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Sierra Marine Parts Catalog: OMC Sterndrive Cobra

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OIL FILTERS
Part #
Fits:
O.E.M. #
18-7824-1
GM Engines (Short Filter)
173232, 502902
18-7875
Ford Engines (Long Filter)
173231, 502900
18-7876
GM Engines (Long Filter)
173233, 502901
18-7878-1
M-100, M200 (Short Filter)
502904
18-7879
GM V-6 Engines
173834, 502903
SEE PAGES 152-154 FOR ADDITIONAL INFORMATION
CYLINDER HEAD ASSEMBLIES
18-4484
18-4485
CYLINDER HEAD ASSEMBLY
CYLINDER HEAD ASSEMBLY
Replaces: 985080
Fits: 5.7L V-8 GM (1987-95) with press in rocker arm studs with 12 intake manifold
Fits: 5.7L V-8 GM (1969-86) with 12 intake
mounting bolts- (4 inside intake manifold bolts at 23 degrees), center mount valve covers
manifold mounting bolts, perimeter mount valve cover
18-4486
CYLINDER HEAD ASSEMBLY
18-4489
CYLINDER HEAD ASSEMBLY
Fits: 5.7L V-8 GM Vortec (1996-Up) with press in rocker arm studs with 8 intake
manifold mounting bolts, composite valve cover
Fits: 2.5L/3.0L GM (1968-95)
18-4491
18-4495
CYLINDER HEAD ASSEMBLY
CYLINDER HEAD ASSEMBLY
Replaces 4.3L Vortec V-6 (1996-Up) with screw in rocker arm studs (non-adjustable
Replaces: 986086,988163,3854339
valve train), 8 intake manifold mounting bolts, center mount valve cover. NOTE: not for
Fits: (1986& Up) 5.0L Ford with D-shape 58 cc combustion chamber
use with engines using factory roller rocker arms.
18-4502
CYLINDER HEAD
High Performance
Aluminum cylinder head sold in pairs only. This utilizes a
18-4501
185cc intake runner/62cc exhaust runner and 2.02/1.60
CYLINDER HEAD
stainless valves placed in a 72cc combustion chamber.
780
Fits: 5.7, 6.2L GM small block V-8
Fits: 5.0L Vortec