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. Note: Please compare your item carefully with photo and OE Number to avoid mistake!! Please leave us your full name, your telephone number and detailed address when ordering. We try our best to pack the products as good and safe as possible, so they always arrive in a good condition. We offer sophisticated products at a high technological level, with the highest possible quality and the most favorable price. With these parts you can replace your defective parts simply plug and play. 24 months without mileage limitation. Please compare carefully with Photos or OE number before purchasing the part.