Sierra 18-1876 Marine Exhaust Elbow Riser for OMC Stern Drive Engines

The Sierra 18-1876 is a cast iron marine exhaust elbow riser engineered as a direct OEM replacement for OMC stern drive engines. Designed to meet or exceed original equipment specifications, this riser is built to withstand the demanding conditions of the marine environment and delivers reliable, long-lasting performance.

Sierra manifolds and risers are painted, packaged, and leak-tested before leaving the factory, ensuring a quality-assured component that installs correctly right out of the box. The black-painted cast iron body resists corrosion and stands up to the heat and moisture exposure common in marine exhaust systems.

Key Features:

• Cast iron construction for maximum durability and longevity
• Black painted finish for corrosion resistance
• Factory painted, packaged, and leak-tested for quality assurance
• Designed for use with 3-1/2" I.D. exhaust hose
• Compatible with Sierra 18-1904 Manifold
• Use with Sierra 18-2850 Manifold End Cap Gasket
• Engineered to meet or exceed OEM specifications

Backed by Sierra's decades of marine parts expertise, the 18-1876 riser is a trusted replacement for OMC stern drive applications, helping keep your exhaust system sealed, safe, and performing at its best.