ITEM NAME:316 Stainless Steel Piston & Rings Assy for Yamaha 4 Stroke 4HP 5HP 6HP Description: Brand New and High Quality Marine Outboard Piston Assy Ring Set Fits for Yamaha 4 Stroke 4HP 5HP 6HP Outboard Engine. Including precision piston, piston pin, piston ring and circlip. Made of heavy duty stainless steel, solidly and durable. Handy and useful tools. Specification: Dimension of piston (Diam. x H): Approx. 60 x 3.9 cm/23.62 x 1.54 inch Dimension piston pin (Diam x L): Approx. 1 x 4.9 cm/0.39 x 1.93 inch Material: Stainless Steel Package Includes: 1 Set Piston & Ring Assy SKU: DMO0000381867005568.(Fits for Yamaha 4 Stroke 4HP 5HP 6HP Outboard Engine. Including precision piston, piston pin, piston ring and circlip. 1 Set Piston & Ring Assy. x H): Approx. Made of heavy duty stainless steel, solidly and durable.