Page 242 - Canada Parts Guide (2021) - 8M0174475

MERCURY® MERCRUISER® DRIVE SYSTEMS

GEAR CHART - GEAR HOUSING

Gear Case Gears
Model Gear Ratio Year Range Serial # Range Gear Housing Forward Gear Pinion Gear Reverse Gear
Repair Kit
I 2.00 1963 1534570 - 1536617 N/A N.L.A. N.L.A. N.L.A.
I 2.00 1963 1536618 - 1684187 N/A N.L.A. N.L.A. N.L.A.
IA 1.84 1964 - 1966 1684188 - 1776348 N/A N.L.A. N.L.A. N.L.A.
IB 2.01 1964 - 1966 1684633 - 1775192 N/A N.L.A. N.L.A. N.L.A.
IC 1.68 1964 - 1966 1685240 - 1777798 N/A N.L.A. N.L.A. N.L.A.
IA EZ Shift 1.84 1964 - 1966 1776449 - 2065189 N/A N.L.A. N.L.A. N.L.A.
IB EZ Shift 2.01 1964 - 1966 1775193 - 2065189 N/A N.L.A. N.L.A. N.L.A.
IC EZ Shift 1.68 1964 - 1966 1777799 - 2065189 N/A N.L.A. N.L.A. N.L.A.
120/140 1.98 1967 - 1972 2062141 - 3443920 N/A N.L.A. N.L.A. N.L.A.
120/140 1.98 1972 - 1977 3469428 - 4893634 N/A N.L.A. N/A N.L.A.
120/140 1.98 1978 - 1982 4893635 - 6225576 N/A N.L.A. N/A N/A
470/485 1.84 1976 - 1977 4208730 - 4893934 N/A N.L.A. N/A N.L.A.
470/485 1.84 1978 - 1982 4893835 - 6225575 N/A N.L.A. N/A N/A
160 1.68 1967 - 1969 2065190 - 2763441 N/A N.L.A. N.L.A. N.L.A.
165 1.65 1970 - 1977 2763442 - 4890459 N/A N.L.A. N/A N.L.A. MERCURY® MERCRUISER®
165 1.65 1978 - 1981 4890460 and up N/A N.L.A. N/A N/A
888 1.50 1971 - 1977 3106717 and up N/A N.L.A. N/A N.L.A.
225/233 1.50/1.32 1974 - 1977 3856268 and up N/A N.L.A. N/A N.L.A.
898/228 1.65/1.50 1977 - 1982 4782330 - 6225576 N/A N.L.A. N/A N/A
250/260 1.50/1.32 1977 - 1982 4791300 - 6225576 N/A N.L.A. N/A N/A
R ALL 1983 6225577 - 6810537 N.L.A. 43- 96084A 7 N/A 43- 92320T
MR/Alpha One ALL 1984 - 1990 6810538 - 0D469858 43-803091T 1 43-878087A 4 N/A 43-824109A 1
MR/Alpha One (CR) ALL 1984 - 1990 6810538 - 0D469858 N.L.A. N.L.A. N/A N.L.A.
Alpha One SS ALL 1986 - 1989 0A545004 and up N/A 43-878087A 4 N/A 43-824109A 1
Alpha One Gen II 1.98/1.84/1.65/1.50 1991 - 1995 0D469859 - 0F679999 43-803069T 1 43-878087A 4 N/A 43-824109A 1
Alpha One Gen II 2.40 1991 - 1995 0D469859 - 0F679999 N.L.A. N.L.A. N/A N/A
Alpha One Gen II (CR) ALL 1991 - 1995 0D469859 - 0F679999 N.L.A. N.L.A. N/A N.L.A.
Alpha One Gen II 1.94/1.81/1.62/1.47 1996 - 1997 0F680000 - 0K999999 43-803071T 1 43-878087A 2 N/A 43-828073A 1
Alpha One Gen II 2.40 1996 - 1997 0F680000 - 0K999999 N.L.A. N.L.A. N/A N/A
Alpha One Gen II (CR) 1.94/1.81/1.62/1.47 1996 - 1997 0F680000 - 0K999999 N.L.A. 43-828289A 1 N/A 43-828290T 2
Alpha One Gen II 1.94/1.81/1.62/1.47 1998 - 2021 0L100040 and up 43-803073T 1 43-878087A 2 N/A 43-828073A 1
Alpha One Gen II 2.00/2.40 1998 - 2021 0L100040 and up 43-803074T 1 43-878617A 2 N/A 43-853593A 1
Alpha One Gen II (CR) 1.94/1.81/1.62/1.47 1998 - 2021 0L100040 and up N.L.A. 43-828289A 1 N/A 43-828290T 2
Alpha One Gen II (CR) 2.00 1998 - 2021 0L100040 and up N/A 43-855651A 1 N/A 43-855652T 1
Vazer 2.77/2.58 2007 - 2009 0W995000 and up N/A N.L.A. N/A N.L.A.
Bravo I ALL 1988 - 2021 0B664190 and up 43-803081T02 43- 14063A 1 N/A N/A
Bravo I X ALL 2000 - 2021 0M100001 and up 43-803081T02 43- 14063A 1 N/A N/A
Bravo I XR/XZ 1.50/1.36 2000 - 2021 0M100001 and up N/A 43-818928A 2 N/A N/A
Bravo II & II X 1.81/2.00/2.20 1988 - 2021 0B664190 and up 43-803083T02 43- 41657T 43- 41656T N/A
Bravo II & II X 1.50/1.65 1988 - 2021 0B664190 and up N.L.A. 43-827303 43-827304T N/A
Bravo III & III X 1.36/1.50 1988 - 2021 0B664190 and up N.L.A. 43-805448A 1 N/A N/A
Bravo III & III X 1.65 1988 - 2021 0B664190 and up 43-803087T02 43-824517A 1 N/A N/A
Bravo III & III X 1.81/2.00/2.20 1988 - 2021 0B664190 and up 43-803088T02 43-822535A 1 N/A N/A
Bravo III & III X 2.43 1988 - 2021 0B664190 and up 43-803089T02 43-828336A 1 N/A N/A
Bravo III XR 1.65 2004 - 2021 0W240000 and up 43-803087T02 43-824517A 1 N/A N/A
Bravo III XR 1.81 2004 - 2021 0W240000 and up N/A 43-841910A01 N/A N/A
Bravo III XR 2.00 2004 - 2021 0W240000 and up 43-803088T02 43-822535A 1 N/A N/A
Blackhawk 1.36/1.50 1994 - 2021 0F186717 and up N/A 43-805448A 1 N/A N/A
Blackhawk 1.65 1994 0F186717 - 0F392505 N/A 43-805448A 1 N/A N/A

2021 Mercury Precision Parts Guide 233