How to measure your radiator

Go with the flowThere are two basic radiator designs. They are named for the direction of the coolant flow and can be distinguished by the position of the tanks.

• The first is called a DOWNFLOW. In this design, the coolant flows from the top tank to the bottom.
  
  
• The second type is called a CROSSFLOW.In the crossflow design, the coolant flows horizontally from tank to tank.
  
  
• Before you measure a radiator, make sure it is in the upright position. You will be measuring the core only. The core is the central part of the radiator (between the tanks and the side-pieces) and consists of parallel rows of tubes and fins. MEASURE ONLY THE CORE to determine the size of the radiator.

Core Height: This dimension is determined by measuring the distance between the headers of the core. In both diagrams, core height is always the first dimension in the illustration section.

Core Width: This dimension is determined by measuring the distance between the core side rails. Only the core is measured to determine the width of the radiator, not the side rails. In both diagrams, core width is illustrated by measurement 'B'. In this catalog, core width is always the second dimension in the illustration section.

Core Depth: Carefully insert a piece of wire through the core until the end is flush with the other side. Mark the other end of the wire at the point where it is flush with the core, withdraw the wire, and measure to get the depth. In this catalog, core depth 'C' is always the last dimension in the illustration section