Yamaha - Driven Gear Engine Gear Component 6C5-11537-00-00. Overview. When internal gears start wearing out, you'll usually hear it before anything else-whine, chatter, or just a rough feel under load. This driven gear plays a key role in transferring motion through the engine, and when it's not right, it puts stress on everything around it. I've seen small gear wear turn into bigger issues if it's ignored too long. Keeping this piece in good shape helps the engine stay smooth and dependable.. Key Features. • Efficient Power Transfer - Helps transmit motion smoothly through the engine system.. • Precision Gear Teeth - Designed for clean engagement and reduced internal wear.. • OEM Fit Accuracy - Matches Yamaha factory specs for proper alignment and operation.. • High Strength Construction - Built to handle continuous load and engine stress.. Engine & Boat Compatibility. Verify compatibility with your specific Yamaha outboard model and part number before installation.. FAQs. Q1: What ar