Semi-Truck Exhaust Parts
Discover an extensive selection of top-quality semi-truck exhaust parts at 4 State Trucks to elevate your rig's style and performance. Whether you're seeking exhaust pipes, clamps, reducers, couplers, or sleek exhaust tips, we've got you covered with durable products from leading manufacturers like Dynaflex and Lincoln Chrome. Our premium aftermarket exhaust components are designed to leave a lasting impression on the road, allowing you to customize your truck to perfection. Elevate your truck's style and performance with 4 State Trucks' premium aftermarket exhaust components.
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BESTfit Muffler Replaces M120834 For Newer Kenworth W900 AeroCab With 2 Catalytic Converters Exhaust Layout
BESTFIT TRUCK PARTS
$799.99BESTfit Muffler Fits Kenworth Aerocab With Dual Mufflers Under Truck * High Quality Muffler* Aluminized* Measurements- Body: 15 Inch- Length: 35 Inch- Overall: 39 Inch- Inlet Diameter: 5 Inch I.D.- Outlet Diameter: 5 Inch I.D.* Type 3 * In And Out Same...$799.99 -
BESTfit 4 Inch Zinc-Coated Flat Top Rain Cap - Replaces 27-400Z
BESTFIT TRUCK PARTS
$29.77BESTfit Rain Cap For 4 Inch Flat Top StacksIntroducing our Zinc-Plated Rain Cap, an essential accessory for your flap top stack. Designed to mount on the outside of the stack, this rain cap effectively prevents rain and debris from entering your exhaust...$29.77 -
BESTfit 90 Degree Elbow Replaces K180-17386-24 For Kenworth W900 AeroCab With Single Muffler
BESTFIT TRUCK PARTS
$86.18BESTfit Elbow At Muffler Inlet Fits Kenworth W/ Single Muffler Replaces OE # K180-17386-24Introducing our Galvanized Steel Elbow, specially crafted for the inlet of your truck's muffler. Designed for trucks featuring a single muffler located underneath...$86.18 -
BESTfit 5 Inch Elbow For 2 Piece Y-Pipe Replaces K180-13637 For Kenworth W900
BESTFIT TRUCK PARTS
$92.30BESTfit Elbow Fits Kenworth Non AeroCabIntroducing our Aluminized Exhaust Elbow, specifically designed for the driver's side with a 45-degree bend, ideal for 2-piece Y-pipe setups. Crafted with durability in mind, this elbow boasts a 5-inch outer...$92.30 -
BESTfit Oval Muffler Replaces MFM12-040-171 For Kenworth & International
BESTFIT TRUCK PARTS
$446.99BESTfit Oval Muffler Fits Kenworth T800, W900, International 9200, 9400 & 9900 * High Quality Oval Muffler* 5 Inch Inlet And Outlet* Sold Individually* Warranty On Oval Muffler Against Defects In Workmanship & Material From Date Of Purchase***High...$446.99 -
BESTfit 10 X 15 X 44 Inch Oval Muffler 5 Inch Inlet & 6 Inch Outlet For International 9000 Series
BESTFIT TRUCK PARTS
$455.99BESTfit Oval Muffler Fits International Fits International 9200, 9400 & 9900 * High Quality Muffler* Made Of Aluminized Steel * Size 10 Inch Tall X 15 Inch Wide X 44 Inch Body Length* Inlet - 5 Inch I.D.* Outlet - 6 Inch I.D.* 48 Inch Length Overall*...$455.99 -
BESTfit 18 Inch Wrap Clamps - Pack Of 2
BESTFIT TRUCK PARTS
$19.37BESTfit Wrap ClampsIntroducing our Clamps, designed to make the installation of heat wrap and sleeves a breeze! With a convenient length of 18 inches, these clamps provide ample coverage for securing your heat management solutions in place. The best...$19.37 -
BESTfit 2 Inch Wide Heat Wrap - 50 Foot Roll
BESTFIT TRUCK PARTS
$119.99BESTfit Heat Wrap For Bare PipesIntroducing our Heat Wrap, a versatile solution for managing heat in various applications. Measuring 2 inches wide and coming in a 50-foot roll, it offers ample coverage for your needs. This heat wrap effectively reduces...$119.99 -
BESTfit DPF 5 X 12 Inch Bead Flex Connector W/ Flange Replaces 21051403 For Volvo & Mack
BESTFIT TRUCK PARTS
$470.99BESTfit 12 Inch Long DPF Flex Connector W/ 5 Inch Flange EndsIntroducing our premium Connector, meticulously crafted in the USA to exacting standards. This aftermarket replacement part features a 5-inch flange by 5-inch flange design and measures 12...$470.99 -
BESTfit DPF 4 X 15.5 Inch Flex Connector W/ Flange For Freightliner Cascadia, Columbia, Coronado
BESTFIT TRUCK PARTS
$773.99BESTfit DPF Flexible Exhaust Connector, Replaces A04-25922-018Introducing our DPF Flexible Exhaust Connector, meticulously crafted in the USA to ensure top-notch quality and performance. Featuring a 4.000-inch flanged inlet and a 5.000-inch flanged...$773.99 -
BESTfit DPF 5 X 18 Inch Flex Connector Replaces A04-27334-018 For Freightliner & Western Star
BESTFIT TRUCK PARTS
$1,003.99BESTfit Exhaust Flexible Connector fits Freightliner and Western Star 5 X 18Introducing our DPF Flexible Exhaust Connector, proudly made in the USA to meet the standards of quality and performance. With a 5.000-inch inner diameter inlet and a flanged...$1,003.99 -
BESTfit 5 X 15.5 Inch Flex Connector Pipe W/ Flange & Band Clamps Replaces A04-258522-018 For Freightliner & Western Star
BESTFIT TRUCK PARTS
$464.99BESTfit Stainless Steel Exhaust Flexible Connector W/ V Band Clamps, Replaces A04-258522-018Introducing our DPF Flexible Exhaust Connector, expertly engineered and manufactured in the USA to ensure top-notch performance. With a 5.000-inch flanged inlet...$464.99