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HP/Cyl:
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HP/Cyl

Year

O-Ring Application

O.E. #

Sierra O-Ring

Mallory O-Ring

Inner Diameter- Inches

Width- Inches

QTY Needed

4 hp 1969-1990 Fuel Connector 301824 18-7111 (2)-0.197 0.113 1
5-300 hp (1)1957-1990 Fuel Connector 301824 18-7111 (2)-0.197 0.113 2
20 1984-1986 Electric Fuel Primer Manual Valve 305739 18-7101 (5)9-76519 0.25 0.065 1
25 1984-1986 Electric Fuel Primer Manual Valve 305739 18-7101 (5)9-76519 0.25 0.065 1
30 1984-1986 Electric Fuel Primer Manual Valve 305739 18-7101 (5)9-76519 0.25 0.065 1
35 1984-1986 Electric Fuel Primer Manual Valve 305739 18-7101 (5)9-76519 0.25 0.065 1
40 1984-1986 Electric Fuel Primer Manual Valve 305739 18-7101 (5)9-76519 0.25 0.065 1
45 (1)1986-1987 Electric Fuel Primer Manual Valve 305739 18-7101 (5)9-76519 0.25 0.065 1
50 1985-1986 Electric Fuel Primer Manual Valve 305739 18-7101 (5)9-76519 0.25 0.065 1
55 (1)1986-1988 Electric Fuel Primer Manual Valve 305739 18-7101 (5)9-76519 0.25 0.065 1
60 (1)1985-1986 Electric Fuel Primer Manual Valve 305739 18-7101 (5)9-76519 0.25 0.065 1
65 (1)1985-1986 Electric Fuel Primer Manual Valve 305739 18-7101 (5)9-76519 0.25 0.065 1
70 (1)1985-1986 Electric Fuel Primer Manual Valve 305739 18-7101 (5)9-76519 0.25 0.065 1
75 1983-1986 Electric Fuel Primer Manual Valve 305739 18-7101 (5)9-76519 0.25 0.065 1
200 1986-1988 Electric Primer Pump 302588 18-7115 (2)-1.735 0.135 1
225 1986-1988 Electric Primer Pump 302588 18-7115 (2)-1.735 0.135 1
V-4 (1)1980-1986 Electric Fuel Primer Manual Valve 305739 18-7101 (5)9-76519 0.25 0.065 1
V-6 (1)1980-1986 Electric Fuel Primer Manual Valve 305739 18-7101 (5)9-76519 0.25 0.065 1
V-8 1985-1986 Electric Primer Pump 302588 18-7115 (2)-1.735 0.135 1

HP/Cyl

Year

O-Ring Application

O.E. #

Sierra O-Ring

Mallory O-Ring

Inner Diameter- Inches

Width- Inches

QTY Needed

Notes:
  • (1) : Commercial Models Also
  • (2) : PKG. OF 1
  • (5) : PKG. OF 5
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Price: $4.57
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Part # 18-7101-9
2nd Day Air for $2 More Eligible
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Price: $1.94
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Part # 18-7111
2nd Day Air for $2 More Eligible
SHIPS TODAY!* if ordered in 4 hrs 12 mins.
Price: $2.11
Save: $0.38
(15% Off $2.49)
Part # 18-7115
2nd Day Air for $2 More Eligible
SHIPS TODAY!* if ordered in 4 hrs 12 mins.
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Sierra
Average Customer Review for O-Ring - 18-7111 - Sierra
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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
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O ring fit
by Todd from Neoga, Illinois on May 10, 2014
Fit perfect, solved the problem. Would recommend these.
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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!
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18-7111 O-Ring
by Jeff from Watertown, South Dakota on August 20, 2012
Perfect fit. Resolved my fuel leak.
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Fast!
by Richard from Westland, Michigan on July 20, 2012
And a good product too.
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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.


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