Fitment - Right & Left LED Headlight Compatible with Peterbilt 357/ 359/ 365/ 367/ 378/ 379/ 389/ 567. Note: Only fit for trucks with lights on the hood side Feature - Built-in LED driving light bars in the headlamps extend the range of illumination and also enhance the appearance of the vehicle, making it bright and eye-catching during the day and giving you a good driving experience at night Materials - The headlight material is made of high grade plastic, which is sturdy and durable and not easy to wear out. Plastic casing is lightweight and does not weigh down the vehicle Smoothness - All headlights are LED dual 4-inch by 6-inch high/ low lights. Improve the visibility of driving in bad conditions such as rainy and foggy days, and make driving easier and more comfortable. Enhance the visibility of the line of sight, improve the smoothness of driving Package & Installation - 1 Pair of Headlights w/ Wiring Harness (L & R). Bulbs and Mounting Arms are included. Mounting hardware and instruction are included. Direct bolt on. You may need to do some modifications during installation HECASA LED Headlight Pair Compatible with Peterbilt 357 359 365 367 378 379 389 567 Front Headlamps w/Mounting Arms Clear Lens Chrome Housing Right & Left Fitment - Right & Left LED Headlight Compatible with Peterbilt 357/ 359/ 365/ 367/ 378/ 379/ 389/ 567. Note: Only fit for trucks with lights on the hood side Feature - Built-in LED driving light bars in the headlamps extend the range of illumination and also enhance the appearance of the vehicle, making it bright and eye-catching during the day and giving you a good driving experience at night Materials - The headlight material is made of high grade plastic, which is sturdy and durable and not easy to wear out. Plastic casing is lightweight and does not weigh down the vehicle Smoothness - All headlights are LED dual 4-inch by 6-inch high/ low lights. Improve the visibility of driving in bad conditions such as rainy and foggy days, and make driving easier and more comfortable. Enhance the visibility of the line of sight, improve the smoothness of driving Package & Installation - 1 Pair of Headlights w/ Wiring Harness (L & R). Bulbs and Mounting Arms are included. Mounting hardware and instruction are included. Direct bolt on. You may need to do some modifications during installation