Yamaha - Oil Pipe Assembly 2 Lubrication System Component 6S5-13406-00-00. Overview. Oil pipes are one of those parts you don't want to take chances with. I've seen engines take serious wear just because oil wasn't getting where it needed to go. When the pipe is clean, sealed, and flowing right, the motor stays protected and runs smoother over time. It's a simple piece, but it plays a big role in keeping everything alive inside the engine.. Key Features. • Consistent Oil Delivery - Ensures steady lubrication flow to critical engine components.• OEM Routing and Fitment - Designed to match factory layout for proper installation and alignment.• Leak-Resistant Design - Helps prevent oil loss and maintains system pressure.• Durable Construction - Built to handle heat, vibration, and long-term engine use.. Engine & Boat Compatibility. Designed for Yamaha outboard engines utilizing oil injection or internal lubrication systems. Commonly used across a range of Yamaha outboards where consistent