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Mercruiser Alpha One Gen I/II Sterndrives & Bravo Replacement Drives

Aftermarket replacement drives for Mercruiser Alpha One Gen I Sterndrives, Mercruiser Alpha One Gen II Sterndrives & Mercruiser Bravo. Lower Units, Upper Units, Complete Drives and Counter Rotation.

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  • SE121 Upper 29/27 Tooth Count (Replaces Bravo Upper) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE121 Upper 29/27 Tooth Count (Replaces Bravo Upper)

    SEI Marine
    €2.425,00 - €2.425,00
    €2.425,00
    €2.425,00 - €2.425,00
    €2.425,00
    Low stock

    SE121 Upper 29/27 Tooth CountFits Bravo 1 1.36 RatioFits Bravo 2 1.5 and 1.81 Ratio'sFits Bravo 3 1.36 and 1.81 Ratio's OE #1589-8868H87 Not a re...

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  • SE121 Upper 32/27 Tooth Count(Replaces Bravo Upper) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE121 Upper 32/27 Tooth Count(Replaces Bravo Upper)

    SEI Marine
    €2.425,00 - €2.425,00
    €2.425,00
    €2.425,00 - €2.425,00
    €2.425,00
    Low stock

    SE121 Upper 32/27 Tooth CountFits Bravo 1 1.5 RatioFits Bravo 2 1.65 and 2.00 Ratio'sFits Bravo 3 1.5, 1.65 and 2.00 Ratio'sNot a replacement for B...

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  • SE122 DUAL WATER PICKUP (Replaces Bravo One Lower) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE122 DUAL WATER PICKUP (Replaces Bravo One Lower)

    SEI Marine
    €1.328,00 - €1.328,00
    €1.328,00
    €1.328,00 - €1.328,00
    €1.328,00
    In stock

    This item is to replace 1992 and up Bravo One's with the oil passage. It can be modified to backfit 1988-1991. This unit has side and low water int...

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  • SE116 1.47 Complete - C.R. (Replaces Mercruiser Gen II) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE116 1.47 Complete - C.R. (Replaces Mercruiser Gen II)

    SEI Marine
    €2.473,00 - €2.473,00
    €2.473,00
    €2.473,00 - €2.473,00
    €2.473,00
    In stock

    OE# 5111200LP Ships in two boxes. Counter rotation unit, do not use for standard rotation. Ships in two boxes. Comes with a 9-9/16 new style inpu...

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  • SE116 1.94 Complete (Replaces Mercruiser Gen II) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE116 1.94 Complete (Replaces Mercruiser Gen II)

    SEI Marine
    €2.289,00 - €2.289,00
    €2.289,00
    €2.289,00 - €2.289,00
    €2.289,00
    In stock

    Ships in two boxes. Does not Include Complete Install Kit or Anode Kit. Please see related items below. We are generally able to ship the following...

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  • SE116, UPPER 1.94 / 2.40 (Replaces Mercruiser Gen II) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE116, UPPER 1.94 / 2.40 (Replaces Mercruiser Gen II)

    SEI Marine
    €1.145,00 - €1.145,00
    €1.145,00
    €1.145,00 - €1.145,00
    €1.145,00
    In stock

    The 1.94 ratio replaces the 1.98 and the 2.4 ratios We are generally able to ship the following business day however, during the summer there may ...

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  • Gen I 1.81 Complete - C. R. (Replaces Mercruiser Alpha One&reg - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    Gen I 1.81 Complete - C. R. (Replaces Mercruiser Alpha One)

    SEI Marine
    €2.289,00 - €2.289,00
    €2.289,00
    €2.289,00 - €2.289,00
    €2.289,00
    In stock

    Please click here for application assistance. Ships in two boxes. Comes with a 9-9/16 new style input yoke. Does not include Complete Install Kit...

