Sump pump, or trash pump? If you're sticking your face in a "smelly hole" (I'll refrain from the obvious jokes), it sounds like you are replacing a septic tank pump on a mounded system. Or something similar.
I've used Menards purchased pumps (1/2 HP Barracuda variety) for the past 12 years on my septic system to lift flavored water out to the drainfield. I've replaced 3 pumps since I bought the place. First time it was actually the drainfield that had a problem. Next time the float stuck and the pump likely ran non-stop for well over a month straight and was replaced simply because I didn't trust it going forward. I've yet to actually burn out the pump itself.
Note, I also buy pumps in pairs so I have one on the shelf for when the installed one needs to be replaced at any time of the day without a trip to the store. That way I don't have to mess with reconfiguring the damn PVC riser pipe when it's -40 due to the height of the pump. Having to adjust the length of the riser pipe is some unnecessary BS at those temps.