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We supply NEW parts and specialize in locating obsolete, no-longer-available and back ordered parts. Browse our site to see just a few of the many parts we supply.  Call us or fill out the info form to receive a quote or to request information on parts not listed online.

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See Also Manifolds, Risers and Elbows Section

Model Serial Range Manifold, Stbd if necessary Manifold, Port if necessary Elbow, Stbd if necessary Elbow, Port if necessary End Cap Manifold block-Off Plate Manifold Gasket Elbow Gasket End Cap Gasket End Cap water Port Gasket Gasket Set
120 1666601 - 2046624             18-2896        
120 2046625 - 2324346     18-1973       18-2896 18-2819 18-1210 18-1209
18-4395
120 2324347 - 3377340     18-1973   18-1995   18-2896 18-2819 18-1210 18-1209
18-4395
120 3377341 - 5192408     18-1973   18-1995   18-2896 18-2819 18-1210 18-1209
18-4395
120 5192049 - 6229717     18-1973   18-1995   18-2896 18-2819 18-1210 18-1209
18-4395
120 6229718 - up 18-1956-1
  18-1972 (7)   18-4009   18-1204 18-2833 18-0928 18-2832 18-4367
140 (6Cyl) 1538930 - 1725960             18-2830        
140 (4Cyl) 2508261 - 3332137 18-1955-1   18-1971
  18-4009 (2) 18-1990 18-1203
18-2833 18-2832 18-2832  
140 (4Cyl) 3332138 - 5157668 18-1955-1   18-1971
  18-4009 18-1990 18-1203
18-2833 18-2832 (5) 18-2832 18-4398
140 (4Cyl) 5157669 - 6229717 18-1955-1   18-1971
  18-4009 18-1990 18-1203
18-2833   18-2832 18-4398
140 6229718 - up 18-1956-1
  18-1972 (7)   18-4009   18-1204 18-2833 18-0928 18-2832 18-4367
150 1666495 - 2048046             18-2830        
160 2048022 - 2770031     18-1973       18-2830   18-1210 18-1209
 
165 2770032 - up 18-1960-1
  18-1971
  18-4009 18-1990 18-2830 18-2833 18-2832(6) 18-2832 18-4396
175 (262 CID) B527955 - up 18-1952-1
18-1952-1
18-1970-1 (14)       18-2909
18-0897
    18-4347
185 (229 CID) 6330183 - up 18-1952-1
18-1952-1
18-1970-1 (14) 18-1970-1(14)     18-2909
18-0897
    18-4347
185 (262 CID) A331455 - up 18-1952-1
18-1952-1
18-1970-1 (14)       18-2909
18-0897
    18-4347
198 GM 4762210 - 6218461 18-1950-1 18-1950-1 18-1971 (9)
18-1971(9) 18-4009 18-4008 18-0872 18-2833 18-2832 18-2832 18-4394
200 2453769 - 2712072 18-1960-1
  18-1971
      18-2830 18-2833 18-2832 18-2832 18-4396
200 GM 6218462 - up 18-1953-2
18-1953-2
18-1970-1 (11,14) 18-1970-1(11,14)     18-0872 18-0897
    18-4394
200 GM B525982 - up 18-1953-2
18-1953-2
18-1970-1 (12,14) 18-1970-1(11,14)     18-0872 18-0897
    18-4394
205 (262 CID) A331455 - up 18-1952-1
18-1952-1
18-1970-1 (11,14) 18-1970-1(11,14)     18-2909
18-0897
    18-4347
205 B527955 - up 18-1952-1
18-1952-1
18-1970-1(14) 18-1970-1(14)     18-2909
18-0897
    18-4347
215 FORD 2781153 - up 18-1958-1 18-1962-1
18-1971 (9)
18-1971(9) 18-4009 18-4008 18-0183 18-2833 18-2832 18-2832 18-4399