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  • Gen I 1.47 Complete - C. R. (Replaces Mercruiser's Alpha One) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    Gen I 1.47 Complete - C. R. (Replaces Mercruiser's Alpha One)

    SEI Marine
    €2.289,00 - €2.289,00
    €2.289,00
    €2.289,00 - €2.289,00
    €2.289,00
    In stock

    Please click here for application assistance.Ships in two boxes. Comes with a 9-9/16 new style input yoke. Ships in two boxes. Comes with a 9-9/16 ...

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  • SE106 1.62 Complete (Replaces Mercruiser's Alpha One) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE106 1.62 Complete (Replaces Mercruiser's Alpha One)

    SEI Marine
    €2.106,00 - €2.106,00
    €2.106,00
    €2.106,00 - €2.106,00
    €2.106,00
    In stock

    Please click here for application assistance. Replaces most Mercruiser Sterndrives 205 HP from 1983-1990. Ships in two boxes. Comes with a 9-9/1...

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  • SE106, UPPER 1.47 (Replaces Mercruiser Alpha One) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE106, UPPER 1.47 (Replaces Mercruiser Alpha One)

    SEI Marine
    €1.053,00 - €1.053,00
    €1.053,00
    €1.053,00 - €1.053,00
    €1.053,00
    In stock

    Please click here for application assistance. The 1.47 ratio also replaces the 1.5 ratio Comes with a 9-9/16 new style input yoke. We are general...

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  • SE128 Complete 1.5 Ratio (Replaces Bravo Three®) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE128 Complete 1.5 Ratio (Replaces Bravo Three®)

    SEI Marine
    €4.270,00 - €4.270,00
    €4.270,00
    €4.270,00 - €4.270,00
    €4.270,00
    In stock

    SE128 1.5 Ratio Complete Replaces Mercruiser Bravo Three® 1.5 Ratio Dual Water Intakes. OE# 5441200TP Not a replacement for Bravo X,XR or XZ drive...

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  • SE128 Complete 1.36 Ratio (Replaces Bravo Three®) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement
    SE128 Complete 1.36 Ratio (Replaces Bravo Three®) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE128 Complete 1.36 Ratio (Replaces Bravo Three®)

    SEI Marine
    €4.066,40 - €4.066,40
    €4.066,40
    €4.066,40 - €4.066,40
    €4.066,40
    In stock

    SE128 Complete 1.36 Ratio Replaces Mercruiser Bravo Three® 1.36 Ratio Dual Water Intakes. OE# 5441100TP Not a replacement for Bravo X,XR or XZ dri...

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  • SE121 Complete 1.36 Ratio Dual Water Inlet (Replaces Bravo One®) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE121 Complete 1.36 Ratio Dual Water Inlet (Replaces Bravo One®)

    SEI Marine
    €3.463,00 - €3.463,00
    €3.463,00
    €3.463,00 - €3.463,00
    €3.463,00
    In stock

    SE121 Complete 1.36 Ratio Replaces Mercruiser Bravo One® 1.36 Ratio with Dual Water Inlets. OE# 5231100TP Not a replacement for Bravo X,XR or XZ dr...

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  • SE121 Complete 1.65 Ratio Side Water Inlet (Replaces Bravo One®) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE121 Complete 1.65 Ratio Side Water Inlet (Replaces Bravo One®)

    SEI Marine
    €3.463,00 - €3.463,00
    €3.463,00
    €3.463,00 - €3.463,00
    €3.463,00
    In stock

    Replaces Mercruiser Bravo One® 1.36 Ratio with Side Water Inlets. OE# 5120165KZ Not a replacement for Bravo X,XR or XZ drives. Rated for up to 425H...

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  • SE121 Complete 1.5 Ratio Side Water Inlet (Replaces Bravo One® - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE121 Complete 1.5 Ratio Side Water Inlet (Replaces Bravo One®

    SEI Marine
    €3.463,00 - €3.463,00
    €3.463,00
    €3.463,00 - €3.463,00
    €3.463,00
    In stock

    SE121 Complete 1.5 Ratio Replaces Mercruiser Bravo One 1.5 Ratio with Side Water Inlets. OE# 5120150KZ Not a replacement for Bravo X,XR or XZ drive...

