【Tricycle】- Vivian Tian        +86-186-2330-4355      VivianTian86@hotmail.com               【Spare Parts】- Hamble       +86-166-2336-3392        motor4@kainiugroup.com
Piston ZY125
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Piston ZY125

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Piston MODEL ZY125


Product Detail






ModelZY125
CYL DIA51.5
TOTAL HIGH35
COMP DIST19
RING1.0*1.0*2.0
PIN DIA13
PIN LENGTH38


ZY125 Piston: Premium Engine Part for Motorcycle & Tricycle Performance

Introduction: The Core of Reliable Engine Parts

The Piston is the beating heart of any combustion engine, translating fuel energy into mechanical power that drives vehicles forward. For those seeking top-tier engine parts that balance durability, precision, and performance, the ZY125 piston stands as an industry-leading choice. Meticulously engineered to meet the rigorous demands of two-wheel and three-wheel vehicles, this piston seamlessly integrates with motorcycle parts and tricycle parts systems, catering to professional mechanics, vehicle manufacturers, and passionate owners who refuse to compromise on quality. Whether you’re repairing a daily commuter motorcycle, maintaining a heavy-duty commercial tricycle, or upgrading an engine for enhanced performance, the ZY125 piston delivers unrivaled reliability—solidifying its status as a must-have component in the global engine parts market.

Product Overview: ZY125 Piston – Engineered for Versatility & Excellence

1 Model Identification: ZY125 Piston

The ZY125 piston is a specialized model crafted with OEM-grade precision, bearing the distinct ZY125 designation that signifies its adherence to strict quality and compatibility standards. Unlike generic, one-size-fits-all alternatives, this piston is engineered to fit ZY125 engine platforms and compatible variants, ensuring a seamless replacement or upgrade for worn components. Its model-specific design guarantees perfect integration with existing motorcycle parts and tricycle parts without the need for modifications, saving time on installation and reducing the risk of fitment issues—an essential advantage for both professional workshops and DIY enthusiasts.

2 Application Scope: Beyond Motorcycle Parts

While the ZY125 piston is a cornerstone of high-quality motorcycle parts, its versatility extends to the tricycle parts sector and other small-engine applications. It is specifically optimized for ZY125-branded motorcycles, utility tricycles, and light commercial vehicles that operate in diverse conditions—from bustling urban streets and smooth highways to rugged rural terrains and construction sites. This broad applicability makes it an invaluable asset for inventory managers, fleet operators, and manufacturers, as it reduces inventory complexity and ensures quick access to critical engine parts for multiple vehicle types. Whether powering a daily commuter bike or a load-bearing tricycle, the ZY125 piston maintains consistent performance.

Key Specifications: Precision Dimensions for Peak Performance

3.1 Cylinder-Centric Dimensions

3.1.1 CYL DIA: 51.5 – Optimized Bore for Balanced Power

With a cylinder diameter (CYL DIA) of 51.5mm, the ZY125 piston is engineered to maximize combustion efficiency. This precise bore size ensures optimal compression of the fuel-air mixture, translating to enhanced torque output, smoother acceleration, and reduced fuel consumption. For engine parts like pistons, a well-calibrated cylinder diameter minimizes friction between the piston and cylinder wall, reducing wear over time and extending the overall lifespan of the engine—critical benefits for both casual riders and commercial operators who rely on their vehicles for daily use.

3.1.2 COMP DIST: 19 – Enhanced Compression for Superior Combustion

The compression distance (COMP DIST) of 19mm is a defining specification that directly impacts engine performance. This dimension determines the piston’s position at top dead center (TDC), optimizing the compression ratio to ensure thorough fuel combustion. A precise compression distance prevents gas leakage, boosts power delivery across all RPM ranges, and lowers harmful emissions—aligning with modern environmental standards for motorcycle parts and tricycle parts. For vehicles operating in emission-regulated regions, this feature makes the ZY125 piston a compliant and sustainable choice.

 Piston Structural Dimensions

 TOTAL HIGH: 35 – Compact Build for Agile Performance

Featuring a total height (TOTAL HIGH) of 35mm, the ZY125 piston boasts a compact yet robust structure that balances agility and durability. This dimension ensures proper alignment with the cylinder head and valve train, eliminating the risk of interference while maintaining optimal combustion chamber geometry. The streamlined height enhances the piston’s responsiveness, making it ideal for high-revving motorcycle engines and nimble tricycles that require quick acceleration and smooth power delivery.

 PIN DIA: 13 & PIN LENGTH: 38 – Secure Power Transmission

The piston pin diameter (PIN DIA) of 13mm and pin length (PIN LENGTH) of 38mm form a durable connection between the piston and connecting rod. This combination ensures efficient force transfer, reducing vibration and minimizing wear during engine operation. The high-strength piston pin is engineered to resist bending and shear forces, while the precise length guarantees a snug fit with connecting rods—an essential attribute for long-term reliability in engine parts subjected to repeated motion and mechanical stress.

 Piston Ring Specifications: 1.0*1.0*2.0 – Sealing & Lubrication Excellence

Equipped with a premium Piston ring set of 1.0*1.0*2.0mm, the ZY125 piston delivers exceptional sealing and lubrication performance. The top two compression rings (1.0mm each) create an airtight seal in the combustion chamber, maximizing compression pressure and preventing gas leakage that can hinder performance. The 2.0mm oil control ring regulates lubricant distribution, reducing oil consumption and preventing carbon buildup on the piston crown and cylinder walls. This advanced ring design ensures the ZY125 piston operates efficiently even in harsh conditions, making it a superior choice among motorcycle parts and tricycle parts for durability and performance.

Competitive Pricing & Value

We offer the ZY125 piston at a competitive price point, making premium motorcycle parts and tricycle parts accessible to all. By optimizing our manufacturing processes and supply chain, we eliminate unnecessary costs without sacrificing quality—delivering exceptional value for money. Whether you’re purchasing a single unit for a repair or bulk quantities for manufacturing, the ZY125 piston offers a cost-effective solution for your engine part needs.
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【Tricycle】 - Vivian Tian
 Email: VivianTian86@hotmail.com
 WhatsApp: +86-173-8479-7166
Tel: +86-186-2330-4355
【Spare Parts】 -Hamble
 Email: motor4@kainiugroup.com
 WhatsApp: +86-152-2358-9673
Tel: +86-166-2336-3392
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Area B, Luohuang Industrial Park,Jiangjin District, Chongqing, China
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