Peterbilt 357/378 Elbows, Piping & Comp.

Peterbilt 357/378 Elbows, Piping & Comp.

Peterbilt 357/378 Elbows, Piping & Comp.

Make upgrading your exhaust system a breeze with aftermarket universal elbows, piping and components for your Peterbilt 378. Find the perfect custom, chrome, and aftermarket exhaust pipes. Upgrade your Peterbilt exhaust without breaking the bank at 4 State Trucks.
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  • Freightliner BESTfit 5 Inch O.D. Chrome Y-Pipe, Replaces A04-13974-000
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    Freightliner BESTfit 5 Inch O.D. Chrome Y-Pipe, Replaces A04-13974-000

    BESTFIT TRUCK PARTS

    $477.99
    BESTfit Chrome-Plated Steel Y Exhaust Pipe W/ 5 Inch O.D. Inlet & OutletsUpgrade your exhaust system with this premium Exhaust Y-Pipe made of durable chrome-plated steel. Designed for optimal performance, it features a 5-inch outer diameter inlet and two...
    $477.99
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    $477.99
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  • BESTfit 5 Inch Diameter Steel Universal Exhaust Y-Pipe 15 Inch L X 30 Inch W
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    BESTfit 5 Inch Diameter Steel Universal Exhaust Y-Pipe 15 Inch L X 30 Inch W

    BESTFIT TRUCK PARTS

    $139.99
    BESTfit Steel Exhaust Y-PipeEnhance your vehicle's exhaust system with our Steel 5-Inch Y-Divider Exhaust Pipe. Constructed for durability and efficiency, this aftermarket replacement part is designed to optimize exhaust flow. With dimensions of 15...
    $139.99
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    $139.99
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  • BESTfit 5 Inch Diameter Chrome Universal Exhaust Y-Pipe 9 Inch L X 18 Inch W
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    BESTfit 5 Inch Diameter Chrome Universal Exhaust Y-Pipe 9 Inch L X 18 Inch W

    BESTFIT TRUCK PARTS

    $227.99
    BESTfit Universal 5 Inch O.D. Exhaust Y-PipeUpgrade your exhaust system with our Chrome-Plated Steel 5-Inch Y-Divider Exhaust Pipe. Crafted for durability and style, this aftermarket replacement part features a sleek chrome-plated finish. With dimensions...
    $227.99
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    $227.99
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  • BESTfit 5 Inch OD Steel Universal Exhaust Y-Pipe, 9 x 18 Inch
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    BESTfit 5 Inch OD Steel Universal Exhaust Y-Pipe, 9 x 18 Inch

    BESTFIT TRUCK PARTS

    $119.99
    BESTfit 5-Inch OD Inlet, 5-inch OD Outlet Steel Exhaust Y-DividerEnhance your vehicle's exhaust system with our Steel 5-Inch Diameter Exhaust Pipe. Crafted from durable steel, this aftermarket replacement part boasts a 9-inch length and an 18-inch width,...
    $119.99
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    $119.99
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  • BESTfit 5 Inch Diameter Steel Universal Exhaust Y-Pipe 9 Inch L X 18 Inch W
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    BESTfit 5 Inch Diameter Steel Universal Exhaust Y-Pipe 9 Inch L X 18 Inch W

    BESTFIT TRUCK PARTS

    $122.99
    BESTfit Exhaust Y-Pipe * High Quality Exhaust Pipe * Made Of Steel* 5 Inch Y-Divider* 9 Inch Length * 18 Inch Width * 5 Inch R* Sold Individually* Warranty On Exhaust Pipe Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    $122.99
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    $122.99
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  • Peterbilt 377 BESTfit Chrome 5 Inch ID/O.D. Exhaust Elbow, 19 Inch Length, Passenger Side Replaces 14-11380R Peterbilt 377 BESTfit Chrome 5 Inch ID/O.D. Exhaust Elbow, 19 Inch Length, Passenger Side Replaces 14-11380R
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    Peterbilt 377 BESTfit Chrome 5 Inch ID/O.D. Exhaust Elbow, 19 Inch Length, Passenger Side Replaces 14-11380R

