We Interchange the 60A and 70A Here. This Looks Very Similar to the 14756, Except the Pulley Here is a Single V-Groove, Rather Than a Serpentine, and the Cooling Fins on the Rotor Cool in the Opposite Direction. Do Not Use the 14756 In Place of The 14668, as the Reverse Cooling Fins Will Cause Overheating. The Amperages Vary Slightly as the OEM No.'s Vary Between 14668's, But All Are Interchangeable.