Mercury Mariner Outboard Lower Unit Gearcase Seal
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Sealing the gear oil inside the gearcase, and keeping water from intruding into the gearcase are the two aims of all the shaft seals, O-rings, spaghetti seals and gaskets in a lower unit. When you check your gear oil as a part of regular inspection, if you find the oil to be milky, it means water has been introduced somewhere. A seal kit and fresh gear oil will put you back in the safe zone. Need other parts? If you need parts not listed in the application guide, please see: |
Model | Model Notes | Origin | Serial No. Range | Lower Unit Seal Kit |
---|---|---|---|---|
2.5 | 0A855097 & up | 27-95220A 3 | ||
2.5 (4-Stroke) | JPN | 0R131842 & up | ||
3 | 0A855097 & up | 27-95220A 3 | ||
3.3 | Non-shift | 0D901217 & up | 27-95220A 3 | |
3.3 | Shift | 0D901217 & up | 27-95220A 3 | |
3.5 | Water-cooled | USA | 6202173 & up | Obsolete |
3.5 (4-Stroke) | JPN | 0R131842 & up | ||
3.6 | Water-cooled | USA | 5404657 & up | Obsolete |
BEL | 9252831 & up | |||
CAN | 7145388 & up | |||
4 | 1-Cylinder | USA | 5595532 - 0A809600 | 26-77066A 1 |
AUS | 8068065 & up | |||
BEL | 9258281 - 9477829 | |||
CAN | 7143688 & up | |||
4 | 1-Cylinder | USA | 0A855097 - 0G710612 | |
BEL | 9589154 - 0P016999 | |||
4 | 2-Cylinder | USA | 5589202 - 5595531 | Obsolete |
AUS | 8065265 - 8068064 | |||
BEL | 9256981 - 9258280 | |||
CAN | 7146488 - 7143687 | |||
4 (4-Stroke) | JPN | 0R000001 & up | ||
BEL | 0P073456 & up | |||
4.5 | 1-Cylinder | USA | 4107220 - 0A809600 | 26-77066A 1 |
AUS | 8026540 & up | |||
BEL | 9072179 - 9477829 | |||
CAN | 7045758 & up | |||
5 | 1-Cylinder | USA | 0A855097 & up | |
BEL | 9589154 & up | |||
5 (4-Stroke) | JPN | 0R000001 & up | ||
BEL | 0P073456 & up | |||
6 | USA | 0A197112 - 0T800749 | 26-41365A 3 | |
BEL | 9461526 & up | |||
6 (4-Stroke) | JPN | 0R000001 & up | ||
BEL | 0P073456 & up | |||
7.5 | (7.5, 75) | USA | 4851693 - 0A197111 | 26-77066A 1 |
AUS | 8051350 & up | |||
BEL | 9181726 - 9461525 | |||
CAN | 7111898 & up | |||
8 | USA | 0A197112 & up | 26-41365A 3 | |
BEL | 9461526 & up | |||
8 (4-Stroke) | USA | 0H000058 - 0H017349 | 26-41365A 3 | |
8 (4-Stroke) | USA | 0G760300 - 0T178499 | 26-41365A 3 | |
BEL | 0P086824 - 0P325499 | |||
8 (4-Stroke) | JPN | 0R042475 & up | ||
BEL | 0P325500 & up | |||
9.8 | (9.8, 110) | USA | 4839254 - 0A197111 | 26-77066A 1 |
AUS | 8050625 & up | |||
BEL | 9165303 - 9461525 | |||
CAN | 7111348 & up | |||
9.9 | USA | 0A197112 & up | 26-41365A 3 | |
BEL | 9461526 & up | |||
9.9 (4-Stroke) | USA | 0H000058 - 0H017349 | 26-41365A 3 | |
9.9 (4-Stroke) | (Standard gearcase) | USA | 0G760300 - 0T979999 | 26-41365A 3 |
9.9 (4-Stroke) | (Bigfoot gearcase) | USA | 0G760300 - 0T979999 | 26-85090A 2 |
BEL | 0P075166 - 0P325499 | |||
9.9 (4-Stroke) | (Standard gearcase) | JPN | 0R042475 & up | |
BEL | 0P325500 & up | |||
