The product is a crankshaft main bearing set for Mercedes 250, 280, 300 SE SL Pagoda models, manufactured by Kolbenschmidt. The manufacturer part number is 87738600, and it has a reference OE/OEM number of A1300300040. This bearing set is designed to provide smooth and reliable operation for the crankshaft, ensuring the engine runs efficiently and smoothly. Perfect for Mercedes owners looking to replace worn out or damaged bearings, this product offers quality and durability.