Thomas Radiators – Browse replacement parts

Do you need a new Thomas radiator, or can it be repaired? How can you tell if the radiator is repairable or if you need a new one? Major coolant leaks are a common indicator that a new radiator is your best option. Active is here to help! We can help to bridge the gap in the current supply chain issues and get you the parts that you need!

The main component of your cooling system is the radiator, it keeps your engine at the optimal operating temperature. This is why it is so important to ensure that it is in working order.  While using your vehicle, you can be confident that should you need repair, we can help you through that! If your radiator is beyond any repair, Active Radiator has the most popular Thomas replacement parts in stock across the U.S. If we do not have it we will make it for you! For example, we have the 310142 Radiator for your 2007 and up Thomas Bus.

Experience the Active advantage today! We’ll help get your equipment back in service quickly with minimal downtime.  Find a location near you to buy a Thomas radiator replacement or schedule to bring us your radiator to evaluate for repair.



Part Number Height Width Depth Filler Neck Product Inlet Outlet Oil Cooler 
31002129.62525.752.25NoneRadiatorLeft / TopRightBottom
31003528.812525.252.25NoneRadiatorRightLeftBOTTOM
3100513018.1252.25NoneRadiatorTop LeftBottom RightLeft
31005228.12527.1251.5625NoneRadiatorTop LeftBottom RightBottom
31006229.875252Top RightRadiatorTop LeftBottom RightBottom
31006428.437527.752.25NoneRadiatorTop LeftBottom RightBottom
31006830192.25 Radiator   
31008129.62525.752.25NoneRadiatorTop LeftBottom RightBottom
310083WF27.532.68752.25NoneRadiatorRightLeftNone
31014227.437525.06252.0625NontRadiatorLeftRightBottom