Check the listing for details. 2x YAMAHA 2020+ F300XB F250XB 4.2L Outboard Engine Cover MAR-MTRCV-F4-20. Condition: New. Listed at 319.95 USD. YAMAHA OEM NEW 2020+ F300XB F250XB "B" MODEL 4.2L OFFSHORE V6 ENGINE COVERQTY. 2 COVERS FOR "TWIN" SET UPS FITS: F300 "B" 4.2L MODELS ONLY F300XBF250XB MAR-MTRCV-F4-20Super heavy-duty protection for your Yamaha outboard’s cowling. Constructed of ultra-durable 7oz. Sur Last solution dyed polyester fabric for the ultimate protection against fading and the elements, this non-abrasive, water-resistant cover is resistant to UV, mildew and mold. The cover has a soft fabric inner liner for added paintprotection, screened on matching factory graphics and logos, and complementing piping for unmatched style. Includes a snap-buckle strap and stretch cord for a secure fit.YAMAHA OEM NEW 2020+ F300XB F250XB "B" MODEL 4.2L OFFSHORE V6 ENGINE COVERQTY. 2 COVERS FOR "TWIN" SET UPS FITS: F300 "B" 4.2L MODELS ONLY F300XBF250XB MAR-MTRCV-F4-20Super heavy-duty protection for your Yamaha outboard’s cowling. Constructed of ultra-durable 7oz. Sur Last  solution dyed polyester fabric for the ultimate protection against fading and the elements, this non-abrasive, water-resistant cover is resistant to UV, mildew and mold. The cover has a soft fabric inner liner for added paintprotection, screened on matching factory graphics and logos, and complementing piping for unmatched style. Includes a snap-buckle strap and stretch cord for a secure fit.