
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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BESTfit 4 To 3.5 Inch O.D.-O.D. X 8 Inch OAL Aluminized Steel Reducer Pipe
BESTFIT TRUCK PARTS
$23.65BESTfit 4 To 3.5 Inch O.D.-O.D. X 8 Inch OAL Aluminized Steel Reducer PipeIntroducing the Aluminized Exhaust Reducer, engineered from durable aluminized steel to ensure longevity. Featuring dimensions of 4 inches outer diameter on one end and 3.5 inches...$23.65 -
BESTfit 4 To 3.5 Inch ID-OD X 8 Inch OAL Aluminized Steel Reducer Pipe
BESTFIT TRUCK PARTS
$26.51BESTfit 4 To 3.5 Inch ID-OD X 8 Inch OAL Aluminized Steel Reducer PipeIntroducing the Aluminized Steel Reducer, designed to seamlessly transition your exhaust system. With precise dimensions of 4 inches inside diameter and 3.5 inches outside diameter,...$26.51 -
BESTfit 4 To 3.5 Inch ID-ID X 8 Inch OAL Aluminized Steel Reducer Pipe
BESTFIT TRUCK PARTS
$29.77BESTfit 4 To 3.5 Inch ID-ID X 8 Inch OAL Aluminized Steel Reducer PipePresenting the Aluminized Steel Reducer, designed for seamless integration into your exhaust system. Featuring dimensions of 4 inches inside diameter on one end and 3.5 inches inside...$29.77 -
BESTfit 3.5 To 3 Inch OD-OD X 8 Inch OAL Aluminized Steel Reducer Pipe
BESTFIT TRUCK PARTS
$30.59BESTfit 3.5 To 3 Inch OD-OD X 8 Inch OAL Aluminized Steel Reducer PipeIntroducing the Aluminized Steel Reducer, meticulously crafted for optimal performance. With dimensions of 3.5 inches outside diameter on one end and 3 inches outside diameter on the...$30.59 -
BESTfit 4 X 16 X 10.5 Inch Aluminized Steel Universal Type B Y-Pipe
BESTFIT TRUCK PARTS
$170.99BESTfit 4 X 16 X 10.5 Inch Aluminized Steel Universal Type B Y-PipeIntroducing our Y Pipe, crafted from durable aluminized steel for long-lasting performance. Featuring a Y-shaped design with dimensions of 4 inches in diameter, 10.5 inches in width, and...$170.99 -
BESTfit 3.5 To 3 Inch O.D.-ID X 8 Inch OAL Aluminized Steel Reducer Pipe
BESTFIT TRUCK PARTS
$25.69BESTfit 3.5 To 3 Inch O.D.-ID X 8 Inch OAL Aluminized Steel Reducer PipeIntroducing our Aluminized Steel Reducer, designed for exceptional performance and durability. With dimensions of 3.5 inches outside diameter reducing to 3 inches inside diameter and...$25.69 -
BESTfit 3.5 To 3 Inch ID-ID X 8 Inch OAL Aluminized Steel Reducer Pipe
BESTFIT TRUCK PARTS
$22.53BESTfit 3.5 To 3 Inch ID-ID X 8 Inch OAL Aluminized Steel Reducer PipeIntroducing our Aluminized Steel Reducers, crafted for durability and performance. These reducers feature dimensions of 3.5 inches inside diameter reducing to 3 inches inside diameter,...$22.53 -
BESTfit 4 Inch O.D. Inlet X 24 Inch Chrome-Plated Steel Flat Top Stack
BESTFIT TRUCK PARTS
$121.99BESTfit 4 Inch O.D. Inlet X 24 Inch Chrome-Plated Steel Flat Top StackIntroducing our Straight Exhaust Tubing, meticulously crafted in the USA from quality chrome-plated steel. With a diameter of 4 inches and a length of 24 inches, this tubing ensures...$121.99 -
BESTfit 5 Inch ID Inlet X 72 Inch Chrome-Plated Steel Miter Cut Stack
BESTFIT TRUCK PARTS
$401.99BESTfit 5 Inch ID Inlet X 72 Inch Chrome-Plated Steel Miter Cut StackIntroducing the Chrome-Plated Steel Miter, designed to elevate your exhaust system with its sleek and durable construction. With dimensions of 5 inches in diameter and 72 inches in...$401.99 -
BESTfit 7-5 X 36 Inch Chrome-Plated Steel Bull Hauler Top Stack
BESTFIT TRUCK PARTS
$561.99BESTfit 7-5 X 36 Inch Chrome-Plated Steel Bull Hauler Top StackIntroducing our Chrome-Plated Steel Exhaust Stack, meticulously crafted in the Bull Hauler style for a sleek and polished look. Made with quality materials, this stack is designed to last...$561.99 -
BESTfit 4 Inch O.D.-I.D. X 24 Inch 16 Gauge Aluminized Steel Tube
BESTFIT TRUCK PARTS
$46.20BESTfit 4 Inch O.D.-I.D. X 24 Inch 16 Gauge Aluminized Steel TubeIntroducing our Straight Exhaust Tubing, expertly crafted from Aluminized 12 Gauge Steel for durability and longevity. With a 4-inch diameter and 24-inch length, it offers ample sizing for...$46.20 -
BESTfit 5 Inch ID-O.D. X 4 Inch OAL Aluminized Steel Type A Turbo Pipe With 5.25 Inch Diameter Flange For Detroit 6V/8V92T
BESTFIT TRUCK PARTS
$228.99BESTfit 5 Inch ID-O.D. X 4 Inch OAL Aluminized Steel Type A Turbo Pipe With FlangeIntroducing our machined Turbo Air Research T525-Style-B exhaust pipe, meticulously crafted for optimal performance. With a length of 4 inches and a diameter of 5 inches in...$228.99