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Sierra Marine Parts Catalog: Mercruiser

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Item No
Description
OE No.
Application
1
18-1951-1
MANIFOLD (STARBOARD)
774235A2
GM Small Block (V8) 305-350 cu.in. Models 198, 228, & 898.
(Starboard)
2
18-1978
MANIFOLD ELBOW
76771A3
Use with Manifolds: 18-1950-1, 18-1951-1; Elbow Gasket 18-2833;
Mounting Kit 18-4362.
3
18-3233
MOUNTING STUD
16-49545
3/8-24, 3/8-16 X 1 3/4. Included in 18-4362 mounting kit.
4
NSS
MOUNTING STUD
N/A
Included in 18-8554 mounting kit.
5
NSS
MOUNTING BOLT
N/A
Included in 18-8512 mounting kit.
6
18-2833
ELBOW GASKET
27-99777-2
Use with Elbows: 18-1971 & 18-1978. Included in 18-4362
mounting kit.
7
18-1971
MANIFOLD ELBOW
76351A2
Use with Manifolds: 18-1950-1, 18-1951-1; Elbow Gasket 18-2833;
Mounting Kit 18-4362.
8
18-1906
MANIFOLD SPACER
61851
3" Spacer for Manifold: 18-1950-1, 18-1951-1. Use with mounting
kit 18-8554 with 18-1971 or 18-1978 Elbows.
9
18-4008
BLOCK OFF PLATE
60207
Use with Manifolds 18-1950-1, 18-1951-1. Requires (2) 18-2833
elbow gaskets
10 18-1950-1
MANIFOLD (PORT)
77234A2
GM Small Block (V8) 305-350 cu.in. Models 198, 228, & 898. (Port)
11 18-4009
END PLATE
60252A2
Use with (Port & Starboard) Manifolds: 18-1950-1 & 18-1951-1;
Mounting Kit: 18-8512
12 18-2832
FRONT/END PLATE
27-48043-1
Fits Port & Starboard Caps of Manifolds: 18-1950-1, 18-1951-1.
GASKET
Use with Front Plate: 18-4009. Included in 18-8512 mounting kit.
13 NSS
END PLATE
54870
Fits Manifold: 18-1950-1, 18-1951-1; Mounting Kit: 18-8512.
14 18-2949
MANIFOLD GASKET
96306
Use with Manifold: 18-1951-1
15 NSS
MOUNTING BOLT
N/A
Included in 18-8520 mounting kit.
16 18-8520
MOUNTING KIT
N/A
Use with Manifolds: 18-1950-1, 18-1951-1. Includes 18-2949
manifold gasket.
17 18-8512
MOUNTING KIT
N/A
Use with Front/End Plates: 18-4009. Includes 18-2832 front end
plate gasket
18 18-8554
MOUNTING KIT
N/A
Use with Manifold Spacer: 18-1908 with Riser 18-1971 or 18-1978
Elbows. Included in 18-1908K. Includes (1) 18-2849 & 18-0897
elbow gaskets.
19 18-8514
MOUNTING KIT
N/A
Use with Elbows: 18-1971 & 18-1978. Includes 18-2833 gasket
& 18-4008 block off plate.
20 18-4362
MOUNTING KIT
N/A
Use with Elbows: 18-1971 & 18-1978. Includes 18-2833 elbow
gasket.
21 18-8548
HARDWARE KIT
N/A
Includes only hardware for 18-1950-1 & 18-1951-1 manifolds.
Included in 18-8520 mounting kit.
657

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