This product has been discontinued.
Sierra
O-Ring - 18-7111 - Sierra
Price: $1.95
Discontinued
Save: $0.34
(14% Off $2.29)
Part # 18-7111
(Discontinued)
Dimension ( in )
I.D. .197
Width: .113

Replaces OEM part #
  • OMC 301824
Average Customer Review for O-Ring - 18-7111 - Sierra
Full StarFull StarFull StarFull StarFull Star
Based On 5 Reviews | Write Review
Full StarFull StarFull StarFull StarFull Star
O rings for 5 1/2 Johnson fuel connector
by Jerry from Marshall, Texas on June 26, 2016
Sierra part number 18-7111 will not fit the 1955 5 1/2 Johnson CD 12. The outside diameter is approximately .030 too large to fit into the connector. It is my understanding that the original OMC O ring was slightly smaller and they can possibly be found in some old strock. I am not complaining, I promptly received what I ordered. Just wanted to let you know that if someone orders this Sierra part number for a vintage Johnson 5 1/2 motor it will not fit. Jerry
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
O ring fit
by Todd from Neoga, Illinois on May 10, 2014
Fit perfect, solved the problem. Would recommend these.
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
No more leaks! Perfect!
by T J from Fort Gratiot, Michigan on October 23, 2012
The exact part needed to solve fuel connection leak for the old outboard pressure style gas tanks. Special o-ring that you can't just get anywhere. Iboats had them, and got them to me quickly with very reasonable shipping. Thanks Iboats!
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
18-7111 O-Ring
by Jeff from Watertown, South Dakota on August 20, 2012
Perfect fit. Resolved my fuel leak.
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
Fast!
by Richard from Westland, Michigan on July 20, 2012
And a good product too.
Was this review helpful?
Q:
Does the Sierra part number #18-7111 come in a package of more than one o ring?
A:
That o ring is only available as a single unit. There are no packages with more than 1 of that o-ring.


Ask a question
Question & Answer Guidelines
This product ships in 1 business day.
Add to Cart and enter your Postal Code to determine the shipping charges.
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