225 GM 1539620 - 2278646             18-0872        
225 GM 2278647 - 2694014             18-0872        
225 FORD 3385721 - up 18-1958-1 18-1962-1
  18-1971(9) 18-4009   18-0183 18-2833 18-2832 18-2832 18-4399
225S FORD 3385721 - up 18-1958-1 18-1962-1
18-1971 (9)
18-1971(9) 18-4009 18-4008 18-0183 18-2833 18-2832 18-2832 18-4399
228 GM 4765100 - 4888929         18-4009 18-4008 18-0872 18-0885 18-2832 18-2832 18-4394
228 GM 4888930 - 5170008 18-1950-1 18-1951-1 18-1971
18-1971 18-4009 18-4008 18-0872 18-2833 18-2832 18-2832 18-4394
228 GM 5170009 - 6218461 18-1950-1 18-1951-1     18-4009 18-4008 18-0872 18-2833 18-2832 18-2832 18-4394
228 GM 6218462 - up 18-1953-2
18-1953-2
18-1970-1 (14) 18-1970-1(14)   18-4008 18-0872 18-0897
    18-4349
230 GM (IB) 5907058 - up 18-1953-2
18-1953-2
18-1970-1 (14) 18-1970-1(14)     18-0872 18-0897
    18-4349
230 GM 6218462 - up 18-1953-2
18-1953-2
18-1970-1 (12,14) 18-1970-1(14)     18-0872 18-0897
    18-4349
230 GM (IB) B522506 - up 18-1953-2
18-1953-2
18-1970-1 (12,14) 18-1970-1(14)     18-0872 18-0897
    18-4349
230 GM B525982 - up 18-1953-2
18-1953-2
18-1970-1 (12,14) 18-1970-1(12,14)     18-0872 18-0897
    18-4349
233 FORD 4173000 - up 18-1958-1 18-1962-1
  18-1971(3) 18-4009 (4) 18-4008 18-0183 18-2833 18-2832 18-2832 18-4399
250 GM 2314301 - 2639854         18-4009 (15) 18-4008 18-0872 18-0885 18-2832 18-2832 18-4394
250 GM 4768860 - 4908849 18-1950-1     18-1971 18-4009 18-4008 18-0872 18-2833 18-2832 18-2832 18-4394
255 FORD 3258728 - up 18-1958-1 18-1962-1
18-1971 (9)
18-1971(9) 18-4009 (10) 18-4008 18-0183 18-2833 18-2832 18-2832 18-4399
255 GM 4175500 - 4499060         18-4009 18-4008 18-0872 18-0885 18-2832 18-2832 18-4394
255 GM 4499061 - 5195908 18-1950-1 18-1951-1 18-1971 (9)
18-1971(9) 18-4009 18-4008 18-0872 18-2833 18-2832 18-2832 18-4394
255 GM 5195909 - up 18-1950-1 18-1951-1     18-4009 18-4008 18-0872 18-0885 18-2832 18-2832 18-4394
260 GM (IB) 5907058 - up 18-1953-2
18-1953-2
18-1970-1 (14) 18-1970-1(14)   18-4008 18-0872 18-0897
    18-4349
260 GM 4908850 - 6218461 18-1950-1 18-1951-1 18-1971
18-1971 18-4009 18-4008 18-0872 18-2833 18-2832 18-2832 18-4394
260 GM 6218462 - up 18-1953-2
18-1953-2
18-1970-1 (14) 18-1970-1(14)   18-4008 18-0872 18-0897
    18-4349
260 GM B525982 - up 18-1953-2
18-1953-2
18-1970-1 (12,14) 18-1970-1(12,14)   18-4008 18-0872 18-0897
    18-4349
260 GM (IB) B588506 - up 18-1953-2
18-1953-2
18-1970-1 (14) 18-1970-1(14)   18-4008 18-0872 18-0897
    18-4349
270 GM 2851074 - 3077735         18-4009   18-0872 18-0885 18-2832 18-2832 18-4394
280 GM 4176250 - up         18-4009   18-0872 18-0885 18-2832 18-2832 18-4394
300 MR GM 6668677 - up 18-1953-2
18-1953-2
        18-0872 18-2849
     
300 TRS GM 6668677 - up 18-1953-2
18-1953-2
        18-0872 18-2849
     
320 EFI GM A543604 - up 18-1953-2
18-1953-2
