Features: 1.Applicable Model: Piston rings set is replacement for Evinrude Outboard 85 to 300 Hp Engine, please confirm whether your model is applicable before buying. 2.OE Number: The part numbers for reference are 394930, 0384539, 0394930, 0385661, please confirm whether it is consistent with the OE you need. 3.Wear Resistant: Outboard piston rings are made of durable and wear resistant materials to ensure their stability and durability under high load conditions. 4.Premium Replacement: For retrofitting and replacing aging and damaged piston rings, and getting your engine back to optimal performance in a short time. 5.Easy Install: Piston rings are designed to be easy to install and remove, perfectly matched to your model, installation does not require professional skills. Specification: Item Type: Outboard Piston Rings_x000D_ OE: 394930, 0384539, 0394930, 0385661_x000D_ Installation Type: Replace installation_x000D_ Fitment:_x000D_ Replacement for Evinrude Johnson Outboard 85-300 Hp Bore Size 3.500 Note: Please double check the part number and fitment of your item, matching information is for reference only.