Sierra Exhaust Elbow Gasket 18-0475-1, Replaces 98127, Open Style for Crusader Exhaust Riser 18-1938

The Sierra Exhaust Elbow Gasket 18-0475-1 is an open-style gasket designed for use with a universal exhaust elbow in Crusader inboard exhaust manifold cooling systems. It is engineered to work with Sierra Riser 18-1938, forming a reliable seal at the riser-to-elbow connection where exhaust heat and cooling water both pass through the joint. As an open gasket, it is cut to allow full flow through the elbow passage rather than restricting it, matching the design of the universal elbow it is paired with.

This gasket is also used as part of the Sierra Mounting Kit 18-8547, which is built for use with Riser 18-1938 and includes the 18-0475-1 gasket as a component. Keeping a properly fitted gasket at this joint helps maintain a tight seal in the exhaust cooling system and supports consistent performance of the riser and elbow assembly during service or replacement.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-0475-1
• Product Type: Exhaust Elbow Gasket
• Style: Open (universal elbow)
• Used With: Riser 18-1938
• Also Included In: Mounting Kit 18-8547
• OEM Cross Reference: 98127
• UPC: 808282365806
• Weight: 0.1 pounds
• Application: Crusader exhaust manifold cooling system

Fitment

Used with Crusader inboard exhaust manifold cooling systems, specifically with Riser 18-1938 and Mounting Kit 18-8547.

Replaces (OEM)

• 98127

Frequently Asked Questions

What is the Sierra 18-0475-1 gasket used for? The Sierra 18-0475-1 is an open-style exhaust elbow gasket used in Crusader inboard exhaust manifold cooling systems, sealing the joint where the exhaust elbow meets the riser.

What OEM number does the 18-0475-1 gasket replace? The 18-0475-1 gasket cross-references to OEM number 98127.

How much does the 18-0475-1 gasket weigh? The Sierra 18-0475-1 exhaust elbow gasket weighs 0.1 pounds.

What riser does the 18-0475-1 gasket fit? This gasket, part number 18-0475-1, is designed for use with Sierra Riser 18-1938.

Is the 18-0475-1 gasket included in any kits? Yes, the 18-0475-1 gasket is included as a component in Sierra Mounting Kit 18-8547, which is used with Riser 18-1938.

What does open style mean for this elbow gasket? An open gasket, like the 18-0475-1, is cut to allow full flow through the exhaust elbow passage rather than restricting it, matching the universal elbow design it pairs with.

What is the UPC for the Sierra 18-0475-1 gasket? The UPC for the Sierra 18-0475-1 exhaust elbow gasket is 808282365806.

Does the 18-0475-1 gasket come with mounting bolts? The gasket itself, part number 18-0475-1, does not include mounting bolts; those are supplied separately in the Mounting Kit 18-8547.

What system is the 18-0475-1 gasket part of? 18-0475-1 is used in the Crusader exhaust manifold cooling system, specifically at the elbow-to-riser connection.

Can the 18-0475-1 gasket be used with any elbow? The 18-0475-1 is an open gasket designed for a universal exhaust elbow and is intended for use with Riser 18-1938.