Page 855 - 2021 Sierra Catalog
P. 855
I/O — MERCRUISER - ALPHA ONE/GEN II Drive Shaft Housing Components
Figure # Description
Part # OEM # Qty. Figure # Description Part # OEM # Qty.
18-2411
18-2244 10-79953A2 1 Std. Rebuild Kit 18-2258 43-803114T 1 1
18-2945
Drive Shaft Housing (OL100009 & UP)
1
2 Drain Screw
1547-861063A 4 1
12-19183, 1 Complete Service Kit 18-2365 43-803120 T 1 1
1.84:1/ 1.81:1 Gear Set (tooth count... 17/19)
18-2204
43-75325A3 1
3
Drain Screw Gasket
12-20260
N/A 815932 1
1.98:1/ 1.94:1 Gear Set (tooth count... 20/24)
43-55778A3 1 43-803118T 1 1
43-853641A2 1
43-803103T 1 1 43-853643A2 1
43-803105T 1 1 43-853642A2 1
43-803106T 1 1 43-803106T 1 1
4 Filler Wall 5 Oil Seal
18-2205
18-2056 26-66302 AR Std. Rebuild Kit 18-2259 43-803101T 1 1
6a
6b
7
8 Seal
NSS
NSS
18-3221
NSS 26-88397 1
23a
Complete Service Kit
Upper Unit Gear Set (0L100009 & UP)
1.47:1 Gear Set (tooth count... 20/22)
Complete Service Kit
1.81:1 Gear Set (tooth count... 17/19)
Complete Service Kit
1.94 & 2.4:1 Gear Set (tooth count... 20/24)
Complete Service Kit
Roller Bearing (All but 1.47:1 ratio)
18-2363
18-6351
18-6351K 18-6353
18-6353K 18-6352
18-6352K 18-1161
Wear Pad (Port) Wear Pad (Stbd) Water Tube
814386 1 814387 1 32-860220 1
9
10a 10b 11 11a
11b
11c
12a
12b
13a
13b
14
15 Ring 16 O-Ring
Yoke Assembly (OK999999 & Below)
Yoke Assembly (OL100009 & UP)
Socket, Center (old design)
Socket, Center GKN Series
Cross and Bearing
D469859 - F679999 (old design)
F680000 - OK999999 (old design- permalube)
OL100009 & UP (GKN Series)
Yoke, Coupling End (OK999999 & Below)
Yoke, Coupling End (OL100009 & UP)
Yoke, Gear End (OK999999 & Below)
Yoke, Gear End (OL100009 & UP)
18-9218 NSS
18-2128 NSS
18-2174 18-2097
18-6406
18-2146
NSS
18-2125
NSS
814819A2 1 864281A2 1
343831, 39383T 1 865503T 1
75832A2 2
8055361, 2 805536A1,
805536A2
865493A01 2 59830A1 1 865491A01 1 46020T 1 865492T 1 816811-1 1
24
24a
18-1142
26 Nut 18-3713 11-22339 1
Roller Bearing (1.47:1 Ratio only)
31-32573A 1 1
25 Washer 18-3712 12-45810 1
15-36178A1 1 45-55796-1 1
31-32575A1 1 31-61100A1 1
31
31a
31b
32 O-Ring 18-7161 25-32546 1
27
28 Plug NSS 861738 1
Shim Kit
18-2293 18-2324
Retaining Nut
18-3752
18-4296 35983 1 18-7169 25-70937 1
29
30 30a
30b
Drive Shaft, Upper (F680000 & Up)
Bearing Assembly
F680000 & UP (small bearing)
D494569 - F679999 (large bearing)
18-1179 18-1165
17 18 19
19a
20
20a
21 22 23
Carrier Assembly (Set) Oil Seal
Roller Bearing Kit (D469859 - K999999)
Roller Bearing Kit (OL100009 & UP)
Cup Spacer (Included with 18-1160)
Cup Spacer (Included with 18-1182)
Shim Kit Shim Spacer
Upper Unit Gear Set (0D469859-0K999999)
1.5:1/ 1.47:1 Gear Set (tooth count... 20/22)
Std.Rebuild Kit Complete Service Kit
1.65:1/ 1.62:1 Gear Set (tooth count... 24/24)
Std. Rebuild Kit Complete Service Kit
18-0577 18-2003 18-1160
18-1182
18-1160
NSS
18-2292 18-2296
18-2201
18-2256 18-2358 18-2203
18-2257 18-2364
Shim Kit
D494569 -F679999 F680000 & UP
18-2283 18-2282
15-45691A1 1 15-32563A1 1
66081A2 1
26-68493 1
31-35988A2, 1 A12
31-30894A 15 1
34a O-Ring 18-7117 25-35027 1 A12 35 Screw 18-3231 10-98794 4
33
Cover Assembly, Top (F680000 & Up)
18-2382
828692A1 1
34 O-Ring 18-7153 25-25439 2
31-35988A2, AR
23-853649A 1 AR
15-35980A1 1 15-71013 1
43-18410A2, 1 43-18411A2
43-803116T 1 1 43-803102T 1 1 43-45814A5 1
43-803112T 1 1 43-803119T 1 1
24-17997A1 1 — 1 — 1
36
37
38
39 Spring
Check Valve Kit, Oil Passage Oil Seal (Included in Kit) Ball (Included in Kit)
18-2715 KIT
NSS
NSS
NSS — 1
40
41 Lockwasher 42 Screw
43 Plug
44 Washer
18-6080
N/A 13-78968 2 18-3229 10-28668 2 N/A 19-824928 1 18-4858-9 12-45176 4
Anode Plate
821629A1 1
45
Bolt
18-3230
10-816601 4
AR
As Required
NSS Not Sold Separate
N/A
Not Available
837