Sierra Manifold - SIE-18-1998-1

Sierra 18-1998-1 Exhaust Manifold - Port & Starboard for Ford V8 Engines

Fits Port and Starboard Sides. Universal Center Riser Manifold.

Fits:

Crusader 302 and 351 CID Engines

Interceptor 221, 260 and 289 CID Engines

Commander, Mercury, OMC, Palmer, Pleasurecraft & Waukesha

Comes with 18-4363 Mounting Package

Use 18-0603 Exhaust Manifold Gasket Set

Includes:

Exhaust Elbow Gasket: 18-2854-1

Exhaust Manifold Gasket: 18-0183-1

Pipe Plug: 18-4258

Use With:

Exhaust Manifold Gasket: 18-0183

Exhaust Manifold Gasket Set: 18-0603

Exhaust Manifold Mounting Kit: 18-8538

Riser: 18-1907 and 18-1939

Elbow: 18-1999

Manifold Spacer: 18-1949

Exhaust Elbow Mounting Package: 18-4363

Fuel Elbow: 18-8112

Interchangeable With:

Barr

FM-1-83

FM183

GLM

56250

Mallory

9-40111

Osco

FL994

FLCR818

HGE

1-81

Frequently Asked Questions

• What is the Sierra 18-1998-1 Exhaust Manifold used for? The Sierra 18-1998-1 is a universal center riser exhaust manifold designed for compatible Ford V8 marine engines. It fits both port and starboard sides and is specified for applications including Crusader, Interceptor, Commander, Mercury, OMC, Palmer, Pleasurecraft, and Waukesha engines.
• What Ford V8 engines does the Sierra 18-1998-1 Exhaust Manifold fit? The Sierra 18-1998-1 fits Crusader 302 and 351 CID engines and Interceptor 221, 260, and 289 CID engines. It is also listed for Commander, Mercury, OMC, Palmer, Pleasurecraft, and Waukesha applications. Verify your specific engine application before ordering.
• Can the Sierra 18-1998-1 Exhaust Manifold be installed on either side of the engine? Yes. The Sierra 18-1998-1 is designed to fit both port and starboard sides. Its universal center riser configuration allows the manifold to be used on either side of a compatible Ford V8 engine application.
• What is included with the Sierra 18-1998-1 Exhaust Manifold? The Sierra 18-1998-1 includes an 18-4363 exhaust elbow mounting package, exhaust elbow gasket 18-2854-1, exhaust manifold gasket 18-0183-1, and pipe plug 18-4258.
• What components can be used with the Sierra 18-1998-1 Exhaust Manifold? The Sierra 18-1998-1 can be used with specified exhaust manifold gasket 18-0183, gasket set 18-0603, mounting kit 18-8538, risers 18-1907 and 18-1939, elbow 18-1999, manifold spacer 18-1949, exhaust elbow mounting package 18-4363, and fuel elbow 18-8112.
• What exhaust manifolds does the Sierra 18-1998-1 replace? The Sierra 18-1998-1 is interchangeable with Barr FM-1-83 and FM183, GLM 56250, Mallory 9-40111, Osco FL994 and FLCR818, and HGE 1-81. Verify the existing manifold and engine application before using an interchangeable part number.