Mariner / Mercury outboard seal kit

All gaskets, oils seals and o-rings are included in our outboard gearcase seal kits.
Exploded view Mercury parts drawings 6 to 250 hp.
Search by part number or description here
Hp. for lower unit applications listed beside each gearcase seal kit - also compatible with Mercury Mariner outboards.
For all other parts, see our Mariner seals and o rings in lower unit help pages.

87574 Kit for Mercury Mariner gearcase seal kit

P/N 87574 OEM / 26-77066A $42.99

4 hp. one cylinder years 1982 -1986
USA. 5595532-OA809600
AUS.8068065 up
BEL.9258281-9477829
CAN.7143688 up

4.5 hp. one cylinder years 1975-1979
USA. 4107220 & up
AUS.8026540 up
BEL.9072179 up
CAN.7045758 up

7.5 hp. (75) year 1978
USA. 4851693 up
AUS.8051350 up
BEL.9181726 up
CAN.7111898 up

9.8 hp. (110) years 1979-1985
USA. 4839254 up
AUS.8050625 up
BEL.9165303 up
CAN.7111348 up

87576 9.9 hp outboard gearcase seal kit 26-41365A3

/ 26-41365A3 Gearcase seal kit is for use with various 6-15 hp. Kit for Mercury Mariner outboards years 1986 to 2006.

P/N 87576 $48.99

6 hp. years 1986-up
USA. OA197112 up
BEL. 9461526 up

8 hp. years 1986-up
USA. OA197112 up
BEL. 9461526 up

Bodensee 4 stroke 1995-1998
USA. 0H00058-0H017349
USA. 0G760300 and up

9.9 hp. years 1986-up
USA. 0A197112 up
BEL. 9461526 up

9.9 hp. 4 stroke year 1999
USA. 0H00058-0H017349

9.9 hp. 4 stroke years 1990-up
USA. 0G760300 up

10 hp. XR10/Sea Pro10 years 1990-up
USA. 0D038000 up
BEL. 9596000 up

10 hp. Magnum / Marathon years 1990-up
USA. 0D038000 up
BEL. 9596000 up

15 hp. 15 Sea Pro/Marathon years 1988-up
USA. 0B292414 up
BEL. 9927000 up

87810

P/N 87810
Lower unit seal kit #26-820645A1
$19.99

Gearcase seal kit for:

18 hp.
USA. 5837437- 6443972
AUS .8071973 up
BEL. 9308306 - 94151
CAN. 7173723 -72095

25 hp.
USA. 5705532- 6443972
AUS. 8073158 up
BEL. 9315316- 9415100
CAN. 7166928-7209532

87808

P/N 87808
Gearcase seal kit for Mercury Mariner #26-85090A2 $69.99

Gearcase seal kit compatible with Mercury mariner outboard models:

15 hp. XD Sea Pro/Marathon years 1997-1998
BEL. 9927000 up
15 hp. Super 15
USA. OB238464 up

18 hp. (18XD) years 1984-1985
USA. 6443973 up
BEL. 9378151 up
CAN. 7209533 up

20 hp. (20, 20XD) years 1987-1987
USA. 6443973 up
BEL. 9415101 up
CAN. 7209533 up

25 hp. (25, 25XD) year 1983 and 1/2 of 1984
USA. 6416713 up
BEL. 9378116 up
CAN. 7207858 up

25 hp. Lightning 3 cylinder year 1997
USA. OE268781 up

87575 lower unit

P/N 87575 Gearcase seal kit OEM 26-85090A1 $81.99

18 hp. years 1980-1983
USA. 5837437- 6443972
AUS .8071973 up
BEL. 9308306 - 9415100
CAN. 7173723 -7209532

25 hp. years 1980-1983
USA. 5705532- 6443972
AUS. 8073158 up
BEL. 9315316- 9415100
CAN. 7166928-7209532

87514

P/N 87514
Gearcase seal kit for Mercury Mariner #82357A2
$61.99

25 hp. 4 Stroke year 1998
USA. OG590000 up

30 hp. 2 cylinder 644cc years 1994-1998
USA. 053314 up

40 hp. 2 cylinder 644cc years 1994-1998
USA. OG053314 up

40 hp. 3 cylinder years 1997-1998
USA. OG531301 up
BEL. 9973100 up

40 hp. 4 Stroke Non Big Foot year 1998
USA. OG231123 up

45 hp. Bodensee 4 Stroke Non Big Foot years 1996-1998
USA. OG231123 up

50 hp. 3 cylinder years 1991-1995
USA. OG590000 up
BEL. 9973100 up

50 hp. 4 Stroke Non Big Foot years 1995-1998
USA. OG231123 up

87530

P/N 87530
Gearcase seal kit 26-79831A1 $68.99

35 hp. 2 cylinder
USA. 6445653 up
BEL. 9384476 up
CAN. 7209608 up

40 hp. (40, 402) 2 cylinder
USA. 4860103-OG053313
AUS. 8052125 up
BEL. 9184451 up
CAN. 7112423 up

