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- SEI sterndrive aftermarket replacement lower unit and upper gear case outdrives
- Parts SE106 for 1970-1990
models, and P/N SE116 for 1991 and up (Alpha One Gen 2 models)
- Compatible with 1970 - present models
- Mercruiser,
MR, Alpha One and Generation 2 models
- All sterndrive gear ratios available for all motors, 4 cylinder, V6 and V8
- No
core charge required on all outdrives
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Sterndrive Lower Units
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Price
USD
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Price
Canadian
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SEI lower unit
Marine aftermarket
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P/N SE106 Mercruiser R /MR / Alpha one complete replaced assembly lower units. For 1970 - 1990 models,
serial numbers 2791957-OD469858. 13 spline vertical driveshaft. Replaced 4 cylinder, 6 cylinder and V8 models up to 300 horsepower.
1623-8951A43
*Note - does not include trim tab anode
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$1199.89
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$1560.89 CDN
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lower unit 1623-815822A53
Sterndrive gearcase V8 V6 4 cylinder
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P/N SE116 Alpha One Generation 2 lower unit assembly. For 1991 and up models 4 cylinder, V6 and
V8 models with metal water pump impeller housing, serial numbers OD470000-Up. For up to 300 horsepower. Will not replace 2.00
or 2.40 ratio units.
*Note - does not include trim tab anode
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$1307.89
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$1699.89 CDN
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12670 anode aluminum
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$14.89 US
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$18.89 CDN
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12710 trim tab anode
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P/N 12710 Trim tab, for SE116, 1991 and up models 76214Q5
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$20.89 US
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$27.89 CDN
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1991 and up Alpha 1 Gen 2
Upper Gearcases
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Price
(USD)
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Price
(Canadian)
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P/N SE116-147 Mercruiser Generation 2 aftermarket upper unit. For 1991 - up models with 230 / 260 horsepower
V8 motors, 1.47 gear ratio with a 20-22 tooth count.
Compatible with 5.0 liter 305 and 5.7 liter 350 models serial
numbers 0D470000 and up.
*Note - does not work with the 305 V8 200 horsepower model.
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$1199.89 US
includes u-joints and output shaft
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$1560.89 CDN
includes u-joints and output shaft
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upper gearcase 3 liter
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P/N SE116-194 Alpha One Generation 2 aftermarket upper unit. For 1991 - up models with 4 cylinder motors,
1.94 gear ratio with a 20-24 tooth count.
Compatible with 3.0L and 3.0LX models serial numbers 0D470000 and up.
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$1199.89 US
includes u-joints and output shaft
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$1560.89 CDN
includes u-joints and output shaft
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V6 Chevy GM 181
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P/N SE116-181 Generation 2 assembly upper unit. For 1991 - up models with 4.3 liter V6 motors, 1.81
gear ratio with a 17-19 tooth count.
Works for Mercury engines with a 4.3L and 4.3LX engine in boat with models
serial numbers 0D470000 and up.
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$1199.89 US
includes u-joints and output shaft
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$1560.89 CDN
includes u-joints and output shaft
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Mercruiser / Alpha 1 1970-1990 Upper Gearcases
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Price
(USD)
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Price
(Canadian)
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Mercruiser upper gear case
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P/N SE106-198 Mercruiser R/MR/Gen 1 upper unit sterndrive assembly. For 1970 - 1990 models, 4 cylinder
with 1.94 / 1.98 gear ratios with a 20-24 tooth count.
Compatible with 120 to 140 horsepower models with a 2.5
or 3.0 liter motor, 1971 to 1990, serial numbers 2791957 to 6225576.
*Note - before ordering, please measure
your output shaft that goes into the engine. Outdrives with upper units come with an output shaft that measures 9-9/16 inch.
If you have a sterndrive input shaft is the 'short style' which measures 8-1/8 inches, please contact us for sterndrive availability.
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$1099.89 US
includes u-joints and output shaft
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$1430.89 CDN
includes u-joints and output shaft
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Gen 1 upper 470 485 Chevy engine
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P/N SE106-181 Mercruiser R/MR/Alpha One Generation 1 complete upper unit. For 1976 - 1982 models with
4 cylinder 470 / 485 models and 1986 - 1990 4.3 liter V6. 1.81 / 1.84 gear ratio with a 17-19 tooth count. Compatible with
inline 4 cylinder 3.7 liter motors serial numbers 4208730 to 6225576, and 4.3 liter 185 / 190 horsepower V6 motors serial
numbers 6225577 to 0D469858.
*Note - before ordering, please measure your output shaft that goes into the engine.
New upper units come with an output shaft that measures 9-9/16 inch. If your shaft is the 'short style' which measures 8-1/8
inches, please contact us for availability.
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$1099.89 US
includes u-joints and output shaft
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$1430.89 CDN
includes u-joints and output shaft
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Mercury 165 horsepower
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P/N SE106-165 Mercruiser upper unit. For 1970 - 1977 models with 165 horsepower inline 6 cylinder, 1.65
/ 1.62 gear ratio with a 24-24 tooth count.
Compatible with 165 models serial numbers 2763442 and up.
