OMC Parts Drawing *Cobra *Mercruiser *Alpha SEI Outdrives

Alpha One generation 2 upper gearcase years 1998 and up

Last updated on 4/5/2019, 1:26:35 AM

  • GLM Aftermarket Alpha 1 Gen 2 upper gearcase exploded view breakdown drawing
  • Compatible with all sterndrive models 1998 and up
  • Gear sets, bearings, drive shaft and U-joints
  • Mercruiser Alpha One Generation 2 OEM numbers for easy cross reference

 

Upper gearcase 1998 and up

Mercruiser Alpha 1 Gen 2 1998 up

Photo

Description / OEM #

Price
(USD)

Price (Canadian)

29020 Driveshaft housing assembly

#1 Driveshaft housing assembly

 

1547-861063A4

$1,105.95

$1,459.95

Upper gearcase 1991 - 1997

80420 O-ring

#2 O-ring

25-32546

$4.95

$6.95

Upper gearcase 1991 - 1997

23261 Shim

#3 Shim for GLM Marine bearing number 21511 bearing.

 

15-32563A1

$5.95

$7.95

ball bearings

21511 Tapered roller bearing assembly

#4 Bearing assembly (O.D. 1-25/32) (1996-thru)

 

31-32575A1

$8.95

$11.95

11131 Mercruiser Alpha 1 Gen 2 Drive shaft

#5 Mercruiser Alpha 1 Gen 2 Drive shaft

45-55796

$106.95

$140.95

11131 Mercruiser Alpha 1 Gen 2 Drive shaft

#5 Mercruiser Alpha 1 Gen 2 Drive shaft

45-55796

$106.95

$140.95

Gear set

11214 Gear set

#6 Gear set (1.47 Ratio)(20-22)
43-853641A2

$508.95

$671.95

11222 Gear set 24-24 ratio 1998 up

#6 Gear set (2.00/1.62 Ratio)(24-24)
43-853640A2

$508.95

$671.95

11233

11233 Gear set OEM 43-853643A2

#6 Gear set (1.81 Ratio)(17-19)

 

 

43-853643A2

$466.95

$615.95

Gear set

11244 Gen 2

#6 Gear set (2.40/1.94 Ratio)(20-24)
43-853642A2

$508.95

$671.95

ball bearings

21540 Roller bearing

#7 Roller bearing (1.62, 1.81, 1.94, 2.00, 2.40 Ratio)
31-35990A1

$30.95

$40.95

ball bearings

21560 Roller bearing

#7 Roller bearing (1.47 Ratio)

31-32573A1

$40.95

$53.95

23270 Shim

#8 Shim

15-36178A1

$9.95

$12.95

85022 Oil seal

#9 Oil seal
26-864319

28070 Alpha 1 Gen 2 internal ring 1998 up

#10 U-joint assembly (Internal lock-ring style)
814819A7

$501.95

$662.95

U Joints

28080 Drive shaft parts with external lock ring

#10 U-joint assembly (External lock-ring style)
864281A2

$553.95

$730.95

81180 O-ring

#11 O-ring
25-25439

$4.95

$6.95

82150 O-ring

#11 O-ring

 

25-35027

$4.95

$6.95

U Joints

28315 Yoke - long

#12 Yoke – Long (Internal lock-ring style)
814819A3

$103.95

$136.95

U Joints

28316 Yoke - long

#12 Yoke – Long (External lock-ring style)
864281A01

$175.95

$231.95

U Joints

28030 U-joint

#13 U-joint (Internal lock-ring style)
75832T1

$44.95

$58.95

U Joints

28040 U joint

#13 U-joint (External lock-ring style)
865496A01

$100.95

$132.95

28100 Socket

#14 Socket (Internal lock-ring style)

39383-1

$64.95

$85.95

28110 Socket

#14 Socket (External lock-ring style)
865503T

$50.95

$66.95

U Joints

28312 Yoke

#15 Yoke (Internal lock-ring style)
853635

$123.95

$163.95

U Joints

28322 Yoke

#15 Yoke (External lock-ring style)

 

864282T

$106.95

$140.95

28350 Mercruiser Retainer

#16 Mercruiser Retainer

 

816811-2

$22.95

$29.95

28390 Ring

#17 Ring
35983

$11.95

$15.95

82380 O-ring

#18 O-ring
25-70937

$4.95

$6.95

28370 Alpha 1 Gen 2 Carrier assembly

#19 Alpha 1 Gen 2 Carrier assembly

66081A2

$36.95

$48.95

85030 Oil seal

#20 Oil seal
26-826894

$12.95

$16.95

ball bearings

21522 Bearing set

#21 Mercruiser Roller bearing kit
31-30894A5

$122.95

$161.95

23280 Shim

#22 Shim

15-35980A1

$10.95

$13.95

28380 Spacer.

28380 Spacer

#23 Spacer

15-71013

$4.95

$6.95

28330 Tension washer

#24 Tension washer

12-45810

$4.95

$6.95

28360 Lock nut

28360 Lock nut

#25 Lock Nut

11-22339

$4.95

$6.95

22420 Alpha 1 Gen-2 Screw kit

22420 Alpha 1 Gen 2 Screw kit

#26 Alpha 1 Gen 2 Screw kit

10-79953Q2

$4.95

$6.95

31170 Washer

#27 Washer

12-19183-2

$4.95

$6.95

28410 Locknut

#28 Locknut

11-817618

$4.95

$6.95

28420 Washer

#29 Washer

12-45176

$4.95

$6.95

28430 Bolt OEM 10-816601

#30 Bolt

10-816601

$4.95

$6.95

12930 Spring kit

#31 Spring kit

24-17997A1

$4.95

$6.95

12831 Alpha 1 gen 2 grommet OEM 26-88397

#32 Grommet

26-88397

$4.95

$6.95

12829 Guide tube

#33 Guide tube

32-8602200

$9.95

$12.95

Mercruiser Alpha 1 Gen 2 Anode kits

12711 Anode

#34 Anode

821629Q1

$27.95

$36.95

05009 Lockwasher

#35 Lockwasher

13-78968

$4.95

$6.95

22440 Screw.

22440 Screw

#36 Screw

10-28668

$4.95

$6.95

28300 Screw

28300 Screw

#37 Screw

10-98794

$4.95

$6.95

12965 Plug

#38 Plug

861738

12966 Plug

#39 Plug

 

19-33297

$4.95

$6.95

28402 Mercruiser Alpha 1 Gen 2 Cover assembly

#40 Mercruiser Alpha 1 Gen 2 Cover assembly

 

828692A1

$190.95

$251.95

10991 Filler wall

#41 Filler wall
815932

$4.95

$6.95

12663 Wear pad

#42 Wear pad – Port

814386

$4.95

$6.95

12664 Wear pad

#42 Wear pad – Starboard

814387

$4.95

$6.95

28381 Spacer

#43 Spacer
23-853649
ball bearings

21820 Bearing

#44 Bearing

 

31-30894A1

$35.95

$46.95

Seal Kits

87501 Gearcase seal kit

#45 Gearcase seal kit

26-88397A1

$25.95

$33.95

39622 Mercruiser Mounting kit

#46 Mercruiser Mounting kit

27-94996T2

$9.95

$12.95