Mercruiser outdrive parts *Alpha 1 lower unit *Repairs

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Mercruiser Alpha 1 outdrive replacement

New and rebuilt sterndrives for 4 Cylinder, V6 and V8

  • GLM Marine replacement gearcases with full 2 year warranties
  • Compatible with 1970 - present models
  • Mercruiser, MR, Alpha 1 and Gen 2 models
  • All gear ratios available for all motors, 4 cylinder, V6 and V8
  • No core charge required on all outdrives

Replacement Lower Units

Description
OEM #

Price
USD

Price
Canadian

18100 Mercruiser Lower Unit 1623-8951A43

18100 Mercruiser Lower Unit

P/N 18100 New lower unit assembly for all ratios and motors, up to 300 hp. 2 year warranty

(1970 - 1990, MC-1, R/MR and Alpha One, serial numbers 2791957 - 0A545003)

1623-8951A43

$1399.95

$1846.95

18300 Alpha One Gen 2 Outdrive 1623-815822A53

18300 Alpha One Gen 2 Outdrive

P/N 18300 Lower gearcase assembly for Alpha 1 Generation 2 models, up to 300 hp. 2 year warranty

(1991 - present, serial numbers 0A545004 - up)

1623-8951A43

$1549.95

$1999.95

Upper Gear Housings

Description
OEM #

Price
(USD)

Price
(Canadian)

19600 Upper Gear Housing 1547-861063A12

19600 Upper Gear Housing

Complete upper gearcase housing assembly with drive shaft - ready to bolt onto the lower unit. All ratios available for

1991 and up, serial numbers 0A545004 and up

1547-861063A6, 1547-861063A12, 1547-861063A10, 1547-861063A8

$1399.00

Engine / Model

$1748.00

Engine / Model

19100 Drive Shaft Assembly 1547-9412A20

19100 Drive Shaft Assembly

Complete upper gearcase with drive shaft and u-joints. All ratios available for

1970 - 1990, serial numbers 2791957 - 0A545003

1547-9412A20, 1547-9412A21, 1547-9412A22, 1547-9412A23, 1547-9412A19

$1199.00

Engine / Model

$1498.00

Engine / Model

Customers also purchased:

Price
USD

Price
Canadian

12110 Water pump kit

12110 Water pump kit

P/N 12110
lower unit water pump kit
1970 - 1983, serial numbers 2763442-6854392

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

$44.95

$54.95

21950 Bellows kit

Bellows Kit

P/N 21950 Mercruiser lower unit transom service kit, includes accordion style exhaust (1973 - 1990, serial numbers 3469428 - 0D469858)

30-803097T1

Parts included:
21905 Gimbal Bearing
85910 Oil seal
39622 Outdrive 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

$145.95

$192.95

87500 Mercruiser upper housing gaskets 26-32511A1

87500 Mercruiser upper housing gaskets

P/N 87500 Seal kit

1964 - 1990 models

serial numbers
(1684188 - 0D469858)

26-32511A1

$24.95

$30.00

87501 Alpha One Gen 2 upper 26-88397A1

87501

P/N 87501 Alpha 1 Generation 2

upper gear housing seal / gasket kit

(1991 and up,
S/N 0A54004 - up)

26-88397A1

$25.95

$33.95

58232 GLM exhaust manifold kit 1983-2001

58232 GLM exhaust manifold kit 1983-2001

P/N 58231 / 58232 Complete Mercruiser GM V8 manifold set with 3 inch or 4 inch riser.
Included
P/N 51230 Cast iron manifold assembly
860246Q11 x 2

P/N 51110 / 98504A3 or 51140

807988A2 Elbow - riser (3 inch or 4 inch) x 2

P/N 31100 Gasket 27-33395 x 2

P/N 30240 Gasket 27-863724 x 2

P/N 13991 90 degree hose fitting 22-806926 x 2

P/N 13992 Drain plug 22-806608A02 x 2

P/N 80140 O-ring for plug 25-45253 x 2

P/N 22391 Stud 16-49545 x 8

P/N 21248 Locknut 11-46335 x 8

$599 US

$791 CDN

51110 Elbow cast iron 3 inch

51110 Elbow cast iron 3 inch

   

P/N 51110 Elbow with mounting gasket - 3 inch 15 degree at hose connection / 98504A3

Model, CID, Year and Serial number for small block GM engines

185 229 V6 1985-1986 6330183-6919655 (4bbl)

185 262 V6 1985-1986 0A331455-0B527954 (2bbl)

205 262 V6 1985-1986 S/N 0A331455-0B527954

200 305 V8 1985-1987 S/N 6899058-0B525981

228 305 V8 1983-1995 S/N 6218462-0F600999

230 305 V8 1985-1987 S/N 6899269-0B525981

898 305 V8 1983-1984 S/N 6218462-68990571

260 350 V8 1983-1987 S/N 6218462-0B773304

260 350 V8 1981-1987 S/N 5907058-0F024999

$147 US

$194 CDN

M-21450-Mercruiser-outdrive-shift-cable-and-parts-865436A03.jpg

21450 Mercruiser Outdrive Part 865436A03

21450 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

$89.95 USD

$118.95 Canadian