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Peterbilt 379 Cab, Sleeper & Cowl Panels
How You Can Personalize Your Semi Truck Sleeper Cab
Choose panels with built-in lighting options like bullseye lights, slotted light cutouts, or integrated LEDs. Pair them with light brackets for sleeper panels to really make your truck stand out day or night. We ve got it all: - Wide cowl panels for extra coverage and additional integrated LED lighting for more style - Extender panels and filler plates for a smooth, seamless look - Standard wrap sleeper panels for that factory-tight finish - Blank cab panels you can build your own style around - Peterbilt 379 cab replacement panels if you're dealing with rust, dents, or just want something new These aftermarket cab panels are built to fit right, complement your door cab siding accessories, install easy, and last for the long haul. Ready to convert your Peterbilt 379 cab? Filter by style, material, or sale price, and find the setup that works for your truck and your budget.FAQs - Peterbilt Cab Sleeper Cowl Panels
1. What do cab, sleeper, and cowl panels do? They protect your truck from road grime and debris, while adding custom style. Plus, they help smooth out airflow and cover exposed frame or cab gaps. 2. Are these panels direct fit for Peterbilt 379s? Yep. These are built specifically for the 379. Just match the cab style (day cab or sleeper) and double-check your wheelbase or frame setup. 3. What materials are available? Mostly stainless steel and aluminum. Stainless gives you that polished chrome look and corrosion resistance. Aluminum is lightweight and easy to paint or match to trim. 4. Can I add lights to these panels? Absolutely. Many panels come with LED light cutouts, including bullseye, slotted, or clear lens styles. Great for extra visibility and custom looks. 5. What's the difference between cab, sleeper, and cowl panels? - Cab panels mount along the lower cab. - Sleeper panels sit below the sleeper section. - Cowl panels cover the gap behind the front fender and door. - They all connect for a seamless side profile. 6. Do I need extenders or filler panels? If you're running a long sleeper or want a fully wrapped look, yes. Extender panels, filler plates, and wraparounds help bridge the gaps and complete your setup. 7. Are these panels hard to install? Not really. Most bolt onto factory holes or use included brackets. A little time, a drill, and you're good to go. 8. Will these fit with my existing fairings or steps? Usually, yes. But if you ve got oversized fairings or step boxes, double-check fitment or call us to be sure everything lines up. 9. Can I mix panel styles or lighting setups? Definitely. You can mix smooth panels with lighted ones or combine blank cab panels with wrap-style sleeper panels for a custom setup.Frequently Asked Questions About Peterbilt 379 Cab, Sleeper & Cowl Panels
What years do these cab panels fit, and are there differences between model years?
Our Peterbilt 379 cab panels are designed to fit all 379 models from 1987 to 2007. However, there are slight variations between pre-1993 and post-1993 models, particularly in the cowl panel mounting points and sleeper cab configurations. Extended hood models (127" and 131") may require different cowl panels than standard hood models. Always verify your specific model year and hood length when ordering to ensure proper fitment.
Are these panels made from steel or fiberglass, and which material is better?
We offer both steel and fiberglass options. Steel panels typically range from 16-18 gauge and provide superior durability and original-style fitment, but require proper rust prevention treatment. Fiberglass panels are lighter weight, naturally rust-resistant, and easier to modify, but may require additional reinforcement at mounting points. Most professional shops prefer steel for structural panels like cab corners, while fiberglass works well for cosmetic pieces like fender extensions.
What tools and skills are needed for installation, and how long does it typically take?
Installation requires intermediate to advanced bodywork skills. Essential tools include a welder (MIG recommended), cutting tools (plasma cutter or cutoff wheel), body hammers, and standard hand tools. Cab corner replacements typically take 6-10 hours per side, while full cowl panel replacement can take 8-12 hours. Professional installation is recommended for structural panels, as improper welding can compromise cab integrity. Most panels require trimming and fitting to match your specific truck.
Do these panels come primed or painted, and what prep work is required?
Most panels come in bare metal or gel-coated fiberglass and require surface preparation before painting. Steel panels need immediate priming after installation to prevent rust. Typical prep includes cleaning with acetone or wax remover, sanding with 180-220 grit, applying epoxy primer, and finishing with your choice of paint system. Some panels are available with e-coating or primer, which provides better corrosion resistance but still requires final paint preparation.
What's the difference between aftermarket and OEM-style panels, and how do they affect fit?
OEM-style panels are manufactured to original Peterbilt specifications and typically offer the best fit with minimal modification required. Aftermarket panels may vary in quality - premium aftermarket brands often match OEM quality at lower prices, while economy options may require more fitting work and have less precise stamping. Look for panels with pre-drilled mounting holes and proper flanges. Reviews consistently show that spending slightly more on quality panels saves significant time during installation.
