Replacement O-Rings for OMC/Cobra Sterndrives
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SIERRAReplacement O-Rings for OMC/Cobra Sterndrives

Prices from $1.79 - To $16.99

$4.29

Fulfilled from vendor
Model # 10518967 | Mfg # 18-7104-9UPC # 808282165055
SIERRA
18-7104 O-Ring, 5-Pack

$4.29

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Specs

Product Overview

Sierra Marine engine parts are designed to meet or exceed the OEM part they are intended to replace and they are backed by the SeaStar Solutions Two-Year Warranty—one of the best in the business.

We offer a variety of O-rings, oil seals and seal kits for most engine applications on the water today—including MerCruiser, OMC, Johnson/Evinrude, Volvo and more.

How to find the O-ring you need

Many of the O-rings we offer fit multiple applications. Notice in the list below that in addition to Johnson/Evinrude and OMC applications, there are a variety of other engine applications for the O-rings offered here. O-rings can also be selected by inside diameter and width, which also appear in the table.

The Sierra Engine Parts Selector

If you do not see the O-ring (or other engine part) you need, please visit the Sierra Engine Parts Selector, where you can search by engine make, model, serial number or year of manufacture.

Sierra #ManufacturerOEM Part #I.D.WidthQty.Model
18-7101- 9GLM801000.250"0.065"510518934
18-7101- 9Johnson/Evinrude Outboard3057390.250"0.065"510518934
18-7101- 9OMC Stern Drive3057390.250"0.065"510518934
18-7139- 9GLM832001.080"0.210"510519064
18-7139- 9Johnson/Evinrude Outboard3190851.080"0.210"510519064
18-7139- 9Mallory9-436221.080"0.210"510519064
18 -7428-9OMC Stern Drive307103N/AN/A210518892
18-7428- 9Johnson/Evinrude Outboard307103N/AN/A210518892
18-7481- 9GLM86570N/AN/A210518926
18-7481- 9Johnson/Evinrude Outboard324981N/AN/A210518926
18-7481- 9Mallory9-43632N/AN/A210518926
18-7416- 9Johnson/Evinrude Outboard3293800.612"0.103"510519601
18-7416- 9GLM811400.612"0.103"510519601
18-7404- 9Johnson/Evinrude Outboard9097470.300"0.100"510519510
18-7404- 9GLM810900.300"0.100"510519510
18-7404- 9Mallory9-766540.300"0.100"510519510
18 -7404-9OMC Stern Drive9097470.300"0.100"510519510
18-7138- 9GLM832501.500"0.210"510519056
18-7138- 9Mallory9-765331.500"0.210"510519056
18 -7138-9OMC Stern Drive3187171.500"0.210"510519056
18-7409- 9GLM812301.175"0.100"510519551
18-7409- 9OMC Stern Drive9118711.175"0.100"510519551
18-7129- 9GLM802200.970"0.065"510519023
18-7129- 9Johnson/Evinrude Outboard3144910.970"0.065"510519023
18-7129- 9OMC Stern Drive3144910.970"0.065"510519023
18-7108- 9GLM814502.550"0.100"510518991
18-7108- 9Johnson/Evinrude Outboard3138932.550"0.100"510518991
18-7108- 9Mallory9-765222.550"0.100"510518991
18 -7108-9OMC Stern Drive3138932.550"0.100"510518991
18-7137- 9GLM452000.320"0.155"510519049
18-7137- 9Johnson/Evinrude Outboard3183720.320"0.155"510519049
18-7137- 9Mallory9-765310.320"0.155"510519049
18 -7137-9OMC Stern Drive3183720.320"0.155"510519049
18-7401- 9GLM814402.485"0.100"510519494
18-7401- 9Mallory9-766522.485"0.100"510519494
18 -7401-9OMC Stern Drive9083832.485"0.100"510519494
18-7403- 9GLM812801.500"0.100"510519502
18-7403- 9Mallory9-765671.500"0.100"510519502
18 -7403-9OMC Stern Drive9093161.500"0.100"510519502
18-7417- 9GLM811000.362"0.103"510519619
18-7417- 9Johnson/Evinrude Outboard3293810.362"0.103"510519619
18-7418- 9GLM824604.484"0.139"510519627
18-7418- 9Johnson/Evinrude Outboard3267414.484"0.139"510519627
18-7477- 9GLM411200.480"0.100"510519684
18-7477- 9OMC Stern Drive9090480.480"0.100"510519684
18-7142- 9Mallory9-765363.940"0.135"510519098
18 -7142-9OMC Stern Drive3221193.940"0.135"510519098
18- 7112GLM821701.170"0.135"510517878
18- 7112Johnson/Evinrude Outboard3024931.170"0.135"510517878
18- 7112OMC Stern Drive3024931.170"0.135"510517878
18- 7461GLM812901.612"0.103"510518694
18- 7461Johnson/Evinrude Outboard3084581.612"0.103"510518694
18- 7461OMC Stern Drive3084581.612"0.103"510518694
18- 7123GLM814002.235"0.100"510517977
18- 7123Johnson/Evinrude Outboard3088762.235"0.100"510517977
18- 7123OMC Stern Drive3088762.235"0.100"510517977
18- 7126GLM813101.690"0.100"510518009
18- 7126Johnson/Evinrude Outboard3133401.690"0.100"510518009
18- 7126OMC Stern Drive3133401.690"0.100"510518009
18- 7128GLM813401.835"0.100"510518025
18- 7128Johnson/Evinrude Outboard3137541.835"0.100"510518025
18- 7128Mallory9- 765321.835"0.100"510518025
18-7128OMC Stern Drive3137541.835"0.100"510518025
18- 7130GLM813802.125"0.100"510518041
18- 7130Johnson/Evinrude Outboard3147282.125"0.100"510518041
18- 7130Mallory9- 765282.125"0.100"510518041
18-7130OMC Stern Drive3147282.125"0.100"510518041
18- 7963GLM86660N/AN/A510518827
18- 7963Johnson/Evinrude Outboard331353N/AN/A510518827
18- 7963Mallory9-48217N/AN/A510518827
18- 7963OMC Stern Drive331353N/AN/A510518827
18- 7104-9GLM822802.210"0.135"510518967
18- 7104-9Johnson/Evinrude Outboard3086272.210"0.135"510518967
18-7104- 9Mallory9-765212.210"0.135"510518967

Advice

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