Yamaha - Cover, oil pump - YF1-52713-51-30Yamaha Oil Pump Cover Engine Protection Component YF1 52713 51 30 Overview When youre inside a Yamaha engine, protecting the small but critical components is just as important as maintaining them. Ive seen oil pump areas get compromised from debris or improper sealing, and it doesnt take much to cause bigger issues down the line. The Yamaha Oil Pump Cover YF1 52713 51 30 helps keep that section sealed and protected so everything inside can do its job.