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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Peterbilt 377, 378, 379 5 Inch OD/ID Aluminized 3 Bend Exhaust Y-Pipe Replaces 14-13055 by BESTfit
BESTFIT TRUCK PARTS
$261.99BESTfit Exhaust Y-PipeThe BESTfit 5 Inch Aluminized Y-Pipe Exhaust is a replacement for OE number 14-13055, crafted for Peterbilt's 377, 378 SBA/SFA, and 379 models. Constructed from aluminized steel and manufactured in the USA, it guarantees durability...01-0806000- SKU:
- 01-0806000
- Truck Class:
- Heavy Duty
- Diameter Options:
- 5 Inch
- Location:
- Made In USA
- Material Options:
- Aluminized Steel
- Make:
- Peterbilt
- Style Options:
- Y-Pipe
- Product Type:
- Exhaust
$261.99Qty in Cart: 0Price:$261.99Subtotal: -
Peterbilt 365, 387, 388 Exhaust Bellows Kit For Cummins ISX 15.0 Engine
AUTOMANN USA
$422.99Exhaust Bellows Kit Peterbilt Premium* High Quality Exhaust Bellows Kit* Includes: - (2) Gasket Cummins - (2) V- Band Clamp* Sold Individually* Warranty On Exhaust Bellows Kits Against Defects In Workmanship & Material From Date Of...01-08040001- SKU:
- 01-08040001
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Material Options:
- Steel
- Style Options:
- Cummins
- Product Type:
- Exhaust
$422.99Qty in Cart: 0Price:$422.99Subtotal: -
Lincoln Chrome 4 Inch Marman Seal For Peterbilt 389 Exhaust With DPF System
LINCOLN CHROME
$33.99Marman Seal For Exhaust With DPF System* High Quality Marman Seal* 4 Inch * For Exhaust With DPF* Sold Individually * Warranty On Marman Seal Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part...01-080400002- SKU:
- 01-080400002
- Truck Class:
- Heavy Duty
- Diameter Options:
- 4 Inch
- Material Options:
- Steel
- Make:
- Peterbilt
- Finish Options:
- Chrome-Plated
- Location:
- Made In USA
- Product Type:
- Exhaust
$33.99Qty in Cart: 0Price:$33.99Subtotal: -
Lincoln Chrome 5 Inch Marman Seal For Peterbilt 389 Exhaust With DPF System
LINCOLN CHROME
$29.99Marman Seal For Exhaust With DPF System* High Quality Marman Seal* 5 Inch * For Exhaust With DPF* Sold Individually * Warranty On Marman Seal Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part...01-080400001- SKU:
- 01-080400001
- Diameter Options:
- 5 Inch
- Truck Class:
- Heavy Duty
- Material Options:
- Steel
- Make:
- Peterbilt
- Finish Options:
- Chrome-Plated
- Location:
- Made In USA
- Product Type:
- Exhaust
$29.99Qty in Cart: 0Price:$29.99Subtotal: -
Peterbilt 337, 348, 365, 388 Exhaust Bellows Kit For W/ Cummins ISX 15.0 Engine
AUTOMANN USA
$408.99Exhaust Bellows Kit* High Quality Exhaust Bellows Kit* Includes Clamps - (2) V- Band Clamp - Gaskets 2 -562.U856636 -DPF Gasket Cummins* Sold Individually* Warranty On Exhaust Bellows Kits Against Defects In Workmanship & Material From Date...01-08040000- SKU:
- 01-08040000
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Style Options:
- Cummins
- Material Options:
- Steel
- Product Type:
- Exhaust
$408.99Qty in Cart: 0Price:$408.99Subtotal: -
Chrome 7 Inch Elbow Spool Combo Kit For Peterbilt
LINCOLN CHROME