    BESTFIT TRUCK PARTS

    $325.99
    BESTfit Passenger Side 19 Inch Multi-Bend Exhaust Elbow For Bottom Of Muffler W/ 5 Inch O.D. Inlet & OutletThis aftermarket replacement part is a multi-bend style exhaust elbow made of chrome-plated steel. It is designed to fit the passenger side at the...
    $325.99
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    $325.99
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  • Peterbilt 377 BESTfit Chrome Exhaust Elbow Replaces 14-11380L For Driver Side Peterbilt 377 BESTfit Chrome Exhaust Elbow Replaces 14-11380L For Driver Side
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    Peterbilt 377 BESTfit Chrome Exhaust Elbow Replaces 14-11380L For Driver Side

    BESTFIT TRUCK PARTS

    $325.99
    BESTfit Driver Side Chrome Multi-Bend Exhaust Elbow For Bottom Of Muffler Fits 377 or 378 PeterbiltThis aftermarket replacement part is a multi-bend style elbow made of chrome-plated steel. Designed to fit the driver's side at the bottom of the muffler,...
    $325.99
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    $325.99
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  • Peterbilt 378, 379 BESTfit Chrome 15 Inch 56 Degree Exhaust Elbow W/ 5 Inch O.D. Peterbilt 378, 379 BESTfit Chrome 15 Inch 56 Degree Exhaust Elbow W/ 5 Inch O.D.
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    Peterbilt 378, 379 BESTfit Chrome 15 Inch 56 Degree Exhaust Elbow W/ 5 Inch O.D.

    BESTFIT TRUCK PARTS

    $154.99
    BESTfit Chrome-Plated Steel Exhaust Elbow, Replaces 14-13056CThis aftermarket replacement part is crafted from chrome-plated steel and features a 5-inch outer diameter (OD/OD). With a 15-inch length and a 56-degree bend, it is designed to exacting...
    $154.99
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    $154.99
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  • Peterbilt 377, 378 SBA, 378 SFA, 379 BESTfit Chrome 5 Inch ID/O.D. Y Exhaust Pipe, Replaces 14-13055
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    Peterbilt 377, 378 SBA, 378 SFA, 379 BESTfit Chrome 5 Inch ID/O.D. Y Exhaust Pipe, Replaces 14-13055

    BESTFIT TRUCK PARTS

    $522.99
    BESTfit Chrome-Plated Steel Exhaust Y-Pipe W/ 5 Inch ID Inlet & 5 Inch O.D. OutletsThis aftermarket replacement part is constructed from chrome-plated steel and features a 5-inch inner diameter (I.D.) inlet and 5-inch outer diameter (O.D.) outlets. Made...
    $522.99
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    $522.99
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  • Peterbilt BESTfit 5 Inch Aluminized Y-Pipe Exhaust W/ 5 Inch ID Inlet, Replaces 14-13055 Peterbilt BESTfit 5 Inch Aluminized Y-Pipe Exhaust W/ 5 Inch ID Inlet, Replaces 14-13055
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    Peterbilt BESTfit 5 Inch Aluminized Y-Pipe Exhaust W/ 5 Inch ID Inlet, Replaces 14-13055

    BESTFIT TRUCK PARTS

    $327.99
    BESTfit Exhaust Y-Pipe Replaces 14-13055Crafted from aluminized steel, this Exhaust Y Pipe boasts a robust build and is proudly made in the USA. With a 5-inch inner diameter inlet and a matching 5-inch outer diameter outlet, it ensures optimal exhaust...
    $327.99
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    $327.99
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  • Peterbilt 379 BESTfit Chrome Exhaust Elbow Replaces 14-13906R For Passenger Side
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    Peterbilt 379 BESTfit Chrome Exhaust Elbow Replaces 14-13906R For Passenger Side

    BESTFIT TRUCK PARTS

    $510.99
    BESTfit Passenger Side Chrome Multi-Bend Exhaust Elbow For Bottom Of Muffler Fits 379 PeterbiltConstructed from chrome-plated steel, this multi-bend style elbow is tailored to fit the passenger side bottom of the muffler. Featuring a 5-inch outer...
    $510.99
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    $510.99
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  • Freightliner TPHD 5 Inch Aluminized Y-Pipe For Use With Long Drop Elbows, Replaces A04-13974-000
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    Freightliner TPHD 5 Inch Aluminized Y-Pipe For Use With Long Drop Elbows, Replaces A04-13974-000

    TPHD

    $184.99
    Aluminized Steel Exhaust Y Pipe W/ 5 Inch OD Inlet & OutletsThe aftermarket exhaust Y pipe offered here is crafted from durable aluminized steel, ensuring longevity and reliable performance. Featuring a 5-inch OD inlet and outlets with straight ends and...
    $184.99
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    $184.99
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