Mercruiser outdrive parts *Alpha 1 lower unit *Repairs

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Mercruiser Alpha One Outdrive Bearing

Tapered, roller and ball bearings for outdrive upper and lower units

  • Include inside and outside race
  • Complete rebuild kits for all models
  • For upper units and lower gearcases
  • Manufactured by Timkens, USA

Lower Unit

 

Price
(USD)

Price
(Canadian)

21570 Roller bearing

21570 Roller bearing

P/N 21570 For upper drive shaft (1970 - 1983 only)

31-53079A1

$24.95

$32.95

21610 Drive shaft 31-42647A1

21610

P/N 21610 For lower drive shaft

31-42647A1

$43.95

$53.95

21590 Mercruiser forward 31-35928T1

21590 Mercruiser forward

P/N 21590 For forward gear, outside. (1967 - 1995, S/N 2062141-0F679999)

31-35928T1

$59.95

$78.95

11420 31-30895T

11420

P/N 11420 For forward gear (inside)

26-816464-1

$14.95

$19.95

21620 Reverse 30-88957T

21620

P/N 21620 For reverse gear (1967 - present)

30-88957T

$37.95

$49.95

11410 Prop shaft 31-30956T

11410

P/N 11410 Prop shaft (all years)

31-30956

$10.95

$12.95

Lower Rebuild Kits

All Kits Include Bearings,
Seals and Shims

Price
(USD)

Price
(Canadian)

25110

25110 Rebuild kit

P/N 25110 Rebuild kit for MC-1 and 1 models, 1972 - 1983

31-803068T1

$233.95

$308.95

25120

25120

P/N 25120 Rebuild kit for Alpha 1 models (1984 - 1990)

31-803090T1

$306.95

$382.95

21530

31-803094T1

P/N 25130 Parts kit for Generation 2 models (1991 - 1995, S/N 0D469859-0F679999)

31-803094T1

$204.95

$268.95

25140 31-803095T1

25140

P/N 25140 Complete kit for Generation 2 models (1996 - 1997, S/N 0F680000-0K999999)

31-803095T1

$217.95

$287.95

25150 31-803096T1

25150

P/N 25150 Lower unit kit for Gen 2 models (1998 and up, S/N 0L100040 and up)

31-803096T1

$212.95

$279.95

Upper Gear Case

 

Price
(USD)

Price
(Canadian)

21510 Top cover 31-61100A1

21510

P/N 21510 For top cover (1971 - 1995) (1-15/16" O.D.)

25-32546

$28.95

$37.95

21511 31-32575A1

21511

P/N 21511 For top cover (1996 and up) (1-25/32" O.D.)

25-32546

$22.95

$28.95

21560 Alpha One 47-31-32573A1

21560 Alpha One

P/N 21560 (1.50 / 1.47 ratio, 1991 and up models)

31-32573A1

$40.95

$53.95

21540 Tapered 31-359900A1

21540

P/N 21540 (1.65, 1.84, 1.98 and 1.50 Ratio)

31-35990A1

$34.95

$43.95

21520 31-35988A12

21520

P/N 21520 Double bearing with spacer. Compatible with all ratios except 1.32, all years up to 1997 (up to serial number 0K999999)

31-35988A2

$149.95

$189.95

21522 31-30894A5

21522

P/N 21522 Same as above. For 1998 and up models only, serial number 0L100040 and up. Compatible with all ratios except 1.32.

31-30894A5

$122.95

$161.95

Gimbal / Bell Housing

 

Price
(USD)

Price
(Canadian)

21905 Gimbal 30-862540A3

21905 Gimbal

P/N 21905 Heavy duty gimbal bearing. Larger area between the shields allow for more grease filling.

30-862540A3, 30-60794A4

$53.95

$70.95

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