| Customization: | Available |
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| After-sales Service: | Yes |
| Warranty: | 1 Year |
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| 1. Power Generation: The piston's primary role is to move up and down within the cylinder, compressing the air-fuel mixture and facilitating the combustion process that generates power for the outboard motor. |
| 2. Compression: During the compression stroke, the piston squeezes the air-fuel mixture in the combustion chamber, allowing for a powerful ignition when the spark plug fires. |
| 3. Energy Transfer: After combustion, the piston is forced downward, transmitting energy to the crankshaft via the connecting rod. This movement powers the crankshaft, which drives the propeller and moves the boat. |
| 4. Sealing the Combustion Chamber: The piston rings form a tight seal between the piston and the cylinder wall, preventing combustion gases from escaping and ensuring maximum power generation. |
| 5. Oil Control: The rings also scrape oil off the cylinder walls, keeping the combustion chamber free from excess oil while ensuring proper lubrication of the piston. |
| 6. Dissipating Heat: The piston helps dissipate the heat generated during combustion to prevent overheating and damage to the engine components. Proper heat management is essential for maintaining engine performance and durability. |
| 7. Oil Control: The oil control ring ensures that oil is evenly distributed along the cylinder walls, preventing excess oil from entering the combustion chamber and causing fouling or increased emissions. |
| Piston Kit STD | 2-Stroke Power |
| YAMAHA 6R5-11642-11 64D-11642-00 PISTON | 100/115/130/140/150/175/ 200/225HP |
| YAMAHA 6R5-11631-11 64D-11631-00 PISTON | 100/115/130/140/150/175/ 200/225HP |
| YAMAHA 6L1-11642-01 6R5-11642-01 PISTON | 115/130/150/175/200/225HP |
| YAMAHA 6L1-11631-01 6R5-11631-01 PISTON | 115/130/150/175/200/225HP |
| YAMAHA 6J8-11631-00 PISTON | 25/30HP |
| YAMAHA 6H4-11631-01 -2RING PISTON | 40/50HP |
| YAMAHA 6H4-11631-00 -3RING PISTON | 40/50HP |
| YAMAHA 6H3-11631-01 6K5-11631-03 PISTON | 25/50/60/70HP |
| YAMAHA 6G5-11642-00 PISTON | 115/140/150/175/200HP |
| YAMAHA 6G5-11631-00 PISTON | 115/140/150/175/200HP |
| YAMAHA 6E3-11631-00-98 PISTON | 4/5HP |
| YAMAHA 6E0-11631-00-98 PISTON | 4/5HP |
| YAMAHA 6D0-11631-02 PISTON | 200/225/250/300HP |
| YAMAHA 69L-11642-00 PISTON | 200/225/251HP |
| YAMAHA 69L-11631-00 PISTON | 200/225/250HP |
| YAMAHA 688-11631-03 6H1-11631-03 PISTON | 48/50/55/75/85HP |
| YAMAHA 682-11631-00 6E7-11631-00 PISTON | 9.9/15HP |
| YAMAHA 677-11631-00 PISTON | 5/8HP |
| YAMAHA 676-11631-00 679-11631-00 PISTON | 40HP |
| YAMAHA 66T-11631-00 PISTON | 40HP |
| YAMAHA 664-11631-01 6G0-11631-00 PISTON | 20/25HP |
| YAMAHA 644-11631-03 PISTON | 3.5/5HP |
| YAMAHA 61N-11631-00 689-11631-60 PISTON | 25/30HP |
| YAMAHA 688-11631-03 6H1-11631-03 PISTON | 48/55/75/85 |
| YAMAHA 688-11631-02 696-11631-00 PISTON | 55HP |
| YAMAHA 676-11631-60 PISTON | 40HP |
| TOHATSU 3C8-00001-3 PISTON | 40/50HP |
| TOHATSU 3B2-00001-0 PISTON | 6/8/9.8HP |
| TOHATSU 369-00001-0 PISTON | 5HP |
| TOHATSU 351-00001-1 PISTON | 9.9/15/18HP |
| TOHATSU 350-00001-1 PISTON | 9.9/15/18HP |
| TOHATSU 346-00001-1 PISTON | 25/30HP |
| TOHATSU 309-00001-0 PISTON | 2.5/3.5HP |
| SUZUKI 12111-91J01 PISTON | 4/5/6HP |
| SUZUKI 12110-96300 12110-96353 PISTON | 20/25/30HP |
| SUZUKI 12110-95516-STD PISTON | 75/85HP |
| SUZUKI 12110-94400 PISTON | 40HP |
| SUZUKI 12110-94350 PISTON | 35/40HP |
| SUZUKI 12110-93130 12110-93111 PISTON | 9.9/15HP |
| SUZUKI 12110-93120 PISTON | 9.9/15HP |
| MERCURY 785-9738-STBD PISTON | 140-200HP |
| MERCURY 785-9737-PORT PISTON | 140-200HP |
| MERCURY 783-9613A1 PISTON | 45/50/55/60HP |
| MERCURY 779-9615 2 PISTON | 40/50HP |
| MERCURY 779-9615 PISTON | 4/5HP |
| MERCURY 779-803677 PISTON | 9.9/15/18HP |
| MERCURY 776-8896A3 PISTON | 50/60/75HP |
| MERCURY 705-850026T1 705-850026T3 PISTON | 30/40/45/50/55/60HP |
| MERCURY 2720-881054T3; T10-PORT PISTON | 200/225/250HP |
| MERCURY 2704-826191T4 PISTON | 65/75/80/90/100/115/125HP |
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