United TranzCore provides wholesale transmission parts and cores for rebuilding shops. Our company was established in 1997 and provides worldwide service from our East Chicago, Indiana headquarters and warehouse. We are strategically located just outside of Chicago, near Interstates I94, I80 and I90 and within driving distance of Indianapolis, Columbus and Detroit.

If you are a first time customer or have questions about our products, please feel free to call us! We are happy to discuss how we can provide transmission parts and cores for your shop. Consider us your transmission parts experts! We are ATSG and ATRA members.