Stainless steel blank air cleaner panels are designed as a clean exterior upgrade, offering a smooth, light-free finish for a more streamlined look. The panels featured on this product are made from stainless steel, which provides corrosion resistance and a polished surface that helps maintain a clean appearance over time. They are intended to replace or cover factory air cleaner areas on specific Peterbilt models, including 388 and 389 applications. Sold as a pair, these panels are typically used on rear air cleaner/breather assemblies and are designed to fit setups with Donaldson-style cleaners. As aftermarket replacement parts, they are built to match fitment requirements while delivering a simplified, blank design preferred by drivers looking for a minimal exterior style. Fitment spans multiple model years within the Peterbilt 388 and 389 range, making them a targeted upgrade for those specific platforms.