Upgrade with the BESTfit Headlight Filler Panel For International 4200 & 4300, a high-quality fiberglass aftermarket panel designed to close the gap between the headlight and bumper on trucks built from 2002 through 2024. It replaces OEM part number 3545917C4 on the driver side (and replaces 3545918C4 on the corresponding passenger side), offering a direct replacement for worn or damaged original panels. Sold individually, this panel comes in white and includes a warranty against defects in workmanship and material from the date of purchase, giving truck owners confidence in both fit and durability. Because it's an aftermarket (non-OEM) part, confirming your specific model year and side before ordering helps ensure proper compatibility, and once installed it helps restore a clean, finished look to the front end of your International truck.