Sierra Marine Parts Catalog: Mercruiser
Figure
Figure
#
Description
Part #
O.E.M. #
Qty.
#
Description
Part #
O.E.M. #
Qty.
Gearcase 50-75 HP 3 Cyl 1979-2003
Complete Service Kit
43-803119T 1
1
1
Drive Shaft Housing
1.84:1/ 1.81:1 Gear Set
(oL100009 & Up)
1547-861063A 4
1
(tooth count... 17/19)
43-75325A3
1
2
Screw
10-79953A2
1
Std. rebuild Kit
43-803114T 1
1
3
Washer
12-19183,
Complete Service Kit
43-803120 T 1
1
12-20260
1
1.98:1/ 1.94:1 Gear Set
4
Filler Wall
N/A
815932
1
(tooth count... 20/24)
43-55778A3
1
5
oil Seal
26-66302
Ar
Std. rebuild Kit
43-803101T 1
1
6a
Wear pad (port)
NSS
814386
1
Complete Service Kit
43-803118T 1
1
6b
Wear pad (Stbd)
NSS
814387
1
23a
Upper Unit Gear Set
7
Water Tube
32-860220
1
(0L100009 & Up)
8
Seal
NSS
26-88397
1
1.47:1 Gear Set
9
Yoke Assembly
(tooth count... 20/22)
43-853641A2
1
(oK999999 & Below)
814819A2
1
Complete Service Kit
43-803103T 1
1
Yoke Assembly (oL100009 & Up)
864281A2
1
1.62:1 & 2.0:1 Gear Set
10a
Socket, Center (old design)
39383T
1
(tooth count... 24/24)
43-853640A2
1
10b
Socket, Center GKN Series
NSS
865503T
1
Complete Service Kit
43-803104T 1
1
11
Cross and Bearing
1.81:1 Gear Set
11a
D469859 - F679999 (old design)
75832A2
2
(tooth count... 17/19)
43-853643A2
1
11b
F680000- oK999999
Complete Service Kit
43-803105T 1
1
(old design- permalube)
805536A2
2
1.94 & 2.4:1 Gear Set
11c
oL100009 & Up (GKN Series)
865493A01
2
(tooth count... 20/24)
43-853642A2
1
12a
Yoke, Coupling end
Complete Service Kit
43-803106T 1
1
(oK999999 & Below)
59830A1
1
24
roller Bearing (All but 1.47:1 ratio)
43-803106T 1
1
12b
Yoke, Coupling end
24a
roller Bearing (1.47:1 ratio only)
31-32573A 1
1
(oL100009 & Up)
865491A01
1
25
Washer
12-45810
1
13a
Yoke, Gear end
26
Nut
11-22339
1
(oK999999 & Below)
46020T
1
27
Shim Kit
15-36178A1
1
13b
Yoke, Gear end (oL100009 & Up)
865492T
1
28
plug
NSS
861738
1
14
retaining Nut
816811-1
1
29
Drive Shaft, Upper (F680000 & Up)
45-55796-1
1
15
ring
35983
1
30
Bearing Assembly
16
o-ring
25-70937
1
30a
F680000 & Up (small bearing)
31-32575A1
1
17
Carrier Assembly (Set)
66081A2
1
30b
D494569 - F679999 (large bearing)
31-61100A1
1
18
oil Seal
26-68493
1
31
Shim Kit
19
roller Bearing Kit
31-35988A2,
31a
D494569 -F679999
15-45691A1
1
(D469859 - K999999)
A12
1
31b
F680000 & Up
15-32563A1
1
19a
roller Bearing Kit
32
o-ring
25-32546
1
(oL100009 & Up)
31-30894A 15
1
33
Cover Assembly, Top
20
Cup Spacer
31-35988A2,
(F680000 & Up)
828692A1
1
(Included with 18-1160)
A12
Ar
34
o-ring
25-25439
2
20a
Cup Spacer
34a
o-ring
25-35027
1
(Included with 18-1182)
NSS
23-853649A 1
Ar
35
Screw
10-98794
4
21
Shim Kit
15-35980A1
1
36
Check Valve Kit, oil passage
18-2715 KIT
24-17997A1
1
22
Shim Spacer
15-71013
1
37
oil Seal (Included in Kit)
NSS
--
1
23
Upper Unit Gear Set
38
Ball (Included in Kit)
NSS
--
1
(0D469859-0K999999)
39
Spring
NSS
--
1
1.5:1/ 1.47:1 Gear Set
43-18410A2,
40
Anode plate
821629A1
1
(tooth count... 20/22)
43-18411A2
1
41
Lockwasher
N/A
13-78968
2
Std.rebuild Kit
43-803116T 1
1
42
Screw
10-28668
2
Complete Service Kit
43-803102T 1
1
43
plug
N/A
19-824928
1
1.65:1/ 1.62:1 Gear Set
44
Washer
12-45176
4
(tooth count... 24/24)
43-45814A5
1
45
Bolt
10-816601
4
Std. rebuild Kit
43-803112T 1
1
Ar
As required
NSS Not Sold Seperate
N/A Not Available
Ar
701