This genuine Mercury Precision Parts Verado Oil Filter 877769K01 provides outstanding filtering protection and factory fit for Mercury L6 200-350hp Verado and Mercury L6 Racing 400R outboards.Product Details Manufacturer part number: 35-877769K01 Fits Mercury in-line 6 (L6) 200-350hp Verado outboards and Mercury L6 Racing 400R outboards Superior M-Pleated cleansing filter media removes oil contaminants Anti-drain back valve helps ensure start-up lubrication and eliminates dry starts Heavy-duty housing with durable galvanized finish Easy-to-install screw-on style filter Mercury parts and accessories are backed by decades of experience in engineering, testing and manufacturing to provide the best fit, function and performance Thread Size: 24mm x 1.5 Spin on oil filter fits 200/225/250/275/300/350/400R Hp Verado In-line 6 cylinder outboard engines.