OMC GM Small Block V8 (1979-89) Sterndrive/Cobra Exhaust Manifold Exploded View

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OMC GM Small Block V8 (1979-89) Sterndrive/Cobra Exhaust Manifold Exploded View
OMC Sterndrive/Cobra Exhaust Manifold Exploded View Diagram and Parts
Fits GM Small Block V8 305-350 cu. In.
1979-1989
Figure #DescriptionO.E.M. #Sierra #
1MANIFOLD (STARBOARD)912441 18-1902
2MANIFOLD (PORT)912442 18-1903
3ELBOW GASKET (Included in 18-8534 mounting kit. )909786 18-0943
4MANIFOLD ELBOW909863 18-1921
5MOUNTING BOLT (Included in 18-8534 mounting kit. )N/ANSS
6MANIFOLD GASKET (18-1903. Included in 18-8502 )96306 18-2949
7MOUNTING STUD (Included in 18-8502 mounting kit. )N/ANSS
8MOUNTING KIT (Includes 18-2949 manifold gasket. )N/A 18-8502 or 18-8550
9MOUNTING KIT (Includes 18-0943 elbow gasket. )N/A 18-8534
10HARDWARE KIT (Hardware only for Elbow 18-1921. )N/A 18-8553
11MANIFOLD ELBOWN/A 18-1909
12MOUNTING KITN/A 18-8507
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Exhaust Elbow Mounting Kit - Sierra
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Exhaust Elbow Mounting Kit - Sierra
Your Price: $20.99
Save: $3.66
(14% Off $24.65)
Part # 18-8507
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Replaces OEM part #

  • OMC 3856444
For:
  • OMC/Volvo GM Small Block V8 305-350 cu.in.

Used With:
  • Riser: 18-1909

Johnson / Evinrude / OMC 909786 replacement parts
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Exhaust Manifold Elbow Gasket - Sierra
Your Price: $8.99
Save: $2.87
(24% Off $11.86)
Part # 18-0943-1-9
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Pkg. of 2
Used with: 18-1909

Replaces OEM part #

  • OMC 909786
  • OMC 3850496

Exhaust Manifold Gasket - Sierra
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Exhaust Manifold Gasket - Sierra
Your Price: $25.99
Save: $5.55
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Part # 18-2949-9
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Pkg of 2
Replaces OEM part #

  • CRUSADER 96306
  • BARR CHV-47-000
  • VOLVO 835966-3
  • VOLVO 856034-4

Use with:
  • Manifold 18-1997-1, 18-1951-1 18-1931-1; Included in 18-8511 mounting kit
For:
  • AQ200, 225, 260, 271, 290, 311, V-8

Johnson / Evinrude / OMC 913784 replacement parts
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Exhaust Manifold Elbow Riser - Sierra
Your Price: $208.99
Save: $40.89
(16% Off $249.88)
Part # 18-1909-1
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OMC Riser, 4" outlet 7 degrees. Fits many GM & Ford center rise manifolds
Use with:

  • Manifold: 18-1986
  • Riser Gasket: 18-0943
  • Mounting Kit: 18-8507


Replaces OEM part #
  • OMC 913784
  • OMC 3857944
  • OMC 3855270
  • OMC 3850456
  • VOLVO 3857944-7
  • VOLVO 3855270-9
  • VOLVO 3850456

GLM 51410 replacement parts
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Exhaust Manifold for OMC Sterndrive/Cobra, GLM 51410, Barr OMC-1-912441 - Sierra
Your Price: $210.99
Save: $64.69
(23% Off $275.68)
Part # 18-1902
SHIPS TOMORROW!* if ordered in 16 hrs.
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V-8 Starboard Side
Fits most GM V-8 small blocks with end riser
Use with: Mounting Kit 18-8502

Replaces OEM part #

  • OMC 912441

Exhaust Manifold Mounting Kit - Sierra
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Exhaust Manifold Mounting Kit - Sierra
Your Price: $44.99
Save: $10.00
(18% Off $54.99)
Part # 18-8502
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Fits:

  • OMC Gm Small Block V8 305-350 cu. in.
    ( 1979-89 ) OMC/Volvo GM Small Block 305-350 cu. in.

