
Peterbilt Exhaust Parts
Upgrade your big rig with premium Peterbilt exhaust systems from 4 State Trucks. Our extensive collection of Peterbilt semi truck exhaust components delivers the perfect blend of performance and style. From chrome stacks to high-flow mufflers, we offer everything to enhance your Peterbilt exhaust setup. Improve fuel efficiency, reduce backpressure, and turn heads with our top-quality Peterbilt exhaust solutions. Whether you're after a subtle upgrade or a complete custom overhaul, 4 State Trucks has the Peterbilt exhaust options to make your truck rumble with power and pride on the open road.
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BESTfit Chrome West Coast Turn Top Stack - 48 Inch X 7 Inch O.D.
BESTFIT TRUCK PARTS
$463.99BESTfit 7 X 48 Inch West Coast Turnout Chrome Top Stack - Replaces 25P-70048CPUpgrade your truck's exhaust system with our aftermarket replacement exhaust stack. Crafted from durable chrome-plated steel, this stack features a West Coast turn design for a...$463.99 -
BESTfit DPF Filter Clamp - Replaces 2871862
BESTFIT TRUCK PARTS
$56.09BESTfit DPF Filter ClampLooking for a filter clamp for your DPF filters 29-0809011? Our aftermarket replacement part, sold individually, is the perfect fit. Replacing OEM number 2871862, it ensures a secure hold for your filters, keeping your vehicle...$56.09 -
BESTfit DPF Filter Clamp - Replaces 2871863 & 21445455
BESTFIT TRUCK PARTS
$64.25BESTfit Filter Clamp For DPFIn need of a filter clamp? Our aftermarket replacement part, sold individually, is here for you. It seamlessly replaces OE numbers 2871863 and 21445455, ensuring your vehicle's filter is securely held in place. - Filter Clamp-...$64.25 -
BESTfit DPF Gasket Replaces 2866337 For Cummins
BESTFIT TRUCK PARTS
$17.84BESTfit DPF Gasket Fits CumminsLooking for a replacement gasket that won't break the bank? Our aftermarket gasket is designed to replace OEM number 2866337 and is sold individually. Rest assured, you're getting a quality replacement part without the OEM...$17.84 -
BESTfit Chrome 7 Inch O.D. Flat Top Exhaust Stack - 48 Inch Length
BESTFIT TRUCK PARTS
$379.99BESTfit 7 Inch Chrome 48 Inch Flat Top Exhaust Stack With Plain End - O.D. * High Quality Exhaust Stack * Flat Top Style - Straight Cut* Made Of Chrome-Plated Steel* 7 Inch O.D. Pipe - Works With Seamless Design Elbows And Pipes* 48 Inch Length* Sold...$379.99 -
BESTfit Exhaust Elbow Replaces 14-13845RC For Peterbilt 378, 379 Passenger Side
BESTFIT TRUCK PARTS
$305.90BESTfit Exhaust Elbow Fits Peterbilt 378 & 379Upgrade your vehicle's exhaust system with our premium aftermarket Exhaust Elbow designed for the passenger side! Crafted from durable chrome-plated steel, this replacement part ensures both style and...$305.90 -
BESTfit Exhaust Elbow Replaces 14-13845LC For Peterbilt 378, 379 Driver Side
BESTFIT TRUCK PARTS
$296.99BESTfit Exhaust Elbow Fits Peterbilt 378 & 379 Driver SideUpgrade your vehicle's exhaust system with our premium aftermarket Exhaust Elbow for the driver's side! Crafted from durable chrome-plated steel, this replacement part ensures both style and...$296.99 -
BESTfit 8 To 5 X 96 Inch Curve Turn Stack
BESTFIT TRUCK PARTS
$775.99BESTfit 8-5 X 96 Inch Turnout StackUpgrade your vehicle's exhaust system with our chrome-plated steel Exhaust Stack! Featuring a classic turnout style, this aftermarket replacement part boasts an 8 to 5-inch inner diameter for optimal performance. With a...$775.99 -
On Sale
BESTfit Heat Shield For Multiple Models
BESTFIT TRUCK PARTS
Now: $43.76Was: $62.52BESTfit Heat Shield Fits Multiple ModelsProtect your vehicle's components with our versatile heat shield! This aftermarket replacement part measures 3 to 6 inches by 7 inches, suitable for a 5-inch pipe. Sold individually, it offers a cost-effective...Now: $43.76Was: $62.52 -
On Sale
BESTfit Chrome Flat Top Stack - 48 Inch X 5 Inch O.D.
BESTFIT TRUCK PARTS
Now: $175.95Was: $211.99BESTfit Chrome 5 Inch Straight Cut Top Stack 48 Inches TallIntroducing our chrome-plated steel exhaust stack, designed to elevate the look of your vehicle while delivering reliable performance. With a sleek flat top style and a 5-inch O.D. chrome exhaust...Now: $175.95Was: $211.99 -
BESTfit 55 X 11 Inch Muffler For Peterbilt 387
BESTFIT TRUCK PARTS
$291.99BESTfit Muffler 55 Inch X 11 Inch * High Quality Muffler* 11 Inch x 55 Inch x 61.5 Inch* Overall 5 Inch I.D. In And Out* Sold Individually* Warranty On Mufflers Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket...$291.99 -
BESTfit 5 X 36 Inch Turn Out Top Stack
BESTFIT TRUCK PARTS
$182.99BESTfit 5 X 36 Inch Turn Out Top StackIntroducing our Top Stack, crafted in a Turn Out style for enhanced performance and aesthetics. With a diameter of 5 inches and a length of 3 feet, this stack ensures efficient exhaust ventilation for your vehicle...$182.99