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SEI Marine will be closed December 23rd – January 7th for holidays
SEI Marine will be closed December 23rd – January 7th for holidays

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  • Hose & Hardware Kit (For Alpha I 15-9/16" Cylinder)

    SEI Marine
    €156,40 - €156,40
    €156,40
    €156,40 - €156,40
    €156,40

    Includes Trim hoses and all hardware to install the 9B-104 Trim Cylinders

  • Hose & Hardware Kit (For Gen II) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement
    Sold out

    Hose & Hardware Kit (For Gen II)

    SEI Marine
    €156,40 - €156,40
    €156,40
    €156,40 - €156,40
    €156,40
    Out of stock

    Hoses and Hardware to install 9B-116 Trim Cylinders

  • Hose Kit (For Alpha I 15-9/16 & Bravo) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement
    Hose Kit (For Alpha I 15-9/16 & Bravo) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    Hose Kit (For Alpha I 15-9/16 & Bravo)

    SEI Marine
    €96,60 - €96,60
    €96,60
    €96,60 - €96,60
    €96,60
    Low stock

    Replacement Hoses for 9B-104 and 9B-121 Trim Cylinders

  • Hose Kit For Alpha One (16-3/16" & Gen II) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement
    Hose Kit For Alpha One (16-3/16" & Gen II) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    Hose Kit For Alpha One (16-3/16" & Gen II)

    SEI Marine
    €96,60 - €96,60
    €96,60
    €96,60 - €96,60
    €96,60
    Low stock

    Replacement Hoses for 9B-106 and 9B-116 Trim Cylinders

  • Install Kit for SE121 & SE128 Drives - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    Install Kit for SE121 & SE128 Drives

    SEI Marine
    €45,99 - €45,99
    €45,99
    €45,99 - €45,99
    €45,99
    In stock

    Complete install kit for SE121 & SE128 Bravo® drives.

  • Johnson/Evinrude Driveshaft Removal Tool - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    Johnson/Evinrude Driveshaft Removal Tool

    SEI Marine EU
    €28,97 - €28,97
    €28,97
    €28,97 - €28,97
    €28,97
    Low stock

    This tool removes the Driveshaft on Johnson/Evinrude V4 and V6 engines that use a two piece drive shaft.

  • Mid Section Shift Shaft Kit

    Mid Section Shift Shaft Kit

    SEI Marine
    €138,00 - €138,00
    €138,00
    €138,00 - €138,00
    €138,00
    Low stock

    Shift shaft kit to convert 70-125 HP motors from a 3 jaw lower unit to a 6 jaw lower unit.

  • Oil Seal

    Oil Seal

    SEI Marine
    €14,26 - €14,26
    €14,26
    €14,26 - €14,26
    €14,26
    In stock

    Replaces OE# 26-88416

  • Replaces Mercruiser Transom Assy. Bravo - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement
    Replaces Mercruiser Transom Assy. Bravo - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement
    Sold out

    Replaces Mercruiser Transom Assy. Bravo

    SEI Marine
    €1.908,08 - €1.908,08
    €1.908,08
    €1.908,08 - €1.908,08
    €1.908,08
    Out of stock

    Complete Transom assembly to Replace Mercruiser's Bravo I, II and III Transoms. OE#'s 6311002NZ & 6211002nz Does not replace Mercruiser's Bravo...

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  • Replaces Mercruiser Transom Assy. Gen II - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement
    Replaces Mercruiser Transom Assy. Gen II - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    Replaces Mercruiser Transom Assy. Gen II

    SEI Marine
    €1.816,08 - €1.816,08
    €1.816,08
    €1.816,08 - €1.816,08
    €1.816,08
    Low stock

    Complete brand new transom plate assembly with trim cylinders.  Fits: 1991 to current Alpha 1 Gen 2. Replaces Original Equipment made by Mercruiser...

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  • SE 304 Replaces Johnson / Evinrude Early Model V4 with 2.0:1 - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE 304 Replaces Johnson / Evinrude Early Model V4 with 2.0:1

    SEI Marine
    €1.195,08 - €1.195,08
    €1.195,08
    €1.195,08 - €1.195,08
    €1.195,08
    In stock

    This SE304 Gear Case replaces most early style Johnson/Evinrude V-4 Lower Units from 1978-1998 with a 4-1/8 bullet diameter. The case has internal...

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  • SE 305 Johnson Evinrude Replacement GearCase 2.0:1 Gear Ratio - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE 305 Johnson Evinrude Replacement GearCase 2.0:1 Gear Ratio

    SEI Marine
    €1.195,08 - €1.195,08
    €1.195,08
    €1.195,08 - €1.195,08
    €1.195,08
    In stock

    These units come in Black as pictured. You may paint them to match your motor. Replaces most later model Johnson V-4 Lower Units from 1995-2006 wit...

