Yamaha - Knee Gear 1 Steering & Trim Linkage Component 6E7-42141-00-94. Overview. When you're working around the swivel or steering bracket area, you start to see how these smaller gears play a big role in movement and control. I've seen worn knee gears cause slop or uneven motion that makes the motor feel off when trimming or steering. It's one of those parts you don't notice until things stop feeling tight. When it's in good shape, everything moves smoothly and stays aligned like it should.. Key Features. • Smooth Mechanical Engagement - Supports consistent movement within the steering or trim linkage system.• Durable Gear Construction - Built to handle repeated motion and load over time.• Stable Alignment Support - Helps maintain proper positioning of connected components.• Reliable Wear Resistance - Designed for long-term performance in moving assemblies.• Exact Yamaha Fitment - Matches factory specifications for proper installation and function.. Engine & Boat Compatibility. Desig