9.9 (4-Stroke) | (Bigfoot gearcase) | JPN | 0R042475 & up | |
BEL | 0P325500 & up | |||
10 | (XR 10 / Sea Pro 10) | USA | 0D038000 & up | 26-41365A 3 |
BEL | 9596000 & up | |||
10 | Magnum / Marathon | USA | 0D038000 & up | 26-41365A 3 |
BEL | 9596000 & up | |||
15 | (15, 15 Sea Pro / Marathon) | USA | 0B292414 & up | 26-41365A 3 |
BEL | 9542620 & up | |||
15 | (15XD Sea Pro / Marathon) | BEL | 9927000 & up | 26-85090A 2 |
15 | Super 15 | USA | 0B238464 & up | 26-85090A 2 |
BEL | 9507381 & up | |||
CAN | 0A730007 & up | |||
15 (4-Stroke) | (Standard gearcase) 323 cc | USA | 0G590000 & up | 26-41365A 3 |
BEL | 0P075166 & up | |||
15 (4-Stroke) | (Bigfoot gearcase) 323 cc | USA | 0G590000 & up | 26-85090A 2 |
BEL | 0P075166 & up | |||
15 (4-Stroke) | 351 cc | JPN | 0R235949 & up | |
18 | USA | 5837437 - 6443972 | Obsolete | |
8071973 & up | ||||
BEL | 9308306 - 9415100 | |||
CAN | 7173723 - 7209532 | |||
18 | (18XD) | USA | 6443973 & up | 26-85090A 2 |
BEL | 9378151 & up | |||
CAN | 7209533 & up | |||
20 | (20, 200) | USA | 4709593 - 6443972 | 26-66303A 1 |
AUS | 8045199 & up | |||
BEL | 9157230 - 9415100 | |||
CAN | 7098523 - 7209532 | |||
20 | (20, 20XD) | USA | 6443973 - 0T800749 | 26-85090A 2 |
BEL | 9415101 & up | |||
CAN | 7209533 & up | |||
20 (4-Stroke) | JPN | 0R235168 & up | ||
25 | USA | 5705532 - 6443972 | Obsolete | |
8073158 & up | ||||
BEL | 9315316 - 9415100 | |||
CAN | 7166928 - 7209532 | |||
25 (25, 25XD) | (25, 25XD) | USA | 6416713 & up | 26-85090A 2 |
BEL | 9378116 & up | |||
CAN | 7207858 & up | |||
25 | 3-Cylinder Lightning | USA | 0E268781 & up | 26-85090A 2 |
25 (4-Stroke) | USA | 0G590000 - 0T408999 | ||
BEL | 9973100 - 0P153499 | |||
25 (4-Stroke) | Carb models | USA | 0T409000 - 1B226999 | |
BEL | 0P153500 - 0P400999 | |||
25 (4-Stroke) | EFI models | JPN | 0R106999 & up | |
BEL | 0P401000 & up | |||
30 | 2-Cylinder | USA | 0G053314 - 0T800759 | |
BEL | 9854537 - 0P267999 | |||
30 | 430 cc Lightning | USA | 0G575500 & up | |
30 (4-Stroke) | 3-Cylinder (Standard gearcase) | USA | 0G760300 - 0T408999 | |
BEL | 0P094500 - 0P153499 | |||
30 (4-Stroke) | 3-Cylinder (Standard gearcase) | USA | 0T409000 - 1B226999 | |
BEL | 0P153500 - 0P400999 | |||
30 (4-Stroke) | 3-Cylinder (Bigfoot gearcase) | USA | 0G760300 - 0T408999 | 26-43035A 4 |
BEL | 0P094500 - 0P153499 | |||
30 (4-Stroke) | 3-Cylinder (Bigfoot gearcase) | USA | 0T409000 - 1B226999 | |
BEL | 0P153500 - 0P400999 | |||
30 (4-Stroke) | EFI models | JPN | 0R106999 & up | |
BEL | 0P401000 & up | |||
35 | 2-Cylinder | USA | 6445653 & up | 26-79831A 1 |
BEL | 9384476 & up | |||
CAN | 7209608 & up | |||
40 | 2-Cylinder | USA | 4860103 - 6445652 | 26-79831A 1 |
AUS | 8052125 & up | |||
BEL | 9184451 - 9415100 | |||
CAN | 7112423 - 7209608 | |||
40 | 2-Cylinder | USA | 0G053314 - 0T800749 | |
BEL | 9854537 - 0P267999 | |||
40 | 3-Cylinder | USA | 0G531301 & up | |
