Peterbilt 357/378 Parts
Find the best Peterbilt 378 aftermarket parts in the business here at 4 State. The Peterbilt 378 semi truck represents all of the characteristics of the Peterbilt brand, and was a popular model with similar features to the Peterbilt 379. Pete truck models are a brand of choice for experienced truckers who need dependable semi trucks. 4 State Trucks has all the semi truck parts and accessories you need to make your Pete 378 stand out to showcase your unique personality. Whether you need aftermarket bumpers, exhaust, or fuel tanks, we've got you covered. Hit the open road in style and comfort with the best custom gear for your Peterbilt heavy duty truck or 18 wheeler.
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BESTfit 26 Inch Fuel Tank End Cap For Peterbilt
BESTFIT TRUCK PARTS
$361.99BESTfit Fuel Tank End Cap Fits Peterbilt * High Quality Fuel Tank End Cap* Aluminum* 26 Inch Diameter* Sold Individually***High Quality Aftermarket Replacement Part (Not OEM Part)***$361.99 -
5x7 LED Projector Headlight w/ White Auxiliary Angel Ring
TRUX ACCESSORIES
$259.995" x 7" Standard LED Projector Headlight with White Auxiliary Angel Ring TLED-H4 D.O.T Compliance Yes Sold Individual Designed to Fit Driver / Passenger Side Bulb Type LED Projector Lumens 895 Beam High / Low Beam Function Auxiiary Angel...$259.99Qty in Cart: 0Quantity:Price:$259.99Subtotal: -
BESTfit Pivot Connection Beam End Kit - SRK01 For Watson & Chalin
BESTFIT TRUCK PARTS
$161.99BESTfit Pivot Connection Beam End Kit Replaces SRK01The Beam End Kit is equipped to work with Watson and Chalin lifts and trailers, comprising of 2 pivot bushings, 2 cap screws, 4 washers, 2 lock nuts, and 4 U bolt washers. It's built for compatibility...$161.99 -
1.772 OD X 60.75 Inch Cross Tube
BESTFIT TRUCK PARTS
$159.991.772 OD X 60.75 Inch Cross Tube * High Quality Cross Tube* 1.772 Inch O.D* 1 1/8 Inch - 12 I.D.* 60.75 Inch Length * Sold Individually * Warranty On Cross Tube Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket...$159.99 -
CSM Smooth Aluminum Air Line Box
CHROME SHOP MAFIA
$234.99Smooth Aluminum Air Line Box By Chrome Shop Mafia * High Quality CSM Air Line Box* Made Of Aluminum* Can Be Painted* Has Sanded Smooth Welds* With Holes For 2 Airlines * Single 7 Wire* Sold Individually* Warranty On Air Line Box Against Defects In...$234.99 -
24 X 30 Inch Black Heavy Duty Rubber Mud Flap Kit W/ SS Weights
AUTOMANN USA
$114.9924 X 30 X 1/2 Inch Black Heavy Duty Smooth Mud Flaps With WeightsThe heavy duty mud flap kit includes two smooth black 1/2 inch thick rubber mud flaps and two stainless steel flap weights with mounting hardware. Keep your ride cleaner and reduce damage...$114.99 -
Steel Air Tank Replaces 08-01276, 08-02347, G86-1067-02 - Black For Peterbilt 300 Series
BESTFIT TRUCK PARTS
$374.9534 Inch Air Tank Fits Peterbilt 377, 378, 379, 385, 386, 387, 388, 389 & 389 GliderThis BESTfit replacement 9.625 inch diameter Peterbilt air tank measures 33.5 inches long. It features 3 1/2 inch main ports, with two 1/2 inch and two 1/4 inch end ports...$374.95 -
Stainless Steel 8.25 X 1.50 Inch Air Tank Straps For Peterbilt 379, 378, 386 & 389
PHOENIX DESIGN
$86.591.5 X 8.25 Inch Stainless Steel Air Tank Straps * High Quality Air Tank Strap* Made Of Stainless Steel* 8.25 Inches Diameter X 1.5 Inches Wide* Sold As Pair * Made In USA* Warranty On Air Tank Strap Against Defects In Workmanship & Material From Date Of...$86.59 -
Stainless Steel Airline Box W/ 2 Electric Plug Holes & Bolted In Ends
PHOENIX DESIGN
$285.99SS Air Line Box W/ 2 Electric Plug Holes & Bolted In Ends * High Quality Air-Line Box* Made Of Stainless Steel* Has 2 Electrical Plug Holes With Bolted In Ends* Sold Individually* Warranty On Air-Line Box Against Defects In Workmanship & Material From...$285.99 -
Stainless Steel Hood Wing 9 X 42 Inch
VALLEY CHROME PLATING
$403.99Wingmaster Hood WingSave on fuel costs and help keep your rig stabilized during windy conditions with this highly functional stainless steel Valley Chrome Hood Wing at 4 State Trucks. It is designed to help propel the wind up over the trailer, instead of...$403.99 -
Aluminized Steel Flared Exhaust Adapter 5.72 OD X 6.25 Inch - 41689 For Cummins 855CI W/T50 Turbo
AUTOMANN USA
$23.55Flared 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...$23.55 -
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