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Outboard Engine Pistons

As a professional piston manufacturer, Zhengji provides high-performance outboard engine pistons for marine power systems. Outboard engines often operate in harsh environments such as high speeds, high humidity, and salt spray corrosion. Therefore, the pistons must meet extremely stringent requirements for wear resistance, corrosion resistance, and heat dissipation.
Zhengji's outboard engine pistons are made from high-quality aluminum alloy, combined with advanced casting and forging processes, supplemented by precision machining and surface treatment, to ensure stable strength and sealing performance under high temperatures and pressures. Our optimized structural design effectively improves combustion efficiency and power output while extending engine life.
These pistons are suitable for outboard engines of various brands and horsepower ranges, providing a reliable and durable power core for fishing, recreational boats, and commercial shipping. Zhengji consistently relies on precision manufacturing and strict quality control to provide customers with durable and high-performance outboard engine solutions.

About
Ruian Zhengji Motorcycle Parts Co., Ltd.

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.

Certificate Of Honor
  • A Mechanical Processing Auxiliary Device for Engine Piston Pins
  • A Positioning Structure for Engine Piston Machining
  • A Grinding Apparatus For Processing Piston Rods
  • A Cooling Device For Moulds Used In Piston Machining Production
  • Zhejiang Province Science and Technology-Based Small and Medium-Sized Enterprise Certificate
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