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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On SaleLimited Quantity Available
Inlet Nox Nitrogen Oxide Sensor Replaces 2871978, 2894939 For Cummins ISX Newer
DAYTON / DORMAN
Now: $76.36Was: $331.99Nitrogen Oxide Sensor Inlet Of Diesel Particulate Filter Replaces 2871978, 2894939, 2894939RX, 4984053, 4984576The NOx sensor for Cummins ISX 2013 and newer models features a 590mm lead and operates at 12 volts. It serves as a replacement for multiple...29-080600003- SKU:
- 29-080600003
- Truck Class:
- Heavy Duty
- Make:
- Kenworth
- Make:
- Peterbilt
- Product Type:
- Exhaust
Now: $76.36Was: $331.99Qty in Cart: 0Price:Now: $76.36Was: $331.99Subtotal: -
On SaleLimited Quantity Available
Outlet Nox Nitrogen Oxide Sensor Replaces 1954666PE, 1954666PRX, 2872947NX, 4326869RX For Cummins ISB 6.7
DAYTON / DORMAN
Now: $197.24Was: $365.99Nitrogen Oxide Sensor Outlet Of Diesel Particulate Filter* High Quality Nitrogen Oxide Sensor* NOx Sensor For Cummins ISB Engine* Connector Color: Black And Silver* Connector Gender: Female* Connector Shape: Oval* Package Contents: Sensor With Module*...29-080600002- SKU:
- 29-080600002
- Truck Class:
- Heavy Duty
- Make:
- Freightliner
- Product Type:
- Exhaust
Now: $197.24Was: $365.99Qty in Cart: 0Price:Now: $197.24Was: $365.99Subtotal: -
Inlet Nox Nitrogen Oxide Sensor Replaces 2872297, 2894945NX, 5293295NX, 5293295RX For Cummins ISB 6.7L
DAYTON / DORMAN
$621.99Nitrogen Oxide Sensor Inlet Of Diesel Particulate FilterThe NOx sensor for Cummins is equipped with an 890mm lead and is compatible with 12 volts. It is specifically designed for use in 2010-2013 Blue Bird, Freightliner, Gillig, and Sterling models.*...29-080600001- SKU:
- 29-080600001
- Truck Class:
- Heavy Duty
- Make:
- Sterling
- Product Type:
- Exhaust
$621.99Qty in Cart: 0Price:$621.99Subtotal: -
On SaleLimited Quantity Available
Inlet Nox Nitrogen Oxide Sensor Connector Replaces 2872948, 2872948NX, 326873RX, 5295473RX For Cummins ISB 6.7L
DAYTON / DORMAN
Now: $117.90Was: $654.99Nitrogen Oxide Sensor Inlet Of DPF ConnectorThe NOx sensor for Cummins features an 890mm lead and 12-volt compatibility. It is designed for use in 2013-2020 Blue Bird, Freightliner, Gillig, and International trucks.* High Quality Nitrogen Oxide Sensor*...29-080600000- SKU:
- 29-080600000
- Truck Class:
- Heavy Duty
- Make:
- Freightliner
- Product Type:
- Exhaust
Now: $117.90Was: $654.99Qty in Cart: 0Price:Now: $117.90Was: $654.99Subtotal: -
Exhaust Bellows Kit Replaces M66-7064-0330, 3.5 X 13.25 Inch For Peterbilt & Kenworth
DAYTON / DORMAN
$598.99Exhaust Bellows Kit* High Quality Exhaust Bellows Kit* Metal Material* 3.5 Inch Inside Diameter* 13.25 Inch Length* Includes - 1 Exhaust Bellow - 2 Clamps - 2 Gaskets* Sold As Kit* Warranty On Exhaust Bellows Kit Against Defects In...29-080420- SKU:
- 29-080420
- Truck Class:
- Heavy Duty
- Material Options:
- Steel
- Make:
- Peterbilt
- Make:
- Kenworth
- Finish Options:
- Chrome-Plated
- Length Options:
- 13 1/4 Inch
- Diameter Options:
- 3 1/2 Inch
- Product Type:
- Exhaust
$598.99Qty in Cart: 0Price:$598.99Subtotal: -
