Product DetailsSierra 18-8529 marine exhaust elbow mounting kit. Used with: 18-1970-1 riser, For: Mercruiser GM V-6 229 & 262 cu. in. (models 185 & 205), For: GM Small Block V-8 305-350 cu. in. (models 200, 228, 230, 260 & 898), For: GM Big Block V-8 454 cu. in. (models 330, 340 & 7.4L). Replaces: GLM 53300, Mallory 9-40580, Osco 8503A-MK.
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.