Yamaha - Oil Pan Engine Lubrication System 6EK-15311-00-CA. Overview. Oil pans don't get much attention until you've got a leak or you're chasing down low oil levels. I've worked on enough Yamaha engines to know this is one of those parts that quietly does its job-until it doesn't. Sitting at the bottom of the motor, it takes heat, vibration, and whatever conditions you're running in. When it's sealed up right, you don't think about it-and that's exactly how it should be.. Key Features. • Secure Oil Containment - Holds engine oil properly to support consistent lubrication.• Stable Mounting Design - Aligns with engine components for a tight and reliable installation.• Durable Metal Construction - Built to handle heat cycles and long-term engine operation.• Leak-Resistant Sealing Surface - Designed to work with gaskets for dependable oil retention.• Direct Yamaha Replacement - Matches factory specifications for proper fit and function.. Engine & Boat Compatibility. Designed for Yamaha ou