Exhaust Flex Bellows Kit Replaces M66-3541, M66-4111 For Peterbilt & Kenworth
DAYTON / DORMAN
$570.99Exhaust Pipe Bellow KitThe Exhaust Flex Bellows Kit is an ideal replacement for outdated or damaged exhaust components, replacing OEM numbers M66-3541 and M66-4111. This kit, featuring a metal bellow with a 3.5-inch inside diameter and a 12.5-inch...29-080419- SKU:
- 29-080419
- Truck Class:
- Heavy Duty
- Material Options:
- Steel
- Make:
- Kenworth
- Make:
- Peterbilt
- Finish Options:
- Chrome-Plated
- Length Options:
- 12 1/2 Inch
- Diameter Options:
- 3 1/2 Inch
- Product Type:
- Exhaust
$570.99Qty in Cart: 0Price:$570.99Subtotal: -
On SaleLimited Quantity Available
BESTfit 2.5 X 14.75 Inch Flex Connector W/ Flange Replaces M666559 For Kenworth, Peterbilt
BESTFIT TRUCK PARTS
Now: $103.59Was: $147.99SS 12 3/4 Inch DPF Flex ConnectorIntroducing the BESTfit 2.5 X 14.75 Inch Flex Connector with Flange, a replacement for OE number M66-6559. This premium connector, made in the USA, features a 2.5-inch flange and a compressed length of 12.750 inches,...29-080407- SKU:
- 29-080407
- Truck Class:
- Heavy Duty
- Location:
- Made In USA
- Material Options:
- Steel
- Make:
- Peterbilt
- Make:
- Kenworth
- Finish Options:
- Chrome-Plated
- Length Options:
- 12 3/4 Inch
- Diameter Options:
- 2 1/2 Inch
- Product Type:
- Exhaust
Now: $103.59Was: $147.99Qty in Cart: 0Price:Now: $103.59Was: $147.99Subtotal: -
BESTfit 5 X 14.5 Inch Bead Flex Connector W/ Flange Replaces M6665420335 For Kenworth, Peterbilt
BESTFIT TRUCK PARTS
$272.99BESTfit Stainless Steel 14.5 Inch Long DPF Flex Connector PipeRevitalize your truck's exhaust system with the BESTfit 5 Inch X 14.5 Inch Bead Flex Connector, specifically designed to replace OE numbers M66-6542-0335 and M66-6132-0320. This...29-080406- SKU:
- 29-080406
- Truck Class:
- Heavy Duty
- Location:
- Made In USA
- Material Options:
- Stainless Steel
- Make:
- Kenworth
- Make:
- Peterbilt
- Length Options:
- 14 1/2 Inch
- Diameter Options:
- 5 Inch
- Product Type:
- Exhaust
$272.99Qty in Cart: 0Price:$272.99Subtotal: -
BESTfit 5 X 11.375 Inch Bead Flex Connector W/ Flange Replaces M6665420320 For Kenworth, Peterbilt
BESTFIT TRUCK PARTS
$215.99SS DPF Bead Flex Connector Pipe* High Quality Flex Connector* 5 Inch Flange x 5 Inch Flange x 11.375 Inch Compressed* Sold Individually* Made In USA* Warranty On Flex Connector Against Defects In Workmanship & Material From Date Of Purchase***High...29-080405- SKU:
- 29-080405
- Truck Class:
- Heavy Duty
- Location:
- Made In USA
- Material Options:
- Stainless Steel
- Make:
- Peterbilt
- Make:
- Kenworth
- Diameter Options:
- 5 Inch
- Product Type:
- Exhaust
$215.99Qty in Cart: 0Price:$215.99Subtotal: -
On SaleLimited Quantity Available
BESTfit 4 X 14.25 Inch Flex Connector Replaces M66-65410-405, M66-7091-0405 For Kenworth, Peterbilt
BESTFIT TRUCK PARTS
Now: $136.50Was: $272.99BESTfit Stainless Steel 14.25 Inch Long DPF Flex Connector W/ 4 Inch Flange* High Quality Exhaust Connector* 4 Inch Flange x 4 Inch Flange x 14.250 Inch Compressed* Sold Individually* Made In USA* Warranty On Exhaust Connectors Against Defects In...29-080404- SKU:
- 29-080404
