Click here for tech drawing & photo of each part

Alpha 1 upper gearcase parts tech drawing

#	Description
A	# 87500 GLM Marine aftermarket Mercruiser parts seal kit for use with Alpha one upper gearcase units.	$34.89
1a	# 19000 Alpha One empty drive shaft housing OEM # 1547-9412A18	$604.89
1c	# 19100 Alpha one upper gear case assembly 20-22 gears 1.5 ratio assembly (new) OEM # 1547-9412A20	$1428.89
2	# 28400 Top cover assembly  OEM # 94998A4 Top comes with bearing # 21511, shim kit # 23261 and 4 bolts	$83.89
3a	# 80420 Top cover O-rings (5 units) (1 included in seal kit)	$4.89
4a	# 23260 Shim kit for (# 21510 bearing) OEM # 15-45691A1	$5.89
4b	# 23261 Shims for (# 21511 bearing) OEM # 15-32563A1	$4.89
5	# 21510 Bearing assembly O.D. 1-15/16" OEM # 31-61100A1	$19.89
5	# 21511 Roller bearing assembly O.D. 1-25/32" OEM # 31-32575A1	$16.89
6	# 11130 Upper drive shaft OEM# 45-55796	$75.89
7	# 81190 Drive shaft o-ring (5 units) (Included in seal kit)	$9.89
8a	# 11210 V8 heavy duty 20/22 gear set (1.50 / 1.47 Ratio) with HD bearing # 21560 included OEM # 43-18411A2	$342.89
8b	# 11220 6 Cyl. inline gear set (1.65 or 1.62 Ratio) 24-24 years 1970 to 1997 OEM # 43-45814A5	$256.89
8c	# 11230 V6 and 470/485 model gear set (1.84 or 1.81 Ratio) 17-19 OEM # 43-75325A3	$241.89
8d	# 11240 4 Cylinder inline 20/24 gear set (1.98 or 1.94 Ratio) OEM # 43-55778A3	$237.89
9a	# 21560 Roller bearing  assembly(1.50 ratio) OEM# 31-32573A1	$31.89
9b	# 21540 Roller bearing (1.65, 1.84, 1.98 Ratio) OEM# 31-35990A1	$28.89
9c	# 21550 Roller bearing (1.32 Ratio) OEM # 31-66818A1	$66.89
10	# 23270 Shims OEM # 15-36178A1	$5.89
11	# 85020  Oil seal  (Included in seal kit)	$11.89
12	# 85060 Oil seal (Included in seal kit)	$9.89
13	# 81180 O-rings for long yoke (5 units) (Included in seal kit)	$4.89
14	# 28050  U-joint assembly OEM# 814819A2	$444.89
15	# 28315 Long yoke  OEM # 814819A3  MR and Alpha one outdrive	$100.89
16a	# 28030 Heavy duty rockwell U-Joint OEM # 75832T-1	$45.89
17	# 28100  Socket for yoke	$49.89
18	# 28310 Yoke OEM# 46020-1	$58.89
19	# 28350 Retainer OEM # 816811-1	$18.89
20	# 28390  Upper gearcase ring	$8.89
21	# 82380 O-ring (Included in seal kit)
22	# 28370 Bearing carrier assembly OEM # 66081A2	$37.89
23	# 85030  Oil seal - yoke	$15.89
24a	# 21520 Roller bearing (All Ratio except 1.32) OEM # 31-35988A2	$107.89
25	# 23280 Double bearing shims (6 units) OEM # 15-35980A1	$7.89
26	# 28380 Spacer  (2 units) OEM # 15-71013	$6.89
27	# 28330 Tension washer OEM # 12-45810	$4.89
28	# 28360 Lock nut   OEM# 11-22339	$4.89
29	# 21731 Magnetic drain screw	$5.89
30	# 31170 Washer  (Included in seal kit)
31	# 28300 Cover screw OEM # 10-98794	$4.89
32	# 21890 Plug OEM # 19-47579	$4.89
33	# 21170 Lock nuts (5 units) OEM # 11-13439-1	$9.89
34	# 31150 Gasket for water cover pocket (Included in seal kit)
35	# 22440 water pocket screw OEM # 10-28668	$4.89
36	# 12200 Water pocket cover kit OEM # 42724A3	$21.89
37	# 21423 Bushing OEM# 23-32632	$14.89
38	Grommet
39	# 12202 Water pump tube OEM # 32-54236	$7.89
40	# 22031 Welch plug (1-1/4"O.D.) OEM # 19-42682	$4.89
41	# 22032 Pipe plug OEM # 22-42861-1 plug	$4.89
41	# 39622 Bell housing gasket kit OEM # 27-94996Q2	$6.89

omc@sterndrive.info

Need tech help drawing? Click Here

International Shipping Rates Click Here Money Orders Credit Cards PayPal USA Bank Transfer

Order on-line 24 - 7 with PayPal Credit Card Orders Click Here

Monday to Friday 9:30am - 5pm (416) 751-7326 Toll free number (877) 652-7278 Mercruiser Alpha One outdrives repair and trade-in shipping address Location map

Boating Links on the Web

Add your boating web site URL Submit URL free to our web site directory