Yamaha - Oil Filter Cap Lubrication System Component YA2-80636-02-A1. Overview. Oil changes are routine, but the small parts around them matter more than most people think. I've seen engines leak or lose pressure just because the filter cap wasn't sealing right. The Yamaha Oil Filter Cap YA2-80636-02-A1 keeps the filter secured and the oil system sealed the way it should be. It's a simple part, but it plays a big role in protecting your engine over time.. Key Features. • Secure Oil Filter Retention - Holds the oil filter firmly in place during operation.. • Yamaha Precision Fit - Designed to match factory threads and sealing surfaces.. • Maintains Proper Oil Sealing - Helps prevent leaks and pressure loss in the system.. • Durable Engine-Ready Build - Built to handle heat, pressure, and repeated service intervals.. • Easy Service Access - Allows straightforward removal and installation during maintenance.. Engine & Boat Compatibility. The Yamaha Oil Filter Cap YA2-80636-02-A1 is design