Hi Charles, I'm glad to assist you. If the plastic over time becomes foggy, the material has degraded already and becomes brittle. It is best to replace the headlight assembly if that happens. Grab our sale price and click the link below to buy it today. Happy shopping! https://www.carparts.com/headlight/replacement/repcd100102?can=cpje1043_CSQA_20230903

Hi Duane, I'm glad to assist you. The OE number you provided is just a kit and not for an assembly. This is a guaranteed direct replacement for the 2006-2011 Cadillac DTS models. I hope this helps, and if this matches your vehicle, you can click on the link below for direct ordering to take advantage of our ongoing discount and limited stocks. Happy shopping. https://www.carparts.com/headlight/replacement/repcd100101?can=CPAE1047_CSQA_20230524

Hi Gail, I'm pleased to assist you. It gives us great pleasure to vouch for these headlights' water tightness, waterproofness, and ventilation levels, which prevent condensation. This is covered by a 1-year unlimited mileage warranty. After you place your order, you can also select a Lifetime Replacement, which is indicated in the top right corner. Click the link below to continue ordering at a discounted offer today, while supplies last. I hope this helps. Enjoy your CP shopping experience! https://www.carparts.com/headlight/replacement/repcd100102?can=CPGG4850_CSQA_20230330

Hi David, thank you for reaching out. The adjustment screw is located near the upper right corner of the low beam headlight box when you look from behind the headlight. The adjuster is visible from the 5th photo of this item. You can use this link to order the part and take advantage of this excellent price: https://www.carparts.com/headlight/replacement/repcd100102?can=CPAP3648_20220518 I hope this helps. Happy shopping.

Hi Debra, Good Day! Thank you for your purchase. Thank you for taking the time to share your feedback about the delivery of your recent order. We sincerely apologize for the delay and inconvenience. According to our records, your order is still in transit; please allow a few more days for the part to arrive. We've emailed you the tracking number so you can keep track of your order. We'll investigate what happened and determine why your order was not delivered on time. We're always searching for ways to improve our service, and this will certainly be one of them! We regret for the inconvenience once more, and we value the opportunity to serve you better. Please do not hesitate to contact us if you have any other concerns or require additional assistance. Thank you, Philip Customer Advocate Team