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Sierra 18-1992-1 80-Degree Marine Exhaust Elbow Adapter for 3" I.D. Exhaust Hose

Manufacturer

Sierra

<h3>Sierra: Six Decades of Marine Aftermarket Excellence</h3><p><strong>Sierra</strong> has spent nearly 60 years earning its reputation as one of the most trusted names in the marine aftermarket industry. Originally focused on engine and drive components for boats, the brand has grown into a comprehensive source for nearly everything a boater needs to keep their vessel running at its best — from precision instrumentation to complete engine rebuild hardware.</p><p>Now operating as a brand of Dometic, Sierra manages global aftermarket distribution from a 300,000 sq. ft. facility in Litchfield, Illinois. The Sierra brand today encompasses not only its flagship marine parts line but also well-established marine names like Shields and Moeller, offering boaters a broader catalog than ever before. Whether you own an outboard, inboard, or sterndrive, Sierra's engineering team designs products to meet or exceed OEM specifications.</p><h3>Precision Instrumentation You Can Trust on the Water</h3><p>One of Sierra's most recognized product areas is its marine instrumentation lineup. The brand's <a href="/7570-sierra-gauge-set-1480">gauge sets</a> cover everything from classic analog instrument clusters to advanced digital multi-function displays. Sierra offers packages suited to outboards, sterndrives, and gasoline-powered inboards, with options ranging from coordinated analog kits in styles like Arctic, Eclipse, and Amega to modern touchscreen solutions like the R3 multi-function gauge. Features such as scratch-resistant domed glass lenses, silicone-dampened pointers, and perimeter backlighting make these instruments highly readable in all conditions.</p><p>Behind every accurate gauge reading is a properly calibrated sending circuit. Sierra's <a href="/7570-sierra-gauge-resistor-47908">gauge resistors</a> are a critical part of that chain, ensuring the signals from sensors and sending units are correctly interpreted by your instruments. These components are built to marine-grade standards to resist moisture, vibration, and corrosion — the realities of life on the water.</p><h3>Engine Internals Built to OEM Standards</h3><p>Sierra's history in marine power is perhaps best demonstrated by its deep catalog of engine components. The brand's <a href="/7570-sierra-engine-gasket-set-5404">engine gasket sets</a> cover a wide range of outboard and inboard applications and are engineered to deliver reliable seals in the demanding thermal and chemical environment of a marine engine. For boaters performing seasonal overhauls, top-end rebuilds, or full engine restorations, Sierra gasket kits are a go-to resource trusted by professional marine technicians and DIY boaters alike.</p><h3>A Complete Marine Parts Partner</h3><p>Beyond instrumentation and engine internals, Sierra's catalog spans fuel systems, electrical supplies, steering components, shore power, and more — all covered by what the brand calls an industry-leading warranty. Sierra also maintains a comprehensive parts-finder tool that enables cross-referencing with OEM part numbers from major manufacturers including Mercury, Yamaha, Suzuki, Volvo Penta, and others, making it straightforward to find the right replacement part for virtually any application.</p>

Part Number

18-1992-1
09/12/2036 7:03 AM
Sale Price

$267.49

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Product Details

The Sierra 18-1992-1 Exhaust Elbow Adapter is an 80-degree cast iron elbow designed to solve challenging marine exhaust routing situations. When an exhaust run requires a sharp turn to route around other engine room components, this adapter provides a clean solution without sacrificing flow volume or performance.

Engineered for use with 3" I.D. exhaust hose, this elbow provides an 80° bend that maintains a constant slope throughout the exhaust run. The geometry of the elbow achieves the required directional change without constricting the interior volume of the hose, helping preserve proper exhaust flow and backpressure characteristics.

Key Features:

  • 80-degree bend for sharp exhaust routing changes
  • Designed for use with 3" I.D. marine exhaust hose
  • Compatible with the 18-1987 Exhaust Manifold Conversion Kit
  • Replaces Barr part number 200087P
  • Includes four stainless steel hose clamps for a complete, out-of-the-box installation
  • Meets or exceeds OEM specifications

The Sierra 18-1992-1 is a direct replacement for Barr 200087P and is built to Sierra's standard of meeting or exceeding the original equipment part it replaces. Four stainless steel hose clamps are included, making this a complete installation-ready solution for inboard marine exhaust systems.

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