Fuel & Fuel Systems | Mercury Marine 6-Cylinder Verado Fuel Filter Inspection and Maintenance This step by step how-to-video will walk you through the process of inspecting and maintaining the fuel filter on your 6-cylinder Mercury Verado engine. The Verado outboard is equipped with two fuel filters. Watch here to learn the maintenance schedule for each filter and maintenance tips. Amazon: mercury 4 stroke fuel filter - New Euros 5Pcs Fuel Filter Fit For 4 Stroke Yamaha Mercury Outboard Motor 68V-24563-00-00 881540. 3.3 out of 5 stars 12. $18 $ 18. 99. FREE Shipping. More Buying Choices $17 (2 new offers) Quicksilver 816296Q03 In-Line Fuel Filter Element - Mercury and Mariner Outboards.