Page 230 - Canada Parts Guide (2021) - 8M0174475

MERCURY® MERCRUISER® DRIVE SYSTEMS

43-803104T 1 UPPER GEAR KIT
24‑24 teeth, 1.62 & 2.00 ratio
Fits Alpha One Gen II (s/n 0L100040 and above) (1998 & newer)
43-803119T 1
24‑24 teeth, 1.62 ratio
Fits Alpha One Gen II (s/n 0D469856‑0K999999) (1991‑1997)
43-803105T 1
17‑19 teeth, 1.81 ratio
Fits Alpha One Gen II (s/n 0L100040 and above) (1998 & newer)
43-803120T 1
17‑19 teeth, 1.81 ratio
Fits Alpha One Gen II (s/n 0D469856‑0K999999) (1991‑1997)
43-803106T 1 43-8M0080756
20‑24 teeth, 1.94 & 2.40 ratio 20‑16 teeth, 1.32 ratio
Fits Alpha One Gen II (s/n 0L100040 and above) (1998 & newer) Fits MC‑I, R, MR, Alpha One & SS (1975‑1990)
43-803118T 1 UPPER GEAR KIT
20‑24 teeth, 1.94 & 2.40 ratio
Fits Alpha One Gen II (s/n 0D469856‑0K999999) (1991‑1997)
UPPER GEAR REPAIR KIT

43- 18411A 4 MERCURY® MERCRUISER®
For use w/ heavy duty 1.50 gears only. The HD 1.50 drive gear has a stepped
bearing surface requiring the use of a special bearing kit having 2 different I.D.
bearings.
43-803108T 2 Fits MR, Alpha One & SS (1984‑1990)
27‑29 teeth UPPER GEAR KIT
Note: May require new replacement shims to be ordered separately, see MCM
Service Bulletin 2001‑17
Fits Bravo I (1.36), II (1.50 & 1.81) & III (1.36 & 1.81) (s/n 0B664190‑0L999999)
(1988‑1999)
43-803107T 2
27‑32 teeth
Note: May require new replacement shims to be ordered separately, see MCM
Service Bulletin 2001‑17
Fits Bravo I (1.50), II (1.65 & 2.00) & III (1.50, 1.65 & 2.00) (s/n
0B664190‑0L999999) (1988‑1999)
43-803109T 2
23‑30 teeth
Note: May require new replacement shims to be ordered separately, see MCM
Service Bulletin 2001‑17 43- 18411A 2
Fits Bravo I (1.65), II (2.20) & III (2.20 & 2.43) (s/n 0B664190‑0L999999) 22‑20 teeth, 1.50/1.47 ratio
(1988‑1999) Fits MC‑I, R, MR, Alpha One & Gen II (s/n 0K999999 and below) (1971‑1997)
GEAR SETS - DRIVESHAFT HOUSING UPPER GEAR KIT

UPPER GEAR KIT

43- 45814A 5
24‑24 teeth, 1.65/1.62 ratio
Fits MC‑I, R, MR, Alpha One & Gen II (s/n 0K999999 and below) (1970‑1997)
43- 45569A 5
24‑24 teeth, 1.68 ratio
Fits 160 (1967‑1969)

2021 Mercury Precision Parts Guide 221