Peterbilt Exhaust
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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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$570.99Exhaust Pipe Bellow KitThe Exhaust Flex Bellows Kit is an ideal replacement for outdated or damaged exhaust components, replacing OEM numbers M66-3541 and M66-4111.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: -
5.88 Inch V Band Clamp By TPHD Replaces VQ10588A01 For Flanged Pipes To DPF
TPHD
$19.99V-Band Clamp 5 InchKeep your heavy-duty truck running smoothly with the TPHD V Band Clamp, specifically designed for 5.88-inch flanged pipes to DPF connections. Made of polished stainless steel, this clamp not only offers superior durability but also...29-080003- SKU:
- 29-080003
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Make:
- Kenworth
- Diameter Options:
- 6 Inch
- Material Options:
- Stainless Steel
- Product Type:
- Exhaust
$19.99Qty in Cart: 0Price:$19.99Subtotal: -
247MM-257MM Stainless Steel DPF Exhaust Clamp - Replaces A6809950202
DAYTON / DORMAN
$53.85247MM-257MM Stainless Steel DPF Exhaust Clamp* High Quality DPF Exhaust Clamp* Adjustment Type: Manual* Band Material Thickness: 1.6 Mm* Band Width: 25.3 Mm* Clamping Type: Bolt* Color: Natural* Material: Stainless Steel* Maximum Diameter: 257 Mm*...29-080000000- SKU:
- 29-080000000
- Truck Class:
- Heavy Duty
- Material Options:
- Steel
- Make:
- Freightliner
- Finish Options:
- Chrome-Plated
- Product Type:
- Exhaust
$53.85Qty in Cart: 0Price:$53.85Subtotal: -
Exhaust Manifold Kit For Caterpillar C7 2004 To 2007
AUTOMANN USA
$519.99Caterpillar Exhaust Manifold Kit* High Quality Exhaust Manifold Kit* Sold Individually* Warranty On Exhaust Manifold Kits Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not OEM)**** This Item...29-072123664- SKU:
- 29-072123664
- Truck Class:
- Heavy Duty
- Make:
- Peterbilt
- Make:
- Kenworth
- Product Type:
- Engine Parts
$519.99Qty in Cart: 0Price:$519.99Subtotal: -
5 Inch Aluminized Steel Double Bend Pipe W/ 5 Inch Inlet For 5, 6, 7 Inch Stack Kits by BESTfit
BESTFIT TRUCK PARTS
$353.99BESTfit 5 Inch 16G Aluminized Steel Double Bend Pipe For 5, 6, 7 Inch Stack Kits W/ 5 Inch Inlet* High Quality Stack* 16 Gauge Aluminized Steel* Dimensions - 5 Inch Diameter - 5 Inch Inlet Diameter* Used In 5, 6 And 7 Inch Stack Kits* Made in...09-08G500008- SKU:
- 09-08G500008
- Diameter Options:
- 5 Inch
- Location:
- Made In USA
- Material Options:
- Aluminized Steel
- Make:
- Universal Items
- Truck Class:
- Heavy Duty
- Product Type:
- Exhaust
$353.99Qty in Cart: 0Price:$353.99Subtotal:
