Page 801 - 2021 Sierra Catalog

Item No. Description OE No. Application
1
18-1960-1 MANIFOLD 58759A10 GM In-Line Six Cylinder 250 & 292 cu.in. Models 165 & 200. Use with 18-2830-1 manifold gasket; 18-8531 Mounting Kit
2 18-2833 ELBOW GASKET 27-99777-2 Use with Elbows: 18-1971, 18-1978 & 18-1972. Included in 18-4362 mounting kit
3 18-0353 CARBURETOR GASKET 27-58764 Fits Manifold: 18-1960-1
4 18-2830-1 MANIFOLD GASKET 27-46401 Fits Manifold: 18-1960-1. Included in 18-8531 mounting kit.
5 18-1972 MANIFOLD ELBOW 76325A2 Use with Manifold: 18-1960-1; Elbow Gasket 18-2833
6 18-1971 MANIFOLD ELBOW 76351A2 Use with Manifold: 18-1960-1; Elbow Gasket 18-2833; Mounting Kit 18-4362
7 18-1978 MANIFOLD ELBOW 76771A3 Use with Manifold: 18-1960-1; Elbow Gasket 18-2833; Mounting Kit 18-4362
8 NSS MOUNTING BOLT N/A Included in 18-8552 mounting hardware
9 18-3233 MOUNTING STUD 16-49545 3/8-24, 3/8-16 X 1 3/4. Included in 18-4362 mounting kit.
10 NSS MOUNTING BOLT N/A Included in 18-8512 mounting kit.
11 18-4009 FRONT PLATE 60252A2 Fits Manifold: 18-1960-1
12 18-2832-1 FRONT/END PLATE GASKET 27-48043-1 Fits Port & Starboard Caps of Manifold: 18-1960-1. Included in 18-8512 mounting kit
13 NSS END PLATE N/A Fits Manifold: 18-1960-1
14 18-8552 HARDWARE KIT N/A Includes only hardware for 18-1972 elbow.
15 18-8531 MOUNTING KIT N/A Use with Manifold: 18-1960-1. Includes 18-2830-1 manifold gasket.
16 NSS MOUNTING STUD N/A Included in 18-8531 mounting kit
17 18-4362 MOUNTING KIT N/A Use with Elbows: 18-1971 & 18-1978. Includes 18-2833 elbow gasket
783
18 18-8512 MOUNTING KIT N/A Use with Front Plate: 18-4009. Includes 18-2832-1 gasket
I/O — MERCRUISER - Cooling System