Kenworth's 45-gallon fuel tank K270 and K370 medium duty cabovers now offer the option of a second 45-gallon fuel tank, providing customers greater range and longer operating times between refuelings. The second, 45-gallon rectangular fuel tank utilizes approximately 28" of frame space, clearance between the battery box and the fuel tank is nearly 5-1/2", and from back of the cab to the back of fuel tank is just over 100" on the passenger side frame rail. The tank can be used with 19.5" tires and wheelbases of 166, 178, 190, 202, 214, 226 and 238" or with 22.5" tires and wheelbases of 170, 182, 194, 206, 218, 230 and 242".