Total Price:
Add to CartFits Port and Starboard Sides. Universal Center Riser Manifold.
Fits:
Includes:
Use With:
Interchangeable With:
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.
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
Sierra 18-1997-1 Universal Center Riser Exhaust Manifold This Sierra is a universal exhaust manifold for engines with center risers. Constructed from cast iron for maximum durability, this manifold...
Sierra 18-1909-1 Center Rise Manifold 4" Outlet Riser Special Order est. 10 Days. Fits many GM & Ford center rise manifolds. Features: Material: Cast Iron 4" outlet 7° Interchangeable...
Sierra 18-0183-1 Exhaust Manifold Gasket for Mercruiser, OMC Sierra Exhaust Manifold Gasket for use on Mercruiser and OMC Stern Drives. Fits MCM/MIE Ford V-8 engines Use With: 18-1996...
Sierra 18-2991-1 Exhaust Manifold Gasket Sierra high-quality engine parts are designed to meet OEM specifications. s/s from Sierra part #18-2991 Use With: 18-1930-1 Manifold Interchangeable...
