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Sierra Marine Parts Catalog: Mercruiser

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PKG. OF 2
18-2949
18-2949-9
EXHAUST MANIFOLD GASKET
18-0603
18-0604
Replaces: Barr CHV-47-000
EXHAUST MANIFOLD GASKET SET
EXHAUST MANIFOLD GASKET SET
Use with:
For: Ford 302/351 CID Engines
For: GM 305/350 CID Engines
For use with 18-1998-1
For use with 18-1997-1
Manifold: 18-1997-1
18-4224D
18-4218D
18-4218
DRAIN TAP
18-4224
Replaces: 22-87238, 22-16951A1,
DRAIN ELBOW
18-4226
22-16951T1, Q1 1/4" NPT
ASSEMBLY
DRAIN PLUG
18-3223-9
Replaces: 22-806926A1
Replaces: 22-806608A1
Bulk pack of 12
18-8216
18-4461
HOSE BARB
Replaces: 22-36305
HOSE BARB
Replaces: 22-807155
Fits: Mercruiser- V6 (229 and
18-4227
3/4" - 14 NPT x 1" Hose
262ci),Small Block V8 (305-350ci), Big
DRAIN ELBOW
Corrosion Resistant Brass Fitting
Block V8 (454ci)
Replaces: 22-806926
Items ending in "D" are Display Packaged - Regular number is Non-Display
Priced per Package
MANIFOLD/MANIFOLD GASKET APPLICATION
#
Year
Serial Number
Exh Manifold
Exh Manifold
Exh
End Cap
End Cap
Manifold
Exh Elbow
Liter
Model
Note
CID
Cyl Stroke
Range
Range
Port
Starboard
Elbow
Front
Rear
Gasket
Gasket
2.5L
120
153
4
4
1966-1982
2046625 - 6229717
27-52546
18-2819
2.5L
120
153
4
4
2324347 - 3377340
18-1995
18-2896
18-2819
2.5L
120
153
4
4
3377341 - 5192408
18-1995
18-2896
18-2819
2.5L
120
153
4
4
5192049 - 6229717
18-1995
18-2896
18-2819
2.5
120
153
4
4
1983-1986
6229718 - B5311853
18-4009
18-1204
18-2833
2.5L
2.5L
153
4
4
1987-1989
B531854 - C853255
18-1956-1
18-4009
18-4009
18-1204
18-2833
3.0L
140
181
4
4
1968-1982
2508261 - 6229717
18-1955-1
18-1971
18-4009
18-1990
18-2912
18-2833
3.0L
140
181
4
4
3332138 - 5157668
18-1955-1
18-4009
18-1203
18-2833
3.0L
140
181
4
4
5157669 - 6229717
18-1955-1
18-4009
18-1203
18-2833
3.0L
140
181
4
4
1983-1986
6229718 - B450800
18-1975-1
18-4009
18-1204
18-2833
3.0L
3.0L
181
4
4
1990-1994
C856559 & Up
18-1956-1
18-1975-1
18-4009
18-1204
18-2833
3.0L
3.0L
181
4
4
1987-1989
B450801 - C856558
18-1975-1
18-4009
18-1204
18-2833
3.0L
3.0L
181
4
4
1998-2003
L010042 - M679999
18-1956-1
18-1975-1
18-1990
18-1204
18-2833
3.0L
3.0L
181
4
4
2003-2010
M680000 & Up
18-1956-1
18-1975-1
18-0680
18-2833
3.0L
3.0LX
181
4
4
1990-1997
C856559 - K999999
18-1956-1
18-1975-1
18-1990
18-0680
18-2833
3.0L
3.0L MpI / 3.0L eC
181
4
4
2008-2010
A072812 & Up
18-0680
150
4
4
1666495 - 2048046
18-2830
160
4
4
2048022 - 2770031
18-2830
3.7L
165
224
4
4
1987
B434941 - B774251
18-1937
18-0956
18-0881
3.7L
165
224
4
4
1987
B434941 - B774251
18-0956
3.7L
165
224
4
4
2770032 & up
18-1960-1
18-4009
18-2830
18-2833
3.7L
170
224
4
4
1985-1986
6916779 - B434940
18-1937
18-0956
18-0881
3.7L
170
224
4
4
1985-1986
6916779 - B434940
18-0956
18-0113
3.7L
180
224
4
4
1987
B436391 - B775248
18-1937
18-0956
18-0881
3.7L
180
224
4
4
1987
B436391 - B775248
18-0956
18-0113
3.7L
190
224
4
4
1985-1986
6916779 - B436390
18-1937
18-0956
18-0881
3.7L
190
224
4
4
1985-1986
6916779 - B436390
18-0956
18-0113
3.7L
3.7L
224
4
4
1988-1989
B774252 & Up
18-1937
18-0956
18-0881
3.7L
3.7L
224
4
4
1988-1989
B774252 & Up
18-0956
3.7L
3.7LX
224
4
4
1988-1989
B775249 & Up
18-1937
18-0956
18-0881
3.7L
3.7LX
224
4
4
1988-1989
B775249 & Up
18-0956
18-0113
470
224
4
4
1976-1977
4208730 - 4625579
18-0956
18-2833
470 MCM / 470 MIe
224
4
4
1977-1982
4625580 - 6218036
18-0956
18-2833
470
224
4
4
1983-1984
6218037 - 6916778
18-0956
18-0113
485
224
4
4
1980-1982
5685394 - 6218036
18-0956
488
224
4
4
1983-1984
6170297 - 6916778
18-0956
18-0113
140
194
6
4
1963
1538930 - 1725960
18-2830
150
230
6
4
1964-1966
1666495 - 2048046
18-2830
160
250
6
4
1967-1969
2048022 - 2770031
18-2830
165
250
6
4
1970-1981
2770032 - 5813433
18-1960-1
18-1971
18-4009
18-1990
18-2830
18-2833
200
292
6
4
1969
2453769 - 2712072
18-1960-1
18-1971
18-1990
18-2830
18-2833
185
4bbl
229
6
4
1983-1984
6330183 - 6919655
18-1952-1
18-1952-1
18-1970-1
18-2909
18-0897
175
262
6
4
1987
B527955 - B773242
18-1952-1
18-1952-1
18-1976-1
18-2909
18-0897
For engines with aluminum exhaust manifolds
In-line applications
Exhaust manifold with external water rail
For engines with cast iron exhaust manifolds
V-drive applications
Exhaust manifold w/o external water rail
3" (76mm) O.D. & 0 degree down angle
Standard rise
1 piece exhaust manifold is nla. Rngine must be converted to
3" (76mm) O.D. & 15 degree down angle
2" (51mm) rise
the 2 piece exhaust system
4" (102mm) O.D.
3" (76mm) rise
Engines with easy drain system
2 piece exhaust manifold
6" (152mm) rise
Engines with multi-point drain system
1 piece exhaust manifold
Port
Intermediate collector housing
671
Has a rectangular elbow mounting bolt pattern
Starboard
Has a square elbow mounting bolt pattern
Engines with risers or closed cooling may require a different gasket than listed