| OEM | 2JG-11631-00 |
| Vehicle Type/Engine Model | Y100 |
| Cylinder Diameter | 50mm |
| Pin Hole | 14mm |
Marine engines run hard. Full throttle for hours. Saltwater spray. Constant load. The piston inside that outboard motor ...
READ MORE| OEM | 2JG-11631-00 |
| Vehicle Type/Engine Model | Y100 |
| Cylinder Diameter | 50mm |
| Pin Hole | 14mm |
| OEM | 3YR-11630-00 |
| Vehicle Type/Engine Model | Y110 |
| Cylinder Diameter | 52mm |
| Pin Hole | 14mm |
| OEM | 4VP-11631-00 |
| Vehicle Type/Engine Model | 4VP |
| Cylinder Diameter | 52mm |
| Pin Hole | 14mm |
| OEM | 4X8-11631-00 |
| Vehicle Type/Engine Model | RX115 |
| Cylinder Diameter | 54mm |
| Pin Hole | 14mm |
| OEM | 2YM-11631-00 |
| Vehicle Type/Engine Model | XC125 |
| Cylinder Diameter | 49mm |
| Pin Hole | 13mm |
| OEM | 479-11631-00 |
| Vehicle Type/Engine Model | RS125 |
| Cylinder Diameter | 56mm |
| Pin Hole | 16mm |
| OEM | 18L-11631-00 |
| Vehicle Type/Engine Model | DT175 |
| Cylinder Diameter | 66mm |
| Pin Hole | 16mm |
| OEM | 18G-11631-00 |
| Vehicle Type/Engine Model | DT125 |
| Cylinder Diameter | 56mm |
| Pin Hole | 16mm |
| OEM | 4Y2-11631-00 |
| Vehicle Type/Engine Model | RX135 |
| Cylinder Diameter | 58mm |
| Pin Hole | 16mm |
| OEM | 4LS-11631-00 |
| Vehicle Type/Engine Model | YMH125 |
| Cylinder Diameter | 54mm |
| Pin Hole | 15mm |
| OEM | 55G-11631-00 |
| Vehicle Type/Engine Model | RXZ |
| Cylinder Diameter | 56mm |
| Pin Hole | 16mm |
| OEM | 4ST-11631-00 |
| Vehicle Type/Engine Model | CRYPTON |
| Cylinder Diameter | 49mm |
| Pin Hole | 13mm |
Zhengji specializes in the production of motorcycle pistons for a variety of popular Yamaha models, including street bikes, scooters, and racing series. Utilizing high-strength aluminum alloys and advanced manufacturing techniques, these pistons offer excellent heat and wear resistance, as well as lightweight features, ensuring stable engine output even at high rpm and over long distances. Whether for daily commuting maintenance, hot model modifications, or high-performance racing, Zhengji motorcycle pistons provide reliable engine power.
Ruian Zhengji Motorcycle Parts Co., Ltd. is a custom Motorcycle Pistons for Yamaha Series manufacturer and OEM Motorcycle Pistons for Yamaha Series factory, specializing 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.
Marine engines run hard. Full throttle for hours. Saltwater spray. Constant load. The piston inside that outboard motor ...
READ MORELook inside any performance engine build—race car, off-road truck, or custom motorcycle. The pistons aren't factory stoc...
READ MOREMarine engines run under conditions that would kill a car engine. Full throttle for hours. Saltwater spray in the air. C...
READ MOREThere's something about Honda motorcycles. They just keep running. Part of that reputation comes from the pistons inside...
READ MORERuian 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





