Alpha 1 & Gen. 2 Outdrive Parts *Drawings *Videos

T.C. Electronics / Marine ( 416 ) 751-7326 home page | Alpha One - Mercruiser Shift Shaft Bushing

Mercruiser Alpha 1 seal kit and generation 2 parts

Upper gearcase/lower unit outdrive rebuild kits

  • Mercruiser upper housing and lower gear case seal kits
  • Compatible with Alpha One (1984-1990) and Generation 2 (1991 and up) models
  • When installing gaskets and o-rings, make sure to use a sealing compound (shown below)
  • GLM, Sierra and Mallory Marine units available

(1984 - 1990) - Serial Numbers 2062141 - 0D469858
(see bottom of page for Generation 2, 1991 and up)

Lower Unit

87510 Mercruiser Lower Seals 26-33144A2
87510 Mercruiser Lower Seals 26-33144A2

P/N 87510 Most popular GLM Seal kit - lower housing.

Replaces Mercury 26-33144A2. $35.15

Includes:
P/N 81160 O-ring 25-30613
P/N 81390 O-ring 25-90011
P/N 81180 O-ring 25-25439
P/N 31020 Gasket 25-858524
P/N 31010 Gasket 27-85608-1
P/N 31050 Gasket 27-42631-1
P/N 85040 Oil seal 26-16977
P/N 85070 26-89238
P/N 85581 26-816464
P/N 85700 26-12224
P/N 85140 26-45577-1
P/N 12830 25-39970
P/N 21330 Slinger 25-30271

18-2652
18-2652

P/N 18-2652 Sierra. Replaces 26-33144A2. $49.15

9-74304
9-74304

P/N 9-74304 Mallory. 26-33144A2. $51.15

88020 Water Pump Stern Drive Sealing Kit
88020 Water Pump Stern Drive

P/N 88020 GLM Stern drive rebuild set. Includes all water pump assembly and all seals, gaskets and o-rings. OEM 26-32511A1, 26-33144A2 and 46-44292A5. $99.15

(1984 - 1990) - Serial Numbers 2062141 - 0D469858
(see bottom of page for Generation 2, 1991 and up)

Upper Gear Case

87500 Alpha One Gear Case Seal Kit
87500 Alpha One Gear Case Seal Kit

P/N 87500 GLM gasket set for upper housing. Replaces Mercury 26-32511A1. $24.15 Most popular

18-2648
18-2648

P/N 18-2648 Sierra. Replaces 26-32511A1. $43.15

9-74303
9-74303

P/N 9-74303 Mallory Marine. 26-32511A1. $49.15

500-510
500-510

P/N 87500-87510 GLM Complete outdrive (upper and lower) set. OEM 26-32511A1 and 26-33144A2. $49.15

Alpha 1 Generation 2 (1991 - Up) - Serial Numbers 0D469859 - Up

Lower Unit

Gen 2 26-816575A3
Gen 2 26-816575A3

P/N 87511 GLM Marine gasket set. Replaces Mercury 26-816575A3. $45.15 Most popular

18-2646
18-2646

P/N 18-2646 Sierra. Replaces 26-816575A3. $66.15

9-74206
9-74206

P/N 9-74206 GLM Mallory. 26-816575A3. $66.15

87501 87511 Complete Outdrive
87501 87511 Complete Outdrive

P/N 87501-87511 GLM Complete upper and lower set.
#26-816575A3 and 26-88397A1. $59.15

Alpha 1 Generation 2 (1991 - Up) - Serial Numbers 0D469859 - Up

Upper Housing

26-88397A1
26-88397A1

P/N 87501 GLM Upper housing gasket set. Replaces Mercury 26-88397A1. $20.15 Most popular

18-2644
18-2644

P/N 18-2644 GLM Sierra. Replaces OEM 26-88397A1. $26.15

9-74302
9-74302

P/N 9-74302 Mallory Marine. 26-88397A1. $36.15

Bell Housing and Trim Cylinder

39622 Bell Housing Installation Gasket 27-94996T2
39622 Bell Housing Installation Gasket 27-94996T2

P/N 39622 Stern drive installation to bell housing gasket and parts.
27-94996T2. $6.15

87400 O-Rings Trim Cylinder 25-87400A2
87400 O-Rings Trim Cylinder 25-87400A2

P/N 87400 O-rings for Mercruiser trim cylinders 1983 and up.
OEM 25-87400A2. $17.15