Sierra Exhaust Elbow Mounting Kit 18-8555 for Manifold Spacer 18-1908 with Riser 18-1976-2

The Sierra Exhaust Elbow Mounting Kit, part number 18-8555, is a hardware kit designed for mounting an exhaust elbow to a manifold spacer on inboard and sterndrive marine exhaust systems. This kit is built for use with Manifold Spacer 18-1908 paired with Riser 18-1976-2, and it is also included as a component within kit 18-1908K for buyers assembling or servicing that larger configuration.

Inside the kit you get (1) each of two elbow gaskets: 18-2849-1 and 18-0897. These gaskets seal the mating surfaces between the exhaust elbow, manifold spacer, and riser, helping maintain a proper seal against exhaust leaks and water intrusion at the joint. Using the correct gasket set for your specific manifold spacer and riser combination is important, since Sierra offers several similar mounting kits paired with different spacer and riser part numbers.

This kit is intended for boat owners and marine technicians replacing worn or damaged elbow gaskets during routine exhaust system maintenance, or assembling a manifold spacer and riser setup from individual components. Always confirm your existing manifold spacer and riser part numbers before ordering to ensure kit 18-8555 is the correct match for your application.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-8555
• Product Type: Mounting Kit
• Compatible Manifold Spacer: 18-1908
• Compatible Riser: 18-1976-2
• Included In Kit: 18-1908K
• Kit Contents: (1) 18-2849-1 and 18-0897 elbow gaskets
• UPC: 808282145606
• Weight: 1.25 pounds
• Product Dimensions: 0.98 x 0.98 x 0.98 inches

Fitment

• Use with Manifold Spacer 18-1908 paired with Riser 18-1976-2
• Included as a component within kit 18-1908K

Frequently Asked Questions

What is included in the Sierra 18-8555 Exhaust Elbow Mounting Kit? Kit 18-8555 includes one each of two elbow gaskets, part numbers 18-2849-1 and 18-0897, used to seal the exhaust elbow mounting joint.

What manifold spacer and riser does 18-8555 work with? The 18-8555 kit is designed for use with Manifold Spacer 18-1908 paired with Riser 18-1976-2.

Is 18-8555 sold as part of a larger kit? Yes, the 18-8555 mounting kit is also included as a component within the larger 18-1908K kit.

How much does the Sierra 18-8555 mounting kit weigh? The Sierra 18-8555 Exhaust Elbow Mounting Kit weighs 1.25 pounds.

What are the dimensions of the 18-8555 kit packaging? The 18-8555 kit measures 0.98 x 0.98 x 0.98 inches.

What brand makes part number 18-8555? Part number 18-8555 is manufactured by Sierra as an Exhaust Elbow Mounting Kit.

Does the 18-8555 kit include mounting hardware or only gaskets? The 18-8555 kit's documented contents are the two elbow gaskets, 18-2849-1 and 18-0897, used at the mounting joint.

How do I know if 18-8555 is the correct kit for my boat? Confirm that your exhaust system uses Manifold Spacer 18-1908 with Riser 18-1976-2, or that you are assembling kit 18-1908K, before ordering the 18-8555 mounting kit.

What is the UPC for the Sierra 18-8555 kit? The UPC for the Sierra Exhaust Elbow Mounting Kit 18-8555 is 808282145606.

Can the gaskets in kit 18-8555 be purchased separately? The 18-8555 kit bundles gaskets 18-2849-1 and 18-0897 together for the 18-1908 spacer and 18-1976-2 riser application rather than as individual replacement items.