BEL | 9973100 & up | |||
40 | 4-Cylinder | USA | 0C159200 - 0G589999 | 26-79831A 1 |
BEL | 9570790 - 9973099 | |||
40 (4-Stroke) | 3-Cylinder (Standard gearcase) | USA | 0G760300 - 0T408999 | |
BEL | 0P094500 - 0P153499 | |||
40 (4-Stroke) | 3-Cylinder (Standard gearcase) | USA | 0T409000 - 1B226999 | |
BEL | 0P153500 - 0P400999 | |||
40 (4-Stroke) | 3-Cylinder (Bigfoot gearcase) | USA | 0G760300 - 0T408999 | 26-43035A 4 |
BEL | 0P094500 - 0P153499 | |||
40 (4-Stroke) | 3-Cylinder (Short shaft) | USA | 1B227000 - 1B344398 | |
BEL | 0P153500 - 0P515896 | |||
CHN | 1C000001 - 1C049738 | |||
40 (4-Stroke) | 3-Cylinder (Long shaft) | CHN | 1C000001 - 1C049738 | 26-814669A 2 |
BEL | 0P401000 - 0P515896 | |||
40 (4-Stroke) | 3-Cylinder | CHN | 1C049739 & up | 26-814669A 2 |
40 (4-Stroke) | 4-Cylinder Carb (Standard gearcase) Vertical shift | USA | 0G231123 - 0T598999 | |
BEL | 9944807 - 0P106999 | |||
40 (4-Stroke) | 4-Cylinder Carb (Standard gearcase) Rotary shift | USA | 0T178500 - 0T598999 | 26-814669A 2 |
BEL | 0P094500 - 0P206999 | |||
40 (4-Stroke) | 4-Cylinder Carb (Bigfoot gearcase) | USA | 0G231123 - 0T598999 | 26-43035A 4 |
BEL | 9944807 - 0P206999 | |||
40 (4-Stroke) | 4-Cylinder EFI (Standard gearcase) | USA | 0T409000 - 1B344306 | 26-814669A 2 |
BEL | 0P153500 & up | |||
CHN | 1C000001 & up | |||
40 (4-Stroke) | 4-Cylinder EFI (Bigfoot gearcase) | USA | 0T409000 - 1B344306 | |
BEL | 0P153500 & up | |||
CHN | 1C000001 - 1C033810 | |||
40 (4-Stroke) | 4-Cylinder EFI (Bigfoot gearcase) | CHN | 1C033811 - 1C050251 | 26-43035A 4 |
40 (4-Stroke) | 4-Cylinder EFI (Bigfoot gearcase) | CHN | 1C050252 & up | |
45 | 4-Cylinder | USA | 5531630 & up | 26-79831A 1 |
AUS | 8063985 & up | |||
BEL | 9248006 & up | |||
CAN | 7143688 & up | |||
45 (4-Stroke) | 4-Cylinder (Standard gearcase) | USA | 0G231123 - 0T178499 | |
BEL | 9944807 - 0P094499 | |||
45 (4-Stroke) | 4-Cylinder (Bigfoot gearcase) | USA | 0G231123 - 0T178499 | 26-43035A 4 |
BEL | 9944807 - 0P094499 | |||
50 | 4-Cylinder | USA | 4357640 & up | 26-79831A 1 |
CAN | 7068998 & up | |||
AUS | 8030090 & up | |||
BEL | 9107214 & up | |||
50 | 3-Cylinder | USA | 6428681 - 0D000749 | 26-79831A 1 |
BEL | 9385911 - 9683054 | |||
CAN | 7208333 & up | |||
50 | 3-Cylinder | USA | 0D000750 - 0G589999 | 26-814669A 2 |
BEL | 9683055 - 9973099 | |||
50 | 3-Cylinder | USA | 0G590000 & up | |
BEL | 9973100 & up | |||
50 (4-Stroke) | 4-Cylinder Carb (Standard gearcase) | USA | 0G231123 - 0T178499 | |
BEL | 9944807 - 0P016999 | |||
50 (4-Stroke) | 4-Cylinder Carb (Standard gearcase) | USA | 0T178500 - 0T598999 | 26-814669A 2 |
BEL | 0P094500 - 0P206999 | |||
50 (4-Stroke) | 4-Cylinder Carb (Bigfoot gearcase) | USA | 0G231123 - 0T598999 | 26-43035A 4 |
BEL | 9944807 - 0P206999 | |||
50 (4-Stroke) | 4-Cylinder EFI (Standard gearcase) | USA | 0T409000 - 1B344306 | 26-814669A 2 |
BEL | 0P153500 & up | |||