- Truck Class:
- Heavy Duty
- Diameter Options:
- 4 Inch
- Location:
- Made In USA
- Length Options:
- 14 1/2 Inch
- Material Options:
- Steel
- Make:
- Kenworth
- Make:
- Peterbilt
- Finish Options:
- Chrome-Plated
- Product Type:
- Exhaust
Now: $136.50Was: $272.99Qty in Cart: 0Price:Now: $136.50Was: $272.99Subtotal: -
BESTfit 4 X 12.25 Inch Flex Connector W/ Flange Replaces M6665410335, M6670910335 For Kenworth, Peterbilt
BESTFIT TRUCK PARTS
$256.99BESTfit Stainless Steel 12.25 Inch Long DPF Flex Connector W/ 4 Inch Flange* High Quality Flex Connector* Made Of Stainless Steel* 4 Inch Flange x 4 Inch Flange x 12.250 Inch Compressed* Sold Individually* Made In USA* Warranty On Flex Connectors Against...29-080403- SKU:
- 29-080403
- Truck Class:
- Heavy Duty
- Diameter Options:
- 4 Inch
- Length Options:
- 12 1/4 Inch
- Location:
- Made In USA
- Material Options:
- Steel
- Make:
- Peterbilt
- Make:
- Kenworth
- Finish Options:
- Chrome-Plated
- Product Type:
- Exhaust
$256.99Qty in Cart: 0Price:$256.99Subtotal: -
BESTfit 4 X 11.375 Inch Flex Connector Replaces M66-6541-0320 For Kenworth & Peterbilt
BESTFIT TRUCK PARTS
$199.99BESTfit DPF Exhaust Flex Connector PipeBESTfit's 4 X 11.375 Inch Flex Connector is the top choice for replacing OE numbers M66-6541-0320 and M66-7091-0320, fitting a wide range of Kenworth and Peterbilt trucks. This 4-inch flange flex connector is...29-080402- SKU:
- 29-080402
- Diameter Options:
- 4 Inch
- Truck Class:
- Heavy Duty
- Location:
- Made In USA
- Material Options:
- Steel
- Make:
- Kenworth
- Make:
- Peterbilt
- Product Type:
- Exhaust
$199.99Qty in Cart: 0Price:$199.99Subtotal: -
Peterbilt, Kenworth Exhaust Bellows Kit Replaces 67PAC65420320. KW-6542-0320. KW65420320. M6665420320. M66-6542-0320
AUTOMANN USA
$405.99Exhaust Bellows Kit W/ Clamp & GasketUpgrade your truck with the Exhaust Bellows Kit, designed for a wide range of Peterbilt and Kenworth models. This comprehensive kit includes two high-grade V-Band Clamps and two Gaskets, tailored for Cummins engines,...29-08040005- SKU:
- 29-08040005
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Make:
- Kenworth
- Style Options:
- Cummins
- Material Options:
- Steel
- Product Type:
- Exhaust
$405.99Qty in Cart: 0Price:$405.99Subtotal: -
Exhaust Bellows Kit W/ 561.29475 V-Band Clamps, 562.U856636 Gaskets For Peterbilt, Kenworth
AUTOMANN USA
$465.99Exhaust Bellows Kit W/ Clamp & GasketThis Exhaust Bellows Kit comes complete with two precision-engineered V-Band clamps and two DPF Gasket Cummins, offering an optimal fit for a wide range of Peterbilt and Kenworth trucks. Ideal for a broad spectrum of...29-08040004- SKU:
- 29-08040004
- Truck Class:
- Heavy Duty
- Make:
- Kenworth
- Make:
- Peterbilt
- Style Options:
- Cummins
- Material Options:
- Steel
- Product Type:
- Exhaust
$465.99Qty in Cart: 0Price:$465.99Subtotal: -
Exhaust Bellows Kit W/ 561.29318 V-Band Clamps & 562.U46245 Gaskets For Peterbilt, Kenworth
AUTOMANN USA
$293.99Exhaust Bellows Kit W/ Clamp & Gasket* High Quality Exhaust Bellows* Includes - (2) V-Band Clamp - 561.29318 - (2) Exhaust Gasket - 562.U46245* Sold Individually* Warranty On Exhaust Bellows Against Defects In Workmanship & Material From...29-08040003- SKU:
