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 378, 379, 389, 389 Glider Chrome 5 Inch Tapered Y-Pipe by BESTfit
BESTFIT TRUCK PARTS
$441.99BESTfit 5 Inch Taper Lock Y Exhaust PipeEnhance your exhaust system with the BESTfit Chrome 5 Inch Tapered Y-Pipe, designed to fit Peterbilt 378, 379, 389, and 389 Glider models. This premium Y-Pipe is manufactured from chrome-plated steel, ensuring a...01-08065000- SKU:
- 01-08065000
- Truck Class:
- Heavy Duty
- Diameter Options:
- 5 Inch
- Material Options:
- Steel
- Degree Options:
- 90
- Make:
- Peterbilt
- Finish Options:
- Chrome-Plated
- Style Options:
- Y-Pipe
- Product Type:
- Exhaust
$441.99Qty in Cart: 0Price:$441.99Subtotal: -
BESTfit Exhaust Tee Replaces 14-13978-0150 For Peterbilt 379 Day Cab With Mufflers Mounted Behind The Cab
BESTFIT TRUCK PARTS
$676.99BESTfit Exhaust Y Pipe Fits Peterbilt 379 Day Cab With Behind-The-Cab MufflersFor Peterbilt 379 day cab owners looking to replace their current exhaust tee, look no further than the BESTfit Exhaust Tee is the optimal choice. Sold individually, this...01-0806139780- SKU:
- 01-0806139780
- Truck Class:
- Heavy Duty
- Diameter Options:
- 5 Inch
- Material Options:
- Steel
- Make:
- Peterbilt
- Finish Options:
- Chrome-Plated
- Style Options:
- Y-Pipe
- Product Type:
- Exhaust
$676.99Qty in Cart: 0Price:$676.99Subtotal: -
Peterbilt 359 5 Inch ID/OD Steel Exhaust Y-Pipe By BESTfit Replaces 14-14055
BESTFIT TRUCK PARTS
$349.99BESTfit Aluminized Steel Exhaust Y-Pipe Elbow Replaces OE 14-14055This replacement for your exhaust y-pipe elbow is crafted from sturdy aluminized steel. This durable component features a 5-inch diameter inlet and outlet, ensuring good fit for your...01-0806003- SKU:
- 01-0806003
- 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
- Availability:
- Ready To Ship
$349.99Qty in Cart: 0Price:$349.99Subtotal: -
BESTfit 5 Inch ID/OD Chrome Y Exhaust Pipe Replaces 14-13055 For Peterbilt 377, 378 SBA, 378 SFA, 379
BESTFIT TRUCK PARTS
$549.99BESTfit Chrome-Plated Steel Exhaust Y-Pipe W/ 5 Inch ID Inlet & 5 Inch O.D. OutletsIntroducing the BESTfit Chrome 5 Inch ID/O.D. Y Exhaust Pipe, a replacement for OE number 14-13055. Designed to fit Peterbilt 377, 378 SBA/SFA, and 379 models, this...01-0806002- SKU:
- 01-0806002
- Diameter Options:
- 5 Inch
- Truck Class:
- Heavy Duty
- Location:
- Made In USA
- Material Options:
- Steel
- Make:
- Peterbilt
- Finish Options:
- Chrome-Plated
- Style Options:
- Y-Pipe
- Product Type:
- Exhaust
$549.99Qty in Cart: 0Price:$549.99Subtotal: -
Peterbilt 377, 378, 379, 386 5 Inch OD Aluminized 3 Bend Exhaust Y-Pipe 14-15353-0150 by BESTfit
BESTFIT TRUCK PARTS
$347.99BESTfit Aluminized Steel Exhaust Y-PipeUpgrade your Peterbilt 377, 378, 379, or 386's exhaust with the BESTfit 5 Inch Aluminized Y-Pipe Exhaust. Crafted from high-quality aluminized steel for superior durability and performance, this Y-Pipe features a 5...01-0806001- SKU:
- 01-0806001
- Diameter Options:
- 5 Inch
- Truck Class:
- Heavy Duty
- Location:
- Made In USA
- Material Options:
- Aluminized Steel
- Make:
- Peterbilt
- Style Options:
- Y-Pipe
- Product Type:
- Exhaust
- Availability:
- Ready To Ship
$347.99Qty in Cart: 0Price:$347.99Subtotal: -
Peterbilt 377, 378, 379 5 Inch OD/ID Aluminized 3 Bend Exhaust Y-Pipe Replaces 14-13055 by BESTfit
BESTFIT TRUCK PARTS
$327.99BESTfit 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
- Availability:
- Ready To Ship
$327.99Qty in Cart: 0Price:$327.99Subtotal: -
Peterbilt 365, 387, 388 Exhaust Bellows Kit For Cummins ISX 15.0 Engine
AUTOMANN USA
$444.99Exhaust Bellows Kit Peterbilt PremiumKeep your Peterbilt 365, 387, or 388 running smoothly with this high-quality Exhaust Bellows Kit designed specifically for Cummins ISX 15.0 engines. Engineered to absorb vibrations and thermal expansion, this kit...01-08040001- SKU:
