I needed the gasket/seal that encircles the "small round" parking light on the front end/cladding. I tried the local Isuzu dealer and St. Charles but neither could get it. I was able to get one from these guys...it took 6 weeks but they came through at reasonable price. You can search "body parts" or "mechanical parts".

https://www.isuzuparts.com/partscat.html
http://www.trademotion.com/partlocat...?siteid=214304