Alpha 1 & Generation 2 outdrive parts or drawings

T.C.Electronics / Marine

Alpha 1 upper gearcase drawing *Outdrive parts 1- 41

GLM Marine aftermarket Alpha One upper gearcase stern drive parts.
Printer friendly comprehensive exploded outdrive tech drawing

  • All GLM products are completely compatible and interchangeable with Mercruiser Alpha One parts
  • GLM has committed to producing high quality and cost effective aftermarket parts for the past two decades
  • If help is required, contact our service tech for advice troubleshooting your sterndrive unit at (416) 751-7326
  • Mercruiser Alpha one and 2 repair tools

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Mercruiser Alpha One upper gearcase
Mercruiser Alpha One upper gearcase

87500 Seal kit parts
87500 Seal kit parts
A
P/N 87500 GLM Marine aftermarket Mercruiser parts seal kit for use with Alpha one upper gearcase units $25.00

 
B
# 39622 OEM # 27-94996Q2 $7.89
(This gasket is is required to install the outdrive back onto the bell housing)

19000
19000
1A
P/N 19000 Empty drive shaft housing OEM # 1547-9412A18 $589.29

assembly 20 22
assembly 20 22
1C 
# 19100 Alpha one complete upper housings (all ratios available)
(new) OEM # 1547-9412A20 $1195.09

 
P/N 19100 Used Alpha one upper gear case assembly 20-22 gears 1.5 ratio assembly
*Call for availability

28400 cover bearing assembly
28400 cover bearing assembly
# 28400 Cover assembly with parts
OEM 94998A4 Top comes with bearing # 21511,
shim kit # 23261 and 4 bolts $83.89

   
21510
21510

5A

# 21510 upper cover tapered bearing assembly O.D. 1-15/16" OEM # 31-61100A1 $28.29

21511 bearing cover 1 25-32
21511 bearing cover 1 25-32

5B 

# 21511 Roller bearing for upper cover assembly O.D. 1-25/32"
OEM # 31-32575A1 $17.09

11130 drive shaft
11130 drive shaft
6
# 11130 Upper drive shaft OEM# 45-55796 $75.09

80420 o-ring
80420 o-ring
# 81190 Drive shaft o ring (5 units) (Included in seal kit) $9.89

 

Click here for upper housing gears

11210  gear set V8 22-20 gear ratio
11210 gear set V8 22-20 gear ratio
8A
# 11210 V8 heavy duty 20/22 Gears for Alpha 1 and Alpha one generation 2 with HD bearing
# 21560 included OEM 43-18411A2 $265.00 
ratio 1.50-1.47 / 20/22 gears

11220  24-24 1970-1997 6 Cyl
11220 24-24 1970-1997 6 Cyl
8B 
# 11220 6 Cylinder inline gear set (1.65 or 1.62 Ratio) 24-24 years 1970 to 1997 OEM # 43-45814A5 $199.00

11230  ratio 17-19 V 6 470-485
11230 ratio 17-19 V 6 470-485
8C
P/N 11230 V6 and 470/485 model gear set ratio. 1.81-1.84 / 17/19 gears OEM # 43-75325A3 $206.00

11240  20-24 ratio 1.98 4 cylinder
11240 20-24 ratio 1.98 4 cylinder
8D 
# 11240 4 Cylinder inline 20/24 gear set (1.98 or 1.94 Ratio) OEM # 43-55778A3 $199.00

21560  1.50
21560 1.50
9A 
# 21560 Roller bearing assembly (1.50 ratio)
OEM# 31-32573A1 $31.89 bearing tapered roller

21540  1.65 1.84 1.98
21540 1.65 1.84 1.98
9B 
# 21540 roller bearings (1.65, 1.84, 1.98 Ratio)
OEM 31-35990A1 $34.09

 
9C 
# 21550 Roller bearing for Mercruiser Alpha 17/19 gear set  (1.32 Ratio) OEM # 31-66818A1 $66.89

23270   driven gear bearing shim
23270 driven gear bearing shim
10 
# 23270 Shims OEM # 15-36178A1 $5.89

 
11 
# 85020 Oil seal
(Included in seal kit) $11.89

 
12 
# 85060 Oil seal
(Included in seal kit) $9.89

 
14 
# 28050  U-joint assembly
OEM# 814819A2 $405.89  yoke engine drive shaft

28315  drive shaft yoke
28315 drive shaft yoke
28030  U-joint
28030 U-joint
16A 
# 28030 Heavy duty Rockwell u joints OEM 75832T-1 $45.89

28100  socket
28100 socket
17 
# 28100 Socket for yoke $42.09

28310
28310
18 
# 28310 Yoke 
OEM# 46020-1 $58.89

28350 retainer nut
28350 retainer nut

19 

# 28350 Retainer nut OEM # 816811-1 $18.89

28390  ring
28390 ring
20 
# 28390 Upper gearcase ring $8.89

 

21 
# 82380 O-ring
(Included in seal kit)

28370 bearing carrier assembly
28370 bearing carrier assembly
22 
# 28370 Carrier assembly OEM 66081A2 $37.89

 
23 
# 85030 Oil seal - for yoke $15.89

21520  bearing set
21520 bearing set
24A 
# 21520 Roller bearing (All Ratio except 1.32) OEM # 31-35988A2 $107.89

 
25 
# 23280 Double bearing shims (6 units) OEM # 15-35980A1 $7.89

23280  shim kit
23280 shim kit
26 
# 28380 Spacer OEM # 15-71013
2 units $5.89

28330 tension washer
28330 tension washer
27
# 28300 Tension washer OEM 12-45810 $4.89

28360  nut
28360 nut

28

28360 Lock nut

OEM 11-22339 $4.89

 
29 
# 21731 Magnetic drain screw $5.89

 
30 
# 31170 Washer
(Included in seal kit)

28300 screw
28300 screw
31 
# 28300 Cover screw OEM # 10-98794 $4.89

21890  plug
21890 plug
32 
# 21890 Plug OEM # 19-47579 $4.89

21170  lock nuts
21170 lock nuts
33 
# 21170 Lock nuts (5 units) OEM # 11-13439-1 $9.89

 
34 
# 31150 Gasket (5 units) for water cover pocket (Included in seal kit) $9.89

22440 screw
22440 screw
35
# 22440 water pocket screw OEM # 10-28668 $4.89

 
 
37 
# 21423 Bushing
OEM 23-32632 $14.89

 
38 
Grommet

 
22031  welch plug 1.250 inch
22031 welch plug 1.250 inch
40 
# 22031 welch plug  (1-1/4"O.D.) OEM 19-42682 $4.89

 
41 
# 22032 Pipe plug OEM # 22-42861-1 plug $4.89