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Peterbilt 389 Exhaust Parts

Find top-notch Peterbilt 389 exhaust components to elevate your rig's performance. We offer reliable Peterbilt mufflers, chrome stacks, elbows, clamps, brackets, and DPFs for a flawless fit. Shop our extensive inventory at 4 State Trucks for quality parts that deliver durability and style.
  • Product
  • Qty in Cart
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  • Price
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  • 7 Inch Chrome Narrow Style Cab Exhaust Clamp For Peterbilt

    7 Inch Chrome Narrow Style Cab Exhaust Clamp For Peterbilt

    UNITED PACIFIC

    $24.55
    Peterbilt Cab Mounting BracketUpgrade your Peterbilt cab exhaust system with this 7 Inch Chrome Narrow Style Cab Exhaust Clamp, engineered for durability and a precise fit. The chrome-plated surface...
    01-080015
    SKU:
    01-080015
    Material Options:
    Steel
    Product Type:
    Exhaust
    Length Options:
    7 Inch
    Finish Options:
    Chrome-Plated
    Make:
    Peterbilt
    $24.55
    Qty in Cart: 0
    Price:
    $24.55
    Subtotal:
  • BESTfit Upper Mount Exhaust Bushing Kit 11811, GAFF11811 For Peterbilt

    BESTfit Upper Mount Exhaust Bushing Kit 11811, GAFF11811 For Peterbilt

    BESTFIT TRUCK PARTS

    $45.69
    Upper Mount Exhaust Bushing Kit With Pivot BushingThe BESTfit Upper Mount Exhaust Bushing Kit is a high-quality replacement kit designed to secure and stabilize your Peterbilt exhaust system. This...
    01-080700013
    SKU:
    01-080700013
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    Position:
    Kit Full
    Make:
    Peterbilt
    $45.69
    Qty in Cart: 0
    Price:
    $45.69
    Subtotal:
  • BESTfit 5 Inch Stainless Steel Angled Exhaust Clamp For Peterbilt

    BESTfit 5 Inch Stainless Steel Angled Exhaust Clamp For Peterbilt

    BESTFIT TRUCK PARTS

    $136.99
    5 Inch Stainless Peterbilt Exhaust Clamp - Angled DesignNeed a strong exhaust clamp for your Pete? This 5-inch stainless clamp is built tough for Peterbilt stacks. The angled design matches your...
    01-08000020
    SKU:
    01-08000020
    Product Type:
    Exhaust
    Style Options:
    Angled
    Finish Options:
    Polished
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Diameter Options:
    5 Inch
    $136.99
    Qty in Cart: 0
    Price:
    $136.99
    Subtotal:
  • 2.25 Inch Exhaust Clamp With Hanger

    2.25 Inch Exhaust Clamp With Hanger

    AUTOMANN USA

    $20.35
    Exhaust System Hanger fits 2.25 Inch PipeKeep your exhaust system secure and quiet with our heavy-duty 4-inch mounting bracket. Built tough to reduce vibration and provide rock-solid support for your...
    09-08000009
    SKU:
    09-08000009
    Product Type:
    Exhaust
    Diameter Options:
    4 Inch
    Make:
    Universal Items
    $20.35
    Qty in Cart: 0
    Price:
    $20.35
    Subtotal:
  • 5 Inch SS Guillotine Type Exhaust Clamp

    5 Inch SS Guillotine Type Exhaust Clamp

    AUTOMANN USA

    $26.56
    Exhaust Clamp For Pipe Size 5 Inch* High Quality Exhaust Clamp* Stainless Steel* 5 Inch Diameter* 3/8 Inch- 16 Threads* Sold Individually* Warranty On Exhaust Clamps Against Defects In Workmanship &...
    09-08000005
    SKU:
    09-08000005
    Product Type:
    Exhaust
    Material Options:
    Stainless Steel
    Diameter Options:
    5 Inch
    Make:
    Universal Items
    $26.56
    Qty in Cart: 0
    Price:
    $26.56
    Subtotal:
  • BESTfit Exhaust Mount Bushing Kit Replaces 11811, GAFF11811 For Peterbilt

