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- GLM Aftermarket lower unit / upper gearcase exploded view breakdown drawing
- Compatible with all sterndrive
models up to 1990
- Gears, bearings, drive shaft and U-joints
- Mercury OEM numbers for easy cross reference
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Photo
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Description / OEM #
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Price
(USD)
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Price
(Canadian)
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87500
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Item A P/N 87500 Seal kit
26-32511A1
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$29.89
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$39.89
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12110
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Item B
P/N 12110 Complete water pump kit (1970 - 1983, MC-1 and R models, serial numbers 2763442-6854392).
Click on picture for newer 1984-1990 Alpha One and 1991 and up Gen 2 models.
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$51.89
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$66.89
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51220-51140
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Item C
P/N 51220-51140 GM 4.3L V6 center rise exhaust manifold kit with riser and gaskets. 1986
and up. Click on photo for all other engine / model manifolds.
99746A17-807988A2
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$484.89
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$629.89
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SEI upper gear case
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Item 1 SE106-UP New upper SEI upper gear case assembly. All ratios available for 4 cylinder, 6 cylinder and V8. Replaces most 1970 - 1990 models, MC-1, R /
MR and Alpha 1 Gen 1, serial numbers 2791957 - OD469858)
*Note - these units
are only compatible with units that have the 9-9/16" output shaft yoke. If you have a shorter yoke shaft which measures
8-1/8", this unit will not work. Please contact us to order the shorter yoke version.
1547-9412A20
1547-9412A21
1547-9412A22
26-33144A2
1547-9412A19
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$1099.89
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$1430.89
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28400 Top cover assembly
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Item 2 P/N 28400 Top cover assembly (includes bolts, shims and bearing 1-25/32"
o.d.)
Note: only compatible with MR/Alpha 1 Gen 1 models, years 1983-1990 measure bearing size
before ordering.
94998A4
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$130.89
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$170.89
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80420
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Item 3
P/N 80420 O-rings (5)
25-32546
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$11.89
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$15.89
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23260 Shim
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Item 4A P/N 23260 Shim (For No. 21510) 15-45691A1
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$14.89
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$18.89
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23261
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Item 4B P/N 23261 For bearing 21511 O.D. 1-25/32.
(Bore size
1.7813)
15-32563A1
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$12.89
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$16.89
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21510
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Item 5A P/N 21510 Bearing
(1-15/16" O.D.) 25-32546
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$36.89
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$47.89
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21511
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Item 5B P/N 21511 Bearing
(1-25/32" O.D.) 25-32546
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$19.89
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$25.89
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Drive Shaft
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Item 6 P/N 11130 Vertical drive shaft 45-55796
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$107.95
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$141.95
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80190
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Item 7 P/N 80190 O-rings (5) 25-55801
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$6.89
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$8.89
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11210 Heavy duty gear set
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Item 8A P/N 11210 Gear Set (1.50 or 1.47 Ratio) (20-22) for V8 models up
to 1997
43-18410A4
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$430.89
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$559.89
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gear set
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Item 8B P/N 11220 (1.65 or 1.62 Ratio) (24-24) for 165 and inline 6 cylinder
models, 1970 - 1997 serial numbers 2763442 - K999999
43-45814A5
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$268.89
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$348.89
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11230
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Item 8C P/N 11230 (1.84 or 1.81 Ratio) (17-19) for V6 models up to 1997 43-75325A3
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$337.89
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$438.89
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11240-4 cylinder 43-55778A3
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Item 8D P/N 11240 (1.98 or 1.94 Ratio) (20-24), for 120/140 and 4 cylinder
models up to 1997
43-55778A3
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$320.89
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$416.89
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21560 Alpha One
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Item 9A P/N 21560 Roller (1.50 Ratio) 31-32573A1
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$52.89
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$68.89
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21540
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Item 9B P/N 21540 Roller Bearing (1.65, 1.84, 1.98 Ratio) 31-35990A1
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$39.89
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$50.89
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23270 Mercruiser Alpha 1 shim kit
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Item 10
P/N 23270 Shims
15-36178A1
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$14.89
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$18.89
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85020 Oil seal
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Item 11 P/N 85020 Oil seal 26-32511
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$16.89
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$21.89
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85060
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Item 12 P/N 85060 Oil seal 26-96503
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$11.89
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$14.89
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81180
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Item 13 P/N 81180 O-rings (5) 26-32511
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$4.95
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$5.95
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28050 Drive shaft parts with internal lock ring
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Item 14 P/N 28050 U-joint assembly (includes drive shaft, universal joints,
socket and short yoke
814819A2
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$392.95
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$518.95
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28315 Drive shaft
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Item 15
P/N 28315 Drive shaft - new and used shafts available.
814819A3
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$147.89
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$191.89
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28030 U-Joint
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75832T1
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$52.89
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$68.89
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28100 Socket
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Item 17 P/N 28100 Socket (universal joints must be installed, sold separate) 39383T
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$89.89
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$115.89
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28310 Yoke
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Item 18 P/N 28310 Yoke (short) 46020-1
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$79.89
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$102.89
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28350 Retainer
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Item 19
P/N 28350 Retainer
816811-1
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$28.89
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$37.89
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28390 Ring
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35983
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$14.89
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$19.89
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82380
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Item 21 P/N 82380 O-ring (5 units) 25-70937
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$12.95
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$15.95
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28370 Alpha Carrier Assembly
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Item 22 P/N 28370 Carrier assembly 25-70937
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$51.89
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$66.89
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85030
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Item 23 P/N 85030 Oil seal 26-823894
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$18.89
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$23.89
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21520
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Item 24 P/N 21520 Double bearing with spacer. Compatible with all ratios
except 1.32.
31-35988A2
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$179.89
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$234.89
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23280
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15-35980A1
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$21.89
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$27.89
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