- 29-08040003
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Make:
- Kenworth
- Material Options:
- Steel
- Product Type:
- Exhaust
$293.99Qty in Cart: 0Price:$293.99Subtotal: -
Exhaust Bellows Kit W/ Gaskets & Hardware For 16-17 W/ MX13, Peterbilt, Kenworth
AUTOMANN USA
$505.99Premium Exhaust BellowsTargeted for a range of Peterbilt and Kenworth models, the Exhaust Bellows Kit is the ultimate solution for drivers looking to enhance their exhaust's reliability. This comprehensive kit includes high-quality exhaust bellows,...29-08040002- SKU:
- 29-08040002
- Truck Class:
- Heavy Duty
- Make:
- Kenworth
- Make:
- Peterbilt
- Material Options:
- Steel
- Style Options:
- Cummins
- Product Type:
- Exhaust
$505.99Qty in Cart: 0Price:$505.99Subtotal: -
Exhaust Bellows Kit W/ Gaskets & Hardware For Peterbilt, Kenworth
AUTOMANN USA
$391.99Exhaust Bellows KitDesigned for Peterbilt and Kenworth trucks, the Exhaust Bellows Kit is the ultimate solution for improving exhaust integrity and performance. This kit includes everything you need for a comprehensive installation: two V-Band clamps and...29-08040001- SKU:
- 29-08040001
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Make:
- Kenworth
- Material Options:
- Steel
- Style Options:
- Cummins
- Product Type:
- Exhaust
$391.99Qty in Cart: 0Price:$391.99Subtotal: -
EGR Inlet Tube Bellows Kit IHC W/ Gaskets & Hardware For 16-17 W/ MX13
AUTOMANN USA
$436.99Premium Exhaust Bellows* High Quality Exhaust Bellows* Includes - (2) V- Band Clamp - (2) Gasket Cummins* Sold Individually* Warranty On Exhaust Bellows Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...29-08040000- SKU:
- 29-08040000
- Truck Class:
- Heavy Duty
- Make:
- Kenworth
- Make:
- Peterbilt
- Material Options:
- Steel
- Style Options:
- Cummins
- Product Type:
- Exhaust
$436.99Qty in Cart: 0Price:$436.99Subtotal: -
BESTfit 10 Inch Diameter Exhaust Muffler OE Style 5 ID / ID X 44.5 Inch OAL
BESTFIT TRUCK PARTS
$148.99BESTfitHeavy Gauge Steel W/ Aluminized Plating OE Style Exhaust MufflerThe BESTfit 5 X 51 Inch Aluminized Steel Exhaust Muffler offers an OE-style upgrade for your truck's exhaust system. This high-quality muffler is made of heavy gauge steel with...29-08020000- SKU:
- 29-08020000
- Diameter Options:
- 5 Inch
- Truck Class:
- Heavy Duty
- Length Options:
- 51 Inch
- Material Options:
- Aluminized Steel
- Make:
- Kenworth
- Make:
- Peterbilt
- Product Type:
- Exhaust
$148.99Qty in Cart: 0Price:$148.99Subtotal: -
BESTfit 4.25 Inch Turbo Flare Lip 7.3 Ford Powerstroke Exhaust
BESTFIT TRUCK PARTS
$21.51BESTfit 3.5 X 4 Inch Type A Turbo Manifold Outlet With 4.25 Inch Flange Fits 7.3L Powerstroke EnginesImprove the turbo efficiency of your 7.3L Powerstroke with the BESTfit 3.5 X 4 Inch Type A Turbo Manifold Outlet from 4 State Trucks. This turbo outlet,...29-080100002- SKU:
- 29-080100002
- Diameter Options:
- 3 Inch
- Truck Class:
- Heavy Duty
- Length Options:
- 4 Inch
- Location:
- Made In USA
- Material Options:
- Aluminized Steel
- Product Type:
- Exhaust
$21.51Qty in Cart: 0Price:$21.51Subtotal:
