Sierra Marine Parts Catalog: OMC Sterndrive Cobra
RISER
Replaces: 980617
30� EXHAUST ELBOW ADAPTER
Use with:
For use with 3" I.D.
80� EXHAUST ELBOW
Manifold: 18-1904
Exhaust Hose
For 3" I.D. Exhaust Hose
Riser Gasket: 18-2850
Use with:
(As used in 18-1987 Exhaust
Fits: 170 (1974), 175 (1975-76),
Manifold Riser: 18-1999
Manifold Conversion Kit)
190 (1974-76), 235 (1975-76)
ELBOW MANIFOLD
ELBOW MANIFOLD
Replaces: 909863
Replaces: 987784
V-8
4 CYL.
Fits most GM V-8 small blocks
Use with:
Fits most 140 HP 3.0L (181 CID)
Use with:
Elbow Gasket: 18-0943-1
Manifold: 18-1901
Mounting Kit: 18-8534
Elbow Gasket: 18-2875
RISER
Replaces:
RISER
OMC 913784, 3855270, 3850456, 3857944,
Replaces: Barr 20-0100, Marine Power 0992-593 Barr, Indmar
VOLVO 3855270-9, 3857944-7, 3863061
and Marine Power Ford Small Block V8 302-351cu.in., GM Small
OMC Riser, 4" outlet 7�:Fits many GM & Ford center rise
Block V8 305-350cu.in., GM Big Block V8 454cu.in.
manifolds.
Use with:
Use with:
Manifold: 18-1986-1
Riser Gasket: 18-0943-1
Mounting Kit: 18-8507
RISER
EXHAUST
Replaces: Barr 20-0102, Indmar 53-2009,
MANIFOLD
53-2018, Barr and Indmar Ford Small Block
RISER
V8 302-351cu.in.
Replaces: Barr 20-0082
Use with:
Use with :
Riser Gasket: 18-2854 open or
Riser Gasket: 18-2854 open
18-0476 blocked
Comes with 18-4364 open
MANIFOLD END PLATE
If blocked mounting kit is required use 18-8535
Replaces: 910384
blocked
Replaces: Barr 20-0082-P
PIPE PLUGS
Thread
Part #
Size
1/4"
1/4"
3/4"
BRASS DRAIN COCK
1/8" - 27 NPT
HOSE BARB
Replaces: 379957
3/8" - 18 NPT
/4" - 14 NPT X 1" Hose
HOSE BARB
1/4"
3
56507 Pipe Sealant with Teflon�
18-3223-9 Bulk Pack of 12
Corrosion Resistant Brass Fitting
Fits: OMC- In-Line 6 Cylinders
is recommended for use on plug threads.
776
➀ Items ending in "D" are Display Packaged - Regular number is Non-Display