40 hp. 4 cylinder
USA OC159200 up
BEL. 9570790 up
USA. 5531630 up
AUS. 8063985 up
BEL. 9248006 up
CAN. 7143688 up

50 hp. 500 4 cylinder
USA. 4357640 up
CAN. 7068998 up
AUS. 8030090 up
BEL. 9107214 up

50 hp. 3 cylinder
USA 6428681-OD000749
BEL. 9385911-9683054
CAN. 7208333 up

60 hp. 3 cylinder
USA. 6428681-OD000749
BEL. 9385911-9683054
CAN. 7208333 up

70 hp. 3 cylinder
USA. 4571652-OA996141
AUS. 8042350 up
BEL. 9135825-9385910
CAN. 7087823-7208332

87590

P/N 87590
Gearcase seal kit 26-43035A4 $59.99

50 hp. 4 Stroke (Big Foot)
USA. OG231123 up

60 hp. 3 cylinder Big Foot
USA. OD000750 up
BEL. 9683055 up

70 hp. 3 cylinder
USA. OA996142 up
BEL. 9483121 up

75 hp. 3 cylinder
USA. OC222000 up
BEL. 9589039 up

80 hp. 3 cylinder
USA. OA996142 up
BEL. 9483121 up

90 hp. 3 cylinder
USA. OA996142 up
BEL. 9483121 up

100 hp. 4 cylinder
USA. OB209468 up
BEL. 9523034 up

115 hp. 4 cylinder
USA. OC100000 up
BEL. 9559771 up

125 hp. 4 cylinder
USA. OD283222 up
BEL. 9793577 up

87520

P/N 87520
Lower unit seal kit 26-55682A1
$86.99

Gearcase seal kit for:

75 hp. 4 cylinder
USA. 6432901 up
BEL. 9393856 up
CAN. 7208573 up

80 hp. 800, 4 cylinder
USA. 4831999 - 6432900
AUS. 8050200 up
BEL. 9177626 - 9393855
CAN. 71109 - 7208572

90 hp. 900, 6 cylinder
USA. 4845301 up
CAN. 7111698 up
AUS. 8060545 up

115 hp. 1150, 6 cylinder
USA. 4855153 up
AUS. 8051950 up
CAN. 711248 up

140 hp. 1400 6 cylinder
USA. 4865678 up
AUS. 8052650 up
CAN. 7112773 up

V-150 hp. 1500
USA. 4868998-OA904645

V-175 hp. 1750
USA. 4301235 - 6618750
AUS. 8058870 up

V-200 hp. 2000
USA. 4839034 - 6625220
AUS. 8061595 up

V-225 hp.
USA. 5628028 up

87540

P/N 87540
Gearcase seal kit 26-89238A2
$57.99

V-135 hp.
USA. OA904646-OC239552

V-135 hp.
USA. OC239553 up

V-135 hp. DFI
USA. OG590000 up

V-150 hp. (carb)
USA. OA904646 up

V-150 hp. XR4/Magnum ll
USA. OB242885-OC239552

V-150 hp. XR4
USA. OC239553-OD081999

V-150 hp. XR6/Magnum lll
USA. OD082000 up

V-150 hp. EFI
USA. OD082000 up

V-150 hp. DFI
USA. OG590000 up

V-175 hp. carb EFI
USA. 6618751 up

V-200 hp. carb EFI
USA. 6625221-6203990

V-220 hp.
USA. OB117316 up

87513

P/N 87513 Lower unit seal kit OEM 26-816575A5 $39.99

Gearcase seal kit compatible with:

V-200 hp. DFI 3.0 liter
USA. OG386496 up

V-225 hp. 3.0 liter with C-2 Casting
USA. OD280813 up

V-225 hp. 3.0 liter Sea Pro Marathon
USA. OG245605 up

V-225 hp. EFI 3.0 liter
USA. OG129222 up

V-225 hp. DFI 3.0 liter
USA. OG590000 up

V-250 hp. EFI 3.0 liter
USA. OG129222 up

87512

P/N 87512
Gearcase seal kit 26-816575A4
$45.99

V225 hp. 3.0 liter with C-3 Casting USA. OD280813 up V-225 hp. 3.0 liter Sea Pro Marathon USA. OG245605 up

87809 Merc. Chrysler Force

P/N 87809 50-55-60 hp. gearcase seal kit OEM 26-814669A2 $51.99

50 hp. 3 cylinder 1991 up 1995
USA 0D000750-0G589999
BEL. 9683055-9973099

55 hp. 3 cylinder 1996
USA 0D000750 and up
BEL, 9741042 and up

60 hp. 3 cylinder standard, non big-foot 1991 up 1995
USA 0D000750 and up
BEL. 9683055 and up

87573 gearcase seal kit 26-66303A1

87573

P/N 87573 20 hp.

P/N 87573 Gearcase seal kit OEM number 26-66303A1 $89.99

20 hp. years 1978 -1981

USA. 4709593-6443972
AUS.8068065 and up
BEL.9157230 to 941510
CAN.708523 to 7209532