Malossi 40.8mm Replacement Piston Rings - 50cc Cast Iron Sport Cylinder Kit (Part Number: 44435198180 / 31 8520T)
$15.00
Sale price
$15.00
Regular price
$42.99
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Malossi 40.8mm Replacement Piston Rings - 50cc Cast Iron Sport Cylinder Kit (Part Number: 44435198180 / 31 8520T)
$15.00
Sale price
$15.00
Regular price
$42.99
Product Description
Restore critical combustion compression, sealing performance, and power delivery to your 2-stroke scooter with this set of genuine Malossi 40.8mm Replacement Piston Rings. Engineered specifically for Malossi's renowned 50cc cast iron sport cylinder upgrade kits, these precision rings are crafted to withstand high-revving thermal stress while maintaining an optimal cylinder wall oil film barrier.
Precision-machined in Italy to exacting clearance tolerances, this ring set acts as a vital maintenance or rebuild item for worn-out top ends. Replacing your piston rings prevents blow-by gases from escaping into the crankcase, ensuring crisp throttle response, stable idling, and maximum power from your 50cc setup.
- Genuine Malossi Performance: Designed and manufactured to exact material specifications matching your original Malossi cast iron top end.
- Optimal Compression Seal: High-tensile construction prevents blow-by to optimize thermal efficiency and peak engine torque.
- Low Friction Engineering: Advanced metallurgical profiling minimizes friction losses against the cylinder wall to reduce heat build-up.
Technical Specifications
- Brand: Malossi
- Distributor Part Number: 44435198180
- Supplier Reference Number: 35 1981.80
- Malossi Factory Part Number: 31 8520T
- Piston Ring Diameter: 40.8 mm
- Engine Type Compatibility: 50cc 2-Stroke (Cast Iron Cylinders Only)
Fitment & Compatibility
This ring kit serves as the exact replacement for Malossi 50cc cast iron sport cylinder setups (such as the 444-318520 or 31 8520 series) found on a wide range of popular 2-stroke scooter platforms, including:
- Yamaha BW's 50 / BW's Next Generation
- Yamaha Jog 50 (Horizontal & Vertical 2T)
- Piaggio 50cc 2T Air-Cooled/Liquid-Cooled Engines
- CPI / Keeway / Minarelli-Clone 50cc 2-Stroke Scooters
- Note: These rings are strictly for Malossi 40.8mm bore cast iron cylinder applications. They will not fit standard OEM factory-sized pistons.