18-1970-1 (14) 18-1970-1(14)     18-0872 18-2849
     
320 EFI GM B157603 - up 18-1953-2
18-1953-2
18-1970-1 (14) 18-1970-1(14)     18-0872 18-2849
     
325 GM 2313965 - 3042730             18-0418 18-0885     18-4397
325 GM 3042731 - up         18-4009   18-0418 18-0885 18-2832 18-2832 18-4397
330 GM 4623115 - up         18-4009   18-0418 18-0885 18-2832 18-2832 18-4397
330 GM 6083145 - up     18-1970-1 (14)       18-0418 18-0897
    18-4348
340 GM 5889914 - up     18-1970-1 (14) 18-1970-1(14)     18-0418 18-0897
    18-4348
350 GM 3780450 - up         18-4009   18-0418 18-0885 18-2832 18-2832 18-4349
350 Mag GM A635178 - up 18-1953-2
18-1953-2
18-1970-1 (14) 18-1970-1(14)     18-0872 18-0897
    18-4349
350 Mag GM B525982 - up 18-1953-2
18-1953-2
18-1970-1 (12,14) 18-1970-1(14)     18-0872 18-0897
    18-4349
350 Mag Trn.Ski D505450 - up 18-1953-2
18-1953-2
18-1970-1 (14) 18-1970-1(14)     18-0872 18-0897
    18-4349
370 TRS GM 4179554 - up         18-4009 18-1990 18-0418 18-0885 18-2832 18-2832 18-4397
370 TRS GM 6721528 - up 18-1957-1 18-1957-1 18-1970-1 (14) 18-1970-1(14)     18-0418 18-2849 (17)
     
390 GM 2781129 - 2825059         18-4009   18-0418 18-0885 18-2832 18-2832 18-4397
400 TRS GM 4179554 - up         18-4009 18-1990 18-0418 18-0885 18-2832 18-2832 18-4397
420 GM A398941 - up (16)             18-0418        
425 GM A398941 - up (16)             18-0418        
440 TRS GM 4179554 - up         18-4009 18-1990 18-0418 18-0885 18-2832 18-2832 18-4397
454 Mag GM A631894 - up 18-1957-1 18-1957-1 18-1970-1 (14) 18-1970-1(14)     18-0418 18-0897
    18-4348
454 Mag Bravo GM B721206 - up 18-1957-1 18-1957-1 18-1970-1 (14) 18-1970-1(14)     18-0418 18-0897
    18-4348
454 Mag Bravo (Gen V) D805069 - up 18-1957-1 18-1957-1         18-0418 18-0897
    18-4348
460 TRS GM       18-4009   18-1990 18-0418 18-0885 18-2832 18-2832 18-4397  
465 C849992 - up             18-0418        
470 4208730 - 5520114     18-1971 (13)
18-1971(13)       18-2833 18-2832 18-2832  
470 5520115 - 6218036     18-1972(9)     18-1990   18-2833 18-2832 18-2832  
500 C577254 - up             18-0418        
502 Mag Bravo GM C878221 - up 18-1957-1 18-1957-1 18-1970-1 (14) 18-1970-1(14)     18-0418 18-0897
    18-4348
502 Mag Bravo (Gen V) D824589 - up 18-1957-1 18-1957-1         18-0418 18-0897
    18-4348
502 EFI D840650 - up 18-1957-1 18-1957-1         18-0418 18-0897
    18-4348
525 D456000 - up             18-0418        
888 FORD 3108723 - up 18-1958-1 18-1962-1
18-1971
18-1971 18-4009 18-4008 18-0183 18-2833 18-2832 18-2832 18-4399
898 GM 4762210 - 6218461 18-1950-1 18-1950-1 18-1971 (9)
18-1971(9) 18-4009 18-4008 18-0872 18-2833 18-2832 18-2832 18-4394
898 GM 6218462 - up 18-1953-2
18-1953-2
18-1970-1 (14) 18-1970-1(14)   18-4008 18-0872 18-0897
    18-4349
2.5L 6229718 - up 18-1956-1
  18-1972 (7)   18-4009   18-1204 18-2833 18-0928 18-2832 18-4367
3.0L 6229718 - up 18-1956-1
