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Piston Rings Set Assembly for GY6 150cc 157QMJ Engine
Piston Rings Set Assembly for GY6 150cc 157QMJ Engine
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Product Overview
Ensure a perfect cylinder seal with this premium Piston Ring Set, specifically designed for the GY6 150cc (157QMJ) engine platform. These rings are engineered to restore engine compression and prevent oil blow-by, providing the reliable sealing performance necessary for high-mileage scooters, ATVs, and go-karts.
Product Compatibility
Designed for the standard air-cooled 150cc GY6 engine used by almost all Chinese powersports manufacturers.
| Vehicle Type | Common Compatible Brands & Models |
| Scooter / Moped | TaoTao, Jonway, Roketa, Ice Bear, VIP Future Champion, Bintelli |
| ATV / Quad | 150cc Utility Quads, Peace Sports, Vitacci, Coolster |
| Go Kart | Kandi, Yerf-Dog, Hammerhead, Carter Talon, TrailMaster |
| Engine Series | GY6 150cc, 157QMJ, 1P57QMJ |
| Compatible Bore | Fits standard 57.4mm Cylinder Bore |
Specifications
| Component | Metric Measurement | Material / Type |
| Compatible Bore | 57.4mm | Standard GY6 150cc Size |
| Engine Type | 4-Stroke Air-Cooled | -- |
| Material | High-Toughness Alloy Steel | -- |
| Surface Treatment | Anti-Corrosive / Rustproof | -- |
| Package Includes | Complete Ring Set | Compression & Oil Rings |
Key Features
- Superior Gas Sealing: Precision-engineered to prevent combustion gases from escaping, maximizing engine compression and power output.
- High-Toughness Material: Crafted from specialized alloy steel that resists high-temperature deformation and mechanical stress.
- Corrosion & Rust Resistance: Features an advanced surface treatment that ensures longevity and prevents rust even after prolonged exposure to heat and oil.
- Enhanced Oil Control: Includes a multi-piece oil ring set designed to maintain proper lubrication while preventing oil from entering the combustion chamber.
- Reliable Engine Protection: Effectively reduces internal friction and wear on the cylinder wall, extending the overall service life of your top-end.
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Fitment FAQ
Will this part fit my specific model and year?
This cylinder piston kit is intended for Designed for the standard air-cooled 150cc GY6 engine used by almost all Chinese powersports manufacturers.; Vehicle Type; Common Compatible Brands & Models; Scooter / Moped; TaoTao, Jonway, Roketa, Ice Bear, VIP Future Champion, Bintelli; ATV / Quad; 150cc Utility Quads, Peace Sports, Vitacci, Coolster. Key physical/spec details from the product data include Compatible Bore: Fits standard 57.4mm Cylinder Bore, Fits standard 57.4mm Cylinder Bore, Compatible Bore: 57.4mm. Use the compatibility table and product photos together before ordering.
Do I need to match the OEM part number?
Yes. If your original part has a stamped OEM or manufacturer number, match that number first before ordering. For this cylinder piston kit, also compare the bore diameter, piston-pin size, gasket pattern, stud spacing, engine code, stroke type, and cylinder height. This is especially important for GY6/Roketa/TaoTao GY6 models because similar model names can use different parts by year or trim.
What models or situations does this part not fit?
Do not order this cylinder piston kit for machines outside the listed compatibility, or for units with different bore sizes, piston-pin diameters, stroke lengths, stud spacing, or gasket patterns. Do not rely only on the model name or engine size.
What should I check before ordering?
Before ordering, compare your original part with the photos and check the bore diameter, piston-pin size, gasket pattern, stud spacing, engine code, stroke type, and cylinder height. Recheck listed specs such as Compatible Bore: Fits standard 57.4mm Cylinder Bore, Fits standard 57.4mm Cylinder Bore, Compatible Bore: 57.4mm. If any connector, mounting point, size, or year detail is different, confirm fitment before installation.
Fit as it should