- 01-08040001
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Material Options:
- Steel
- Style Options:
- Cummins
- Product Type:
- Exhaust
$444.99Qty in Cart: 0Price:$444.99Subtotal: -
Lincoln Chrome 4 Inch Marman Seal For Peterbilt 389 Exhaust With DPF System
LINCOLN CHROME
$33.99Marman Seal For Exhaust With DPF SystemUpgrade your Peterbilt 389 exhaust system with the Lincoln Chrome 4 Inch Marman Seal, designed specifically for models equipped with DPF systems. This high-quality chrome seal ensures a tight, leak-proof connection...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
$31.31Marman Seal For Exhaust With DPF SystemThe Lincoln Chrome 5 Inch Marman Seal is engineered for Peterbilt 389 models with DPF exhaust systems, providing a reliable and tight seal to prevent exhaust leaks. Crafted from durable chrome materials, this seal...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
$31.31Qty in Cart: 0Price:$31.31Subtotal: -
Peterbilt 337, 348, 365, 388 Exhaust Bellows Kit For W/ Cummins ISX 15.0 Engine
AUTOMANN USA
$408.99Exhaust Bellows KitThis Exhaust Bellows Kit is designed for Peterbilt 337, 348, 365, and 388 trucks with Cummins ISX 15.0 engines, providing a reliable solution for flexible exhaust connections. Made to handle harsh operating conditions, the bellows...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 PeterbiltAdd serious shine and functionality to your Peterbilt with this Lincoln Chrome 7 Inch Elbow Spool Combo Kit. Designed for a clean fit and smooth airflow, this kit includes everything you need to complete...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
$364.99BESTfit 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
$364.99Qty in Cart: 0Price:$364.99Subtotal: -
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: -
On SaleLimited Quantity Available
BESTfit 6 Inch Chrome Long Leg Elbow Reduces To 5 Inch OD W/ Tapered Top For Peterbilt 378, 379, 389 Glider
BESTFIT TRUCK PARTS
Now: $552.99Was: $789.99BESTfit 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
- Availability:
- Ready To Ship
Now: $552.99Was: $789.99Qty in Cart: 0Price:Now: $552.99Was: $789.99Subtotal: -
BESTfit 5 Inch Turbo Pipe Extension Elbow Replaces 14-13409 For Peterbilt 357, 378, 379
BESTFIT TRUCK PARTS
$63.33Turbo 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
$63.33Qty in Cart: 0Price:$63.33Subtotal: -
Limited Quantity Available
American Eagle Pickett Elbow Reduces From 10 To 8 Inches For Peterbilt 379
AMERICAN EAGLE EXHAUST
$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
- Availability:
- Ready To Ship
$969.99Qty in Cart: 0Price:$969.99Subtotal: -
BESTfit 5 OD X 18 Inch Intermediate Straight Pipe Replaces 14-13940-0460 For Peterbilt 357, 378, 379
BESTFIT TRUCK PARTS
$170.99BESTfit 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
- Availability:
- Ready To Ship
$170.99Qty in Cart: 0Price:$170.99Subtotal: -
Ss Exhaust Turbo Flange Adapter, 52 Degree Bend W/ Pyrometer Port For Peterbilt 378, 379
BESTFIT TRUCK PARTS
$469.99Peterbilt 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
$469.99Qty in Cart: 0Price:$469.99Subtotal: -
5 Inch OD Multi-Bend Turbo Exhaust Down Pipe - Short For Peterbilt 389, 388, 386 With Detroit / CAT Engine
LINCOLN CHROME
$234.99Turbo 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
$234.99Qty in Cart: 0Price:$234.99Subtotal: -
Peterbilt 389, 388, 386 Turbo Down Pipe For Exhaust With Cat Motor
LINCOLN CHROME
$197.99Turbo 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
- Availability:
- Ready To Ship
$197.99Qty in Cart: 0Price:$197.99Subtotal:
