Sterndrive Engineering

Shop our Sterndrive Engineering (SEI) collection for quality aftermarket stern drive units, SEI outdrives, and drive components. SEI Marine products are a proven alternative to OEM sterndrive parts, offering reliable performance at a competitive price for MerCruiser-compatible and other popular drive configurations. Go2marine carries SEI sterndrive products for a wide range of applications. Browse our full SEI collection.

399 products

Showing 25 - 48 of 399 products

Showing 25 - 48 of 399 products
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Trim Tab Power Unit, 3-Wire 24V Motor, Reservoir & 2-Hose Pump
STERNDRIVE ENGINEERING Trim Tab Power Unit, 3-Wire 24V Motor, Reservoir & 2-Hose PumpSKU: 494221
$591.80
SE128 Lower 1.81, 2.00 & 2.20 Ratio's (Replaces Bravo Three Lowers)
STERNDRIVE ENGINEERING SE128 Lower 1.81, 2.00 & 2.20 Ratio's (Replaces Bravo Three Lowers)SKU: 576097
$2,245.00
Complete Installation Kit, SE106
STERNDRIVE ENGINEERING Complete Installation Kit, SE106SKU: 156347
$60.50
O/B Starter 75-90 HP Mercury, 12 Volt, MOT 3002N
STERNDRIVE ENGINEERING O/B Starter 75-90 HP Mercury, 12 Volt, MOT 3002NSKU: 76205
$151.80
Alpha Gen I Transom Seal Kit, SE106, 9A-108
STERNDRIVE ENGINEERING Alpha Gen I Transom Seal Kit, SE106, 9A-108SKU: 560138
$87.95
Alpha Gen II Transom Seal Kit, SE116, 9A-116
STERNDRIVE ENGINEERING Alpha Gen II Transom Seal Kit, SE116, 9A-116SKU: 558101
$87.95
Diesel Starter Motor, Yanmar/Kohler, 12 Volt, 17014/17018
STERNDRIVE ENGINEERING Diesel Starter Motor, Yanmar/Kohler, 12 Volt, 17014/17018SKU: 13452
$261.80
Alternator, Volvo 8.1L, 12 Volt, 70 Amp, Dual 2" Mount Feet, 6-Groove 67mm Serp. Pulley, Replaces Volvo # 3862613
STERNDRIVE ENGINEERING Alternator, Volvo 8.1L, 12 Volt, 70 Amp, Dual 2" Mount Feet, 6-Groove 67mm Serp. Pulley, Replaces Volvo # 3862613SKU: 12684
$437.80
Alternator Mounting Foot Conversion Kit, 1" to 2", 118-2
STERNDRIVE ENGINEERING Alternator Mounting Foot Conversion Kit, 1" to 2", 118-2SKU: 253392
$40.00
Replacement Mercruiser Counter Rotating Alpha One Sterndrive, Lower Assembly Only, SE108, All Ratios
STERNDRIVE ENGINEERING Replacement Mercruiser Counter Rotating Alpha One Sterndrive, Lower Assembly Only, SE108, All RatiosSKU: 488664
$1,292.50
Self-Contained Hydraulic Hatch Lifter, 18" Lift, 12v
STERNDRIVE ENGINEERING Self-Contained Hydraulic Hatch Lifter, 18" Lift, 12vSKU: 526690
$921.80
Power Tilt & Trim Motor, PT500NM
STERNDRIVE ENGINEERING Power Tilt & Trim Motor, PT500NMSKU: 75350
$173.80
Early Style Oil Reservoir RES500E
STERNDRIVE ENGINEERING Early Style Oil Reservoir RES500ESKU: 194907
$65.00
Power Trim Motor with Reservoir, PT116N-3
STERNDRIVE ENGINEERING Power Trim Motor with Reservoir, PT116N-3SKU: 75030
$283.80
SE128 Bravo III Replacement Outdrive, Complete, 2.00 Ratio
STERNDRIVE ENGINEERING SE128 Bravo III Replacement Outdrive, Complete, 2.00 RatioSKU: 569474
$4,504.50
Install Kit For SE121 & SE128 Drives
STERNDRIVE ENGINEERING Install Kit For SE121 & SE128 DrivesSKU: 567308
$54.99
Inboard Starter Motor, Mercruiser OMC Volvo Penta, 12 volt, 10071
STERNDRIVE ENGINEERING Inboard Starter Motor, Mercruiser OMC Volvo Penta, 12 volt, 10071SKU: 533080-Standard
From $261.80
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Inboard Starter Motor, Mercruiser OMC Yamaha Volvo, 12 volt, 10064
STERNDRIVE ENGINEERING Inboard Starter Motor, Mercruiser OMC Yamaha Volvo, 12 volt, 10064SKU: 533079-Standard
From $239.80
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Tilt / Trim Motor, Pump and Reservoir, Force Chrysler, 12v, PT116N-NP
STERNDRIVE ENGINEERING Tilt / Trim Motor, Pump and Reservoir, Force Chrysler, 12v, PT116N-NPSKU: 533077-2
$503.80
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SEI Mercruiser Alpha 1 Gen 2 Transom Assembly & Gimbal Housing, 9F-116SEI Mercruiser Alpha 1 Gen 2 Transom Assembly & Gimbal Housing, 9F-116
STERNDRIVE ENGINEERING SEI Mercruiser Alpha 1 Gen 2 Transom Assembly & Gimbal Housing, 9F-116SKU: 555275
$2,062.50
SEI, SE106, Replacement Sterndrive, Lower Assembly, Std. RotationSEI, SE106, Replacement Sterndrive, Lower Assembly, Std. Rotation
STERNDRIVE ENGINEERING SEI, SE106, Replacement Sterndrive, Lower Assembly, Std. RotationSKU: 203396
$1,072.50
Starter, V8 Chris Craft/Volvo Penta, 12v, 9-Tooth, CW Rotation
STERNDRIVE ENGINEERING Starter, V8 Chris Craft/Volvo Penta, 12v, 9-Tooth, CW RotationSKU: 402068
$261.80
O/B Starter 40-50 HP Mercury & Mariner, 12 Volt, MOT 3007N
STERNDRIVE ENGINEERING O/B Starter 40-50 HP Mercury & Mariner, 12 Volt, MOT 3007NSKU: 76224
$173.80
O/B Starter 80-115 HP OMC, 12 Volt, MOT 2011N
STERNDRIVE ENGINEERING O/B Starter 80-115 HP OMC, 12 Volt, MOT 2011NSKU: 76195
$173.80

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