Mack MD Medium Duty LED Headlight conversion.  Plug N Play!  The TL 37 Series Direct LED Headlights, in a durable rectangular 5"x7" design with 6 diodes for both high and low beam patterns, offer reliable and versatile lighting for improved visibility in various conditions.  This is a drop in upgrade for your MD6 or MD7 factory incandescent lights!  Non-heated.  Sold individually (requires 2 per truck)

Genuine Trucklite!