This idler shaft fit is designed for use with Cummins engines K19, K38, K50, QSK, NT14, and NT855. Made in China, it is a high-quality replacement part that ensures optimal performance and reliability. Whether you're a professional mechanic or a DIY enthusiast, this idler shaft fit is easy to install and provides a perfect fit for your Cummins engine. In addition to its compatibility with various Cummins engines, this idler shaft fit is also made from durable materials. It is designed to withstand heavy-duty use and provide long-lasting performance. So, if you're looking for a reliable replacement part for your Cummins engine, this idler shaft fit is an excellent choice.