Parts for 350 Mag MPI Horizon Alpha / Bravo 5.7L (350 Cu In) V8 GM MerCruiser Engines - Gas Exhaust Manifold & Elbow
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| #1 | 8M0185794 | MANIFOLD-EXHAUST (2 required per assembly) — Replaces: 865735A02 |
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18-1843 - Exhaust Manifold, Dry Joint, V8 Small Block GM [ More info ] |
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MC-1-865735 -MerCruiser Center Discharge Dry Joint Exhaust Manifold V8 [ More info ] |
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| #2 | 8M0204679 | PLUG-PIPE (4 required per assembly) — Replaces: 428611 |
| #3 | 390721 | PLUG PIPE (.125-27) BRASS (2 required per assembly) |
| #4 | 864689 | PLUG EXPANSION EXPANSION (3 required per assembly) |
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19-864689 - Plug -expand - Priced Individually [ More info ] |
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| #5 | 33395 | GASKET MANIFOLD (2 required per assembly) |
| #6 | 8M0144800 | SCREW @2 (8 required per assembly) — Replaces: 8M2000229 |
| #7 | 866725 | FTG-STRGT 3/4 NPT Closed Cooling (2 required per assembly) |
| #8 | 863786A1 | FITTING ASSEMBLY DRAIN Standard Cooling (2 required per assembly) |
| #9 | 864701 | O-RING (1.112 X .103) (1 required per assembly) |
| #10 | 863129 | BALL CHECK (1 required per assembly) |
| #11 | 862994T | FITTING (1 required per assembly) |
| #12 | 864850A02 | GASKET ELBOW, RESITRICTOR Standard Cooling (2 required per assembly) |
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18-0722 - Riser Gasket, Restricted, Dry Joint, 27-864850A02 [ More info ] |
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27-14850 - Riser Gasket, Dry Joint, Restricted, 27-864850A02 [ More info ] |
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| #12 | 864549A02 | GASKET ELBOW, BLOCK OFF Closed Cooling (2 required per assembly) |
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18-0720 - Riser Gasket, Closed, Dry Joint, 27-864549A02 [ More info ] |
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27-14549 - Riser Gasket, Dry Joint, Closed, 27-864549A02 [ More info ] |
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| #13 | 864591T02 | ELBOW-EXHAUST (2 required per assembly) |
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MC-20-864591 - Dry Joint Riser, 864591T02 (14 degree) [ More info ] |
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| #14 | 864689 | PLUG EXPANSION EXPANSION (4 required per assembly) |
| #15 | 8M0180564 | PLUG @5 (AR required per assembly) — Replaces: 73379 |
| #16 | 8M0204679 | PLUG-PIPE (2 required per assembly) — Replaces: 428611 |
| #17 | 866725 | FTG-STRGT 3/4 NPT (1 required per assembly) |
| #17 | 865159 | FITTING (1 required per assembly) |
| #18 | 865982057 | SCREW (.375-16 X 7.50) EXHAUST ELBOW (8 required per assembly) |
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10-8M0214977 - SCREW [ More info ] In Stock |
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| #19 | 16604 | FITTING (1 required per assembly) |
| #20 | 12524 | PLUG (2 required per assembly) |
| #21 | 866725 | FTG-STRGT 3/4 NPT (2 required per assembly) |
| #22 | 864263 | BRACKET FLUSHING ATTACHMENT (1 required per assembly) |







