Yea, I would think under most circumstances, it shouldn't overload it. I doubt that there's a lot of amperage coming through that AC line that normally powers 2 small lightbulbs. It's got to be less than 1 amp and I would hope Briggs would spec electrical parts with a pinch of wiggle room. Even still, diodes are cheap and if you know how to split and re-join wires properly, you probably know how to replace a diode