Alpha One & Gen 2 Outdrive Parts *Drawings *Videos

Mercruiser Alpha 1 parts drawing *Upper gearcase

All GLM products are completely compatible and interchangeable with OEM parts. GLM has committed to producing high quality and cost effective aftermarket parts for the past two decades If help or part numbers are required, contact our service tech for advice troubleshooting your sterndrive unit at (416) 751-7326 R MR, Mercruiser Alpha one and 2 repair tools Bell housing drawing

	Click on video for upper gearcase repair help
87500 Seal kit parts	A P/N 87500 GLM Marine aftermarket seal kit for upper gear-case $24.99
39622 OMC Bell housing gasket kit	B P/N 39622 OEM 27-94996Q2 $9.95 (This gasket is required to install the outdrive back onto the bell housing)
19000 Upper gearcase	1A P/N 19000 Empty drive shaft housing / 1547-9412A18
upper gear case assembly 20 22	1C P/N SE106-116 Complete SEI Marine upper housings (all ratios available) (new) 1547-9412A20 $1199.99
28400 cover assembly	P/N 28400 Cover assembly with parts 94998A4 Top comes with P/N 21511, shim P/N 23261 and 4 bolts $125.99   *Compatible with models from late 1983 to 1990 only
21510 Alpha 1 bearing cover 1-15-16	5A P/N 21510 upper cover tapered assembly O.D. 1-15/16" OEM 31-61100A1 $33.99
21511 Alpha 1 bearing cover 1 25-32	5B P/N 21511 Roller bearing for upper cover assembly O.D. 1-25/32" 31-32575A1 $12.99
11130 Alpha 1 upper drive shaft	6 P/N 11130 Upper drive shaft / 45-55796 $96.99
80190 Alpha 1 O-ring	7 P/N 80190 vertical drive shaft o ring (5 units) $4.99
11210 Alpha 1 gear set V8 22-20 gear ratio	8A P/N 11210 V8 heavy duty 20/22 Gears for Alpha 1 and generation 2 with HD P/N 21560 included / 43-18411A2 $399.99 ratio 1.50-1.47 ratio / 20/22 gears
11220 Alpha 1 gear set 24-24 1970-1997 6 cylinder	8B P/N 11220 6 Cylinder inline upper gear set (1.65 or 1.62 Ratio) 24-24 years 1970 to 1997 / 43-45814A5 $275.99
11230 Alpha 1 gear set ratio 17-19 V-6 470-485	8C P/N 11230 V6 and 470/485 model upper gear set ratio. 1.81-1.84 / 17/19 gears / 43-75325A3 $337.99
11240 Alpha 1 gear set 20-24 ratio 1.98 4 cylinder	8D P/N 11240 4 Cylinder inline, gear ratio 20/24 upper unit gear set (1.98 or 1.94 Ratio) 43-55778A3 $332.99
21560 Alpha bearing for 1.50 gear ratio	9A P/N 21560 bearing tapered roller (1.50 ratio) 31-32573A1 $47.99
21540 Alpha bearing 1.65 1.84 1.98 gear ratio	9B P/N 21540 roller type (1.65, 1.84, 1.98 Ratio), replaces Mercury part number 31-35990A1 $39.99
21550 - 1.32 ratio bearing	9C P/N 21550 Roller bearing for Mercruiser Alpha 17/19 gear set (1.32 Ratio) 31-66818A1 $75.95
23270 Alpha 1 driven gear bearing shim	10 P/S 23270 Shims / 15-36178A1 $11.99
85020 Oil seal upper gearcase driven gear	11 P/N 85020 Oil seal $11.95
85060 OMC Alpha 1 Oil seal	12 P/N 85060 Oil seal $11.99
28050 Mercruiser socket yoke drive shaft nut	14 P/N 28050 U joint assembly / 814819A2 $499.99
28315 Alpha 1 drive shaft yoke	15 Yoke engine drive shaft
28030 Alpha 1 U-joint	16A P/N 28030 Heavy duty Rockwell u joints replaces part number 75832T-1 $51.99
28100 Alpha Generation 2 socket	17 P/N 28100 Socket for yoke $79.99
28310 Alpha 1 Yoke shaft	18 P/N 28310 Yoke, 1970-1997 models / 46020-1 $79.99
28350 Alpha Generation 2 bearing retainer nut	19 P/N 28350 Retainer nut / 816811-1 $26.99
28390 Alpha Generation 2 ring	20 P/N 28390 Upper gear-case ring $13.99
82380 OMC O-ring	21 P/N 82380 O ring
28370 Alpha Generation 2 bearing carrier assembly	22 P/N 28370 Carrier assembly / 66081A2 $43.99
85030 Alpha 1 oil seal	23 P/N 85030 Oil seal - for yoke $14.99
21520 Alpha 1 bearing set	24A P/N 21520 Roller bearing (All Ratio except 1.32), 1964-1997 models. 31-35988A2 $179.99
23280 Alpha 1 shim kit	25 P/N 23280 Double bearing shims (6 units) 15-35980A1 $10.95
28380 Alpha 1 Spacer	26 P/N 28380 Spacer / 15-71013 Two units $9.99
28330 Alpha 1 tension washer	27 P/N 28330 Tension washer / 12-45810 $4.95
28360 Alpha Generation 2 nut	28 P/N 28360 Lock nut / 11-22339 $4.95
21731 Draining screw plug OEM 22-67892A1	29 P/N 21731 Magnetic drain screw. Same screw is used in the lower units. $9.95
31170 Mercruiser seal gasket	30 P/N 31170 Washer $9.99
28300 screw	31 P/N 28300 Cover screw / 10-98794 $4.95
21890 plug	32 P/N 21890 Plug / 19-47579 $4.95
21170 lock nuts	33 P/N 21170 Lock nuts (5) 11-13439-1 $15.99
31150 Water pump gasket	34 P/N 31150 gasket (5 units) for water cover pocket (Included in seal kit) $9.95
22440 screw	35 P/N 22440 water pocket screw / 10-28668 $4.95
Pocket cover tube passage 12200	36 P/N 12200 pocket cover kit. Replaces 42724A3, Sierra 18-3219. $32.99
21423 Alpha 1 bushing	37 P/N 21423 Bushing / 23-32632 $20.95
	38 Grommet
12202 Water Tube	39 Copper tube
22031 Alpha 1 welch plug 1.250 inch	40 P/N 22031 welch plug (1-1/4"O.D.) 19-42682 $4.95
22032 Mercruiser pipe plug	41 P/N 22032 Pipe plug OEM 22-42861-1 plug $6.99

T.C. Electronics/Marine (416) 751-7326 Copyright 2002 to 2024 all rights reserved