Sierra "18-1974-1 Riser with 0 3"" OD Nipple for V6, V8 Applications"
Sierra "18-1974-1 Riser with 0 3"" OD Nipple for V6, V8 Applications". Replace corroded or freeze damaged exhaust risers right out of the box. Sierra parts are engineered to meet or exceed the specifications of marine engine manufacturers and have gained the confidence of the marine industry. Sierra risers include all you will need to for a quick installation. Each riser is an exact OEM match and is leak tested for quality assurance. Mating surfaces are CNC machined to provide the best possible seal without additional preparation. Precision castings feature uniform wall thickness and are primed and painted to stand up to the marine environment. Look no further than a Sierra riser for a quick out of the box installation. Key Features Meets or exceeds manufacturer specifications Machined mating surfaces allow installation without additional preparation Each riser features uniform wall thickness and is leak tested for quality assurance Pre-painted to stand up to marine environment Risers can be used on port or starboard side Compatible with GM based MerCruiser marine engines 230: 1981—1986 260: 1981—1986 340: 1981—1992 7.4L 1981—1992 Includes exhaust elbow gasket (Sierra p/n 18-0897) for quick installation Backed by SeaStar Solutions Limited Two-Year Warranty 18-1974-1 Application Guide ApplicationOEM Part NumbersBarrMC-20-98502GLM51192Mallory9-40554Mercruiser Stern Drive98502A2Osco8502The Sierra Engine Parts SelectorIn addition to exhaust risers, we offer a wide variety of other engine parts manufactured by Sierra. To see if we have the part you need, see ourEngine Parts Selector, where you can search by engine make, serial number and model or year of manufacture.
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