Sierra Exhaust Bellows 18-2764, Replaces OMC 911826, Fits All Cobra Sterndrive Models

The Sierra 18-2764 is an exhaust bellows built as a direct replacement for OMC part number 911826, designed to fit all Cobra sterndrive models. The exhaust bellows is a core component of the sterndrive's exhaust bellows and transom seal system, and a worn or cracked bellows is a common point of failure that boat owners replace to keep the exhaust path sealed and functioning correctly. Sierra manufactures this bellows to match the fit and function of the original OMC component, giving Cobra sterndrive owners a straightforward like-for-like replacement.

This bellows has a machined exterior finish and measures 3.5 x 3.5 x 7.5 inches, weighing 0.96 pounds. It is sold as a standalone replacement part, ready to install in place of a failed or deteriorated original bellows on applicable Cobra sterndrive units.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-2764
• Category: OMC Bellows & Transom Seal
• Dimensions: 3.5 x 3.5 x 7.5 inches
• Weight: 0.96 pounds
• Finish: Machined
• UPC: 030999313041
• OEM Cross Reference: 911826
• Fitment: All Cobra sterndrive models

Fitment

• All Cobra sterndrive models

Replaces (OEM)

• OMC 911826

Frequently Asked Questions

What does the Sierra 18-2764 exhaust bellows fit? The Sierra 18-2764 exhaust bellows fits all Cobra sterndrive models.

What OEM part number does 18-2764 replace? It replaces OMC part number 911826, making the Sierra 18-2764 a direct cross-reference for that original component.

Is the 18-2764 exhaust bellows an OEM or aftermarket part? It is an aftermarket replacement manufactured by Sierra, built to replace the original OMC 911826 bellows on Cobra sterndrive applications.

What are the dimensions of the Sierra 18-2764 exhaust bellows? It measures 3.5 x 3.5 x 7.5 inches.

How much does the 18-2764 exhaust bellows weigh? 0.96 pounds.

What finish does the 18-2764 bellows have? It has a machined exterior finish.

What system does the 18-2764 bellows belong to? The Sierra 18-2764 is part of the exhaust bellows and transom seal system used on Cobra sterndrive units.

Does the 18-2764 fit specific model years of Cobra sterndrive? The Sierra 18-2764 is listed as fitting all Cobra sterndrive models, without a specific year restriction.

What is included when ordering the 18-2764? The order includes one Sierra 18-2764 exhaust bellows.

How does the 18-2764 differ from the Sierra 18-1074 exhaust bellows? The Sierra 18-1074 exhaust bellows replaces OMC 914036 and is designated for clutch dog Cobra models (1986-93), while the 18-2764 replaces OMC 911826 and fits all Cobra sterndrive models, making them distinct SKUs for different applications.

What is the UPC for the Sierra 18-2764 exhaust bellows? The UPC is 030999313041.