606883-00 Guard, Lower - Dewalt® (OBSOLETE)

Part 606883-00 Guard, Lower: is a genuine Dewalt part. part 606883-00, which is the one that I ordered, was LOWER, D/C 200241 AND LATER whereas part 5140000-88, which I had thought to be a kit with extra parts that I would not be needing, was LOWER, D/C 200240 AND EARLIER