The Freightliner Century Class And Columbia 120 Caterpillar C15 Lower Radiator Coolant Pipe is an ideal replacement for specified vehicles. This engine coolant pipe is a cost-effective solution that offers original equipment quality at a competitive price. It has been quality tested through try-on and material testing to ensure a proper fit and long service life. Designed for Caterpillar C15 engines, it fits most Freightliner Century Class models from 2001 to 2003 and Freightliner Columbia 120 models from 2001 to 2004. This direct OE replacement pipe, with stainless steel construction, does not include the coolant hose heat shield and protective sleeve. Direct OE replacement numbers are Freightliner A05-16384-000 and A05-16384-001.