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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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Your Price: $18.41
Save: $6.24
(25% Off $24.65)
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
Your Price: $7.98
Save: $4.27
(34% Off $12.25)
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
Your Price: $22.10
Save: $9.44
(29% Off $31.54)
Part # 18-2949-9 ValueShip™ Eligible
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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

Your Price: $185.98
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Part # 18-1909-1 ValueShip™ Eligible
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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
Your Price: $179.87
Save: $95.81
(34% Off $275.68)
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
Your Price: $40.14
Save: $14.85
(27% Off $54.99)
Part # 18-8502 ValueShip™ Eligible
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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

Your Price: $139.81
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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
Your Price: $180.11
Save: $89.89
(33% 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
Your Price: $15.85
Part # 18-8553 ValueShip™ Eligible
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Used with: Exhaust Elbow 18-1921
Your Price: $10.70
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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
Fall Sale Price: $34.42
Save: $20.57
(37% Off $54.99)
Part # 9-40671 ValueShip™ Eligible
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Mounting Kit, Manifold
Fits 9-60401 and 9-60402 manifolds
Includes 9-61401 gasket and mounting hardware
Your Price: $192.99
Save: $56.89
(22% Off $249.88)
Part # 9-40911 ValueShip™ Eligible
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Riser
4" Exhaust outlet 7° down angle
Use 9-40672 mounting kit
OEM 913784, 3855270, 3850456, 3855270-9
Your Price: $201.99
Save: $68.01
(25% Off $270.00)
Part # 9-40601
SHIPS TODAY!* if ordered in 9 hrs 14 mins.
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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
Your Price: $201.99
Save: $73.69
(26% Off $275.68)
Part # 9-40602
SHIPS TODAY!* if ordered in 9 hrs 14 mins.
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Manifold, Starboard
Fits 305 - 350 CID V-8
Includes hose and clamp
Use 9-40671 mounting kit
OEM 909280, 912441
Your Price: $161.35
Save: $108.65
(40% Off $270.00)
Part # T-20903
SHIPS TODAY!* if ordered in 9 hrs 14 mins.
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Replaces:
  • OMC #'s 909312 and 908488
Your Price: $212.87
Save: $146.13
(40% Off $359.00)
Part # T-20905
SHIPS TODAY!* if ordered in 9 hrs 14 mins.
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Replaces:
  • Mercruiser # 90880. Cap included.
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