OMC GM Small Block V8 Sterndrive/Cobra Exhaust Manifold Exploded View

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OMC GM Small Block V8 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.
Figure #DescriptionO.E.M. #Sierra #
1MANIFOLD3857723 18-1986
2ELBOW GASKET (Included in 18-8507 mounting kit. )909786 18-0943
3MANIFOLD ELBOW913784, 3855270, 3850459, 3857944 18-1909
4MOUNTING BOLT (Included in 18-8507 mounting kit. )N/ANSS
5HOSE FITTING 3/4" - 14NPT X 1" Hose (Corrosion Resistant Brass Fitting)N/A18-8216
6HOSE FITTING 3/4" - 14NPT X 1" Hose (Corrosion Resistant Brass Fitting)N/A 18-4461
7HOSE FITTING 3/4" - 14NPT X 3/4" Hose (Corrosion Resistant Brass Fitting)N/A18-8215
8MANIFOLD GASKET (Included in 18-8550 mounting kit. )96306 18-2949
9MOUNTING STUD (Included in 18-8550 mounting kit. )N/ANSS
10MOUNTING KIT (Includes 18-2949 manifold gasket. )N/A 18-8550
11MOUNTING KIT (Includes 18-0943 elbow gasket. )N/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
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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
Your Price: $8.99
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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
Your Price: $25.99 (Out of stock)
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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

Universal Hose Barbs
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Hose Barb - Sierra
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Part # 18-4461 ValueShip™ Eligible
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Replaces OEM part #

  • MERCURY MARINE 22-807155
3/4" - 14 NPT X 1" Hose
Corrosion Resistant Brass Fitting

Johnson / Evinrude / OMC 913784 replacement parts
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Exhaust Manifold Elbow Riser - Sierra
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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

Volvo / OMC 3852374-2 replacement parts
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Exhaust Manifold - Sierra
Your Price: $248.99 (Out of stock)
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Part # 18-1986-1
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Port and Starboard
For:

  • GM Small Block V8 305-350 ci
  • 5.0L & 5.7L GM (New Style)

Use with:
  • Exhaust Manifold Gasket: 18-2949
  • Mounting Kit:18-8550

Replaces OEM part #
  • OMC 3852374-2
  • OMC 3857723
  • VOLVO 3852374-2
  • VOLVO 3857723

Riser, Exhaust 4" - Mallory
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Riser, Exhaust 4" - Mallory
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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

OMC and Volvo Riser - H20 Manifolds
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OMC and Volvo Riser - H20 Manifolds
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Part # T-20909 ValueShip™ Eligible
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Replaces:

  • OMC #'s 913784, 3855270, 3850456
  • Volvo # 3855270-9