    BESTfit Exhaust Mount Bushing Kit Replaces 11811, GAFF11811 For Peterbilt

    BESTFIT TRUCK PARTS

    $52.99
    Replacement Peterbilt Exhaust Mount Bushing Kit By BESTfitSay goodbye to rattles and vibrations with the BESTfit Exhaust Mount Bushing Kit for Peterbilt. Replacing 11811 and GAFF11811, this kit...
    01-080700014
    SKU:
    01-080700014
    Product Type:
    Exhaust
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    $52.99
    Qty in Cart: 0
    Price:
    $52.99
    Subtotal:
  • FREE SHIPPING
    BESTfit Aluminum Upper Fuel Tank Mounting Bracket Replaces 11-04855M000, 1104855M000 For Peterbilt W/ 26 Inch Diameter Tanks

    BESTfit Aluminum Upper Fuel Tank Mounting Bracket Replaces 11-04855M000, 1104855M000 For Peterbilt W/ 26 Inch Diameter Tanks

    BESTFIT TRUCK PARTS

    $335.99
    Aluminum Upper Fuel Tank Mounting Bracket For 26 Inch Diameter Fuel Tanks By BESTfitUpgrade your Peterbilt with this aluminum upper fuel tank mounting bracket, designed for 26-inch diameter fuel...
    01-0601011
    SKU:
    01-0601011
    Truck Class:
    Heavy Duty
    Product Type:
    Fuel Tanks
    Material Options:
    Aluminum
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    Position:
    Upper
    Diameter Options:
    26 Inch
    $335.99
    Qty in Cart: 0
    Price:
    $335.99
    Subtotal:
  • DPF V-Band Clamp Kit DDEA4709950002, A4709970045 For Mercedes / Detroit Diesel DD13 / DD15

    DPF V-Band Clamp Kit DDEA4709950002, A4709970045 For Mercedes / Detroit Diesel DD13 / DD15

    AFTERMARKET

    $186.99
    DPF V-Band Clamp And 2 GasketsThe V-Band Clamp Kit is a direct replacement for DPF system flange connections, designed for quick and hassle-free assembly and disassembly thanks to its convenient...
    29-08060016
    SKU:
    29-08060016
    Material Options:
    Stainless Steel
    Product Type:
    Exhaust
    Make:
    Universal Items
    Style Options:
    Detroit
    $186.99
    Qty in Cart: 0
    Price:
    $186.99
    Subtotal:
  • 4.69 Inch V-Band Clamp Replaces 1W2431

    4.69 Inch V-Band Clamp Replaces 1W2431

    AUTOMANN USA

    $25.44
    V-Band Clamp Diameter 4.69 Inch* High Quality V-Band Clamp* Stainless Steel* 4.69 Inch Nominal Diameter* Uses 1/4 Inch Bolt* With Torque Range Of 50-70 in-lbs * Sold Individually* Warranty On V-Band...
    29-08060009
    SKU:
    29-08060009
    Material Options:
    Stainless Steel
    Product Type:
    Exhaust
    Diameter Options:
    4 1/2 Inch
    Make:
    Universal Items
    $25.44
    Qty in Cart: 0
    Price:
    $25.44
    Subtotal:
  • 5.25 Inch V-Band Clamp For Detroit Diesel

    5.25 Inch V-Band Clamp For Detroit Diesel

    AUTOMANN USA

    $26.71
    V-Band Coupling Clamp 5.25 Inch Nominal Clamp DiameterThe V Band clamp is a cost-effective solution for refurbishing worn flange connections in your exhaust system. Its V-shaped design ensures even...
    29-08060015
    SKU:
    29-08060015
    Product Type:
    Exhaust
    Material Options:
    Stainless Steel
    Diameter Options:
    5 1/4 Inch
    Make:
    Universal Items
    $26.71
    Qty in Cart: 0
    Price:
    $26.71
    Subtotal:
  • 4.33 Inch V-Band Clamp Replaces J009613, VB-350I, 338614C1, 89512K, 35494

    4.33 Inch V-Band Clamp Replaces J009613, VB-350I, 338614C1, 89512K, 35494

    AUTOMANN USA

    $24.16
    4.33 Inch Stainless Steel V-Band ClampAchieve a tight, dependable seal with this 4.33 Inch V-Band Clamp, engineered to replace J009613, VB-350I, 338614C1, 89512K, and 35494. Stainless steel...
    29-08060008
    SKU:
    29-08060008
    Product Type:
    Exhaust
    Material Options:
    Stainless Steel
    Diameter Options:
    4 1/4 Inch
    Make:
    Universal Items
    $24.16
    Qty in Cart: 0
    Price:
    $24.16
    Subtotal:
  • BESTfit 5 Inch V-Band Clamp Replaces 2880213, CUM2880213, CUMA029E742, 2511519C1 For Kenworth & Peterbilt

