Peterbilt 357/378 Grilles

Frequently Asked Questions About Peterbilt 357/378 Grilles

Will this grille fit my Peterbilt 357 or 378 without modification?

Grilles in this category are designed to match the factory grille opening on the Peterbilt 357 and 378 models. However, because these trucks were produced over many years and may have gone through minor design changes, it's important to verify the model year and confirm bolt pattern and dimensions against your existing grille before ordering. If you're unsure, our customer service team can help confirm fitment.

What materials are these grilles made from, and how do they hold up over time?

These grilles are typically available in stainless steel or aluminum, depending on the specific product. Stainless steel options generally offer strong corrosion resistance and durability for daily highway use, while aluminum versions provide a lighter-weight alternative. Look at each product listing for the specific material and finish used, since options can vary between polished, brushed, and painted finishes.

Do these grilles come with the mounting hardware and brackets needed for installation?

Many grilles include the necessary mounting hardware, but this can vary by manufacturer and specific product, so it's worth checking the product description before you order. Some grilles are designed to reuse your existing brackets, while others may require additional hardware sold separately. If a listing doesn't specify, feel free to reach out and we can clarify what's included.

Can I install this grille myself, or should I have a professional do it?

Most grilles are designed for straightforward installation using basic hand tools, and many truck owners install them without professional help. That said, installation time and difficulty can depend on whether you're replacing a damaged grille, working around existing brackets, or dealing with rust or corrosion on mounting points. If you're not comfortable with the process, a shop familiar with Peterbilt trucks can complete the swap quickly.

Are these grilles designed for louvered or non-louvered grille openings, and does it matter?

Peterbilt 357 and 378 trucks can have different grille styles, including louvered and non-louvered configurations, so it's important to match the style of your current grille when selecting a replacement. Ordering the wrong style can lead to fitment or airflow issues, so double check the product details and compare them to your truck's existing setup before purchasing.