  18-1972 (7)   18-4009   18-1204 18-2833 18-0928 18-2832 18-4367
3.0L C856559 - F603999 18-1956-1
  18-1975-1
  18-4009 (8)   18-1204 18-2833 18-0928 18-2832  
3.0LX C856559 - F603999 18-1956-1
  18-1975-1
  18-4009 (8)   18-1204 18-2833 18-0928 18-2832  
4.3L B527955 - up 18-1952-1
18-1952-1
18-1970-1(14) 18-1970-1(14)     18-2909
18-0897
    18-4347
4.3L (262 CID) B527955 - up 18-1952-1
18-1952-1
18-1970-1 (14)       18-2909
18-0897
    18-4347
4.3L (GEN II) D714107 - up 18-1952-1
18-1952-1
18-1970-1 (14) 18-1970-1(14)     18-2909
18-0897
    18-4347
4.3L (GEN II) F000878 - up 18-1952-1
18-1952-1
18-1970-1 (14) 18-1970-1(14)     18-2909
18-0897
    18-4347
4.3LX B527955 - up 18-1952-1
18-1952-1
18-1970-1(14) 18-1970-1(14)     18-2909
18-0897
    18-4347
4.3LX (GEN II) D714370 - up 18-1952-1
18-1952-1
18-1970-1 (14) 18-1970-1(14)     18-2909
18-0897
    18-4347
4.3LX (GEN II) F001220 - up 18-1952-1
18-1952-1
18-1970-1 (14) 18-1970-1(14)     18-2909
18-0897
    18-4347
5.0L GM (IB) B522506 - up 18-1953-2
18-1953-2
18-1970-1 (12,14) 18-1970-1(14)     18-0872 18-0897
    18-4349
5.0L GM B525982 - up 18-1953-2
18-1953-2
18-1970-1 (12,14) 18-1970-1(12,14)     18-0872 18-0897
    18-4349
5.0L GM B525982 - up 18-1953-2
18-1953-2
18-1970-1 (12,14) 18-1970-1(11,14)     18-0872 18-0897
    18-4394
5.0LX GM B525982 - up 18-1953-2
18-1953-2
18-1970-1 (12,14) 18-1970-1(12,14)     18-0872 18-0897
    18-4349
5.7L Ski GM A338553 - up 18-1953-2
18-1953-2
18-1970-1 (14) 18-1970-1(14)     18-0872 18-0897
    18-4349
5.7L Ski GM B514627 - up 18-1953-1
18-1953-2
18-1970-1 (14) 18-1970-1(14)     18-0872 18-0897
    18-4349
5.7L (GM) B525982 - up 18-1953-2
18-1953-2
18-1970-1 (12,14) 18-1970-1(12,14)   18-4008 18-0872 18-0897
    18-4349
5.7L Bravo GM B525982 - up 18-1953-1
18-1953-2
18-1970-1 (12,14) 18-1970-1(12,14)     18-0872 18-0897
    18-4349
5.7L GM (IB) B588506 - up 18-1953-2
18-1953-2
18-1970-1 (14) 18-1970-1(14)   18-4008 18-0872 18-0897
    18-4349
7.4L (IB)(LHR)(Gen V) D715494 - up 18-1957-1 18-1957-1         18-0418 18-0897
    18-4348
7.4L GM 5889914 - up     18-1970-1 (14) 18-1970-1(14)     18-0418 18-0897
    18-4348
7.4L Bravo GM B771113 - up 18-1957-1 18-1957-1 18-1970-1 (14) 18-1970-1(14)     18-0418 18-0897
    18-4348
7.4L Mag Bravo (Gen V) D603118 - up 18-1957-1 18-1957-1         18-0418 18-0897
    18-4348
7.4L w/Hurth (IB) ALL 18-1957-1 18-1957-1 18-1970-1 (14) 18-1970-1(14)     18-0418 18-0897
    18-4348
8.2L w/Hurth (IB) C878221 - up 18-1957-1 18-1957-1         18-0418 18-0897
    18-4348
8.2L (IB) (Gen V)* D857200 - up 18-1957-1 18-1957-1         18-0418 18-0897
    18-4348
Model Serial Range Manifold, Stbd if necessary Manifold, Port if necessary Elbow, Stbd if necessary Elbow, Port if necessary End Cap Manifold block-Off Plate Manifold Gasket Elbow Gasket End Cap Gasket End Cap water Port Gasket Gasket Set
