Product Overview
U-Joint Cross Bearing

Keep your MerCruiser purring like a kitten with the Sierra U-Joint Cross Bearing. This heavy-duty component is crucial for smooth and reliable power transfer from your engine to your propeller. Engineered to meet or exceed OEM specifications, this U-joint ensures a worry-free boating experience, minimizing downtime and maximizing performance. Compatible with a wide range of MerCruiser Alpha and Bravo stern drives, this U-joint is a smart investment for any boat owner prioritizing performance and longevity.
Key Features
- **Heavy-duty construction:** Built to withstand the rigors of marine environments, ensuring long-lasting performance.
- **Precise fit:** Designed to meet or exceed OEM specifications for a perfect fit and seamless integration with compatible MerCruiser stern drives.
- **Includes both straight and 90° grease fittings:** Provides easy access for lubrication, simplifying maintenance and extending the life of the U-joint.
- **Wide compatibility:** Fits Alpha I Units s/n B418819 & above, Alpha I SS, Bravo One, Two, & Three (All Ratios), Bravo One X/Two X, Three X (All Ratios), Bravo One XR/XZ (All Ratios), and more.
- **Replaces multiple part numbers:** A single solution that replaces Mercury 814819A2, GLM 28050, Redline RL9218, and Sterndrive 92-102-06K, simplifying the ordering process.
- **Enhances performance and reliability:** Ensures smooth and efficient power transfer, minimizing vibrations and maximizing propulsion efficiency.
- **Reduces downtime:** A reliable U-joint minimizes the risk of unexpected failures, keeping you on the water longer.
Specifications
The Captain's Take
After years of battling rough seas, I've learned the hard way that quality matters. That's why I trust Sierra for essential parts like this U-Joint Cross Bearing. It's built tough, fits perfectly, and delivers the reliable performance I demand. Don't compromise on your drive system – choose Sierra and enjoy peace of mind on the water.