OMC Sterndrive/Cobra Exhaust Manifold Elbow Gaskets

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HP/Liter/CID/Model:
Year:

HP/Liter/CID/Model

Year

Sierra Exhaust Elbow Gasket

Mallory Exhaust Elbow Gasket

3.0 Liter 1993 18-2875 -
3.0 HO 1993 18-2875 -
4.3 Liter 1993 18-0943 9-61452
4.3 HO 1993 18-0943 9-61452
5.0 1993 18-0943 9-61452
5.0 HO 1993 18-0943 9-61452
5.0 EFI 1993 18-0943 9-61452
5.0 EFI 1993 18-0943 9-61452
5.8L (Ford) 1995 18-0943 9-61452
5.8L (Ford) 1994 18-0943 9-61452
5.8 EFI 1993 18-0943 9-61452
5.8L (Ford) 1993 18-0943 9-61452
5.8 L 1993 18-0943 9-61452
5.8L (Ford) 1996 18-0943 9-61452
5.8 EFI 1993 18-0943 9-61452
7.4L (GM) 1995 18-0943 9-61452
7.4L (GM) 1996 18-0943 9-61452
7.4L (GM) 1994 18-0943 9-61452
7.4L (GM) 1993 18-0943 9-61452
8.2L (GM) 1993 18-0943 9-61452
351 King 1993 18-0943 9-61452
454 1993 18-0943 9-61452
454 HO 1993 18-0943 9-61452
502 1993 18-0943 9-61452
3.0 Liter 1992 18-2875 -
3.0 HO 1992 18-2875 -
4.3 Liter 1992 18-0943 9-61452
4.3 HO 1992 18-0943 9-61452
5.0 Liter 1992 18-0943 9-61452
5.0 HO 1992 18-0943 9-61452
5.8 Liter 1992 18-0943 9-61452
5.7 Liter 1992 18-0943 9-61452
5.7 LE 1992 18-0943 9-61452
5.8L (Ford) 1992 18-0943 9-61452
7.4L (GM) 1992 18-0943 9-61452
8.2L (GM) 1992 18-0943 9-61452
351 King Cobra 1992 18-0943 9-61452
454 1992 18-0943 9-61452
454 HO 1992 18-0943 9-61452
502 1992 18-0943 9-61452
3.0 Liter 1991 18-2875 -
3.0 HO 1991 18-2875 -
4.3 Liter 1991 18-0943 9-61452
4.3 HO 1991 18-0943 9-61452
5.7 Liter 1991 18-0943 9-61452
5.7 LE 1991 18-0943 9-61452
5.8L (Ford) 1991 18-0943 9-61452
5.0 Liter 1991 18-0943 9-61452
5.0 HO 1991 18-0943 9-61452
5.8 Liter 1991 18-0943 9-61452
454 1991 18-0943 9-61452
454 HO 1991 18-0943 9-61452
7.4L (GM) 1991 18-0943 9-61452
3.0 Liter 1990 18-2875 -
5.0 Liter 1990 18-0943 9-61452
5.0 HO 1990 18-0943 9-61452
5.8 Liter 1990 18-0943 9-61452
5.7 Liter 1990 18-0943 9-61452
5.7 LE 1990 18-0943 9-61452
7.4L (GM) 1990 18-0943 9-61452
7.5L (Ford) 1990 18-0943 9-61452
454 King Cobra 1990 18-0943 9-61452
460 King Cobra 1990 18-0943 9-61452
3.0 Liter 1989 18-2875 -
5.0 Liter 1989 18-0943 9-61452
5.0 HO 1989 18-0943 9-61452
5.8 Liter 1989 18-0943 9-61452
5.7 1989 18-0943 9-61452
350 King Cobra 1989 18-0943 9-61452
460 King Cobra 1989 18-0943 9-61452
3.0 Liter 1988 18-2875 -
5.0 (1)1988 18-0943 9-61452
350 King Cobra (1)1988 18-0943 9-61452
5.0 (2)1988 18-0943 9-61452
350 King Cobra (2)1988 18-0943 9-61452
5.7 (1)1988 18-0943 9-61452
350 King Cobra (1)1988 18-0943 9-61452
5.7 (2)1988 18-0943 9-61452
350 King Cobra (2)1988 18-0943 9-61452
370 King Cobra 1988 18-0943 9-61452
460 King Cobra 1988 18-0943 9-61452
3.0 Liter 1987 18-2875 -
5.0 Liter (1)1987 18-0943 9-61452
5.0 Liter (2)1987 18-0943 9-61452
5.7 Liter (1)1987 18-0943 9-61452
5.7 Liter (2)1987 18-0943 9-61452
460 King Cobra 1987 18-0943 9-61452
460 King Cobra 1987 18-0943 9-61452
2.5 Liter 1986 18-2875 -
