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- Breakdown drawing of lower unit including trim tab, drain screw and insert screens
- Photos and Mercury
/ Mercruiser OEM part numbers listed beside each GLM part number
- Tech support Exploded view drawings
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12120 1984-1990 kit
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1A
P/N 12120 Water pump kit (Alpha 1 1984-1990). $48.89
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87510 Seal kit OEM 26-33144A2
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B# 87510 Seal and gasket kit $49.89
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30010 gasket
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Item 25
P/N 30010 Shift shaft gasket washer (5 units) OEM 12-31266 $7.89 |
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Item 26
P/N 85581 Oil Seal $11.89 *Included in P/N 87510 parts* |
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21010 bushing assembly
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Item 27
P/N 21010 Bushing assembly *Included in P/N 87510 seal kit |
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81180 o-ring shifter
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Item 28
P/N 81180 O-Ring *Included in P/N 87510 parts |
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32790 washers
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Item 29
P/N 32790 Washer *10 units OEM 12-27880 $4.95 |
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21132 clip
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Item 30
P/N 21132 Clip OEM 18-20233 $4.95 |
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21030 lower shift shaft
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Item 31
P/N 21030 Shift shaft OEM 77481-1 $37.95 |
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85140 Oil passage seal
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Items 32
P/N 85140 Seal OEM 26-45577-1 (5 units) $9.95 Included in P/N
87510 parts |
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Lower unit oil pump
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Items 33A P/N 401-11245-1 Mercruiser lower unit oil pump $19.89
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21731 Draining set
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Item 33B
P/N 21731 Oil plug magnetic drain screw OEM 22-67892A1 $10.89 |
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31170 Gasket for housing drain
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Item 34
P/N 31170 Washer gasket $14.89 (5 units). Also included in seal kit
P/N 87510 |
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21870 insert screen
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21880 insert screen
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Item 36
P/N 21880 Insert screen port side OEM 93424-1 $4.95 |
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12822
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Item 37 P/N 12822
Screw *5 units OEM 10-76156 $9.95
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21161 stainless steel lock nut
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Item 38
P/N 21161 Stainless steel lock nut OEM 11-45812
$4.95
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21170 Lock nuts 5 units
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Item 39
P/N 21170 Lock nuts *5 units OEM 11-13439-1 $14.89 |
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21740
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Item 40 P/N
21740 trim tab screw (1 unit) OEM 10-32470 $9.89
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22430 Allen bolt
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Item 41
P/N 22430 Bolt OEM 10-30206 $4.95 |
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12670 Anode
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Item 42
P/N 12670 Trim tab anode OEM 31640A1 $14.89
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21600 bearing
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Item 43A
P/N 18-1150 Drive shaft
OEM 31-92366A1 MC-1 / R serial 4893835 - 62255757 $75.29
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21610 Drive shaft pinion gear bearing
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Item 43B
P/N 21610 Drive shaft pinion bearing OEM 31-42647A1 MR
/ Alpha 1 serial 6225577 and up $43.95
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