There a 2 sizes of ‘A' Coils. Please make sure you are purchasing the correct Coil for your Valve. This Coil, (PN:15659), is stamped (014), and fits a Valve with a 1/2” to 9/16” Tube (PN:15660). The Coil is secured with a 1/2” or larger Steel Nut. It is commonly know as the NEW A COIL. When this Coil is energized, the A-Valve will shift and the Blade will drop. If the blade drifts down slowly when the coil is off, you have a faulty A-Valve. This coil may be on any of these pump Models: E46, E47(H), E57(H), E60(H). You must identify the coil, not by the pump Model Number, but by the diameter of the Valve Tube (1/2” or larger) as stated above. Optional 18-8 Stainless Steel Nut Included.