Sierra Exhaust Elbow Gasket 18-0309-1, Replaces OE 96562, Fits Exhaust Elbows 18-1928, 18-1934 & 18-1918

The Sierra 18-0309-1 is an exhaust elbow gasket designed for marine inboard cooling and exhaust systems, sealing the connection at the exhaust elbow to prevent exhaust and water leaks. It is used with Exhaust Elbows 18-1928, 18-1934, and 18-1918, and is also referenced as the elbow gasket for the Sierra 18-1927 4 inch riser and 18-1916 8 inch riser assemblies, which are in turn used with manifolds 18-1933 and 18-1929. This gasket directly replaces OE number 96562, making it a straightforward drop-in for boat owners servicing their exhaust elbow or riser connections.

A proper gasket seal at this joint is important for preventing raw water or exhaust leaks into the bilge or engine compartment, so replacing a worn or compressed gasket whenever the elbow or riser is removed for service or replacement is standard practice. The gasket is compact, measuring 0.39 x 0.39 x 0.39 inches, and weighs 0.03 pounds.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-0309-1
• Product Type: Exhaust Elbow Gasket
• Dimensions: 0.39 x 0.39 x 0.39 inches
• Weight: 0.03 pounds
• OEM Cross Reference: 96562

Fitment

• Use with Exhaust Elbows: 18-1928, 18-1934, 18-1918
• Also used as the elbow gasket with Riser 18-1927 (4 inch) and Riser 18-1916 (8 inch)
• Risers 18-1927 and 18-1916 are used with Manifolds 18-1933 and 18-1929

Replaces (OEM)

• 96562

Frequently Asked Questions

What exhaust elbows fit the Sierra 18-0309-1 gasket? The 18-0309-1 gasket is used with Exhaust Elbows 18-1928, 18-1934, and 18-1918.

Does 18-0309-1 replace OEM part number 96562? Yes, Sierra 18-0309-1 is a direct replacement for OEM number 96562.

What are the dimensions of this gasket? The 18-0309-1 exhaust elbow gasket measures 0.39 x 0.39 x 0.39 inches.

How much does the 18-0309-1 gasket weigh? It weighs 0.03 pounds.

Can this gasket be used with an exhaust riser instead of an elbow? Yes, the 18-0309-1 gasket is also specified for use with the Sierra 18-1927 4 inch riser and the 18-1916 8 inch riser.

What manifolds are compatible with the risers that use this gasket? The 18-1927 and 18-1916 risers, which use the 18-0309-1 gasket, are designed for use with Manifolds 18-1933 and 18-1929.

Is the Sierra 18-0309-1 a genuine Sierra part? Yes, 18-0309-1 is manufactured and sold under the Sierra brand as a replacement exhaust elbow gasket.

What is included when ordering 18-0309-1? Ordering 18-0309-1 includes one exhaust elbow gasket.

When should the exhaust elbow gasket be replaced? The 18-0309-1 gasket should be replaced any time the exhaust elbow or riser it seals is removed, since a compressed or worn gasket at this joint can lead to exhaust or water leaks.

Will 18-0309-1 fit manifolds 18-1933 or 18-1929 directly? The 18-0309-1 gasket is not listed as a direct manifold gasket; it is used with the exhaust elbows and risers that connect to Manifolds 18-1933 and 18-1929.