Outboard & Sterndrive O-Rings
Model #
10517902
Mfg #
18-7116
$0.99
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18-7116 Outboard O-Ring
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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 Mercury Marine 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 # | Application | Replaces OEM Part # | I.D. | Width | Qty. | Model |
|---|---|---|---|---|---|---|
| 18-7102-9 | GLM | 80130 | 0.430" | 0.065" | 5 | 10518942 |
| 18-7102- 9 | Johnson/Evinrude OB | 307450 | 0.430" | 0.065" | 5 | 10518942 |
| 18-7102- 9 | Mallory | 9- 765220 | 0.430" | 0.065" | 5 | 10518942 |
| 18-7102-9 | Mercruiser Stern Drive | 25-62706 | 0.430" | 0.065" | 5 | 10518942 |
| 18- 7102-9 | Mercury Marine | 25- 62706 | 0.430" | 0.065" | 5 | 10518942 |
| 18-7102-9 | OMC Stern Drive | 307450 | 0.430" | 0.065" | 5 | 10518942 |
| 18-7102- 9 | Volvo Penta | 3852073 | 0.430" | 0.065" | 5 | 10518942 |
| 18-7188- 9 | Mallory | 9- 76559 | 0.361" | 0.064" | 5 | 10519437 |
| 18-7188-9 | Mercruiser Stern Drive | 25-805726 | 0.361" | 0.064" | 5 | 10519437 |
| 18- 7188-9 | Mercury Marine | 25- 805726 | 0.361" | 0.064" | 5 | 10519437 |
| 18-7188-9 | Mercury Sport Jet | 25-805726 | 0.361" | 0.064" | 5 | 10519437 |
| 18-7188 -9 | Volvo Penta | 955983 | 0.361" | 0.064" | 5 | 10519437 |
| 18-7180-9 | GLM | 45030 | 0.445" | 0.090" | 5 | 10519361 |
| 18-7180- 9 | Johnson/Evinrude OB | 303347 | 0.445" | 0.090" | 5 | 10519361 |
| 18-7180- 9 | Mallory | 9- 76556 | 0.445" | 0.090" | 5 | 10519361 |
| 18-7180-9 | Mercruiser Stern Drive | 12-31060 | 0.445" | 0.090" | 5 | 10519361 |
| 18- 7180-9 | Mercury Marine | 25- 26802 | 0.445" | 0.090" | 5 | 10519361 |
| 18-7180-9 | Volvo Penta | 925055 | 0.445" | 0.090" | 5 | 10519361 |
| 18-7116 | GLM | 81100 | 0.360" | 0.100" | 1 | 10517902 |
| 18- 7116 | Johnson/Evinrude OB | 303067 | 0.360" | 0.100" | 1 | 10517902 |
| 18- 7116 | Mallory | 9- 43631 | 0.360" | 0.100" | 1 | 10517902 |
| 18-7116 | Mercruiser Stern Drive | 802206 | 0.360" | 0.100" | 1 | 10517902 |
| 18- 7116 | Mercury Marine | 25- 85148 | 0.360" | 0.100" | 1 | 10517902 |
| 18-7116 | OMC Stern Drive | 303067 | 0.360" | 0.100" | 1 | 10517902 |
| 18-7116 | Volvo Penta | 3852045 | 0.360" | 0.100" | 1 | 10517902 |
| 18- 7135 | GLM | 82100 | 0.750" | 0.135" | 1 | 10518066 |
| 18- 7135 | Johnson/Evinrude OB | 310584 | 0.750" | 0.135" | 1 | 10518066 |
| 18- 7135 | Mallory | 9- 76530 | 0.750" | 0.135" | 1 | 10518066 |
| 18-7135 | Mercruiser Stern Drive | 25-35276 | 0.750" | 0.135" | 1 | 10518066 |
| 18- 7135 | Mercury Marine | 25- 20365 | 0.750" | 0.135" | 1 | 10518066 |
| 18-7135 | OMC Stern Drive | 310584 | 0.750" | 0.135" | 1 | 10518066 |
| 18-7135 | Volvo Penta | 3852089 | 0.750" | 0.135" | 1 | 10518066 |
Compatibility
Johnson/Evinrude (OMC/BRP) 303067
,
Mercury/Mariner 25-62704
,
Mercruiser 25-62704
,
OMC Sterndrive/Cobra 303067
,
Volvo/Penta 3852045
Material
Rubber
Type
O-Rings
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