Page 675 - 2021 Sierra Catalog

Item No. Description OE No. Application
1 NSS MOUNTING BOLT N/A Included in 18-4364 & 18-8535 mounting kits.
2 18-1939 MANIFOLD ELBOW BARR 20-0100, (4" hose, 7° down angle) MARINE POWER
0992-593
Use with Manifold: 18-1997-1; Riser Gasket: 18-2854-1 (open) or 18-0476-1 (blocked); Mount- ing Kit: 18-4364 (open) or 18-8535 (blocked)
3 18-1999 MANIFOLD ELBOW (3" hose, BARR 20-0082 Comes with 18-4364 (open) mounting package. 15° down angle) If blocked mounting kit is required use 18-8535
mounting kit. Use with Manifolds: 18-1997-1; Riser Gasket: 18-2854-1 (open) or 18-0476-1 (blocked)
4 18-1907 MANIFOLD ELBOW (3" hose) BARR 20-0100, INDMAR 53-2009,
53-2018
Use with Manifold: 18-1997-1; Riser Gasket: 18- 2854-1 (open) or 18-0476-1 (blocked); Mounting Kit: 18-4364 (open) or 18-8535 (blocked)
5 18-2854-1 ELBOW GASKET (OPEN) BARR 01-0107 Used with Risers: 18-1939, 18-1999, 18-1907. Included in 18-4364 mounting kit.
6 18-0476-1 ELBOW GASKET (BLOCKED) BARR 01-0105 Used with Risers: 18-1939, 18-1999, 18-1907. Included in 18-8535 mounting kit.
7 18-4258 BLACKSTEEL PLUG N/A Thread Size: 3/4". Use with Manifold Spacer: 18-1949.
8 18-1949 MANIFOLD SPACER N/A Use with Manifold: 18-1997-1.
9 18-4364 MOUNTING KIT BARR 20-0082-P Use with Risers: 18-1999, 18-1907, & 18-1939. (OPEN GASKET) Includes 18-2854-1 elbow gasket.
10 18-8535 MOUNTING KIT N/A Use with Risers: 18-1939, 18-1999, 18-1907. (BLOCKED GASKET) Includes 18-0476-1 elbow gasket. (Use with a
closed cooling system)
11 18-0604 EXHAUST MANIFOLD N/A GM 305-350 CID Engines; Use with Manifold: GASKET SET 18-1997-1
12 18-8536 MOUNTING KIT N/A Use with Manifold: 18-1997-1. Includes 18-2949 mounting kit.
13 18-1997-1 MANIFOLD BARR CHV-1-83 GM Small Block (V8) 305-350 cu.in. Use with
or 18-1964 Manifold Gasket 18-2949. Mounting Kit: 18-8536.
14 18-2949 MANIFOLD GASKET BARR CHV-47-000 Use with Manifold: 18-1997-1. Included in 18-8536 mounting kit.
15 NSS MOUNTING BOLT N/A Included in 18-8536 mounting kit.
16 18-8215 HOSE FITTING N/A 3/4" - 14NPT X 3/4" Hose (Corrosion Resistant Brass Fitting)
17 18-4461 HOSE FITTING N/A 3/4" - 14NPT X 1" Hose (Corrosion Resistant Brass Fitting)
18 18-8216 HOSE FITTING N/A 3/4" - 14NPT X 1" Hose (Corrosion Resistant Brass Fitting)
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INBOARD — UNIVERSAL - Cooling System