This is a replacement connecting rod for specific industrial engines. The part number is 30H19-00030 or 30H19-00031. It's designed for the Mitsubishi K4N and K4N-DI diesel engines. These engines are commonly found in heavy equipment like the Kobelco SK045 excavator and Caterpillar models such as the MM57SR and MM45 loaders, as well as the 305CR. If you're rebuilding one of these engines and need a new connecting rod, this is the part you're looking for. The listing comes with one connecting rod. It's super important to be absolutely sure this matches your engine before ordering. The seller strongly recommends you provide them with a photo of your engine's nameplate or the part number of your old rod so they can confirm it's the right one for you. Professional installation is a must for something this critical—this isn't a DIY job for most people. A vital component for getting your machinery back up and running strong.
