Peterbilt 357/378 DPF & Mufflers
Time to replace or upgrade your muffler? Shop Elite Truck Accessories' collection of Peterbilt 378 aftermarket mufflers. We have custom, chrome, and aftermarket mufflers. Find the perfect muffler that fits your style and budget at Elite Truck Accessories
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Exhaust Heat Shield Mounting Clamp Replaces 14-14695 For Peterbilt 377, 378, 379 & 386
AUTOMANN USA
$47.20Mount Clamp For Exhaust Shield Fits Peterbilt 377, 378, 379 & 386 * High Quality Mounting Clamp* Position - Driver Or Passenger Side ? Center Or Upper* Fits 10 Inch Diameter Muffler * Clamp For Mounting Exhaust Heat Shield To Muffler* Sold Individually**...$47.20 -
BESTfit 10 X 30 Inch Performance Shorty Muffler
BESTFIT TRUCK PARTS
$178.99BESTfit 30 Inch Performance Shorty Muffler * High Quality Muffler* Dimensions - 30 Inch Length - 10 Inch Width - 5 Inch I.D.* Designed For Tight Spaces* Muffler Uses Acoustic Louver Sound Dampening* Up To 50 Additional Horsepower And Improved Response*...$178.99 -
Exhaust Heat Shield Mounting Clamp Replaces 14-14668R For Peterbilt 357/378 Passenger Side Lower
AUTOMANN USA
$91.99Muffler Heat Shield Passenger Side Lower Mounting Clamp Fits Peterbilt 357/378 With High Mount Exhaust * High Quality Mounting Clamp* Position-Passenger Side Lower* Fits 10 Inch Diameter Muffler * Lower Left Side Clamp For Mounting Exhaust Heat Shield To...$91.99 -
Exhaust Heat Shield Mounting Clamp Replaces 14-14668L For Peterbilt 357/378 Driver Side Lower
AUTOMANN USA
$90.65Muffler Heat Shield Driver Side Lower Mounting Clamp Fits Peterbilt 357/378 With High Mount Exhaust * High Quality Mounting Clamp* Position-Driver Side Lower* Fits 10 Inch Diameter Muffler * Lower Left Side Clamp For Mounting Exhaust Heat Shield To...$90.65 -
Exhaust Heat Shield Mounting Clamp Replaces 14-14664 For Peterbilt 357/378 Upper
AUTOMANN USA
$45.74Muffler Heat Shield Upper Mounting Clamp Fits Peterbilt 357/378 With High Mount Exhaust * High Quality Mounting Clamp* Position-Driver Or Passenger Side Upper* Fits 10 Inch Diameter Muffler * Upper Clamp For Mounting Exhaust Heat Shield To Muffler* For...$45.74 -
BESTfit 4 Inch In/Out X 8 X 21 Inch Aluminized Steel Type 1 Muffler
BESTFIT TRUCK PARTS
$170.99BESTfit 4 Inch In/Out X 8 X 21 Inch Aluminized Steel Type 1 Muffler * High Quality Muffler* Aluminized Steel* Dimensions- 4 Inch Inside Diameter- 4 Inch Inside Diameter- 11 Inch Body Diameter- 15 Inch Body Length- 21.5 Inch Over All Length* Used In...$170.99 -
BESTfit 5 X 51 Inch Aluminized Steel Exhaust Muffler
BESTFIT TRUCK PARTS
$167.99BESTfitHeavy Gauge Steel W/ Aluminized Plating OE Style Exhaust Muffler * High Quality Exhaust Muffler* Made Of Steel With Aluminized Plating* Dimensions- Inner Diameter: 5 Inch- Outlet Diameter: 5 Inch- Muffler Body Diameter: 10 Inch- Muffler Body...$167.99 -
Galvanized Steel Exhaust Resonator 5 Inch Inlet With 9 Inch Body
BESTFIT TRUCK PARTS
$119.999 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...$119.99 -
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 -
BESTfit 8 X 22 Inch Aluminized Muffler
BESTFIT TRUCK PARTS
$134.99BESTfit Aluminized Muffler 8 Inch Diameter With 5 Inch I.D. Inlet & Outlet * High Quality Muffler* Aluminized* Dimensions- 8 Inch Diameter- 5 Inch I.D. Inlet/Outlet- 14 Inch Length Body- 22 Inch Length Overall* Sold Individually* Warranty On Mufflers...$134.99 -
BESTfit 9 X 12 Inch Short Galvanized Exhaust Muffler
BESTFIT TRUCK PARTS
$84.99BESTfit Short Galvanized Muffler W/ 5 Inch ID Inlet & Outlet * High Quality Muffler* Made Of Galvanized Steel* 9 Inch Diameter Body* 12 Inch Body Length* Inlet 5 Inch Inside Diameter* Outlet 5 Inch Inside Diameter* Sold Individually* Warranty On Muffler...$84.99 -
1-Piece Stainless Steel Diesel Particulate Filter Replaces 4965304NX, 2888247NX For Cummins ISX Engine
GLOBAL EMISSIONS
$2,141.991-Piece Stainless Steel Diesel Particulate Filter Fits Cummins ISX Engine * High Quality Diesel Particulate Filter* Made Of 304 Stainless Steel * Exclusive 1-Piece Canister Design For Durability* OEM Quality Clamps And Gaskets Included* Sold Individually...$2,141.99