Sierra 18-8535 marine exhaust elbow mounting kit (blocked). Barr, Indmar & Marine Power Ford Small Block V8 302-351 cu. in., GM Big Block V8 454 cu. in., GM Small Block V8 305-350 cu. in. : Blocked. Replaces: Mallory 9-40173, 9-40770, Osco 992-MK-FW, CRR-MK-FW.
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Sierra provides premium-quality aftermarket replacements for over 6,000 marine parts, tools, and components. Sierra products are engineered to meet or exceed OEM standards, and stand up in harsh marine environments. Every new Sierra part comes with a limited lifetime warranty that covers the useful life of the product against any defects in workmanship and materials.