$1,034.99Lincoln Chrome Elbow Spool Combo Kit Fits Peterbilt* Made Of High Quality Chrome* 7 Inch* Sold Individually* Warranty On Elbow Spool Combo Kit Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part...01-0803002- SKU:
- 01-0803002
- Diameter Options:
- 7 Inch
- Truck Class:
- Heavy Duty
- Material Options:
- Steel
- Make:
- Peterbilt
- Finish Options:
- Chrome-Plated
- Style Options:
- Elbow
- Location:
- Made In USA
- Product Type:
- Exhaust
$1,034.99Qty in Cart: 0Price:$1,034.99Subtotal: -
BESTfit 11 Inch Diameter Muffler 5 ID / ID X 61.5 OAL For Peterbilt 387
BESTFIT TRUCK PARTS
$291.99BESTfit Muffler 55 Inch X 11 InchThis high quality 55 X 11 inch muffler fits Peterbilt 387 and Kenworth T2000 models. The muffler has an overall 5 inch ID and comes with a 1 year warranty.* High Quality Muffler* 11 Inch x 55 Inch x 61.5 Inch* Overall 5...01-080202- SKU:
- 01-080202
- Diameter Options:
- 5 Inch
- Truck Class:
- Heavy Duty
- Material Options:
- Steel
- Make:
- Peterbilt
- Finish Options:
- Chrome-Plated
- Length Options:
- 61 1/2 Inch
- Product Type:
- Exhaust
$291.99Qty in Cart: 0Price:$291.99Subtotal: -
9 Inch Diameter Muffler With Built In Y-Pipe For Peterbilt 378, 379
BESTFIT TRUCK PARTS
$2,434.99BESTfit Exhaust Y-Pipe With Muffler Fits PeterbiltOptimize your Peterbilt's exhaust system with the BESTfit Steel Exhaust Y-Pipe, complete with a 9-inch muffler. This premium exhaust component is made from high-quality steel, offering unmatched longevity...01-080200- SKU:
- 01-080200
- Truck Class:
- Heavy Duty
- Location:
- Made In USA
- Material Options:
- Steel
- Make:
- Peterbilt
- Length Options:
- 5 Inch
- Product Type:
- Exhaust
$2,434.99Qty in Cart: 0Price:$2,434.99Subtotal: -
BESTfit 6 Inch Chrome Long Leg Elbow Reduces To 5 Inch OD W/ Tapered Top For Peterbilt 378, 379, 389 Glider
BESTFIT TRUCK PARTS
$747.99BESTfit 6 Inch Chrome Long Leg Elbow Reduces To 5 Inch O.D. W/ Tapered Top Fits Peterbilt 378, 379 & 389 GliderTransform your exhaust with the BESTfit 6 Inch Chrome Long Leg Elbow, compatible with Peterbilt 378, 379, and 389 Glider models. This...01-080165004- SKU:
- 01-080165004
- Truck Class:
- Heavy Duty
- Diameter Options:
- 6 Inch
- Style Options:
- Elbow
- Material Options:
- Steel
- Make:
- Peterbilt
- Finish Options:
- Chrome-Plated
- Product Type:
- Exhaust
$747.99Qty in Cart: 0Price:$747.99Subtotal: -
BESTfit 5 Inch Turbo Pipe Extension Elbow Replaces 14-13409 For Peterbilt 357, 378, 379
BESTFIT TRUCK PARTS
$60.58Turbo Extension Pipe Fits PeterbiltDesigned for trucks with the exhaust mounted above the frame, this turbo extension pipe is made of aluminized steel and has a single 20 degree bend. It has a 5 inch ID inlet and a 5 inch OD outlet. The pipe fits 1995...01-08013409- SKU:
- 01-08013409
- Truck Class:
- Heavy Duty
- Diameter Options:
- 5 Inch
- Material Options:
- Aluminized Steel
- Degree Options:
- 20
- Make:
- Peterbilt
- Product Type:
- Exhaust
$60.58Qty in Cart: 0Price:$60.58Subtotal: -
On SaleLimited Quantity Available
American Eagle Pickett Elbow Reduces From 10 To 8 Inches For Peterbilt 379
AMERICAN EAGLE EXHAUST
