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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Heavy Duty Diesel Oxidation Catalyst, Replaces 2888262NX For Cummins ISX 15.0L
DAYTON / DORMAN
$3,414.99Heavy Duty Diesel Oxidation Catalyst * High Quality Diesel Oxidation Catalyst* Includes:- 1 Diesel Oxidation Filter- 2 Gaskets* Natural Color* Regular Grade * Standard Replacement* Not For Sale In California* Sold Individually* Warranty On Diesel...$3,414.99 -
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 Workmanship & Material...$598.99 -
Exhaust Flex Bellows Kit Replaces M66-3541, M66-4111 For Peterbilt & Kenworth
DAYTON / DORMAN
$570.99Exhaust Pipe Bellow Kit * High Quality Exhaust Bellows Kit* Metal Material* 3.5 Inch Inside Diameter* 12.5 Inch Length- 1 Exhaust Bellow- 2 Clamps- 2 Gaskets* Sold As Kit* Warranty On Exhaust Bellows Kit Against Defects In Workmanship & Material From...$570.99 -
Chrome 90 Degree Exhaust Elbow, 7 Inch OD To 5 Inch ID
BESTFIT TRUCK PARTS
$632.9916 Inch End To End 90 Degree Chrome Elbow * High Quality Elbow* Chrome-Plated * 7 Inch OD * 5 Inch ID* 90 Degree* With 16 Inch End To End Measurement Both Horizontally And Vertically* 16 Gauge* Sold Individually* Warranty On Elbows Against Defects In...$632.99 -
Galvanized Type 1 Resonator Muffler W/ 4 Inch ID Inlet & Outlet
BESTFIT TRUCK PARTS
$102.9916.5 Inch Galvanized Resonator Muffler, 9 Inch Body Diameter * High Quality Resonator Muffler * Galvanized* 10 Inch Body Length * 16.5 Inch Overall Length * 9 Inch Body Diameter * 4 Inch ID Inlet * 4 Inch ID Outlet* Sold Individually* Warranty On...$102.99 -
BESTfit Aluminized 5 ID X 51 In. Straight Muffler Eliminator Pipe
BESTFIT TRUCK PARTS
$142.995 ID x 51 Inch Muffler EliminatorCheck out this BESTfit muffler eliminator pipe from 4 State Trucks! Made of durable aluminized steel, this pipe fits in place of a standard muffler. It has a 5 inch inside diameter and is 51 inches long. Upgrade today for...$142.99 -
Exhaust Clamp Replacement Bolt Kit 18-8 Stainless Steel
AFTERMARKET
$8.66Replacement Cinch Bolt * Made Of High Quality Stainless Steel* Sold As Kit* Kit Includes One Of Each- 3/8-16 X 3 Carriage Bolt- 3/8 Flat Washer- 3/8 Lock Washer- 3/8-16 Nut*** High Quality Aftermarket Replacement Part (Not OEM)***$8.66 -
Chrome Turn Out Top Stack, 4 Inch ID
BESTFIT TRUCK PARTS
$175.994 Inch ID Turn Out Top Stack * High Quality Top Stack* Chrome-Plated * 4 Inch ID* 48 Inch Length* Turn Out* Sold Individually* Warranty On Top Stacks Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement...$175.99 -
5 Inch Lincoln Chrome Plated Stainless Steel Wide Exhaust Clamp With Universal Bracket
LINCOLN CHROME
$151.995 Inch Lincoln Chrome Plated Stainless Steel Wide Exhaust Clamp With Universal Bracket * High Quality Clamp* Made Of Chrome-Plated Stainless Steel* 5 Inch Wide Style * Universal 2 Bolt Mount* Sold Individually* Made In USA* Warranty On Clamps Against...$151.99 -
On Sale
8 Inch Lincoln Chrome Plated Stainless Steel Narrow Exhaust Clamp With No Bracket
LINCOLN CHROME
Now: $38.30Was: $77.79Lincoln Chrome Narrow Exhaust Clamp With No Bracket * High Quality Clamp* Made Of Chrome-Plated Stainless Steel* 8 Inch Narrow Style * No Bracket Clamp* Sold Individually* Made In USA* Warranty On Clamps Against Defects In Workmanship & Material From...Now: $38.30Was: $77.79 -
6 To 5 Inch 90 Degree 23 X 23 Inch Chrome Exhaust Elbow With Tapered Top
LINCOLN CHROME
$469.99Lincoln Chrome Elbow 90 Degree With Tapered Top Chrome Plated Steel * High Quality Elbow* Made Of Chrome-Plated Steel* 6 Inch OD * 90 Degree Universal Elbow* With Tapered Top For OD Stacks* Leg Length- 23 Inch Upper- 23 Inch Lower* Bottom Reduces to 5...$469.99 -
6 To 5 Inch 90 Degree 15 X 15 Inch Chrome Exhaust Elbow With Tapered Top
LINCOLN CHROME
$469.99Lincoln Chrome Elbow 90 Degree With Tapered Top Chrome Plated Steel * High Quality Elbow* Made Of Chrome-Plated Steel* 6 Inch OD * 90 Degree Universal Elbow* With Tapered Top For OD Stacks* Leg Length- 15 Inch Upper- 15 Inch Lower* Bottom Reduces To 5...$469.99