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  • SE121 Complete 1.36 Ratio Side Water Inlet (Replaces Bravo One®) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE121 Complete 1.36 Ratio Side Water Inlet (Replaces Bravo One®)

    SEI Marine
    €3.463,00 - €3.463,00
    €3.463,00
    €3.463,00 - €3.463,00
    €3.463,00
    In stock

    SE121 Complete 1.36 Ratio. Replaces Mercruiser Bravo One® 1.36 Ratio with Side Water Inlets. OE# 5120136KZ Not a replacement for Bravo X,XR or XZ d...

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  • SE128 1.36 & 1.5 Ratio's (Replaces Bravo Three® Lowers) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE128 1.36 & 1.5 Ratio's (Replaces Bravo Three® Lowers)

    SEI Marine
    €1.975,00 - €1.975,00
    €1.975,00
    €1.975,00 - €1.975,00
    €1.975,00
    Low stock

    SE128 Lower 1.36 and 1.5 Ratio'sFits Bravo Three® 1.36 and 1.5 Ratio's Not a replacement for Bravo X,XR or XZ drives. Has newer style case with the...

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  • SE116 1.94 Complete - C.R. (Replaces Mercruiser Gen II) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE116 1.94 Complete - C.R. (Replaces Mercruiser Gen II)

    SEI Marine
    €2.473,00 - €2.473,00
    €2.473,00
    €2.473,00 - €2.473,00
    €2.473,00
    In stock

    Ships in two boxes. Counter rotation unit, do not use for standard rotation. Ships in two boxes. Comes with a 9-9/16 new style input yoke. Does not...

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  • SE116 1.81 Complete - C.R. (Replaces Mercruiser Gen II) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE116 1.81 Complete - C.R. (Replaces Mercruiser Gen II)

    SEI Marine
    €2.473,00 - €2.473,00
    €2.473,00
    €2.473,00 - €2.473,00
    €2.473,00
    In stock

    Ships in two boxes. Counter rotation unit, do not use for standard rotation. Ships in two boxes. Comes with a 9-9/16 new style input yoke. Does not...

    View full details
  • SE116 1.62 Complete - C.R. (Replaces Mercruiser Gen II) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE116 1.62 Complete - C.R. (Replaces Mercruiser Gen II)

    SEI Marine
    €2.473,00 - €2.473,00
    €2.473,00
    €2.473,00 - €2.473,00
    €2.473,00
    In stock

    Ships in two boxes. Counter rotation unit, do not use for standard rotation. Ships in two boxes. Comes with a 9-9/16 new style input yoke. Does not...

    View full details
  • Gen I 1.94 Complete - C. R. (Replaces Mercruiser Alpha One) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    Gen I 1.94 Complete - C. R. (Replaces Mercruiser Alpha One)

    SEI Marine
    €2.289,00 - €2.289,00
    €2.289,00
    €2.289,00 - €2.289,00
    €2.289,00
    Low stock

    Please click here for application assistance. Ships in two boxes. Comes with a 9-9/16 new style input yoke. Ships in two boxes. Comes with a 9-9/...

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  • Gen I 1.62 Complete - C. R. (Replaces Mercruiser Alpha One&reg - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    Gen I 1.62 Complete - C. R. (Replaces Mercruiser Alpha One)

    SEI Marine
    €2.289,00 - €2.289,00
    €2.289,00
    €2.289,00 - €2.289,00
    €2.289,00
    In stock

    Please click here for application assistance. Ships in two boxes. Comes with a 9-9/16 new style input yoke. Ships in two boxes. Comes with a 9-9/...

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  • SE106, UPPER 1.62 (Replaces Mercruiser Alpha One) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE106, UPPER 1.62 (Replaces Mercruiser Alpha One)

    SEI Marine
    €1.053,00 - €1.053,00
    €1.053,00
    €1.053,00 - €1.053,00
    €1.053,00
    In stock

    Please click here for application assistance. The 1.62 ratio also replaces the 1.65 ratio Comes with a 9-9/16 new style input yoke. We are gene...

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