Now: $678.99Was: $969.9910-8 Inch Reducer Pickett ElbowThe American Eagle Pickett Elbow offers an exceptional upgrade for Peterbilt 379 owners, featuring a reduction from 10 inches to 8 inches. Made from stainless steel, this elbow combines durability with superior performance...01-0801108006- SKU:
- 01-0801108006
- Truck Class:
- Heavy Duty
- Material Options:
- Stainless Steel
- Make:
- Peterbilt
- Diameter Options:
- 10 Inch
- Style Options:
- Elbow
- Product Type:
- Exhaust
Now: $678.99Was: $969.99Qty in Cart: 0Price:Now: $678.99Was: $969.99Subtotal: -
BESTfit 5 OD X 18 Inch Intermediate Straight Pipe Replaces 14-13940-0460 For Peterbilt 357, 378, 379
BESTFIT TRUCK PARTS
$159.99BESTfit Intermediate Pipe Plain Fits PeterbiltThis straight 5 OD x 18-inch chrome replacement pipe is designed for select Peterbilt 357, 378, and 379 trucks with dual exhaust systems above the frame. Crafted from premium materials, it promises durability...01-080104600- SKU:
- 01-080104600
- Diameter Options:
- 5 Inch
- Truck Class:
- Heavy Duty
- Material Options:
- Aluminized Steel
- Make:
- Peterbilt
- Length Options:
- 18 Inch
- Product Type:
- Exhaust
$159.99Qty in Cart: 0Price:$159.99Subtotal: -
Ss Exhaust Turbo Flange Adapter, 52 Degree Bend W/ Pyrometer Port For Peterbilt 378, 379
BESTFIT TRUCK PARTS
$419.99Peterbilt Stainless Steel Exhaust Turbo Flange AdapterUpgrade your Peterbilt 378 or 379 exhaust system with the Stainless Steel Exhaust Turbo Flange Adapter, featuring a 52-degree bend and a convenient pyrometer port. Constructed from high-quality...01-0801009- SKU:
- 01-0801009
- Diameter Options:
- 5 Inch
- Truck Class:
- Heavy Duty
- Location:
- Made In USA
- Material Options:
- Stainless Steel
- Make:
- Peterbilt
- Style Options:
- Flanged
- Product Type:
- Exhaust
$419.99Qty in Cart: 0Price:$419.99Subtotal: -
5 Inch OD Multi-Bend Turbo Exhaust Down Pipe - Short For Peterbilt 389, 388, 386 With Detroit / CAT Engine
LINCOLN CHROME
$222.99Turbo Multi-Bend Down PipeUpgrade your Peterbilt 389, 388, or 386 with the Turbo Down Pipe! Specifically designed for trucks with Detroit or CAT motors, this short down pipe is built for enhanced performance. Give your truck the boost!* High Quality...01-0801008- SKU:
- 01-0801008
- Truck Class:
- Heavy Duty
- Diameter Options:
- 5 Inch
- Material Options:
- Stainless Steel
- Make:
- Peterbilt
- Finish Options:
- Chrome-Plated
- Location:
- Made In USA
- Product Type:
- Exhaust
$222.99Qty in Cart: 0Price:$222.99Subtotal: -
Peterbilt 389, 388, 386 Turbo Down Pipe For Exhaust With Cat Motor
LINCOLN CHROME
$195.99Turbo Multi Bend Down Pipe Fits 3406E Caterpillar EngineThis turbo down pipe is a perfect fit for Peterbilt 389, 388, and 386 trucks with CAT or Detroit engines. It's designed to optimize exhaust flow, improving overall performance. A solid upgrade for...01-0801007- SKU:
- 01-0801007
- Diameter Options:
- 5 Inch
- Truck Class:
- Heavy Duty
- Material Options:
- Stainless Steel
- Make:
- Peterbilt
- Finish Options:
- Chrome-Plated
- Style Options:
- Elbow
- Location:
- Made In USA
