Engine Coolant Reservoir - Compatible with Freightliner - Cascadia, Century Class, Columbia, Coronado, FLD120SD, M2 106 - Coolant Reservoir Tank - Coolant Overflow Tank - Replaces 525263005 About this item COMPATIBLE WITH FREIGHTLINER VEHICLES - 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Freightliner Cascadia | 08, 09, 10, 11 Century Class | 10, 11, 13, 14, 15 Columbia | 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 Coronado | 2011 FLD120SD | 2014, 2016 M2 106 | 2008-2019 M2 112 |. If you are experiencing leaks, a low level of coolant or an overheating engine, then you may have a problem with your coolant reservoir radiator overflow tank. REPLACES PART# A05-25263-006, 525263005, A0525263005, A0525263007, A0533118000, 603-5203 commonly found on popular Cascadia, Century Class, Columbia and Coronado vehicles including models 08, 09, 10, 11, 12, 13, 14, 15, 16 17, 18, 19. The coolant reservoir tank can easily be located on the engine bay mounted on the engine near and connected to the radiator.