ITEM NAME:Marine Boat Outboard Motor Engine Piston Accessories Part Repair Kit 2 Stroke Description: Alloy piston with piston ring, sturdy and durable. Fit for Hangkai 2-stroke 3.5HP/4.0HP/6.0HP/9.9HP/15HP/18HP and 4-stroke 3.6HP outboard motor. Easy installation, high compatible and interchangeable. Package include 1pc piston, 1pc piston pin, 2pcs lock catch. Please check the model and horsepower you need carefully before purchasing. Specification: Material: Alloy Size Chart: Size: Approx. 2 Stroke: 3.5HP: External Diameter: 4.4cm/1.73inch Piston Pin Length: 3.6 x 1cm/1.42 x 0.39inch 4.0HP: External Diameter: 4.8cm/1.89inch Piston Pin Length: 3.8 x 1.05cm/1.50 x 0.41inch 6.0HP: External Diameter: 5.5cm/2.17inch Piston Pin Length: 4.7 x 1.4cm/1.85 x 0.55inch 9.9JP: External Diameter: 5.5cm/2.17inch Piston Pin Length: 4.7 x 1.4cm/1.85 x 0.55inch 15HP: External Diameter: 5.6cm/2.20inch Piston Pin Length: 4.6 x 1.4cm/1.81 x 0.55inch 18HP: External Diameter: 5.6cm/2.20inch Piston Pin Length: 4.6 x 1.4cm/1.81 x 0.55inch 4 Stroke: 3.6HP: External Diameter: 4.34cm/1.71inch Piston Pin Length: 3.4 x 1cm/1.34 x 0.39inch Package Includes: 1 Set Outboard Motor Piston Note: Pls allow slight size error and color difference due to manual measurement and different monitors. Thanks. Enjoy the shopping and have a nice day. ☠º SKU: DMO0015100554045886.Fit for Hangkai 2-stroke 3.5HP/4.0HP/6.0HP/9.9HP/15HP/18HP and 4-stroke 3.6HP outboard motor. 1 Set Outboard Motor Piston. Alloy piston with piston ring, sturdy and durable.