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

Sierra

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
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Part # 18-8507 ValueShip™ Eligible
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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
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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

Exhaust Manifold Gasket - Sierra
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Exhaust Manifold Gasket - Sierra
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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
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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
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Part # 18-1902
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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
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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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Exhaust Manifold Elbow for OMC Sterndrive/Cobra 909863, GLM 51320, Barr OMC-20-982680 - Sierra
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Part # 18-1921 ValueShip™ Eligible
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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
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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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Exhaust Manifold Elbow Mounting Kit - Sierra
Your Price: $16.99
Part # 18-8553 ValueShip™ Eligible
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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
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Part # 18-8534 ValueShip™ Eligible
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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

Mounting Kit, Manifold - Mallory

Mounting Kit, Manifold - Mallory
Your Price: $44.99
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Mounting Kit, Manifold
Fits 9-60401 and 9-60402 manifolds
Includes 9-61401 gasket and mounting hardware

OMC Manifold - H20 Manifolds
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OMC Manifold - H20 Manifolds
Your Price: $161.35
Part # T-20903
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Replaces:

  • OMC #'s 909312 and 908488

Mercruiser Elbow - H20 Manifolds
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Mercruiser Elbow - H20 Manifolds
Your Price: $212.87
Part # T-20905
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Replaces:

  • Mercruiser # 90880. Cap included.