And that's what I'm talking about. The first 3 have 3 different lengths to them. 2.0 inches, 2.4 inches and 2.5 inches.

.1 inch likely makes no difference, but half an inch sure might.

Did you save your old one? Measure it against your new one. Or if your new one is 2.4/5 inches buy the 2 inch one.