Shop Peterbilt 379 Exhaust Parts, Stacks & Systems
Upgrade your rig with premium aftermarket
Peterbilt 379 exhaust parts. Whether you need to buy gleaming
Peterbilt 379 exhaust stacks, heavy-duty
Peterbilt 379 exhaust pipes, or a direct-fit replacement
Peterbilt 379 muffler, we have the inventory to restore and enhance your truck. Achieve a leak-free setup, reduce vibration, improve noise dampening, and give your truck a clean, custom-finished look. You can also shop related parts for newer models, like
Peterbilt 389 exhaust upgrades.
Complete Your Peterbilt 379 Exhaust Upgrade
- Peterbilt 379 Exhaust Stacks & Tops: Shop our selection of 5-inch to 8-inch miter, flat, or bullseye tops in show-quality chrome or durable aluminized steel.
- Peterbilt 379 Mufflers & DPFs: Maintain commercial emissions compliance and cabin comfort with direct-replacement
diesel particulate filters and high-flow
Peterbilt 379 mufflers.
- Peterbilt 379 Exhaust Pipes & Components: Route your system efficiently with our heavy-duty inventory of
Peterbilt 379 exhaust pipes, Y-pipes, flex tubing, and
exhaust elbows.
- Clamps, Brackets & Mounting Hardware: Prevent rattling and securely mount your heavy-duty exhaust with frame brackets, wide-band clamps, and bushings.
- Complete Exhaust Kits: Eliminate the guesswork with pre-packaged, full-system
Peterbilt 379 exhaust kits designed for a seamless, bolt-on installation.
Every component matters for optimal engine performance. A high-quality
Peterbilt 379 muffler keeps engine drone down and improves driver comfort, while Diesel Particulate Filters (DPFs) reduce soot buildup to meet emission standards. Upgrading to aftermarket stainless or aluminized steel
Peterbilt 379 exhaust pipes safely routes fumes away from the cab. Don't forget your hardware:
exhaust brackets, clamps, grommets, and rubber gaskets perfectly align your new
Peterbilt 379 exhaust stacks, preventing rattle and shake on the road.
Signs It's Time to Buy a Replacement Peterbilt 379 Exhaust
- Excessively loud exhaust noise indicating a failing muffler.
- Visible rust, blow-out holes, or cracks in the exhaust pipes.
- Sluggish engine acceleration or a decrease in fuel efficiency.
- Rattling or hissing from underneath the truck, signaling loose brackets or system leaks.
- Strong diesel exhaust smells inside the cab.
Frequently Asked Questions About Peterbilt 379 Exhaust Parts
Will these exhaust parts fit my specific year Peterbilt 379?
Most of our Peterbilt 379 exhaust parts are designed to fit models from 1987 to 2007. However, there are some variations between early models (1987-1999) and later models (2000-2007), particularly in mounting bracket positions and pipe lengths. Always check the product description for specific year compatibility, or contact our team with your OEM number for verification. Extended hood models may require different stack lengths than standard hood configurations.
What's the difference between aluminized and chrome exhaust stacks?
Aluminized steel stacks offer good corrosion resistance at a lower price point and typically last 3-5 years depending on conditions. Chrome stacks provide superior shine and durability, lasting 7-10 years with proper care, but cost approximately 40-60% more. Chrome requires regular polishing to maintain appearance, while aluminized develops a matte finish over time. For trucks in harsh winter climates with heavy road salt exposure, chrome is often worth the investment.
Do I need special tools or professional installation for exhaust components?
Basic exhaust stack replacement typically requires standard hand tools including socket sets, wrenches, and potentially a reciprocating saw for removing old components. Most installations take 2-4 hours for experienced DIY mechanics. However, complete exhaust system overhauls involving manifolds or turbo connections should be performed by professionals due to precise torque specifications and potential warranty implications. Stack clamps and rain caps can usually be installed in under 30 minutes with basic tools.
What size exhaust stack should I choose for my 379?
The most common sizes for Peterbilt 379 trucks are 5-inch and 6-inch diameter stacks. Stock configurations typically use 5-inch, which provides adequate flow for most engines up to 500 HP. Six-inch stacks are recommended for high-performance builds over 500 HP or for the traditional aesthetic look. Stack height varies from 36 to 72 inches, with 48-60 inches being most popular. Consider your garage door clearance and state height restrictions when selecting length.
How do I prevent exhaust stack discoloration and maintain appearance?
Exhaust discoloration occurs from heat cycling and is normal, especially on chrome stacks near the base. To minimize bluing, ensure proper engine tuning and avoid extended idling. For chrome stacks, use specialized chrome polish monthly and apply heat-resistant wax after cleaning. Never use abrasive cleaners or steel wool on chrome. For aluminized stacks, mild soap and water work best. Installing heat shields between the stack and cab can reduce heat damage to paint and minimize discoloration in the lower stack sections.
Peterbilt 379 Chrome Stacks & Tops
Peterbilt 379 Clamps, Brackets & Mounting
Peterbilt 379 DPF & Mufflers
Peterbilt 379 Elbows, Piping & Comp.
Peterbilt 379 Exhaust Kits