    BESTfit 5 Inch V-Band Clamp Replaces 2880213, CUM2880213, CUMA029E742, 2511519C1 For Kenworth & Peterbilt

    BESTFIT TRUCK PARTS

    $26.60
    5 Inch Stainless Steel V-Brand Clamp By BESTfitEnsure heavy-duty reliability with the BESTfit 5 Inch V-Band Clamp, a premium stainless steel replacement for 2880213, CUM2880213, CUMA029E742, and...
    29-08060005
    SKU:
    29-08060005
    Material Options:
    Stainless Steel
    Product Type:
    Exhaust
    Make:
    Peterbilt
    Make:
    Kenworth
    $26.60
    Qty in Cart: 0
    Price:
    $26.60
    Subtotal:
  • 4.60 Inch V-Band Clamp Replaces A6209970590, A0419184000, DDEA6209970590, VB-460MB

    4.60 Inch V-Band Clamp Replaces A6209970590, A0419184000, DDEA6209970590, VB-460MB

    AUTOMANN USA

    $21.62
    V-Band Clamp Diameter 4.60 Inch* High Quality V-Band Clamp* Stainless Steel * 4.60 Inch Nominal Diameter* Bolt Not Included* Sold Individually* Warranty On V-Band Clamps Against Defects In...
    29-08060010
    SKU:
    29-08060010
    Product Type:
    Exhaust
    Material Options:
    Stainless Steel
    Diameter Options:
    4 1/2 Inch
    Make:
    Universal Items
    $21.62
    Qty in Cart: 0
    Price:
    $21.62
    Subtotal:
  • 5.9 Inch V-Band Clamp Replaces BC4Z-5A231-B, 3621545C1 For Cummins ISX15, X15

    5.9 Inch V-Band Clamp Replaces BC4Z-5A231-B, 3621545C1 For Cummins ISX15, X15

    AUTOMANN USA

    $21.62
    V-Band Clamp 5.9 Inch* High Quality V-Band Clamp* Stainless Steel* 5.90 Inch Nominal Diameter* Quick Release Latch* Uses 1/4 Inch Bolt* With Torque Range Of 50-70 in-lbs* Sold Individually* Warranty...
    29-08060004
    SKU:
    29-08060004
    Product Type:
    Exhaust
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Diameter Options:
    5 5/8 Inch
    Style Options:
    Cummins
    $21.62
    Qty in Cart: 0
    Price:
    $21.62
    Subtotal:
  • 4.19 Inch V-Band Clamp 3208T Cummins

    4.19 Inch V-Band Clamp 3208T Cummins

    AUTOMANN USA

    $24.16
    4.19 Inch V-Brand Clamp* High Quality V-Band Clamp* Stainless Steel* 4.19 Inch Nominal Diameter* Uses 1/4 Inch Bolt* With Torque Range Of 40-70 in-lbs* Sold Individually* Warranty On V-Band Clamps...
    29-08060006
    SKU:
    29-08060006
    Product Type:
    Exhaust
    Material Options:
    Stainless Steel
    Diameter Options:
    4 1/4 Inch
    Make:
    Universal Items
    $24.16
    Qty in Cart: 0
    Price:
    $24.16
    Subtotal:
  • 5.92 Inch V-Band Clamp Replaces VT10592 For Detroit Diesel 6V71/ 8V71/ 12V71

    5.92 Inch V-Band Clamp Replaces VT10592 For Detroit Diesel 6V71/ 8V71/ 12V71

    AUTOMANN USA

    $26.72
    Detroit Diesel 5.92 V-Band ClampThe V-Band Clamp is made of durable stainless steel with a nominal diameter of 5.92 inches. It uses a 1/4 inch bolt and offers a torque range of 50-70 inch pounds,...
    29-08000003
    SKU:
    29-08000003
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Diameter Options:
    6 Inch
    $26.72
    Qty in Cart: 0
    Price:
    $26.72
    Subtotal:
  • 5.88 Inch V-Band Clamp Replaces 11ME378M, 21021850

