Page 934 - 2021 Sierra Catalog

18-1848
MANIFOLD
Replaces: 3852338, 3857656, 914899 Fits: 4.3L V-6
18-1991
30° EXHAUST ELBOW ADAPTER Replaces: Barr 200089P
For use with 3" I.D.
Exhaust Hose
Use with:
Manifold Riser: 18-1999
18-1992-1
80° EXHAUST ELBOW Replaces: Barr 200087P
For 3" I.D. Exhaust Hose (As used in 18-1987 Exhaust Manifold Conversion Kit)
18-1921
ELBOW MANIFOLD Replaces: 909863
V-8
Fits most GM V-8 small blocks Use with:
Manifold: 18-1902, 18-1903 Elbow Gasket: 18-0943-2 Mounting Kit: 18-8534
18-1922
ELBOW MANIFOLD
Replaces: 987784, 916096, 0740120, 3850799, 910380
4 CYL.
Fits most 140 HP 3.0L (181 CID) Use with:
Manifold: 18-1901
Elbow Gasket: 18-2875-1
18-1909-1
RISER
Replaces:
OMC 913784, 3855270, 3850456, 3857944
VOLVO 3855270-9, 3857944-7, 3863061, 3856444
OMC Riser, 4" outlet 7°:Fits many GM & Ford center rise manifolds.
Use with:
Manifold: 18-1986-1 Riser Gasket: 18-0943-2 Mounting Kit: 18-8507
18-1939
RISER
Replaces: Barr 20-0100, Marine Power 0992-593 Barr, Indmar and Marine Power Ford Small Block V8 302-351cu.in., GM Small Block V8 305-350cu.in., GM Big Block V8 454cu.in.
Use with:
Manifold: 18-1997-1, 18-1998-1
Riser Gasket: 18-2854-1 open or 18-0476-1 blocked Mounting Kit: 18-4364 open or 18-8535 blocked
4" hose
18-1907
RISER
Replaces: Barr 20-0102, Indmar 53-2009, 53-2018, Barr and Indmar Ford Small Block V8 302-351cu.in.
Use with:
Manifold: 18-1997-1, 18-1998-1 Riser Gasket: 18-2854-1 open or
18-0476-1 blocked
Mounting Kit: 18-4364 open or 18-8535
blocked 3" hose
18-1999 EXHAUST MANIFOLD RISER Replaces: Use with :
Barr 20-0082
Manifold: 18-1997-1 or 18-1998-1
Riser Gasket: 18-2854-1 open
3 1/2" hose
Comes with 18-4364 open
If blocked mounting kit is required use 18-8535 Replaces: Barr 20-0082-P
18-4009
MANIFOLD END PLATE Replaces: 910384
PIPE PLUGS
18-4461
HOSE BARB
3/4" - 14 NPT X 1" Hose Corrosion Resistant Brass Fitting
18-8216
HOSE BARB
3/4" - 14 NPT X 1" hose barb Fits: OMC- In-Line 6 Cylinders
➀18-4218D
18-4218
BRASS DRAIN COCK Replaces: 379957
1/4"
18-3223-9 Bulk Pack of 12
Part #
Thread Size
18-4256
1/4"
18-4257
1/4"
18-4258
3/4"
18-4263
1/8" - 27 NPT
18-4264
3/8" - 18 NPT
➀ Items ending in "D" are Display Packaged - Regular number is Non-Display
916
I/O — OMC STERNDRIVE/COBRA - Cooling System