Notes:
(2) : S/N 2816417 & up only
(3) : Not including inboard
(4) : V-Drive use 18-1971
(5) : S/N 4481626 & up use 18-0928
(6) : S/N 4471566 & up use 18-0928
(7) : Two piece elbow assembly only
(8) : Manifold with end caps only
(9) : Inboards not included
(10) : V-Drive not included
(11) : Inboards use 18-1978
(12) : Cast iron elbow only
(13) : S/N 4625580 & up use 18-1972
(14) : For 0° - 3" O.D. use 18-1974-1\; For 15° - 3" O.D. use 18-1970-1\; For 7° - 4" O.D. use 18-1976-1
(15) : Electric choke only
(16) : Mercruiser system only
(17) : Adapter to Elbow Gasket use 18-0885


Page:1 2 3 4  Move Next
   18-1990 Manifold Block Off Plate (Sierra)
Manifold Block Off Plate
Description: 18-1990 Manifold Block Off Plate, Replaces Merc 73813A1, Also available as OSCO 54870
Base SKU: 18-1990
More Information
   18-1995 Manifold End Plate (Sierra)
Manifold End Plate
Description: 18-1995 Manifold End Plate Replaces: Mercruiser 47638. GM 4 cyl. 153 cu.in. For model 110/120 where carb. linkage mounts to the rear of the engine
Base SKU: 18-1995
More Information
   18-2819 Exhaust Elbow Gasket (Sierra)
18- 2819 Exhaust Elbow Gasket
Description: 18-2819 Exhaust Elbow Gasket Replaces: Mercruiser 27-39915
Base SKU: 18-2819
More Information
   18-2830 Exhaust Manifold Gasket (Sierra)
Exhaust Manifold Gasket
Description: 18-2830 Exhaust Manifold to Cylinder Head Gasket (GM INLINE 6 CYL) Replaces Mercruiser 27-46401
Base SKU: 18-2830
More Information
   18-2832 Manifold End Cap Gasket (Sierra)
Manifold End Cap Gasket
Description: 18-2832 Manifold End Cap Gasket Replaces Mercruiser 27-48043 1 Use with Manifolds: 18-1951-1, 18-1950-1 Use with End Plates: 18-1912, 18-4009
Base SKU: 18-2832
More Information
   18-2833 Exhaust Elbow Gasket (Sierra)
Exhaust Elbow Gasket
Description: 18-2833 Exhaust Elbow Gasket Replaces Mercruiser 27-997772
Base SKU: 18-2833
More Information
   18-2849 Exhaust Elbow Gasket (Open) (Sierra)
Exhaust Elbow Gasket
Description: 18-2849 Exhaust Elbow Gasket (Open) Replaces: Mercruiser 27-87105-1 27-818832, 27-863726
Base SKU: 18-2849
More Information
   18-2854 Exhaust Elbow Gasket (Open) (Sierra)
Exhaust Elbow Gasket
Description: 18-2854 Exhaust Elbow Gasket (Open) Part # 18-2854 Replaces: Barr 01-0107 Use with: 18-1999, 18-1939-, 18-1907
Base SKU: 18-2854
More Information
   18-4008 Restrictor Block Off Plate (Sierra)
Block Off Plate
Description: 18-4008 Restrictor Block Off Plate Replaces: Mercruiser 60207 Use with: Riser 18-1971, 18-1978 Also available as OSCO 60207
Base SKU: 18-4008
More Information
   18-4009 Manifold End Plate (Sierra)
Manifold End Plate
Description: 18-4009 Manifold End Plate w/ Hose Fitting. Replaces Mercruiser 60252A2 Use with: Manifold: 18-1950-1, 18-1951-1, 18-1954-1, 18-1955-1, 18-1956-1, 18-1958, 18-1962, 18-1960-1. End Plate Gasket:18-2832 Mounting Kit: 18-8512 Also available as OSCO 60252.