3.0 Liter 1986 18-2875 -
5.0 Liter (1)1986 18-0943 9-61452
5.0 Liter (2)1986 18-0943 9-61452
5.7 Liter (1)1986 18-0943 9-61452
5.7 Liter (2)1986 18-0943 9-61452
2.5 Liter 1985 18-2875 -
3.0 Liter 1985 18-2875 -
5.0 Liter (1)1985 18-0943 9-61452
5.0 Liter (2)1985 18-0943 9-61452
5.7 Liter (1)1985 18-0943 9-61452
5.7 Liter (2)1985 18-0943 9-61452
2.5 Liter 1984 18-2875 -
3.0 Liter 1984 18-2875 -
5.0 Liter (1)1984 18-0943 9-61452
5.0 Liter (2)1984 18-0943 9-61452
5.7 Liter (1)1984 18-0943 9-61452
5.7 Liter (2)1984 18-0943 9-61452
2.5 Liter 1983 18-2875 -
3.0 Liter 1983 18-2875 -
5.0 Liter (1)1983 18-0943 9-61452
5.0 Liter (2)1983 18-0943 9-61452
5.7 Liter (1)1983 18-0943 9-61452
5.7 Liter (2)1983 18-0943 9-61452
2.5 Liter 1982 18-2875 -
3.0 Liter 1982 18-2875 -
5.0 Liter (1)1982 18-0943 9-61452
5.0 Liter (2)1982 18-0943 9-61452
5.7 Liter (1)1982 18-0943 9-61452
5.7 Liter (2)1982 18-0943 9-61452
400 Series, 120 1981 18-2861 -
400 Series, 140 1981 18-2875 -
800 Series, 200 (1)1981 18-0943 9-61452
800 Series, 230 (1)1981 18-0943 9-61452
800 Series, 260 (1)1981 18-0943 9-61452
800 Series, 200 (2)1981 18-0943 9-61452
800 Series, 230 (2)1981 18-0943 9-61452
800 Series, 260 (2)1981 18-0943 9-61452
400 Series, 120 1980 18-2861 -
400 Series, 140 1980 18-2875 -
800 Series, 185-260 (1)1980 18-0943 9-61452
800 Series, 185-260 (2)1980 18-0943 9-61452
400 Series, 120 1979 18-2861 -
400 Series, 140 1979 18-2875 -
800 Series, 185-230 (1)1979 18-0943 9-61452
800 Series, 185-230 (2)1979 18-0943 9-61452
800 Series, 250 1979 18-0943 9-61452
800 Series, 260 (1)1979 18-0943 9-61452
800 Series, 260 (2)1979 18-0943 9-61452
400 Series, 120 1978 18-2861 -
400 Series, 140 1978 18-2875 -
800 Series, 185-225 (1)1978 18-0943 9-61452
800 Series, 185-225 (2)1978 18-0943 9-61452
800 Series, 240 1978 18-0943 9-61452
120 1977 18-2861 -
140 1977 18-2875 -
175-235 1977 18-0943 9-61452
120 1976 18-2861 -
140 1976 18-2875 -
165 1976 18-2875 -
175-235 1976 18-2850 -
120 1975 18-2861 -
140 1975 18-2875 -
165 1975 18-2875 -
175-235 1975 18-2850 -
120 1974 18-2861 -
140 1974 18-2875 -
165 1974 18-2875 -
170 1974 18-2850 -
190 1974 18-2850 -
100 1973 18-2861 -
120 1973 18-2861 -
140 1973 18-2875 -
165 1973 18-2875 -
225 1973 18-2883 -
245 1973 18-2883 -
100 1972 18-2861 -
120 1972 18-2861 -
155 1972 18-2883 -
165 S MODEL 1972 18-2875 -
165 C MODEL 1972 18-2875 -
225 1972 18-2883 -
245 1972 18-2883 -
120 1971 18-2861 -
155 1971 18-2859 -
215 1971 18-2859 -
235 1971 18-2859 -
120 1970 18-2861 -
155 1970 18-2859 -
210 1970 18-2859 -
120 1969 18-2861 -
155 1969 18-2859 -
210 1969 18-2859 -
120 1968 18-2861 -
155 1968 18-2859 -
185 1968 18-2859 -
200 1968 18-2859 -
210 1968 18-2859 -
120 1967 18-2861 -
155 1967 18-2859 -
185 1967 18-2859 -
200 1967 18-2859 -
120 1966 18-2861 -
150 1966 18-2859 -
200 1966 18-2859 -
120 1965 18-2861 -
150 1965 18-2859 -
110 1964 18-2859 -
150 1964 18-2859 -

