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About Us


SIERRA has a 58-year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry. In 2022, we expanded the scope of the SIERRA brand to include a wide range of products for the aftermarket boating business, as well as products for land-based applications.


The SIERRA brand encompasses the full SIERRA Marine product lines, as well as expansive marine brands formerly known as Shields and Moeller. The new SIERRA Brand umbrella will also include the Prime Line brand for ATV/UTV and outdoor power equipment markets, along with additional aftermarket parts and accessories for land-based applications.

A global brand

Always close to you


In all markets for land and sea, the SIERRA brand stands for time-proven aftermarket products, built with quality and backed by the industry’s leading customer support and service. We are continuously innovating new products and technologies to anticipate and solve customer needs.

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