4th of JULY SALE - Save an Extra 10-50% Off!
Fantastic Savings Everywhere!

O-Ring - 18-7172-9 - Sierra

Sierra
Blowout
Save 36% Off.
O-Ring - 18-7172-9 - Sierra
Meltdown Sale Price: $11.53
Save: $6.67
(36% Off $18.20)
Part # 18-7172-9 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 19 hrs 32 mins.
No Reviews | Write Review | Ask Question
This item is found in the following Product Families
Mariner O-Rings
Mariner Upper End Cap Powerhead O-rings
Mercruiser Gimbal Housing O Rings
OMC Sterndrive/Cobra Lower Unit O Rings
Dimensions ( in )
I.D. 3.250
Width .135

Replaces OEM part #
  • OMC 553126
  • MERCURY MARINE 25-31305
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? iboats.com has teamed with a national network of independent installers that are ready to handle your installation needs.
Find your local Amtech dealer:
Gear up for Summer Boating.
Extra 10-50% Savings during the 4th of July Sale!