Sierra 118-6406 Marine U-Joint Assembly for MerCruiser Stern Drives

The Sierra 118-6406 is a marine-grade universal joint assembly designed for MerCruiser stern drive systems. This precision-engineered U-joint provides reliable power transfer between the engine and the drive unit in demanding marine environments.

Key Features:

• GKN new style design with external clips for secure installation
• Non-corrosive materials engineered to withstand harsh marine conditions
• 0.078-inch bore diameter for precise fitment
• Cross and bearing assembly ensures smooth power transmission
• Manufactured to meet or exceed OEM specifications

OEM Cross-References: Replaces Mercury Marine 865493A01, 865496A01, 865496A02, 865510T, 865511T, Volvo Penta 3860232, and Mallory 9-72413.

Sierra provides premium-quality aftermarket marine parts engineered for reliability and durability in saltwater and freshwater applications. Each component is rigorously tested to ensure long-lasting performance.