Sierra 18-1939 Riser
Sierra replacement engine parts are designed to meet OEM specifications. Use with 3-1/2" I.D. exhaust hose.
Material: Cast iron
Interchangeable with:
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
Universal Exhaust Manifold with Mounting Package by Sierra For Port & Starboard Sides. Universal Center Riser Manifold. Fits: Chriscraft 283, 302, 307, and 350 CID Engines. Crusader 283 and...
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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...
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Volvo Penta 3888555 BearingGenuine OEM Volvo Penta part.Special Order Item.
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Mercury - Mercruiser 65604A12 Manifold Kit-Exh Genuine OEM Mercury-Mercruiser part. Special Order Item
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Complete exhaust manifold and riser set for Mercruiser small block GM V8 engines. Kit Includes: 2 Cast Iron Center Rise Exhaust Manifolds 2 4" Exhaust Elbows 2 manifold gaskets and 2 riser...
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Sierra 18-3599-2 Water Circulating Pump Sierra high-quality engine parts are designed to meet OEM specifications. Fits Both Standard and Counter Rotating Engines. Fits GM V-6 (s/n 1A063239 &...
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Sierra 18-1999 Exhaust Elbow Sierra cast iron replacement exhaust elbow; fits 3" I.D. exhaust hose...
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Sierra 18-2100 Heavy Duty Gimbal Bearing Sierra replacement heavy duty gimbal bearing. Sierra engine parts are manufactured to meet or exceed OEM requirements. Key Features: Link...
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Sierra 18-1978 Elbow Sierra elbow for use on V-8 inboard applications only. Use With: 18-1950-1: Manifold 18-1951-1: Manifold 18-1954-1: Manifold 18-1955-1: Manifold 18-1956-1:...
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Sierra 18-1976-2 Mercruiser Manifold Elbow Fits most Mercruiser V6 and V8 applications, 7 degree (4" O.D. Riser). Unlike automotive engines, all marine inboards have exhaust risers that feature a...
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