Replacement Amber Lens March 27, 2015, 03:23:56 pm Yahoo Message Number: 151857Hi Jaime. That 'night light' is a marker/clearance light which might be why you are having problems finding replacements. The PM stands for Peterson Manufacturing. The part number is 100-15A for the amber, 100-15R for the red. Peterson sells a minimum quantity of 10 (bulk pack of 100). I buy mine at the mothership, but I've been buying 10 at a time for future proofing. Most RV makers have switched to LED lights, so these covers are in the 'Legacy' class. My front markers are in full sun and last 3-4 years. I replace them 5 at a time. Still have the original red ones, they are parked out of the sun. I could turn around the motorhome when parked I guess. Try this URL, http://www.pmlights.com/products.cfm?cId=9&fId=67&pId=3136 RonB with 'Bluebelle' a '99 TKB