CHN | 1C000001 & up | |||
50 (4-Stroke) | 4-Cylinder EFI (Bigfoot gearcase) | USA | 0T409000 - 1B344306 | |
BEL | 0P153500 - 0P400999 | |||
BEL | 0P515897 & up | |||
CHN | 1C000001 - 1C033810 | |||
CHN | 1C050252 & up | |||
50 (4-Stroke) | 4-Cylinder EFI (Bigfoot gearcase) | CHN | 1C033811 - 1C050251 | 26-43035A 4 |
55 | 3-Cylinder | USA | 0D000750 & up | 26-814669A 2 |
BEL | 9683055 & up | |||
60 | 3-Cylinder | USA | 6428681 - 0D000749 | 26-79831A 1 |
BEL | 9385911 - 9683054 | |||
CAN | 7208333 & up | |||
60 | 3-Cylinder (Standard gearcase) | USA | 0D000750 & up | 26-814669A 2 |
BEL | 9683055 & up | |||
60 | 3-Cylinder (Bigfoot gearcase) | USA | 0D000750 & up | 26-43035A 4 |
BEL | 9683055 & up | |||
60 (4-Stroke) | 4-Cylinder Carb (Standard gearcase) | USA | 0T178500 - 0T598999 | 26-814669A 2 |
BEL | 0P094500 - 0P206999 | |||
60 (4-Stroke) | 4-Cylinder Carb (Bigfoot gearcase) | USA | 0T178500 - 0T598999 | 26-43035A 4 |
BEL | 0P094500 - 0P206999 | |||
60 (4-Stroke) | 4-Cylinder EFI (Standard gearcase) | USA | 0T409000 - 1B344306 | 26-814669A 2 |
BEL | 0P153500 & up | |||
CHN | 1C000001 & up | |||
60 (4-Stroke) | 4-Cylinder EFI (Bigfoot gearcase) | USA | 0T409000 - 1B344306 | |
BEL | 0P153500 - 0P400999 | |||
BEL | 0P515897 & up | |||
CHN | 1C000001 - 1C033810 | |||
CHN | 1C050252 & up | |||
60 (4-Stroke) | 4-Cylinder EFI (Bigfoot gearcase) | CHN | 1C033811 - 1C050251 | 26-43035A 4 |
70 | 3-Cylinder | USA | 4571652 - 0A996141 | 26-79831A 1 |
AUS | 8042350 & up | |||
BEL | 9135825 - 9385910 | |||
CAN | 7087823 - 7208332 | |||
70 | 3-Cylinder | USA | 0A996142 & up | 26-43035A 4 |
BEL | 9483121 & up | |||
75 | 3-Cylinder | USA | 0C222000 & up | 26-43035A 4 |
BEL | 9589039 & up | |||
75 Optimax | 3-Cylinder | USA | 0T980000 & up | 26-43035A 4 |
75 | 4-Cylinder | USA | 6432901 - 0B122929 | 26-55682A 1 |
BEL | 9393856 - 9469199 | |||
CAN | 7208573 - 0A721307 | |||
75 (4-Stroke) | USA | 0G960500 - 1B366822 | 26-43035A 4 | |
BEL | 0P094500 - 1B366822 | |||
80 | 4-Cylinder | USA | 4831999 - 6432900 | 26-55682A 1 |
AUS | 8050200 & up | |||
BEL | 9177626 - 9393855 | |||
CAN | 7110998 - 7208572 | |||
80 | 3-Cylinder | USA | 0A996142 - 0C221999 | 26-43035A 4 |
BEL | 9483121 - 9589038 | |||
90 | 6-Cylinder | USA | 4845301 - 0A996141 | 26-55682A 1 |
CAN | 7111698 & up | |||
AUS | 8060545 & up | |||
90 | 3-Cylinder | USA | 0A996142 & up | 26-43035A 4 |
BEL | 9483121 & up | |||
90 Optimax | 3-Cylinder | USA | 0T980000 & up | 26-43035A 4 |
90 (4-Stroke) | USA | 0G960500 - 1B366822 | 26-43035A 4 | |
BEL | 0P094500 - 1B366822 | |||
100 | 4-Cylinder | USA | 0B209468 - 0G960499 | 26-43035A 4 |
BEL | 9523034 - 0P058999 | |||
115 | 6-Cylinder | USA | 4855153 & up | 26-55682A 1 |
AUS | 8051950 & up | |||
CAN | 7112248 & up | |||
115 | 4-Cylinder | USA | 0C100000 & up | 26-43035A 4 |
BEL | 9559771 & up | |||
115 Optimax | 3-Cylinder | USA | 0T801000 & up | 26-43035A 4 |
