Peterbilt 389 Exhaust Parts
Find top-notch Peterbilt 389 exhaust components to elevate your rig's performance. We offer reliable chrome stacks, elbows, clamps, brackets, DPFs, and mufflers for a flawless fit. Shop our extensive inventory at 4 State Trucks for quality parts that deliver durability and style.
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Chrome Reducer, 6 To 5 Inch ID
UNITED PACIFIC
$42.99Chrome Plated 6 To 5 Inch ID ReducerConnect 6 inch inside diameter exhaust pipe to 5 inch inside diameter exhaust pipe with this reducer. It is chrome plated and is sold individually. * High Quality Reducer* Chrome-Plated* 6 Inch I.D. To 5 Inch I.D.*...$42.99 -
BESTfit Chrome 5 Inch Curve Turn Out Exhaust Stack - 108 Inch Length With Outside Diameter Inlet-Plain
BESTFIT TRUCK PARTS
$676.99BESTfit 5 Inch Chrome 108 Inch Miter Cut Exhaust Stack With Plain Inlet - O.D. * High Quality 5 Inch Exhaust Stack* Miter Style Top - Angle Cut* Made Of Chrome-Plated Steel* 5 Inch O.D. Inlet - Plain Inlet To Fit Inside 5 Inch Expanded Mufflers, Elbows...$676.99 -
On Sale
BESTfit Y-Pipe Hanger Stainless Steel 8 Inch Kit For Long Drop Elbow Peterbilt 378, 379, 389 Glider
BESTFIT TRUCK PARTS
Now: $441.89Was: $490.998 Inch Stainless Steel Y-Pipe Hanger KitIntroducing our Y-Pipe Hanger Bracket Kit, designed for Peterbilt trucks with an 8-inch long drop 90-degree elbow and full-size exhaust tee. This kit features premium stainless steel exhaust tee pipe hangers,...Now: $441.89Was: $490.99 -
BESTfit 6 Inch Chrome-Plated SS Wide Straight Clamp Replaces 50BJ-PB600SCP For Peterbilt 377, 378, 379, 386, 388 & 389
BESTFIT TRUCK PARTS
$108.99BESTfit Chrome Stainless Steel Wide Straight ClampEnhance your exhaust system with our top-of-the-line chrome-plated stainless steel exhaust clamp. Measuring 6 inches in diameter, this versatile clamp can be used on either the driver or passenger side of...$108.99 -
Peterbilt 378, 379, 389, 389 Glider Chrome 5 Inch Tapered Y-Pipe
BESTFIT TRUCK PARTS
$441.99BESTfit 5 Inch Taper Lock Y Exhaust PipeEnhance your truck's exhaust system with this aftermarket replacement Y-pipe, designed for optimal performance and durability. Crafted from chrome-plated steel, this Y-pipe offers excellent corrosion resistance and...$441.99 -
Aluminized Steel Flared Exhaust Adapter 5.72 OD X 6.25 Inch - 41689 For Cummins 855CI W/T50 Turbo
AUTOMANN USA
$24.62Flared Exhaust Adapter Replaces 41689 * High Quality Exhaust Adapter* Aluminized Steel* Dimensions:- 5.00 Inch OD- 5.72 Inch Flange OD- 6.25 Inch Length* Sold Individually* Warranty On Exhaust Adapters Against Defects In Workmanship & Material From Date...$24.62 -
Upper Exhaust Slider Clamp Assembly With Bushings & Slide Pin For Peterbilt 388, 389 Driver Side
BESTFIT TRUCK PARTS
$211.99Driver Side Upper Exhaust Slider Clamp Replaces OE M16-6048 & M166048 * High Quality Upper Exhaust Slider Clamp Assembly* Driver Side * Includes Bushings And Slide Pin* Sold Individually* Warranty On Upper Exhaust Slider Clamp Assembly Against Defects In...$211.99 -
Aluminized Turbo Down Pipe, 4 Inch OD, For Peterbilt 386
BESTFIT TRUCK PARTS
$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...$173.99 -
Galvanized Steel Exhaust Resonator 5 Inch Inlet With 9 Inch Body
AUTOMANN USA
$131.999 Inch Diameter Exhaust Resonator With 5 Inch ID Inlet and OutletInstall the resonator to the exhaust system of your truck before the muffler to help reduce the noise of the engine. * High Quality Exhaust Resonator* Made Of Galvanized Steel* 5 Inch ID...$131.99 -
Stainless Steel Bolt Kit For Exhaust Mount Grommets For Peterbilt
AFTERMARKET
$38.49Stainless Steel Bolt Kit With Hex Head Bolts, Hex Nuts, Grommets, Flat And Lock WashersGetting ready to secure your exhaust stack clamps to the cab brackets on your Peterbilt truck? Elite Truck Accessoriesoffers this high-quality fasteners kit to mount...$38.49 -
Stainless Steel Bolt Kit For Exhaust Cab Brackets For Peterbilts
AFTERMARKET
$19.99Stainless Steel Bolt Kit With Hex Head Bolts, Flat And Lock WashersGetting ready to bolt your exhaust down to the cab of your Peterbilt truck? Elite Truck Accessoriesoffers this high-quality fasteners kit that contains parts to mount 2 exhaust cab...$19.99 -
Performance Muffler, 10 X 51.5 Inch With 6 Inch In/Out
PITTSBURGH POWER
$299.99High Performance Muffler Increases Horsepower, Mileage & Reduces Back Pressure * High Quality Performance Muffler * 6 Inch In * 6 Inch Out* Dimension:10 Inch X 51.5 Inch * Reduces Exhaust Back Pressure* 50 HP Increase * 1/4 Mile Per Gallon Improvement *...$299.99