SIERRA–18-7170 Replacement O-Rings, 5-Pack
18-7170 Replacement O-Rings, 5-Pack
Johnson/Evinrude (OMC/BRP/Cobra) 307239
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|
|18-7170-9||Mercruiser Stern Drive||25-33504||1.365"||0.135"||5||10519270|
|18-7170-9||OMC Stern Drive||307239, 3852071||1.365"||0.135"||5||10519270|
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