Make: Peterbilt Year: 2015 VIN Number: 281006 Condition: New System 45341 (15102) shown by iSellPro, for sale by Quad City Peterbilt - 2015 PETERBILT 579 TANDEM AXLE SLEEPER FOR SALE IN IOWA:: - PETERBILT 579 for Sale Engine: CUMMINS ISX15 450 HP Transmission: 13 Spd. Axles: Tandem Suspension: Pete Flex Air Rear Ratio: 3.36