DESCRIPTION 1989 Peterbilt 378 Tank Truck (LLD1521), Cat 3406B diesel engine, 10 speed transmission, engine brakes, air ride, 3,000 gallon poly tank with stainless steel baffles, gas pumps, dual fuel tanks, heat, air conditioning, shows 710,911 miles. Serial Number: 1XPFDB9X4KD280378 Notes: