Lower Coolant Tube Fits Kenworth C15 Acert OEM# F661056 F661604 Stainless Steel. Kenworth Coolant Tube. Kenworth T600 Upper Coolant Tube Fits Cat C15 C16 Stainless Steel OE# K181-5606. Coolant Tube Fits Kenworth T660 Cat Engine OE Part # V88-1072 Stainless 1.25".
