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 7 I.D. - 5 I.D. X 8 Inch Chrome Exhaust Reducer
BESTFIT TRUCK PARTS
$122.99BESTfit Exhaust ReducerElevate your exhaust system with our Chrome-Plated Steel Exhaust Reducer, expertly designed to transition seamlessly from a 7-inch inner diameter to a 5-inch inner diameter. Crafted with precision and durability in mind, this...$122.99 -
BESTfit 8 Inch Chrome Steel Exhaust Adapter 7 To 5 Inch O.D.
BESTFIT TRUCK PARTS
$128.99BESTfit Chrome-Plated Steel Exhaust Adapter Reducer 7 Inch O.D. to 5 Inch O.D.Upgrade your exhaust system with our Chrome-Plated Steel Exhaust Reducer, designed to seamlessly adapt from a 7-inch outer diameter at the top to a 5-inch outer diameter at the...$128.99 -
On Sale
Peterbilt 378 BESTfit Exhaust Elbow Replaces OEM 14-15502
BESTFIT TRUCK PARTS
Now: $540.39Was: $771.99BESTfit Exhaust Elbow Fits PeterbiltUpgrade your piping system with our quality Pipe, proudly made in the USA to ensure superior craftsmanship and durability. Designed for reliable performance, each pipe is sold individually, providing you with...Now: $540.39Was: $771.99 -
Peterbilt 379 BESTfit 5 Inch ID/O.D. 90 Degree Elbow Pipe, Replaces 14-13433
BESTFIT TRUCK PARTS
$80.37BESTfit Lower Elbow Below Turbo Frame PipeElevate your exhaust system with our Galvanized Steel Elbow Pipe, proudly made in the USA for superior quality and durability. Designed with precision, this elbow pipe features a 5-inch inside diameter measuring...$80.37 -
Peterbilt 357 & 378 BESTfit 5 Inch Plain Exhaust Elbow Replaces 14-15503 For Passenger Side
BESTFIT TRUCK PARTS
$701.99BESTfit Exhaust Elbow Below Muffler Fits PeterbiltEnhance your exhaust system with our 5-Inch Plain Exhaust Elbow, designed for the passenger side. Crafted for durability and performance, this aftermarket replacement part is sold individually for your...$701.99 -
Peterbilt 379 BESTfit 5 Inch 75 Degree Aluminized Exhaust Elbow Below Turbo Pipe For Replaces 14-13395
BESTFIT TRUCK PARTS
$246.99Aluminized Steel 75 Degree Exhaust Elbow W/ 5 Inch I.D. Inlet & 5 Inch O.D. OutletUpgrade your exhaust system with our Aluminized Steel Exhaust Elbow. Crafted with precision from quality materials, this elbow features a 5-inch I.D. inlet and a 5-inch O.D...$246.99 -
Peterbilt BESTfit 5 Inch 90 Degree Lower Elbow Below Turbo Pipe Replaces 14-09456
BESTFIT TRUCK PARTS
$97.40Steel 90 Degree Elbow PipeUpgrade your engine setup with our durable Steel Elbow. With a 5-inch length and 90-degree angle, this elbow is designed for use below the turbo, ensuring optimal performance. Made in the USA and sold individually as an...$97.40 -
BESTfit 9 Inch Dia. Muffler With 5 Inch Inlet & Outlet
BESTFIT TRUCK PARTS
$151.99BESTfit 9 Inch Diameter Muffler With 5 Inch Inlet & Outlet * High Quality Muffler* 9 Inch Diameter* 5 Inch Inlet And Outlet* Sold Individually* Made In The USA* Warranty On Muffler Against Defects In Workmanship & Material From Date Of Purchase.***High...$151.99 -
BESTfit 10 Inch Diameter Muffler With 5 Inch Inlet & Outlet - Replaces 04-21774-001
BESTFIT TRUCK PARTS
$99.99BESTfit 10 Inch Diameter Muffler With 5 Inch Inlet & Outlet * High Quality Muffler* 10 Inch Body Diameter* 44 1/2 Inch Body Length* 51 Inch Length * 5 Inch Inlet I.D.* 5 Inch Outlet I.D.* 3 Inch Inlet Tube Length* Standard Type 1* Sold Individually* Made...$99.99 -
BESTfit 3.75 Inch Sleeve For Upper Exhaust Mount For Kenworth
BESTFIT TRUCK PARTS
$33.65BESTfit Sleeve For Upper Exhaust Mount Fits Kenworth * High Quality Sleeve* Slides Through Center Of Exhaust Bushing On The Side Of The Cab* 3.75 Inch Length Overall* Sold Individually* Warranty On Sleeve Against Defects In Workmanship & Material From...$33.65 -
Kenworth W900L BESTfit Chrome 7 To 5 Inch Exhaust Elbow, Passenger Side For Aero W/ 45 Inch Steps
BESTFIT TRUCK PARTS
$864.99BESTfit Passenger Side 7 To 5 Inch Exhaust Elbow, Replaces OE Number K18018616RCPUpgrade your exhaust system with this sleek Chrome-Plated Exhaust Elbow, designed to enhance both style and performance. Crafted from durable materials, this elbow features...$864.99 -
Kenworth BESTfit 5 Inch Exhaust Y Pipe Extension For AeroCab With Single Muffler
BESTFIT TRUCK PARTS
$128.99BESTfit Steel Exhaust Extension For Y-Pipe W/ 5 Inch ID Inlet & 5 Inch O.D. OutletEnhance your vehicle's exhaust system with this robust Exhaust Pipe designed for early Aerocab models with a 1-muffler configuration under the truck. Constructed from...$128.99