Blue Line
Blue Line 57.4mm Piston Ring Set - GY6 150cc
Description
Restore compression and oil control during your next top-end refresh with this Blue Line piston ring set for GY6 150cc engines with a 57.4 mm cylinder bore. Compression rings and oil-control components work together to help bring a worn engine back to a strong, clean-running ride.
Key Features
- 57.4 mm bore application: Sized for GY6 150cc models with a 57.4 mm cylinder bore
- Compression and oil control: Includes compression rings, thin oil rails and a corrugated oil-ring expander
- Blue Line aftermarket replacement: Refresh the ring set when your piston and cylinder remain within service limits
Technical Specifications
- Brand: Blue Line
- Part number: 1100-1234
- Part type: Piston ring set
- Engine application: GY6 150cc
- Cylinder bore: 57.4 mm
- Thin ring thickness: 0.4 mm
- Thin ring width: 1.8 mm
- Middle oil ring thickness: 1.8 mm
- Piston ring inner diameter: 56 mm
Compatibility
| Engine code | Application | Required cylinder bore |
|---|---|---|
| 157QMJ | GY6 150cc | 57.4 mm |
| YN1P57QMJ | GY6 150cc | 57.4 mm |
| JJ157QMJ | GY6 150cc | 57.4 mm |
| 1P57QMJ | GY6 150cc | 57.4 mm |
| BN157QMJ | GY6 150cc | 57.4 mm |
| Other "57Q" Code Engines | GY6 150cc | 57.4mm |
For GY6 150cc engines with a 57.4 mm cylinder bore. Match the piston ring grooves and check ring end gap, groove clearance and ring orientation against the engine service specifications during installation. The 56 mm ring inner-diameter measurement is separate from the 57.4 mm cylinder bore.
Product Diagrams
Features
Specifications
Brand: Blue Line; Part number: 1100-1234; Type: Piston ring set; Engine: GY6 150cc; Engine codes: 157QMJ, YN1P57QMJ, JJ157QMJ, 1P57QMJ, BN157QMJ; Cylinder bore: 57.4 mm; Thin ring thickness: 0.4 mm; Thin ring width: 1.8 mm; Middle oil ring thickness: 1.8 mm; Piston ring inner diameter: 56 mm; Contents: Compression rings, oil rails and corrugated expander
Model Fitments
GY6 150cc models with a 57.4 mm cylinder bore; Engine codes: 157QMJ, YN1P57QMJ, JJ157QMJ, 1P57QMJ, BN157QMJ; Existing named scooter applications require this GY6 150cc 57.4 mm bore configuration and matching piston ring grooves