- Product Type:
- Exhaust
$195.99Qty in Cart: 0Price:$195.99Subtotal: -
BESTfit 5 Inch Turbo Pipe Replaces 14-15329 For Peterbilt 377, 378 & 379
BESTFIT TRUCK PARTS
$166.99BESTfit Turbo Pipe Fits PeterbiltEnhance your Peterbilt 377, 378, or 379 with the BESTfit 5 Inch Turbo Pipe, specifically engineered to replace OE number 14-15329 and Dynaflex number 09-8-101-220. Made of aluminized steel, this turbo pipe boasts a 5-inch...01-0801006- SKU:
- 01-0801006
- Diameter Options:
- 5 Inch
- Truck Class:
- Heavy Duty
- Material Options:
- Aluminized Steel
- Make:
- Peterbilt
- Product Type:
- Exhaust
$166.99Qty in Cart: 0Price:$166.99Subtotal: -
Aluminized Steel Exhaust Down Pipe Replaces 14-14194 For Peterbilt 375, 377, 378, 379
AFTERMARKET
$181.99Exhaust Down Pipe Below Turbo Pipe Fits PeterbiltRevitalize your Peterbilt's exhaust system with the Aluminized Steel Exhaust Down Pipe, designed to replace OE number 14-14194 and Dynaflex number 09-8-151-220. Crafted from aluminized steel, this down...01-0801003- SKU:
- 01-0801003
- Truck Class:
- Heavy Duty
- Material Options:
- Aluminized Steel
- Make:
- Peterbilt
- Product Type:
- Exhaust
$181.99Qty in Cart: 0Price:$181.99Subtotal: -
BESTfit 6 Inch OD Chrome Exhaust Elbow Tapered To Inch OD, Passenger Side For Peterbilt 377
BESTFIT TRUCK PARTS
$494.99BESTfit Passenger Side Peterbilt 377 Chrome Exhaust Bend Elbow* High Quality Exhaust Elbow* Chrome-Plated Steel* Passenger Side* 6 Inch O.D. Tapered To 5 Inch O.D.* Made In USA* Sold Individually * Warranty On Exhaust Elbows Against Defects In...01-080100009- SKU:
- 01-080100009
- Diameter Options:
- 6 Inch
- Truck Class:
- Heavy Duty
- Material Options:
- Steel
- Make:
- Peterbilt
- Finish Options:
- Chrome-Plated
- Style Options:
- Elbow
- Location:
- Made In USA
- Product Type:
- Exhaust
$494.99Qty in Cart: 0Price:$494.99Subtotal: -
BESTfit 6 Inch OD Chrome Exhaust Elbow Tapered To Inch OD, Driver Side For Peterbilt 377
BESTFIT TRUCK PARTS
$494.99BESTfit Driver Side Peterbilt 377 Chrome Exhaust Bend Elbow* High Quality Exhaust Elbow* Chrome-Plated Steel* Driver Side* 6 Inch O.D. Tapered To 5 Inch O.D.* Made In USA* Sold Individually * Warranty On Exhaust Elbows Against Defects In Workmanship &...01-080100008- SKU:
- 01-080100008
- Diameter Options:
- 6 Inch
- Truck Class:
- Heavy Duty
- Material Options:
- Steel
- Make:
- Peterbilt
- Finish Options:
- Chrome-Plated
- Style Options:
- Elbow
- Location:
- Made In USA
- Product Type:
- Exhaust
$494.99Qty in Cart: 0Price:$494.99Subtotal: -
Aluminized Turbo Down Pipe, 4 Inch OD, For Peterbilt 386
AUTOMANN USA
$173.9923 Inch Long Turbo Down Pipe W/ 4 Inch OD & 3.85 Inch ID* High Quality Turbo Down Pipe* Aluminized * 4.00 Inch OD Outlet* 4.60 Inch Flange OD* 3.85 Inch ID At Inlet* Dimensions 23 X 6 X 4 Weight 5.58 Pounds* Sold Individually* Warranty On Turbo Down Pipe...01-080100007- SKU:
- 01-080100007
- Truck Class:
- Heavy Duty
- Material Options:
- Aluminized Steel
- Make:
- Peterbilt
- Diameter Options:
- 4 Inch
- Product Type:
- Exhaust
$173.99Qty in Cart: 0Price:$173.99Subtotal:
