Mercury Precision Parts 300 Hour Maintenance Kit 8M0207808 contains all the parts you need to complete a 300-hour service on Mercury 5.7L V10 350-425hp Verado and 350hp SeaPro with 6.4100mm gearcase outboards (3B266064 & up) in one convenient package
For use on 5.7L V10 350-425hp Verado and 350hp SeaPro (serial No. 3B266064 & up) with 163mm gearcase