Sierra Engine Coupler for MerCruiser Stern Drives

The Sierra Engine Coupler is a replacement engine coupler for MerCruiser stern drive applications. It is also called a drive coupler or engine-to-drive coupling. It connects the engine crankshaft or flywheel to the drive shaft. It transfers power from the engine to the stern drive and absorbs some of the vibration and shock from the driveline.

Key Features:

• Aftermarket replacement engine coupler built for marine stern drive use
• Splined design that engages the engine and drive shaft for consistent power transfer
• Helps dampen driveline vibration and shock for smoother operation
• Made for marine conditions, with materials and construction that hold up to heat, load and moisture
• Offered in multiple variants to cover different MerCruiser engine and drive configurations

Sierra is a well-known marine brand with a broad catalog of replacement engine, drive and electrical parts for inboard, stern drive and outboard engines. Choose the variant that matches your engine and drive setup to restore reliable power delivery.