Improve the look of your Peterbilt with these 3.5-inch stainless steel cab panels featuring block heater and lighting options. Designed to fit Peterbilt 579 Extended Hood trucks, these polished stainless steel panels offer a clean custom appearance while adding practical visibility on the road. Available with multiple LED light configurations, including amber/amber 3/4-inch LEDs, the panels help enhance nighttime visibility without sacrificing durability. The integrated block heater plug adds convenience for cold-weather operation, making these panels a useful addition for both working show builds. Constructed from high-quality stainless steel and sold as a pair, they are built to handle daily highway use while maintaining a polished finish.