Recently noticed my right front turn signal was not working. Found out why. Both this (1 year old aftermarket housing) and the left original OEM had leaks. The difference? The OEM stared leaking this year (my car is approaching 22 years old) and the aftermarket leaked after being only 6 mos. old. Our first snow this year melted and each of the lenses filled up. I was amazed at how the left signal continued to work even when bulb was submerged!!! Anyway, took both lens housings out, sealed with silicone, drilled two small holes for any future 'weaping' that might be needed. In went new bulbs and "Tada"!, signals all working again. I'm fortunate that on a '99, getting to these housings was not that tough. For good measure, I added some silicone grease on the old rubber washers? that snug the bulb sockets to the lens since I think this might have been one of any number of weak/leaking spots on the lens. Second bulb pic is of those that stayed lit while submerged. The housing closeup all dirty is the OEM Made in USA lens. The other is the aftermarket.