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
Replacement for Mercruiser Gen II Sterndrive Unit, Lower Assembly only, SE116
From $1,072.50
3 reviews
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SEI Mercruiser Bravo Transom Assembly & Gimbal Housing, 9F-121SEI Mercruiser Bravo Transom Assembly & Gimbal Housing, 9F-121
SEI Mercruiser Bravo Transom Assembly & Gimbal Housing, 9F-121
$2,172.50
No reviews
Trim Tab Power Unit, 3-Wire 24V Motor, Reservoir & 2-Hose Pump
Trim Tab Power Unit, 3-Wire 24V Motor, Reservoir & 2-Hose Pump
$591.80
No reviews
SE128 Lower 1.81, 2.00 & 2.20 Ratio's (Replaces Bravo Three Lowers)
SE128 Lower 1.81, 2.00 & 2.20 Ratio's (Replaces Bravo Three Lowers)
$2,245.00
No reviews
Replacement For Mercruiser Gen II Sterndrive Unit, Upper Assembly only, SE116Replacement For Mercruiser Gen II Sterndrive Unit, Upper Assembly only, SE116
Replacement For Mercruiser Gen II Sterndrive Unit, Upper Assembly only, SE116
$962.50
No reviews
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Trim Pump Alpha One, 1986-Present, Replaces OE 865380A25
Trim Pump Alpha One, 1986-Present, Replaces OE 865380A25
$330.00
No reviews
Outboard Tilt/Trim Unit, Mercury/Mariner 3-Ram, 3-Wire,1985-Present
Outboard Tilt/Trim Unit, Mercury/Mariner 3-Ram, 3-Wire,1985-Present
$988.90
No reviews
SEI, SE106, Replacement Sterndrive, Lower Assembly, Std. RotationSEI, SE106, Replacement Sterndrive, Lower Assembly, Std. Rotation
SEI, SE106, Replacement Sterndrive, Lower Assembly, Std. Rotation
$1,072.50
1 review
Trim Hose Kit 9B-102A, Alpha I Gen I Sterndrives, 1972-1990
Trim Hose Kit 9B-102A, Alpha I Gen I Sterndrives, 1972-1990
$115.50
No reviews
Tilt / Trim / Starter Solenoid, OMC & Others, 12 Volt, SW94
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)
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
Diesel Starter Motor, Mercruiser 1.7 Engine, Replaces 882481, 17030
$437.80
No reviews
Starter Motor, High Torque Gear Reduction, Mercruiser, Volvo Penta, Marine Power, 12 Volt, 10099HD
Starter Motor, High Torque Gear Reduction, Mercruiser, Volvo Penta, Marine Power, 12 Volt, 10099HD
$217.80
No reviews
Inboard Starter Motor, Starter Motor, 6 Liter GM Engines, Crusader, Indmar & Pleasurecraft, 10103
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
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
Alternator, Mercury, 50 Amp, 12 Volt, 20300
$283.80
No reviews
Diesel Alternator, Hitachi-Style for Yanmar, 12 Volt, 80 Amp, 20107-HO
Diesel Alternator, Hitachi-Style for Yanmar, 12 Volt, 80 Amp, 20107-HO
$217.80
No reviews
Power Trim Motor for 40-50 HP Yamaha Outboards, 12v, PT611NM (PT614NM)
Power Trim Motor for 40-50 HP Yamaha Outboards, 12v, PT611NM (PT614NM)
$173.80
No reviews
Replacement Mercruiser Counter Rotating Alpha One Sterndrive, Lower Assembly Only, SE108, All Ratios
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
Oildyne/Parker, Late Style Oil Reservoir, RES 500L
$44.00
No reviews
Early Style Oil Reservoir RES500E
Early Style Oil Reservoir RES500E
$65.00
1 review
Trim Motor Relay Kit, WH-476
Trim Motor Relay Kit, WH-476
$48.40
No reviews
PTT system Compatible with Johnson Evinrude Trim/Tilt system 88-225 HP 1988-1998
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)
Hose Kit for Internal Line Cylinders Pre-Alpha (1970-1982)
$115.50
No reviews

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