Mercruiser Lower Gear Repair Kits - Sterndrive

Lower Gear Chart - Gear Housing Gear Repair Kits 

MERCURY® MERCRUISER® DRIVE SYSTEMS

Bravo lower unit gear repair kit

Find your OEM Mercruiser lower unit gear case gears & lower gear repair kits for every Mercruiser drive including Alpha, Bravo, and XR drives here quickly and easily. Save money with these handy gear repair kits. Order online for discounted pricing. 

ModelGear RatioYear Range Serial # RangeGear Housing Repair KitForward GearPinion GearReverse Gear
I2.001963 1534570 - 1536617N/AN.L.A.N.L.A.N.L.A.
I2.001963 1536618 - 1684187N/AN.L.A.N.L.A.N.L.A.
IA1.841964 - 1966 1684188 - 1776348N/AN.L.A.N.L.A.N.L.A.
IB2.011964 - 1966 1684633 - 1775192N/AN.L.A.N.L.A.N.L.A.
IC1.681964 -1966 1685240 - 1777798N/AN.L.A.N.L.A.N.L.A.
IA EZ Shift1.841964 -1966 1776449 - 2065189N/AN.L.A.N.L.A.N.L.A.
IB EZ Shift2.011964 -1966 1775193 - 2065189N/AN.L.A.N.L.A.N.L.A.
IC EZ Shift1.681964 - 1966 1777799 - 2065189N/AN.L.A.N.L.A.N.L.A.
120/1401.981967 - 1972 2062141 - 3443920N/AN.L.A.N.L.A.N.L.A.
120/1401.981972 - 1977 3469428 - 4893634N/AN.L.A.N/AN.L.A.
120/1401.981978 -1982 4893635 - 6225576N/AN.L.A.N/AN/A
470/4851.841976 -1977 4208730 - 4893934N/AN.L.A.N/AN.L.A.
470/4851.841978 -1982 4893835 - 6225575N/AN.L.A.N/AN/A
1601.681967 - 1969 2065190 - 2763441N/AN.L.A.N.L.A.N.L.A.
1651.651970 - 1977 2763442 - 4890459N/AN.L.A.N/AN.L.A.
1651.651978 - 1981 4890460 and upN/AN.L.A.N/AN/A
8881.501971 - 1977 3106717 and upN/AN.L.A.N/AN.L.A.
225/2331.50/1.321974 -1977 3856268 and upN/AN.L.A.N/AN.L.A.
898/2281.65/1.501977 -1982 4782330 - 6225576N/AN.L.A.N/AN/A
250/2601.50/1.321977 - 1982 4791300 - 6225576N/AN.L.A.N/AN/A
RALL1983 6225577 - 6810537N.L.A.43-96084A7N/A43-92320T
MR/Alpha OneALL1984 -1990 6810538 - 0D46985843-803091T143-878087A4N/A43-824109A1
MR/Alpha One (CR)ALL1984 -1990 6810538 - 0D469858N.L.A.N.L.A.N/AN.L.A.
Alpha One SSALL1986 -1989 0A545004 and upN/A43-878087A4N/A43-824109A1
Alpha One Gen II1.98/1.84/1.65/1.501991 - 1995 0D469859 - 0F679999N.L.A.43-878087A4N/A43-824109A1
Alpha One Gen II2.401991 - 1995 0D469859 - 0F679999N.L.A.N.L.A.N/AN/A
Alpha One Gen II (CR)ALL1991 - 1995 0D469859 - 0F679999N.L.A.N.L.A.N/AN.L.A.
Alpha One Gen II1.94/1.81/1.62/1.471996 -1997 0F680000 - 0K999999N.L.A.43-878087A2N/A43-828073A1
Alpha One Gen II2.401996 -1997 0F680000 - 0K999999N.L.A.N.L.A.N/AN/A
Alpha One Gen II (CR)1.94/1.81/1.62/1.471996 -1997 0F680000 - 0K999999N.L.A.43-828289A1N/A43-828290T2
Alpha One Gen II1.94/1.81/1.62/1.471998 - 2021 0L100040 and up43-803073T143-878087A2N/A43-828073A1
Alpha One Gen II2.00/2.401998 - 2021 0L100040 and up43-803074T143-878617A2N/A43-853593A1
Alpha One Gen II (CR)1.94/1.81/1.62/1.471998 - 2021 0L100040 and upN.L.A.43-828289A1N/A43-828290T2
Alpha One Gen II (CR)2.001998 - 2021 0L100040 and upN/A43-855651A1N/A43-855652T1
Vazer2.77/2.582007 - 2009 0W995000 and upN/AN.L.A.N/AN.L.A.
Bravo IALL1988 - 2021 0B664190 and up43-803081T0243-14063A1N/AN/A
Bravo I XALL2000 - 2021 0M100001 and up43-803081T0243-14063A1N/AN/A
Bravo I XR/XZ1.50/1.362000 - 2021 0M100001 and upN/A43-818928A2N/AN/A
Bravo ll & II X1.81/2.00/2.201988 - 2021 0B664190 and up43-803083T0243-41657T43-41656TN/A
Bravo II & II X1.50/1.651988 - 2021 0B664190 and upN.L.A.43-82730343-827304TN/A
Bravo III & Ill X1.36/1.501988 - 2021 0B664190 and upN.L.A.43-805448A1N/AN/A
Bravo III & Ill X1.651988 - 2021 0B664190 and upN.L.A.43-824517A1N/AN/A
Bravo III & III X1.81/2.00/2.201988 - 2021 0B664190 and up43-803088T0243-822535A1N/AN/A
Bravo III & III X2.431988 - 2021 0B664190 and upN.L.A.43-828336A1N/AN/A
Bravo III XR1.652004 - 2021 0W240000 and upN.L.A.43-824517A1N/AN/A
Bravo III XR1.812004 - 2021 0W240000 and upN/A43-841910A01N/AN/A
Bravo III XR2.002004 - 2021 0W240000 and up43-803088T0243-822535A1N/AN/A
Blackhawk1.36/1.501994 - 2021 0F186717 and upN/A43-805448A1N/AN/A
Blackhawk1.651994 0F186717-0F392505N/A43-805448A1N/AN/A
Blackhawk1.651994-2021 0F392506 and upN/A43-824517A1N/AN/A
Blackhawk1.811994-2021 0F186717 and upN/A43-822535A1N/AN/A
TR2.001973-1993 3377316 and upN/AN.L.A.N.L.A.N/A
TRS1.331973-1993 3377316 and upN/AN.L.A.N.L.A.N/A
TRS1.501973-1993 3377316 and upN/AN.L.A.N.L.A.N/A