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

Exhaust Elbow Mounting Kit - Sierra*
Sale Price: $17.99
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(23% Off $23.49)
Part # 18-8507
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Part # 18-8507
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

Exhaust Manifold Elbow Gasket - Sierra*
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Part # 18-0943-1-9
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Part # 18-0943-1-9
Pkg. of 2
Used with: 18-1909

Replaces OEM part #

  • OMC 909786
  • OMC 3850496
Exhaust Manifold Gasket - Sierra

Exhaust Manifold Gasket - Sierra*
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Part # 18-2949-9
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Part # 18-2949-9
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

Exhaust Manifold Elbow Riser - Sierra*
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Part # 18-1909-1
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Part # 18-1909-1
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

Exhaust Manifold for OMC Sterndrive/Cobra, GLM 51410, Barr OMC-1-912441 - Sierra*
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Part # 18-1902
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Part # 18-1902
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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Part # 18-8502
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Part # 18-8502
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

Part # 18-1921
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Part # 18-1921
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

Exhaust Manifold for OMC Sterndrive/Cobra, GLM 51420, Barr OMC-1-912442 - Sierra*
Sale Price: $215.99
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Part # 18-1903
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Part # 18-1903
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

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

Exhaust Manifold Elbow Mounting Kit - Sierra*
Sale Price: $9.89
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Part # 18-8534
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Part # 18-8534
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
Sale Price: $4.99
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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
Sale Price: $10.99
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Part # 9-40670
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Part # 9-40670
Mounting Kit, Riser
Fits 9-40610 riser
Includes gasket and mounting hardware
Mounting Kit, Riser - Elbow - Mallory

Mounting Kit, Riser - Elbow - Mallory
Sale Price: $19.99
Save: $3.00
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Part # 9-40672
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Part # 9-40672
Mounting Kit, Riser
Fits 9-40611 riser
Includes gasket and mounting hardware
Mounting Kit, Manifold - Mallory

Mounting Kit, Manifold - Mallory
Sale Price: $34.99
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Part # 9-40671
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Part # 9-40671
Mounting Kit, Manifold
Fits 9-60401 and 9-60402 manifolds
Includes 9-61401 gasket and mounting hardware
Riser, Exhaust 4" - Mallory

Riser, Exhaust 4" - Mallory
Sale Price: $194.99
Save: $31.96
(14% Off $226.95)
Part # 9-40911
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Part # 9-40911
Riser
4" Exhaust outlet 7° down angle
Use 9-40672 mounting kit
OEM 913784, 3855270, 3850456, 3855270-9
Manifold, port V-8 - Mallory

Manifold, port V-8 - Mallory
Sale Price: $209.99
Save: $34.96
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Part # 9-40601
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Part # 9-40601
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

Manifold, strbd V-8 - Mallory
Sale Price: $209.99
Save: $34.96
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Part # 9-40602
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Part # 9-40602
Manifold, Starboard
Fits 305 - 350 CID V-8
Includes hose and clamp
Use 9-40671 mounting kit
OEM 909280, 912441
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