Parts for MerCruiser 454 Mag. MPI Horizon (Gen. VI) GM 454 V-8 Exhaust Manifold & Exhaust Elbow
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
# | 27-811572A94 | GASKET SET, Overhaul (454) (1 required per assembly) |
27-811572A94 - Engine Overhaul Gasket Set [ More info ] Unavailable |
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# | 27-805396A92 | GASKET SET, Overhaul (8.2L) (1 required per assembly) |
27-805396A92 - Engine Overhaul Gasket Set [ More info ] Unavailable |
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#1 | 807078A 2 | MANIFOLD ASSEMBLY, Exhaust (CERAMIC COATED) (2 required per assembly) |
807078A 2 - Manifold [ More info ] Unavailable |
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807078A 4 - Manifold Kit-EXH [ More info ] Unavailable |
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807078A 6 - Exhaust Manifold [ More info ] Unavailable |
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807078T09 - Exhaust Manifold [ More info ] Unavailable |
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MC-1-89011 - MerCruiser Exhaust Manifold for Big Block V8 [ More info ] |
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#2 | 22-41622 | PLUG, (.750-14) Pipe (AR required per assembly) |
22-41622 - Pipe Plug [ More info ] Unavailable |
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#3 | 27-46820 | GASKET (2 required per assembly) |
#4 | 10-37612 | SCREW, (.375-16 x 1.250) (14 required per assembly) |
#5 | 16-860165 | STUD (2 required per assembly) |
#6 | 860203T | SHIELD, Heat (1 required per assembly) |
#7 | 11-28770 | NUT, (.312-24) Stainless Steel (2 required per assembly) |
#8 | 27-860233 | GASKET (2 required per assembly) |
27-860233 - Elbow To Manifold Gasket [ More info ] Unavailable |
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MC47-27-41813 - MerCruiser Restrictor Gasket [ More info ]
$7.00 $5.37 |
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MC-20-99208 - MerCruiser Stainless Restrictor Plate, w/ Bleed [ More info ]
$21.00 $16.10 |
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#9 | 807914A 1 | ELBOW ASSEMBLY, Exhaust (2 required per assembly) |
807914A 1 - Exhaust Elbow [ More info ] Unavailable |
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807988A 2 - Exhaust Elbow [ More info ] Unavailable |
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18-1976-2 - Elbow - 4 inch, V6-V8, 44354A3, 807914A1 [ More info ] |
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#11 | 860222A 1 | RESONATOR (1 required per assembly) |
#12 | 861242 | BRACKET, Quick Connect (1 required per assembly) 454 MAG MPI HORIZON |
#13 | 23-57369 | SPACER (2 required per assembly) 454 MAG MPI HORIZON |
#14 | 10-43749 | SCREW, (.375-16 x 5.750) (4 required per assembly) 454 MAG MPI HORIZON |
#14 | 10-15007 | SCREW, (.375-16 x 6.25) (2 required per assembly) 454 MAG MPI HORIZON |
#14 | 10-44387 | SCREW, (.376-16 x 6.750) (2 required per assembly) 454 MAG MPI HORIZON |
#15 | 22-806926A 1 | ELBOW KIT, Drain (2 required per assembly) |
22-806926A 1 - Elbow Kit [ More info ] Unavailable |
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#16 | 22-806608A 1 | PLUG KIT, (.500-13) Royal Blue (2 required per assembly) |
22-806608A 1 - Plug Kit, Priced Individually [ More info ] Unavailable |
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22-806608A02 - Plug Assembly - Priced Individually [ More info ] Unavailable |
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22-8M0119211 - Drain Plug, Priced Individually, .5 inch x 13 [ More info ] |
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#17 | 25-806609 | QUAD RING (2 required per assembly) |
18-7165-9 - O-Ring (PK5) , 0304174 [ More info ]
$8.99 $8.92 |
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#18 | 93320A 5 | RISER KIT, Exhaust (3 Inches) (1 required per assembly) (3 IN.) EACH KIT CONTAINS 2 RISERS |
93320A 5 - Riser Kit - 3 Inch [ More info ] Unavailable |
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18-1908K - Exhaust Riser Spacer Kit, 3 Inch [ More info ]
$491.59 $394.96 |
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MC-20-93320A3 - 3 Inch MerCruiser Exhaust Riser Spacer Blocks [ More info ] |
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#18 | 93322A 7 | RISER KIT, Exhaust (6 Inches) (1 required per assembly) (6 IN.) EACH KIT CONTAINS 2 RISERS |
93322A 7 - Riser Kit -6 Inch [ More info ] Unavailable |
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MC-20-93322A3 - 6 Inch MerCruiser Riser Spacer Blocks (pair) [ More info ] |
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#20 | 22-32802 1 | PLUG, Pipe (.125-27) (2/4 required per assembly) |
22-32802 1 - Plug, Brass, Priced Individually [ More info ] Unavailable |
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22-32802 2 - Brass Pipe Plug, Priced Individually [ More info ] |
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#21 | 27-860232 | GASKET (2 required per assembly) |
27-860232 - Elbow To Manifold Gasket [ More info ] Unavailable |
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MC47-27-87105 - MerCruiser Exhaust Elbow Gasket [ More info ] |
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#22 | 12-46132 | WASHER (8 required per assembly) USE WITH 3 IN. RISER |
#23 | 11-46335 | NUT, (.375-24) (8 required per assembly) USE WITH 3 IN. RISER |
#24 | 16-11375 | STUD, (.375 x 9.56) (6 required per assembly) USE WITH 3 IN. RISER |
16-11375 - Stud [ More info ] Unavailable |
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16-8M0022137 - Stud [ More info ] Unavailable |
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#24 | 16-11376 | STUD, (.375 x 10.56) (2 required per assembly) USE WITH 3 IN. RISER |
16-11376 - Stud [ More info ] Unavailable |
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#23 | 11-805979 | NUT, (.375-24) (2 required per assembly) 8.2L MPI, USE WITH 6 IN. RISER |
11-805979 - Nut, (.375-24) [ More info ] Unavailable |
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11-8M0214946 - NUT [ More info ] Unavailable |
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#24 | 16-805978 | STUD (3/8 X 2-3/4 IN.) (2 required per assembly) 8.2L MPI, USE WITH 6 IN. RISER |
#25 | 10-12244 | SCREW, (.375-16 x 1.00) (8 required per assembly) 454 MAG MPI HORIZON, USE WITH 6 IN. RISER |
#26 | 818598T | BRACKET (1 required per assembly) USE WITH 6 IN. RISER |
#27 | 10-76596 | SCREW, (.250-20 x 1.250) (3 required per assembly) USE WITH 6 IN. RISER |
#28 | 23-806981 | SPACER (6 required per assembly) USE WITH 6 IN. RISER |
#29 | 12-35462 | WASHER, (.2656 x .625 x .0625) Stainless Steel (3 required per assembly) USE WITH 6 IN. RISER |
12-35462 - Washer, (.2656 X .625 X .0625) Stainless Steel [ More info ] |
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#30 | 11-64015 | NUT, (.250-20) (3 required per assembly) USE WITH 6 IN. RISER |