The piston crowns are hard anodised and then ceramic coated, the skirts are coated with MoS2/Teflon. The non-porous ceramic crown coating can withstand temperatures of up to 1300C and pressures of up to 69,000 kPa (10,000 psi). This helps to keep the piston cooler, which can help prevent it from softening and failing from high combustion chamber temperatures. The MoS2 skirt coating contains Teflon and is a dry film lubricant. It adds 0.025 mm (0.001") to the skirt diameter and can withstand temperatures of up to 600C. It will help prevent piston scuffing in the bores in most marginal lubrication conditions. Reduced heat loss to the piston equates to better fuel burn rates, and increased power and fuel economy. Piston includes 30 mm gudgeon pin and circlips. This piston is strutted, oil gallery cooled and has an alfin insert in the top ring groove. Piston ring set required RSNI131 STD. Sold as an engine set. (DPP brand -  The ceramic and Moly/Teflon coatings are applied in Australia)