    5.88 Inch V-Band Clamp Replaces 11ME378M, 21021850

    AUTOMANN USA

    $25.43
    Turbo-V Flange Clamp* High Quality V-Band Clamp* Stainless Steel* 5.88 Inch Nominal Diameter* Uses 1/4 Inch Bolt* With Torque Range Of 50-70 in-lbs* Sold Individually* Warranty On V-Band Clamps...
    29-08060003
    SKU:
    29-08060003
    Material Options:
    Stainless Steel
    Product Type:
    Exhaust
    Diameter Options:
    5 3/4 Inch
    Make:
    Universal Items
    $25.43
    Qty in Cart: 0
    Price:
    $25.43
    Subtotal:
  • 9.5 Inch DPF V-Band Clamp 2871861, Q187680, P238307, AC300012 For Cummins ISB, ISB 6.7

    9.5 Inch DPF V-Band Clamp 2871861, Q187680, P238307, AC300012 For Cummins ISB, ISB 6.7

    AUTOMANN USA

    $37.10
    Cummins Paccar DPF V-Band ClampGet your heavy-duty aftermarket V-band clamp from 4 State Trucks today! These V-band clamps offer a cost-effective solution for renewing worn flange connections in your...
    29-08060001
    SKU:
    29-08060001
    Diameter Options:
    10 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Length Options:
    9.5
    Style Options:
    Cummins
    $37.10
    Qty in Cart: 0
    Price:
    $37.10
    Subtotal:
  • TPHD 4.69 Inch V-Band Exhaust Clamp Replaces 03730204119, 050372, 3896337

    TPHD 4.69 Inch V-Band Exhaust Clamp Replaces 03730204119, 050372, 3896337

    TURNPIKE TRUCK TRIM

    $22.26
    Replacement Clamp For EGR And Exhaust System Flange Connections* High Quality V-Band Clamp* Stainless Steel* 4.69 Inch Nominal Diameter* Designed To Be Direct Replacement For Erg And Exhaust System...
    29-08060029
    SKU:
    29-08060029
    Diameter Options:
    4 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Make:
    Universal Items
    Material Options:
    Stainless Steel
    $22.26
    Qty in Cart: 0
    Price:
    $22.26
    Subtotal:
  • TPHD 14.25 - 14.50 Inch V-Band Clamp Replaces A4709950002, P238773

    TPHD 14.25 - 14.50 Inch V-Band Clamp Replaces A4709950002, P238773

    AFTERMARKET

    $57.99
    Detroit Diesel 14.25 To 14.50 Inch V-Band Clamp* High Quality V-Band Clamp* Stainless Steel* 14.25 - 14.5 Inch Nominal Diameter* Uses 5/16 Inch Bolt * Made In USA* Sold Individually* Warranty On...
    29-08060021
    SKU:
    29-08060021
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Make:
    Universal Items
    Diameter Options:
    14 1/2 Inch
    Material Options:
    Stainless Steel
    $57.99
    Qty in Cart: 0
    Price:
    $57.99
    Subtotal:
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Peterbilt 389 Exhaust Systems & Chrome Stacks

Repair and restore the entire Peterbilt 389 exhaust system with a comprehensive selection of exhaust pipes, stacks, and hardware. Shop for premier aftermarket exhaust kits from brands like Lincoln Chrome, made to fit Peterbilt 389 model years (2011-2017 and 2018– 2023). Add clamps, Y-pipe hanger brackets, bushing kits, elbows, bellows kits, and more.

Aftermarket Peterbilt 389 Exhaust Upgrades

Find the hardware you need to keep your exhaust system sealed, stable, and functioning at a high level. Avoid costly exhaust installation mistakes by being prepared with the right hardware for a one-and-done DIY-exhaust installation. Metal Flex Pipe: stabilize the exhaust as it moves in tandem the Peterbilt 389 cab ride suspension. Pre-Formed Stainless Band Clamps: To create a leak-free seal without crushing the tubing. Polyurethane or Heavy-Duty Rubber Exhaust Bushings: To isolate engine vibration and prevent rattling. High-Temp Gaskets: Essential at every flange and manifold connection to stop minor exhaust leaks before they erode clamps or trigger backpressure sensors.

Replacement DPFs, Mufflers & Emissions Components

Reduce backpressure, promote stronger engine performance, and lower EGTs with our in-stock selection of high-flow semi truck mufflers, DPF/DOC 1-box assemblies, and other heavy-duty emissions system parts.