115 | EFI | USA | 0T178500 - 1B366822 | 26-43035A 4 |
(4-Stroke) | ||||
125 | 4-Cylinder | USA | 0D283222 & up | 26-43035A 4 |
BEL | 9793577 & up | |||
140 | 6-Cylinder (140, 1400) | USA | 4865678 & up | 26-55682A 1 |
AUS | 8052650 & up | |||
CAN | 7112773 & up | |||
V-135 | USA | 0A904646 - 0C239552 | 26-89238A 2 | |
V-135 | USA | 0C239553 & up | 26-89238A 2 | |
V-135 Optimax DFI | USA | 0G590000 & up | 26-89238A 2 | |
135 Verado | USA | 1B227000 & up | 26-830749A01 | |
V-150 | (150, 1500) | USA | 4868998 - 0A904645 | 26-55682A 1 |
V-150 | Carb | USA | 0A904646 & up | 26-89238A 2 |
V-150 | (XR4 / Magnum II) | USA | 0B242885 - 0C239552 | 26-89238A 2 |
V-150 | (XR4) | USA | 0C239553 - 0D081999 | 26-89238A 2 |
V-150 | (XR6 / Magnum III) | USA | 0D082000 & up | 26-89238A 2 |
V-150 | EFI | USA | 0D082000 & up | 26-89238A 2 |
V-150 Optimax DFI | USA | 0G590000 & up | 26-89238A 2 | |
150 Verado | USA | 1B227000 & up | 26-830749A01 | |
V-175 | (175, 1750) | USA | 4301235 - 6618750 | 26-55682A 1 |
V-175 | (175, 1750) | AUS | 8058870 & up | 26-55682A 1 |
V-175 | Carb, EFI | USA | 6618751 & up | 26-89238A 2 |
V-175 Optimax DFI | USA | 0T178500 & up | 26-89238A 2 | |
175 Verado | USA | 1B227000 & up | 26-830749A01 | |
V-200 | (200, 2000) | USA | 4839034 - 6625220 | 26-55682A 1 |
V-200 | (200, 2000) | AUS | 8061595 & up | 26-55682A 1 |
V-200 | (2.5L) Carb, EFI | USA | 6625221 & up | 26-89238A 2 |
V-200 | (3.0L) EFI | USA | 0T801000 & up | 26-816575A 4 |
V-200 Optimax | (3.0L) DFI (C-2 casting) | USA | 0G386496 - 0G437999 | 26-816575A 5 |
V-200 Optimax | (3.0L) DFI (C-3 casting) | USA | 0G386496 - 0G437999 | 26-816575A 4 |
V-200 Optimax (3.0L) DFI | USA | 0G438000 - 1B504988 | 26-816575A 4 | |
200 Verado | 4- & 6-Cylinder | USA | 0T980000 & up | 26-830749A01 |
V-220 | USA | 0B117316 - 0C100860 | 26-89238A 2 | |
V-225 | USA | 5628028 - 6042945 | 26-55682A 1 | |
V-225 | (3.0L) (C-2 casting) | USA | 0D280813 - 0G437999 | 26-816575A 5 |
V-225 | (3.0L) (C-3 casting) | USA | 0D280813 - 0G437999 | 26-816575A 4 |
V-225 | (3.0L) | USA | 0G438000 & up | 26-816575A 4 |
V-225 | (3.0L) EFI (C-2 casting) | USA | 0G129222 - 0G437999 | 26-816575A 5 |
V-225 | (3.0L) EFI (C-3 casting) | USA | 0G129222 - 0G437999 | 26-816575A 4 |
V-225 | (3.0L) EFI | USA | 0G438000 - 1B504988 | 26-816575A 4 |
V-225 Optimax (3.0L) DFI | USA | 0G590000 - 1B504988 | 26-816575A 4 | |
V-225 (4-Stroke) | USA | 0T653945 - 0T800999 | ||
V-225 (4-Stroke) | USA | 0T801000 & up | ||
225 Verado | USA | 0T980000 & up | 26-830749A01 | |
V-250 | (3.0L) EFI (C-2 casting) | USA | 0G129222 - 0G437999 | 26-816575A 5 |
V-250 | (3.0L) EFI (C-3 casting) | USA | 0G129222 - 0G437999 | 26-816575A 4 |
V-250 | (3.0L) EFI | USA | 0G438000 - 1B504988 | 26-816575A 4 |
250 Verado | USA | 0T980000 & up | 26-830749A01 | |
275 Verado | USA | 0T980000 & up | 26-830749A01 | |
300 Verado | USA | 1B517434 & up | 26-830749A01 |