Pistons (Wholesale) is a subdivision of the Motor Vehicle Supplies and New Parts (Wholesale) industry, which involves the distribution of automotive parts and accessories to retailers, repair shops, and other businesses. The Pistons (Wholesale) industry specifically focuses on the wholesale distribution of pistons, which are essential components of internal combustion engines. These pistons are typically made of aluminum or cast iron and are responsible for transferring the force of the expanding gases in the engine's combustion chamber to the crankshaft. The Pistons (Wholesale) industry plays a crucial role in the automotive industry by providing high-quality pistons to manufacturers and repair shops.