Give your Peterbilt 357 or 378 a custom, show-worthy look with a bold aftermarket grille upgrade. Whether you're going for a clean, classic vibe or a more aggressive, custom style, this product lineup has the grille options to match your truck’s personality. Built tough and designed to impress, our grilles let you put a finishing touch on your rig that stands out from the crowd.

Why Upgrade Your Semi Truck Grille?

Swapping out your factory grille is a fast, effective way to upgrade your rig’s style. Here’s why it matters: - Adds a bold, custom touch to your front-end truck - Pairs perfectly with chrome bumpers, visors, and fenders - Helps your truck stand out at shows or on the highway - Some grille styles help improve airflow to your radiator Plus, with high polish finishes and detailed design work, these grilles bring out the best in your Peterbilt’s iconic styling.

Effortlessly Personalize Your Rig

These aftermarket grilles are more than just decorative—they’re built from premium materials like polished stainless steel, aluminum mesh, and custom-punched or slotted steel panels. They’re designed to hold up to daily driving while delivering serious visual impact. Choose from styles like: - Straight bar grilles for that classic Peterbilt look - Punched or louvered patterns for custom builds - Grille surrounds and trim kits for a fully polished front-end upgrade Whether you drive a Peterbilt 357 or 378, you’ll find grilles that are built to fit and easy to install. Each grille in this collection is designed to match the fitment and dimensions of the Peterbilt 357 or 378. Whether you’re replacing an old grille or building a full custom look, you’ll find: - Direct-fit designs - Easy mounting options - Optional grille trim and accessories Shop Peterbilt 357 & 378 Grilles at 4 State Trucks and turn your front-end into a statement piece. Protect your investment with some heavy-duty Pete 357/378 grille guards or pair your purchase with blind-mount front bumpers, filler panels and bumper trims, or Peterbilt 357/378 bumper flip kits. Peterbilt Durable, stylish, and built for the open road—these grilles bring form and function together in one clean package.