Alpha 1 Gen 2 parts drawing *Upper gearcase 23-44

Upper gearcase outdrive parts with exploded view items
23 to 44 in our tech drawings

Last updated on 12/08/2023, 01:17:46

  • Parts 23 to 44
  • Click here for Mercruiser Alpha one drawings

Mercruiser Alpha 1 Gen. 2 upper gearcase parts drawing

87501 seal kit

A
P/N 87501
 Alpha one generation 2 seal kit $29.99

39622 Bell housing gasket kit

B
P/N 39622
 Alpha one generation II gasket kit $9.95

28380 Spacer

23
P/N 28380
 Double bearing spacer (2 units) OEM 15-71013 $9.99

28330 tension washer

24
P/N 28330
 Tension washer 12-45810 $4.95

28360 nut

25
P/N 28360
 Nut 11-22339 $4.95

22420 Screw set

26
P/N 22420
 Draining screw set OEM 10-79953Q2 $5.99

31170 gasket

27
P/N 31170
 Gasket for drain screw (5 units) 12-19183-2 $9.99

28410 locknut

28
P/N 28410
 Lock nut 11-817618 $4.95

28420 washer

29
P/N 28420
 Washer 12-45176 $4.95

28430 allen bolt

30
P/N 28430
 Bolt 10-816601 $4.95

12930 Spring kit

31
P/N 12930
 Spring kit 24-17997A1 $4.95

32
P/N 12831
 Grommet (Included in seal kit)

12829 guide tube

33
P/N 12829
 Guide tube 32-860220 $12.99

12711 anode

34
P/N 12711
 Anode 821629A1 $27.95

05009 lock washer

35
P/N 05009
 Lock washer (5 units) 13-78968 $4.95

22440 Screw

36
P/N 22440
 Screw 10-28668 $4.95

28300 Alpha screw

37
P/N 28300
 Screw 10-98794

38
P/N 12965
 Plug 861738

39
P/N 12966 
Plug 19-32297

28402 cover assembly

40
P/N 28402
 Top cover assembly with bearing and bolts 828692Q1 $190.95

41
P/N 10991 Filler Wall 815932

42
P/N
 Wear pad OEM 814387

21820

44
P/N 21820
 bearing 31-30894A1 $47.99