Johnson Fuel System O-Rings

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HP/Cyl:
Year:

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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HP/Cyl:
Year:
Blowout
Save 2%-37% Off.
Limited Sale Price: $6.33
Save: $3.82
(37% Off $10.15)
Part # 18-7101-9 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 8 hrs 34 mins.
No Reviews  |  Write Review  |  Ask Question
Dimensions ( in )
I.D. .250
Width .065

Replaces OEM part #
  • OMC 305739
Limited Sale Price: $1.94
Part # 18-7111 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 8 hrs 34 mins.
Dimension ( in )
I.D. .197
Width: .113

Replaces OEM part #
  • OMC 301824
Limited Sale Price: $2.11
Save: $0.06
(2% Off $2.17)
Part # 18-7115 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 8 hrs 34 mins.
No Reviews  |  Write Review  |  Ask Question
Dimensions ( in )
I.D. 1.735
Width: .135

Replaces OEM part #
  • OMC 302588
  • MERCURY MARINE 25-26722
Sierra
Average Customer Review for O-Ring - 18-7111 - Sierra
Full StarFull StarFull StarFull StarFull Star Based On 4 Reviews | Write Review
Full StarFull StarFull StarFull StarFull StarO ring fit
by Todd from Neoga, Illinois on May 10, 2014
Fit perfect, solved the problem. Would recommend these.
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Full StarFull StarFull StarFull StarFull StarNo 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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Full StarFull StarFull StarFull StarFull Star18-7111 O-Ring
by Jeff from Watertown, South Dakota on August 20, 2012
Perfect fit. Resolved my fuel leak.
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Full StarFull StarFull StarFull StarFull StarFast!
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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