How to Choose the Right Exhaust Setup for Your 389

For newer 389 models, chrome stack kits require a DPF shift kit or specialized long-drop elbows to properly reroute exhaust from the factory-style under-step emissions canister. Verify if the Peterbilt 389 chrome exhaust kit is made for EPA10, GHG14, or newer emissions architecture. Choose a stack diameter and sound profile. The smaller exhaust diameter creates a lighter popping sound while the wider stacks have a deeper, rumbling tone.
  • 5-Inch Stacks (The Practical Standard): Provides a clean, factory-balanced look and modest exhaust flow improvement without overwhelming cab acoustics.
  • 6-Inch to 7-Inch Stacks (The Owner-Operator Sweet Spot): Delivers a deeper, more resonant tone and a bolder visual presence. This is the most popular range for custom highway trucks.
  • 8-Inch to 10-Inch Stacks (The Show Rig Tier): Massive and loud, these require heavy-duty bracket support and reinforced mounting plates to prevent vibration stress cracks on the body. They are ideal for extreme custom builds where aesthetics are paramount.
Choose the right chrome stack top style for your Peterbilt 389 theme:
  • Miter Cut: Angled, sharp, and traditional; the most popular choice for custom 389s.
  • Flat Top: A clean, classic straight-pipe look.
  • Turn-Out / Curved: Directs exhaust gases away from the trailer or sleeper, useful for specific vocational applications.
  • Bullhorn: Flared outward for a distinct, aggressive acoustic resonance.
Choose the right material: Aluminized Steel: The budget-friendly choice (lasting 3–5 years). Best for dry, southern climates or fleets prioritizing lower upfront costs, though prone to surface rust in northern winter salt. Triple Chrome-Plated Steel: The classic custom choice. Delivers a brilliant mirror finish for show trucks, but requires regular polishing and maintenance to prevent chrome pitting from intense heat cycles. 304 Stainless Steel: The longevity champion (7–10+ years). Ideal for long-hauls during winter weather due to its high corrosion resistance and less upkeep requirements.

Frequently Asked Questions About Peterbilt 389 Exhaust Parts

Will these exhaust parts fit my specific year Peterbilt 389, and are there differences between model years?

Most exhaust components are compatible with Peterbilt 389 models from 2008 to present, but there are important variations. Pre-2013 models typically use 5-inch diameter systems, while 2013 and newer models may have different mounting brackets and heat shield configurations. Always verify your truck's build date and check for any fleet-specific modifications. Key differences include the DEF system integration on 2011+ models and changes to the exhaust mounting brackets in 2016+ trucks.

What's the difference between aluminized and stainless steel exhaust components, and which should I choose?

Aluminized steel parts cost 30-40% less and work well for moderate use, lasting 3-5 years in normal conditions. However, they're prone to rust in salt-heavy regions or with frequent washing. 304 stainless steel components resist corrosion better and typically last 7-10 years, making them ideal for coastal areas or heavy-duty applications. 409 stainless offers a middle ground with good durability at a lower price than 304. Consider your operating environment and how long you plan to keep the truck when choosing.

Can I install these exhaust parts myself, and what tools or expertise do I need?

Basic exhaust stack and tip replacements can be DIY projects requiring standard hand tools, jack stands, and about 2-3 hours. However, full system replacements involving the turbo downpipe, flex pipes, or emissions components often require specialty tools like exhaust hangers, torque wrenches, and possibly welding equipment. Common challenges include seized bolts on older trucks, alignment issues with aftermarket parts, and ensuring proper clearances. Professional installation typically runs $200-400 for complex jobs.

What exhaust tip styles and finishes are available, and how do they affect performance?

Popular styles include straight cut, curve cut, turn-down, and miter cut tips, available in chrome, polished stainless, or powder-coated black finishes. While tip style has minimal impact on performance, the exhaust stack diameter and length do matter. 5-inch stacks are standard, with 6-inch options providing a deeper tone but potentially requiring bracket modifications. Chrome requires regular polishing to maintain appearance, while polished stainless needs less maintenance. Black powder-coated options hide soot better but may show wear faster in high-heat applications.

Why are my new exhaust parts not fitting properly, and how can I ensure compatibility?

Fitment issues commonly stem from aftermarket frame modifications, non-standard exhaust routing from previous repairs, or mixing OEM and aftermarket components. Measure your current system's diameter, bracket spacing, and overall length before ordering. Pay special attention to cab-to-sleeper gaps, as extended and custom sleepers may require different stack lengths. Some aftermarket parts may need minor adjustments like drilling new bracket holes or using adapter clamps. When in doubt, provide your OEM to ensure you receive the correct OEM-specification parts.


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