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  • SE 306 Replaces Johnson / Evinrude V6 w/1.83:1 Ratio - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE 306 Replaces Johnson / Evinrude V6 w/1.83:1 Ratio

    SEI Marine
    €1.195,08 - €1.195,08
    €1.195,08
    €1.195,08 - €1.195,08
    €1.195,08
    In stock

    SE306 Uses the Ocean Pro style water intakes.Does not fit units older than 1978. The Bullet diameter is 4-3/4 inches. Will not replace Magnum or Li...

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  • SE 316 1.85 (Replaces Johnson/Evinrude Magnum Units) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE 316 1.85 (Replaces Johnson/Evinrude Magnum Units)

    SEI Marine
    €1.369,88 - €1.369,88
    €1.369,88
    €1.369,88 - €1.369,88
    €1.369,88
    In stock

    Replacement unit for Johnson Evinrude Magnum and Magnum 2 lower units.It is a direct replacement for the Mag IIIf you are replacing a Mag (the orig...

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  • SE 318 1.85 Counter Rotation (Replaces Johnson/Evinrude Magnum Units) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE 318 1.85 Counter Rotation (Replaces Johnson/Evinrude Magnum Units)

    SEI Marine
    €1.544,68 - €1.544,68
    €1.544,68
    €1.544,68 - €1.544,68
    €1.544,68
    In stock

    Replacement unit for Johnson Evinrude Magnum and Magnum 2 lower units.It is a direct replacement for the Mag IIIf you are replacing a Mag (the orig...

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  • SE 422 (Replaces some F250) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE 422 (Replaces some F250)

    SEI Marine
    €1.369,88 - €1.369,88
    €1.369,88
    €1.369,88 - €1.369,88
    €1.369,88
    In stock

    Replaces F250 lower units with dual water intakes. Also replaces early F250 lower units with side water intakes.  This unit has the watercooled bea...

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  • SE 428 C.R. (Replaces some Yamaha V6 2 & 4 Stroke) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE 428 C.R. (Replaces some Yamaha V6 2 & 4 Stroke)

    SEI Marine
    €1.369,88 - €1.369,88
    €1.369,88
    €1.369,88 - €1.369,88
    €1.369,88
    In stock

    Replaces most 200HP/225HP and some 250HP Yamaha 76 Degree V6 Counter Rotation Motors with a 1.81 Ratio Replaces most 200HP/225HP Yamaha V6 4-Stroke...

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  • SE 429 (Replaces some LF250 C.R.) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE 429 (Replaces some LF250 C.R.)

    SEI Marine
    €1.544,68 - €1.544,68
    €1.544,68
    €1.544,68 - €1.544,68
    €1.544,68
    In stock

    Counter Rotation only Replaces LF250 lower units with dual water intakes. Also replaces early LF250 lower units with side water intakes.  This uni...

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

    SE106 1.47 Complete (Replaces Mercruiser's Alpha One)

    SEI Marine
    €2.005,60 - €2.005,60
    €2.005,60
    €2.005,60 - €2.005,60
    €2.005,60
    In stock

    Please click here for application assistance. Replaces most Mercruiser Sterndrives 228 HP and up from 1974-1990. Ships in two boxes. Comes with ...

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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
    €2.005,60 - €2.005,60
    €2.005,60
    €2.005,60 - €2.005,60
    €2.005,60
    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 1.81 Complete (Replaces Mercruiser's Alpha One) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE106 1.81 Complete (Replaces Mercruiser's Alpha One)

    SEI Marine
    €2.005,60 - €2.005,60
    €2.005,60
    €2.005,60 - €2.005,60
    €2.005,60
    In stock

    Please click here for application assistance. Replaces most Mercruiser Sterndrives 165-205 HP and up from 1976-1990. Typically used on V6 engine...

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  • SE106 1.94 Complete (Replaces Mercruiser's Alpha One) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE106 1.94 Complete (Replaces Mercruiser's Alpha One)

    SEI Marine
    €2.005,60 - €2.005,60
    €2.005,60
    €2.005,60 - €2.005,60
    €2.005,60
    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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  • SE106, LOWER (Replaces Mercruiser Alpha One) - SEI Marine - Mercruiser, OMC Cobra, Mercury, Yamaha, Johnson/Evinrude Replacement

    SE106, LOWER (Replaces Mercruiser Alpha One)

    SEI Marine
    €1.090,20 - €1.090,20
    €1.090,20
    €1.090,20 - €1.090,20
    €1.090,20
    In stock

    Please click here for application assistance. We are generally able to ship the following business day.We will notify you by email of the current...

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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
    €1.002,80 - €1.002,80
    €1.002,80
    €1.002,80 - €1.002,80
    €1.002,80
    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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