  • Use with: Manifolds 18-1931-1, 18-1902 & 18-1903, 18-1986. Includes mounting studs and hardware

Johnson / Evinrude / OMC 909863 replacement parts
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Part # 18-1921
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Fits most GM V-8 small blocks
Use with:
Manifold: 18-1902, 18-1903
Elbow Gasket: 18-0943
Mounting Kit: 18-8534

Replaces OEM part #

  • OMC 909863

Exhaust Manifold for OMC Sterndrive/Cobra, GLM 51420, Barr OMC-1-912442 - Sierra
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Exhaust Manifold for OMC Sterndrive/Cobra, GLM 51420, Barr OMC-1-912442 - Sierra
Your Price: $210.99
Save: $59.01
(21% Off $270.00)
Part # 18-1903
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Replaces OEM part #

  • OMC 912442 V-8 Port side
    Fist most GM V-8 small blocks with end riser
    Use with: mounting Kit: 18-8502

Exhaust Manifold Elbow Mounting Kit - Sierra
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Part # 18-8553
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Used with: Exhaust Elbow 18-1921

Exhaust Manifold Elbow Mounting Kit - Sierra
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Exhaust Manifold Elbow Mounting Kit - Sierra
Your Price: $11.99
Save: $1.59
(11% Off $13.58)
Part # 18-8534
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OMC GM Small Block V8 305-350 cu. in.
( 1979-1989 ) and multiple application
Ford and GM Risers
Used with: Riser 18-1921

Mallory Gasket, Exhaust Elbow 9-61452

Mallory Gasket, Exhaust Elbow 9-61452
Spring Sale Price: $4.49 (Out of stock)
Save: $1.45
(24% Off $5.94)
Part # 9-61452
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Replaces Original Equipment Manufacturer(OEM):OMC, Volvo
Replaces Original Equipment Manufacturer # (OEM #):3850496
Fits Application:Most OMC GM center rise manifolds

Mounting Kit, Manifold - Mallory

Mounting Kit, Manifold - Mallory
Spring Sale Price: $10.79 (Out of stock)
Save: $2.79
(20% Off $13.58)
Part # 9-40670
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Mounting Kit, Riser
Fits 9-40610 riser
Includes gasket and mounting hardware

Mounting Kit, Riser - Elbow - Mallory

Mounting Kit, Riser - Elbow - Mallory
Spring Sale Price: $18.89
Save: $5.76
(23% Off $24.65)
Part # 9-40672
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Mounting Kit, Riser
Fits 9-40611 riser
Includes gasket and mounting hardware

Mounting Kit, Manifold - Mallory

Mounting Kit, Manifold - Mallory
Spring Sale Price: $40.49
Save: $14.50
(26% Off $54.99)
Part # 9-40671
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Mounting Kit, Manifold
Fits 9-60401 and 9-60402 manifolds
Includes 9-61401 gasket and mounting hardware

Riser, Exhaust 4" - Mallory
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Riser, Exhaust 4" - Mallory
Spring Sale Price: $192.59
Save: $57.29
(22% Off $249.88)
Part # 9-40911
SHIPS TOMORROW!* if ordered in 16 hrs.
Hurry! Only 1 left in stock
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Riser
4" Exhaust outlet 7° down angle
Use 9-40672 mounting kit
OEM 913784, 3855270, 3850456, 3855270-9

Manifold, port V-8 - Mallory
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Manifold, port V-8 - Mallory
Spring Sale Price: $200.69
Save: $69.31
(25% Off $270.00)
Part # 9-40601
SHIPS TOMORROW!* if ordered in 16 hrs.
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Manifold, Port
Fits 305 - 350 CID V-8
Includes hose and clamp
Use 9-40671 mounting kit
OEM 910144, 909279, 912442

Manifold, strbd V-8 - Mallory
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Manifold, strbd V-8 - Mallory
Spring Sale Price: $200.69
Save: $74.99
(27% Off $275.68)
Part # 9-40602
SHIPS TOMORROW!* if ordered in 16 hrs.
Hurry! Only 1 left in stock
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Manifold, Starboard
Fits 305 - 350 CID V-8
Includes hose and clamp
Use 9-40671 mounting kit
OEM 909280, 912441

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OMC Manifold - H20 Manifolds
Your Price: $385.71
Part # T-20903
SHIPS TOMORROW!* if ordered in 16 hrs.
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Replaces:

  • OMC #'s 909312 and 908488

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Mercruiser Elbow - H20 Manifolds
Your Price: $512.86 (Out of stock)
Part # T-20905
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Replaces:

  • Mercruiser # 90880. Cap included.

Great Boating Days are Ahead!
Enjoy Extra Discounts 5-20% Off During the SPRING SAVINGS SALE!
Great Boating Days are Ahead!
Enjoy Extra Discounts 5-20% Off During the SPRING SAVINGS SALE!