Frequently Asked Questions About Peterbilt 388 Cab, Sleeper & Cowl Panels

What years and models are these cab panels compatible with?

Our Peterbilt 388 cab, sleeper, and cowl panels are designed specifically for model years 2006-2015. These panels are engineered to match OEM specifications for the 388 model only. While some panels may appear similar to other Peterbilt models like the 386 or 389, the mounting points, dimensions, and contours are unique to the 388. Always verify your truck's model year and VIN before ordering to ensure proper fitment.

Are these panels made from the same material as OEM parts?

Most aftermarket cab panels are manufactured from 18-gauge steel or aluminum, depending on the specific part and your selection. Steel panels typically come with a primer coating and require painting, while aluminum options are naturally corrosion-resistant but may need special preparation for painting. OEM panels are generally 16-18 gauge steel with factory primer. We recommend checking the product specifications for each panel, as material thickness and coating can vary between manufacturers.

Do I need special tools or professional installation for these panels?

Installation complexity varies by panel type. Cowl panels typically require basic hand tools and can be installed in 2-3 hours by someone with moderate mechanical experience. Sleeper panels and larger cab sections often require cutting, drilling, and welding, making professional installation recommended. You'll need standard body shop tools including drill bits, rivet guns, and potentially welding equipment. Most panels require removal of existing damaged sections, which can involve cutting tools. Always test fit panels before final installation, as minor adjustments are common.

Will I need to paint these panels, and do they come with mounting hardware?

Most cab panels arrive in bare metal or primer finish and require painting to match your truck. Some aluminum panels come mill-finished. Mounting hardware is typically not included, as most installations reuse existing bolts, rivets, or clips from the original panels. You may need to purchase separate hardware kits or rivets depending on the condition of your original fasteners. We recommend having panels professionally painted to ensure proper adhesion and color matching with your existing cab.

What's the difference between aftermarket and OEM panels in terms of fit and quality?

Aftermarket panels are manufactured to closely match OEM specifications but may require minor adjustments during installation. Common differences include slight variations in stamping depths, mounting hole locations that may need minor drilling adjustments, and edge finishing that might require trimming. Quality aftermarket panels typically fit within 1/8" of OEM specs. While OEM panels offer drop-in fitment, aftermarket options provide significant cost savings (often 40-60% less) with minimal additional installation effort. Most professional body shops are experienced in working with aftermarket panels and can achieve OEM-quality results.