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Used Outboard Parts & Fresh Water Sterndrive Parts

18-7133 O-RING (1) for JOHNSON/EVINRUDE/BRP/OMC COBRA 305123 Crankcase Head
18-7133 O-RING (1) for JOHNSON/EVINRUDE/BRP/OMC COBRA 305123 Crankcase Head18-7133 O-RING (1) for JOHNSON/EVINRUDE/BRP/OMC COBRA 305123 Crankcase Head18-7133 O-RING (1) for JOHNSON/EVINRUDE/BRP/OMC COBRA 305123 Crankcase Head18-7133 O-RING (1) for JOHNSON/EVINRUDE/BRP/OMC COBRA 305123 Crankcase Head
$5.84
Part number 18-7133.

Sierra o-ring for Johnson, Evinrude and BRP outboards and OMC Sterndrive and Cobra engines.

Replaces OEM OMC 305123.

3.780 ID, .135 Width.

Please check the part numbers for your fitment needs. If you are unsure whether this part fits your model, please contact us with your serial number and we can help determine if it is right for your engine. Thanks for looking!!!

Green Bay Prop offers the most used Stern Drive & Outboard parts in Wisconsin!

cat-211

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