| OEM | 61N-11631-00 |
| Vehicle Type/Engine Model | Y30HP |
| Cylinder Diameter | 72mm |
With the continuous advancement of technology, the application of new materials ...
READ MORE| OEM | 61N-11631-00 |
| Vehicle Type/Engine Model | Y30HP |
| Cylinder Diameter | 72mm |
| OEM | 6F6-11631-00 |
| Vehicle Type/Engine Model | 40HP E40G'19(6F6K-1118772) E40J'19(6J4K-1075549) |
| Cylinder Diameter | 78mm |
| OEM | 6L2-11631-00-97 |
| Vehicle Type/Engine Model | 6L2 |
| Cylinder Diameter | 67mm |
| OEM | 664-11631-01 |
| Vehicle Type/Engine Model | Y25HP |
| Cylinder Diameter | 67mm |
| OEM | 677-11631-00 |
| Vehicle Type/Engine Model | 8HP |
| Cylinder Diameter | 50mm |
| OEM | 6E0-11631-00-98 |
| Vehicle Type/Engine Model | Yamaha 4/5HP |
| Cylinder Diameter | 50mm |
| OEM | 6G1-11631 (plug) 6G1-11603-00-00 (ring) |
| Vehicle Type/Engine Model | Yamaha 6/8HP |
| Cylinder Diameter | 50mm |
| OEM | 6E3-11631-00-98 |
| Vehicle Type/Engine Model | Yamaha 5HP (same appearance as Suzuki 8HP) |
| Cylinder Diameter | 54mm |
Our outboard engine pistons, designed for Yamaha engines, are constructed from high-strength aluminum alloy and feature advanced heat treatment, resulting in a lightweight design with high-temperature resistance. Precision machining and surface treatment ensure precise piston dimensions and excellent wear resistance, maintaining efficient combustion and stable power output. Whether used in leisure boating, fishing, or long-distance ocean voyages, these pistons provide reliable power and extend engine life.
Ruian Zhengji Motorcycle Parts Co., Ltd. is a specialized manufacturer engaged in the research, development, production, and sales of pistons for automobiles, motorcycles, and outboard engines. In addition to offering standard piston products, we focus on the development of motorcycle modification parts and customized products to meet the diverse needs of our customers.
We possess a complete production chain from blank casting to finished piston manufacturing, equipped with over 200 advanced production machines, including more than 80 high-precision CNC lathes. During the piston manufacturing process, we employ both casting and forging techniques to ensure durability and performance. The forging process provides pistons with greater strength and wear resistance, while the casting process offers higher production efficiency and flexibility.
Ruian Zhengji Motorcycle Parts Co., Ltd. is a specialized manufacturer engaged in the research, development, production, and sales of pistons for automobiles, motorcycles, and outboard engines.
Cell phone:+86-18858762999 / +86-18858760666
Landline:+86-0577-65108168 / +86-0577-65106111
Fax:+86-0577-65508599
WeChat:+86-18858760666
Email:jinzixiong1999@163.com
Add:No. 21, Jinfeng Road, Cenqi, Tingtian Town, Ruian City, Zhejiang Province, China