*Note - before ordering, please measure your output shaft that goes into the engine. Outdrives with upper units come
with an output shaft that measures 9-9/16 inch. If your shaft is the 'short style' which measures 8-1/8 inches, please contact
us for availability.
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$1099.89 US
includes u-joints and output shaft
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$1430.89 CDN
includes u-joints and output shaft
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Chevy GM 350 305 V8
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P/N SE106-150 Mercruiser and Gen 1 upper unit assembly. For 1974 - 1990 models with 205 / 230 / 260
horsepower V8 motors, 1.47 and 1.50 gear ratio with a 20-22 tooth count.
Compatible with 888, 898, 228, 225-S,
233, 250, 260, 5.0 liter 305 and 5.7 liter 350 models serial numbers 2763442 and up.
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$1099.89 US
includes u-joints and output shaft
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$1430.89 CDN
includes u-joints and output shaft
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Sterndrive Installation Hardware Kits
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Price
(USD)
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Price
(Canadian)
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90-106-03K Gen 1 installation kit
Intermediate shift shaft
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P/N 90-106-03K Mercruiser Mercury marine / Alpha One Gen 1 sterndrive installation parts and accessories
kit.
Includes accessories and parts:
bell housing locknuts,
washers,
mounting gasket,
intermediate shift shaft,
bolt for anode (anode not included),
water pump plastic water passage tube,
sterndrive locknuts
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$99.96 US
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$131.96 CDN
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90-116-03K Gen 2 installation kit
Installation bolts
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P/N 90-116-03K Gen 2 sterndrive hardware installation parts and accessories kit.
Includes
accessories:
lower unit bolts with locknuts,
washers,
mounting gasket,
bell housing locknuts,
bolt for anode (anode not included),
water pump plastic water passage tube
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$80.96 US
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$104.96 CDN
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WARRANTY. All marine assembly outdrives manufactured by (“SEI”) are covered by warranty for
either a period of one (1) year for upper gear cases purchased without u-joints and output shafts, or two (2) years for lower
units and upper gear cases purchased with u-joints and output shafts from the date of actual purchase.
A condition
of qualification of these warranties is proof of purchase of the sterndrive engineering product. Proof of purchase must be
supplied by customer prior to warranty application and/or receiving warranty benefits.
These
one (1) year and two (2) year warranties against manufacturing defects in workmanship and parts are the sole and exclusive
warranty provided by sterndrive engineering and all other warranties and potential damages are limited and excluded. These
warranties commence on the shipment date of outdrives and parts to the customer sold by Boatparts.ca to the purchaser.
In the event of a warranty claim, all warranty issues must go directly through Sterndrive engineering, Florida. For
more information, see SEI marine limited sterndrive warranty or service information.
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Customers also purchased:
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Price
USD
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Price
Canadian
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12110 Water pump kit
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Repair parts included:
12312 46-57234T1 Base
12410 46-96148T1 Housing
12510 32435-1 Wear Plate
12820 23-29804T Guide Tube
21330 25-30271 Slinger
31010
27-85608-1 Gasket
31020 27-858524 Gasket
31040 27-856704 Gasket
31170 (2) 12-19183-3 Gasket
81160 25-30613
O-ring
85140 26-45577-1 Seal
89840 47-89984T4 Impeller
Bravo and Evinrude repair components also
available
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$51.89
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$66.89
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Bellows Kit
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30-803097T1
Parts included:
21905 Gimbal Bearing
85910 Oil seal
39622 sterndrive installation gasket Kit
47110
Water Hose 3/4 inch
47120 Hose 5/8 inch
89050 U-Joint tube
89080 Shift Cable tube
89100 Exhaust tube
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$169.89
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$220.89
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87500 Upper housing gaskets
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P/N 87500 Seal kit
1964 - 1990 models
serial numbers
(1684188 - 0D469858)
26-32511A1
Mercury marine, Evinrude, Yamaha and Bravo seal kits also available.
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$24.95
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$30.00
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87501
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P/N 87501 Alpha 1 Generation 2
upper gear housing seal / gasket kit
(1991 and
up,
S/N 0A54004 - up)
26-88397A1
Evinrude and Bravo repair seal kits also available
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$25.95
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$33.95
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21450 Mercruiser Part 865436A03
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21450 Repair parts that are included:
21080 Mercruiser slide
21090 Set screw
21140 Shift cable arm
21430 Guide
21433 Set screw
21462 Shift wire wrapping
21463 Insert
21464 Wire
21432 Anchor
21710
Cable
89080 Bellow
21750 Set Screw
21790 Bellow clip
21791 Hose clamp
39622 Gasket kit Bravo
One sterndrive cable also available, GLM P/N 2171
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$89.95 USD
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$118.95 CDN
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Technical Support for your boat by video
Technical and repair support available
from Wayne at our Toronto, Canada location
Search on Google for Mercury marine sterndrive, Bravo, Evinrude repair YouTube
videos by Wayne Coll or T.C.Electronics/Marine
we have about 72 boat repair videos in total as of 2021 there is no charge
to view
Sample of 3 Mercruiser sterndrive videos Sterndrive Bellow & Shift Cable Repairs 593,226 views
Water pump removal and repair parts video 320,210 views
How I remove my gen 2 lower unit 76,349 views
Evinrude,
Yamaha, Bravo, Mercury marine parts also available
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