SKU:180469
MOS2 (Teflon/Molybdenum) Coated Skirts - A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures
Machined Smooth Heads - Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%
Anodized Domes - Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistons
Hypereutectic Casting Process - Provides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperatures
The Namura NA-30010-2 OEM-style piston kit is designed for engine rebuilds requiring a 0.5 mm oversize piston. It provides a practical replacement solution when cylinder wear or prior machining calls for an increased piston diameter. Built to support dependable engine service, this kit is suited for powersports and small-engine applications when matched to the correct vehicle, cylinder, and manufacturer specifications.
The piston follows an OEM-style design intended to support proper fit, function, and compatibility with the original engine configuration. Its application-specific construction helps maintain the correct relationship between the piston, cylinder, rings, wrist pin, and retaining components. Before installation, confirm the required oversize measurement, cylinder condition, piston-to-cylinder clearance, and complete component compatibility using the engine service manual or qualified machine shop recommendations.
This Namura kit is supplied as a unit and should be installed only after the cylinder has been accurately measured and prepared for the specified oversize. Proper honing, clearance verification, ring installation, lubrication, and break-in procedures are essential for reliable performance and service life. Inspect related components during the rebuild, including the connecting rod, wrist pin bore, circlips, cylinder surface, and crankshaft assembly. The NA-30010-2 offers a focused replacement option for restoring an engine with a properly prepared cylinder while retaining an OEM-style piston design.
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