. Call for application assistance if needed, and...

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      • SEI Yamaha V6 4-Stroke Replacement Lower Unit 2:1, 20"
        List Price: $1,104.00
        Starting At: $920.00

        Sterndrive Engineering Yamaha V6 4-Stroke Outboard Replacement Lower Unit 2:1, 20" Replacement lower unit for most Yamaha 4-Stroke 150 HP engines with a 20" drive shaft. SE416 2:1 Gear...

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