Page 231 - Canada Parts Guide (2021) - 8M0174475

MERCURY® MERCRUISER® DRIVE SYSTEMS

UPPER GEAR KIT UPPER GEAR KIT

43- 75325A 3 43-853643A 2
17‑19 teeth, 1.84/1.81 ratio 17‑19 teeth, 1.81 ratio Alpha One Gen II;
Fits MC‑I, R, MR, Alpha One & Gen II (s/n 0K999999 and below) (1976‑1997) 2.58 ratio Vazer
Fits Alpha One Gen II (s/n 0L000040 and above) (1998 & newer) & Vazer drive
UPPER GEAR KIT
UPPER GEAR KIT

MERCURY® MERCRUISER® 43- 55778A 3

43-853642A 2
20‑24 teeth, 1.98/1.94 & 2.40 ratio
Fits MC‑I, R, MR, Alpha One & Gen II (s/n 0K999999 and below) (1970‑1997)
2.77 ratio Vazer
UPPER GEAR KIT 20‑24 teeth, 1.94 & 2.40 ratio Alpha One Gen II;
Fits Alpha One Gen II (s/n 0L000040 and above) (1998 & newer) and Vazer drive
UPPER GEAR KIT

43-853641A 2
22‑20 teeth, 1.47 ratio
Fits Alpha One Gen II (s/n 0L000040 and above) (1998 & newer) 43-883476A 4
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 & III (1.81) (s/n 0B664190‑0F729999) (1988‑1995)
43-883473A 4
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 (2.00) & III (1.50, 1.65 & 2.00) (s/n 0B664190‑0F729999)
(1988‑1995)
43-883479A 4
23‑30 teeth
Note: May require new replacement shims to be ordered separately, see MCM
Service Bulletin 2001‑17
Fits Bravo I (1.65 ratio), II & III (2.20 ratio) (s/n 0B664190‑0F729999) (1988‑1995)
43-853640A 2
24‑24 teeth, 1.62 & 2.00 ratio
Fits Alpha One Gen II (s/n 0L000040 and above) (1998 & newer)

222 Telephone Order and Assistance, (905) 636-4749; Fax (800) 217-6517