Sterndrive Engineering

SEI outdrives offer reliable performance and value for boaters seeking replacement sterndrives. Engineered to match OEM specifications, these units are easy to install and built for durability. Ideal for restoring propulsion systems, SEI outdrives are backed by strong warranties and support.

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Replacement for Mercruiser Gen II Sterndrive Unit, Lower Assembly only, SE116Replacement for Mercruiser Gen II Sterndrive Unit, Lower Assembly only, SE116
STERNDRIVE ENGINEERING Replacement for Mercruiser Gen II Sterndrive Unit, Lower Assembly only, SE116
From $1,072.50
2 reviews
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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 Pump
$591.80
No reviews
Replacement For Mercruiser Gen II Sterndrive Unit, Upper Assembly only, SE116Replacement For Mercruiser Gen II Sterndrive Unit, Upper Assembly only, SE116
STERNDRIVE ENGINEERING Replacement For Mercruiser Gen II Sterndrive Unit, Upper Assembly only, SE116
$962.50
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Outboard Tilt/Trim Unit, Mercury/Mariner 3-Ram, 3-Wire,1985-Present
STERNDRIVE ENGINEERING Outboard Tilt/Trim Unit, Mercury/Mariner 3-Ram, 3-Wire,1985-Present
$988.90
No reviews
SEI Mercruiser Bravo Transom Assembly & Gimbal Housing, 9F-121SEI Mercruiser Bravo Transom Assembly & Gimbal Housing, 9F-121
STERNDRIVE ENGINEERING SEI Mercruiser Bravo Transom Assembly & Gimbal Housing, 9F-121
$2,172.50
No reviews
SEI, SE106, Replacement Sterndrive, Lower Assembly, Std. RotationSEI, SE106, Replacement Sterndrive, Lower Assembly, Std. Rotation
STERNDRIVE ENGINEERING SEI, SE106, Replacement Sterndrive, Lower Assembly, Std. Rotation
$1,072.50
1 review
Tilt / Trim / Starter Solenoid, OMC & Others, 12 Volt, SW94
STERNDRIVE ENGINEERING Tilt / Trim / Starter Solenoid, OMC & Others, 12 Volt, SW94
$26.40
No reviews
Diesel Starter Motor, Yanmar, 11-Tooth, CW Rotation, 12 Volt, 17002 (17016)
STERNDRIVE ENGINEERING Diesel Starter Motor, Yanmar, 11-Tooth, CW Rotation, 12 Volt, 17002 (17016)
$173.80
No reviews
Diesel Starter Motor, Mercruiser 1.7 Engine, Replaces 882481, 17030
STERNDRIVE ENGINEERING Diesel Starter Motor, Mercruiser 1.7 Engine, Replaces 882481, 17030
$437.80
No reviews
Inboard Starter Motor, Starter Motor, 6 Liter GM Engines, Crusader, Indmar & Pleasurecraft, 10103
STERNDRIVE ENGINEERING Inboard Starter Motor, Starter Motor, 6 Liter GM Engines, Crusader, Indmar & Pleasurecraft, 10103
$239.80
No reviews
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 # 3862613
$437.80
No reviews
Alternator, Mercury, 50 Amp, 12 Volt, 20300
STERNDRIVE ENGINEERING Alternator, Mercury, 50 Amp, 12 Volt, 20300
$283.80
No reviews
Diesel Alternator, Hitachi-Style for Yanmar, 12 Volt, 80 Amp, 20107-HO
STERNDRIVE ENGINEERING Diesel Alternator, Hitachi-Style for Yanmar, 12 Volt, 80 Amp, 20107-HO
$217.80
No reviews
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 Ratios
$1,292.50
No reviews
Oildyne/Parker, Late Style Oil Reservoir, RES 500L
STERNDRIVE ENGINEERING Oildyne/Parker, Late Style Oil Reservoir, RES 500L
$44.00
No reviews
Trim Motor Relay Kit, WH-476
STERNDRIVE ENGINEERING Trim Motor Relay Kit, WH-476
$48.40
No reviews
PTT system Compatible with Johnson Evinrude Trim/Tilt system 88-225 HP 1988-1998
STERNDRIVE ENGINEERING PTT system Compatible with Johnson Evinrude Trim/Tilt system 88-225 HP 1988-1998
$1,099.00
No reviews
Hose Kit for Internal Line Cylinders Pre-Alpha (1970-1982)
STERNDRIVE ENGINEERING Hose Kit for Internal Line Cylinders Pre-Alpha (1970-1982)
$115.50
No reviews
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)
$2,245.00
No reviews
Mercruiser R/MR/Alpha 1 Sterndrive, Complete Upper & Reverse Rotation Lower Assembly, SE106Mercruiser R/MR/Alpha 1 Sterndrive, Complete Upper & Reverse Rotation Lower Assembly, SE106
STERNDRIVE ENGINEERING Mercruiser R/MR/Alpha 1 Sterndrive, Complete Upper & Reverse Rotation Lower Assembly, SE106
$2,150.50
No reviews
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Trim Cylinders, SE121 for Bravo I, Bravo II and Bravo III Sterndrives
STERNDRIVE ENGINEERING Trim Cylinders, SE121 for Bravo I, Bravo II and Bravo III Sterndrives
$176.00
No reviews
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Delco Style Alternator, Diesel Only, 12v & 24v
STERNDRIVE ENGINEERING Delco Style Alternator, Diesel Only, 12v & 24v
From $261.80
No reviews
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Alternator, Diesel only, 12-32 volt, 70-160 amp
STERNDRIVE ENGINEERING Alternator, Diesel only, 12-32 volt, 70-160 amp
From $481.42
No reviews
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Diesel Starter, Yanmar, (Left-handed Rotation), 12 or 24 volt, 17001
STERNDRIVE ENGINEERING Diesel Starter, Yanmar, (Left-handed Rotation), 12 or 24 volt, 17001
From $217.80
No reviews
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