HP/Liter/CID/Model

Year

Sierra Exhaust Elbow Gasket

Mallory Exhaust Elbow Gasket

Notes:
  • (1) : Starboard Mount Exhaust
  • (2) : Port Mount Exhaust
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Year:
Your Price: $8.02
Save: $0.38
(4% Off $8.40)
Part # 18-0104-9 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 9 hrs 4 mins.
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Pkg. of 2

Replaces OEM part #
  • OMC 907764

Sierra part # 18-0104 Exhaust elbow gaskets

These gaskets are made from a non-asbestos fiber blend, created just for hi-temperature environments of 500 degrees Fahrenheit or more. When moisture and other marine elements become an issue, Sierra has provided a dependable gasket compound to provide a quality seal that will help it last much longer.

When you begin to prepare the elbow gasket, be certain to thoroughly clean and remove the entire old gasket. Doing so will ensure that the life of the gasket will be extended, and not result in a premature failure, causing more frustration, expense, and possible damage.

The exhaust elbow gasket comes as a complete set with precise CAD cut gasket to eliminate hand cutting or trimming for proper alignment. Typical thickness for these products can range up to 1/16". It is recommended during installation to clean both surfaces and apply a thin layer of high-temperature silicone sealer on the sides to ensure the ultimate seal.
Your Price: $4.06
Save: $1.87
(31% Off $5.93)
Part # 18-0114 ValueShip™ Eligible
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Replaces OEM part #
  • OMC 907761
    For: GM 4 Cyl.
    Use with Manifold: 18-1901
Your Price: $6.06
Save: $3.75
(38% Off $9.81)
Part # 18-0430 ValueShip™ Eligible
Replaces OEM part #
  • OMC 912477
Your Price: $4.63
Save: $2.27
(32% Off $6.90)
Part # 18-0673-9 ValueShip™ Eligible
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Pkg. of 2

Replaces OEM part #
  • OMC 910113
Your Price: $8.22 (Out of stock)
Save: $4.46
(35% Off $12.68)
Part # 18-0943-1-9 ValueShip™ Eligible
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Pkg. of 2
Used with: 18-1909

Replaces OEM part #
  • OMC 909786
  • OMC 3850496
(Out Of Stock)
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Your Price: $12.15
Save: $6.24
(33% Off $18.39)
Part # 18-2875-9 ValueShip™ Eligible
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Pkg. of 2

