Heavy duty truck and trailer signal lighting performs important safety functions while you are on the road. They keep you and other drivers safe by showing a change in direction and deceleration. Heavy duty truck and trailer lights also make your vehicle more noticeable to other motorists at nighttime and during poor visibility.FleetPride carries a variety of heavy duty incandescent and LED signal lighting products for your truck and trailer, such as multipurpose stop turn tail lights, turn signal lights, trailer tail lights, side marker light assembly, trailer tow lights, turn signal parking light assembly parts, and more. Browse our extensive heavy duty part inventory to find the right part for you.