Prices are melting for cool savings.
Save Now during our BIGGEST Sale of the Year!

O Ring - 18-7103-9 - Sierra

Save 10% Off.
O Ring - 18-7103-9 - Sierra (5 count)
Meltdown Sale Price: $20.93
Save: $2.52
(10% Off $23.45)
Part # 18-7103-9 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 17 hrs 46 mins.
No Reviews | Write Review | Ask Question
This item is found in the following Product Families
Mariner O-Rings
OMC Sterndrive/Cobra Upper Unit O Rings
Evinrude O-Rings
Evinrude O-Rings
Dimensions ( in )
I.D. .920
Width: .100

Replaces OEM part #
  • OMC 308624
  • MERCURY MARINE 25-29845
Will this part work on a Johnson 150 hp, 2003 ? I need 2?
It doesn't look like this is the correct O-ring for your engine. We will need to know the model number to your engine to match up correct part. Contact us at the number at the top of the page with that info and we can take a look.
Ask a question for
Question & Answer Guidelines
This product ships in 1 business day.

Add to Cart and enter your Postal Code to determine the shipping charges and estimated delivery date.
* Most products and orders leave our warehouse in 1 business day. However, select items may take more processing time. Alaska and Hawaii orders please add 1 additional warehouse processing day.
Standard Shipping Policies
Do you need Professional Installation? has teamed with a national network of independent installers that are ready to handle your installation needs.
Find your local Amtech dealer:
Save More Now during the Summer Price Meltdown Sale!