Yamaha MAR-MTRCV-F4-2L Motor Cover - 4.2L Offshore Outboards Genuine OEM Yamaha part. Yamaha OEM Motor Covers provide super heavy-duty protection for your Yamaha outboards cowling. It is constructed of ultra-durable Sur Last solution-dyed polyester fabric for the ultimate protection against the elements. This non-abrasive, water resistant cover is resistant to UV, mildew, and mold. The cover has a soft fabric liner for added paint protection, and a screened-on factory logo for unmatched style. F