Base SKU: 18-4009
More Information
   18-5021 Manifold End Plate (Sierra)
End Plate
Description: 18-5021 Manifold End Plate Replaces: Mercruiser 805629. Use with: Manifold: 18-1954-1, 18-1955-1, 18-1956-1
Base SKU: 18-5021
More Information
   Carb Mounting Gasket (Sierra)
Carb Mounting Gasket
Description: 18-0353 Carb Mounting Gasket Replaces Mercruiser 27-58764 Used with Manifold 18-1960-1
Base SKU: 18-0353
More Information
   End Cap to Manifold Gasket (Sierra)
End Cap to Manifold Gasket
Description: 18-1210 Manifold End Cap Gasket Replaces: Mercruiser 27-39923
Base SKU: 18-1210
More Information
   Exhaust Elbow (Sierra)
Elbow
Description: 18-1937 Exhaust Elbow Replaces: 98562A6 Mercruiser 4 Cylinder 224cu. in. 3.7L (Models: 165, 170, 180, 190). Use with: Exhaust Elbow Mounting Gasket: 18-0881 Mounting Kit: 18-8530 Also available as OSCO 8561
Base SKU: 18-1937
More Information
   Exhaust Elbow Gasket (Sierra)
Exhaust Elbow Gasket
Description: 18-0881 Exhaust Elbow Gasket Replaces: 27-18272 Included in 18-8530 Mounting Kit Used with: Elbow 18-1937
Base SKU: 18-0881
More Information
   Exhaust Elbow Gasket (Sierra)
Exhaust Elbow Gasket
Description: 18-0885 Exhaust Elbow Gasket Replaces Mercruiser 27-18272
Base SKU: 18-0885
More Information
   Exhaust Elbow Gasket (Sierra)
Exhaust Elbow Gasket
Description: 18-0897 Restrictor Exhaust Elbow Gasket Replaces: Mercruiser 27-41813 Used with Riser/Elbow 18-1976-1, 18-1970-1
Base SKU: 18-0897
More Information
   Exhaust Elbow Gasket Blocked (Sierra)
Exhaust Elbow Gasket
Description: 18-0672 Exhaust Elbow Block Off Gasket Replaces Mercruiser 27-860231, 8637251 Used with Riser: 18-1970-1, 18-1976-1 For Closed Cooling
Base SKU: 18-0672
More Information
   Exhaust Elbow Mounting Kit (Sierra)
Exhaust Elbow Mounting Kit
Description: 18-8500 Exhaust Elbow Mounting Kit Mercruiser 4 cylinder 224cu.in. 3.7L (Models: 165, 170, 180, 190) Used with: Elbow/Reservoir 18-1905 Also available as OSCO 0879-MK
Base SKU: 18-8500
More Information
   Exhaust Elbow Mounting Kit (Sierra)
Exhaust Elbow Mounting Kit
Description: 18-8505 Exhaust Elbow Mounting Kit Mercruiser GM V6 229 and 262 cu.in (Models 185 and 205), GM Small Block V8 305-350cu.in. (Models: 200, 228, 230, 260, 898) GM Big Block V8 454cu.in. (Models: 330, 340 and 7.4L) Used with: Riser 18-1976-1 Also available as OSCO 4354-MK
Base SKU: 18-8505
More Information
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