Will F it F ollowing M odels. For Freightliner 2004 and older 12.7 engine. Most common air compressor on Detroit Series 60 12.7 (PRE EGR) 2004 and older models. This listing is for TF-750 Series 60 Detroit Compressor. It is same as TU-FLO-550 just 750 is producing more air more CFM. There will be delay if this process is not completed. Welocme To ACE-Autoteile Shop, ur shop mainly deals in car accessories. We are committed to providing you with high-quality products and professional after-sales service. Please add our store if you like it.