Used with: Elbow 18-1922

Replaces OEM part #
  • OMC 3850495
  • OMC 908013
  • VOLVO 3850495
For:
  • 3.0L, GS, GL, GLM, GLP, GSM, GSP
Your Price: $7.09
Save: $4.02
(36% Off $11.11)
Part # 18-2912 ValueShip™ Eligible
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Replaces OEM part #
  • MERCURY MARINE 27-53354
  • OMC 908079
  • OMC 27-53354
Your Price: $13.49 (Out of stock)
Save: $9.45
(41% Off $22.94)
Part # 18-4431-9 ValueShip™ Eligible
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Pkg. of 2
Replaces OEM part #
  • OMC 913783
  • VOLVO 3850496
Late Model Volvo Applications
(Out Of Stock)
Low Price Guarantee
Your Price: $4.93
Save: $2.66
(35% Off $7.59)
Part # 18-0476 ValueShip™ Eligible
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Blocked
Replaces OEM part #
  • BARR 01-0105
Fits:
  • Barr, Indmar & Marine Power Ford Small Block V8 302-351 cu.in.

Used with:
  • Riser: 18-1939
  • Riser: 18-1907
  • Manifold: 18-1898
  • Elbow: 18-1999
Included in 18-8535 mounting kit

Sierra part # 18-0476 riser block gaskets

The gaskets are constructed of a proven hi-temperature composite that does not contain asbestos materials. This gasket material has been designed to handle the high temperatures capable of exceeding 500 degrees Fahrenheit as well as harsh marine environments.

Each Sierra riser block-off gasket ensures the factory matched footprint of exhaust ports. The Typical thickness for these products can range up to 1/16". Be certain to thoroughly clean and remove the entire old gasket. When joining two non-machined surfaces, an exact match is not always possible. It is recommended that you use a thin layer of high-temperature silicone sealer on both sides of gasket prior to installation to create a more perfect reliable seal.
Your Price: $4.97
Save: $0.69
(12% Off $5.66)
Part # 18-2850-9 ValueShip™ Eligible
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Pkg. of 2

Replaces OEM part #
  • OMC 908935
Your Price: $7.94
Save: $3.50
(30% Off $11.44)
Part # 18-2854-9 ValueShip™ Eligible
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Pkg of 2
Replaces OEM part #
  • BARR 01-0107

Use with:
  • Risers: 18-1999, 18-1939, 18-1907
Included in 18-4364 mounting kit
Your Price: $3.83
Save: $3.87
(50% Off $7.70)
Part # 18-2861-9 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 9 hrs 4 mins.
Hurry! Only 1 left in stock
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Pkg. of 2

Replaces OEM part #
  • OMC 311121
  • Use with Manifold: 18-1901: End Plate Gasket: 18-4009
Your Price: $9.99 Discontinued
Save: $2.83
(22% Off $12.82)
Part # 18-0470 ValueShip™ Eligible
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Port and Starboard
GM Small Block V8 283-350 cu. in.

Used with:
    Manifold 18-1914
    ( Port and Starboard )
(Discontinued)
Low Price Guarantee
Sierra
Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull Stargreat fit
by Michael from Oklahoma City, Oklahoma on July 12, 2011
was gonna cut this gasket myself....till i got it apart and saw how weird it was lol....for 8 bux with shipping, i just bought one...works great
(0 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star Based On 2 Reviews | Write Review
Full StarFull StarFull StarFull StarFull StarJust what we needed
by Carol from Creedmoor, North Carolina on May 31, 2016
Arrival time quick. The men put it on in a short period of time. Can't wait for the opportunity to get the boat back in the water.
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Full StarFull StarFull StarFull StarFull StarSatisfied
by William from Brookfield, Missouri on June 05, 2012
I am satisfied with this product. It was the correct product for my boat.
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