
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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6 X 20 Inch Crystal White Step Plate Insert For S2
IOWA CUSTOMS
$46.40Step Plate Insert Crystal White With Flat Ends * High Quality Galvanized Steel Step Plate Insert* Powder Coat Color - Crystal White* Fits Iowa Customs 6 Inch W X 20 Inch L S2 Style Step* Rectangle Shaped With Flat Ends* Made In USA* Sold Individually*...$46.40 -
Stainless Steel Recessed Air Line Box
IOWA CUSTOMS
$528.99Air Line Box * High Quality Recessed Air Line Box* Made Of Stainless Steel * With Openings for 1 Electric And 2 Air Hook Up* Sold Individually* Warranty On Recessed Air Line Box Against Defects In Workmanship & Material From Date Of Purchase*** High...$528.99 -
Bright Diamond Tread Finish 72 Inch Deck Plate - Universal Fit
IOWA CUSTOMS
$481.9972 Inch Bright Diamond Tread Finish Deck PlateThis is a custom-made 72 inch deck plate has a bright diamond tread plate finish. * High Quality Deck Plate* 72 Inch* With Bright Diamond Tread Plate Finish* Sold Individually* Warranty On Deck Plate Against...$481.99 -
Steel 4 X 20 Inch Rectangle Step Plate Insert - Gloss Black For Iowa Customs Series 1 Step
IOWA CUSTOMS
$45.44Step Plate Insert Gloss Black With Concave EndsThe High Quality Galvanized Steel Step Plate Insert is proudly made in the USA. It comes in a Gloss Black Powder Coat Color and is designed to fit perfectly on Iowa Customs 4 Inch wide X 20 Inch long Series...$45.44 -
Iowa Customs Aluminum 18 Inch Recessed Air Line Box W/ Trailer Air And 2 Electric 7 Way Plugs
IOWA CUSTOMS
$408.99Aluminum 18 Inch Recessed Air Line Box W/ Trailer Air And 2 Electric 7 Way Plugs * High Quality Air Line Box* Made Of Aluminum* 18 Inch* Recessed * With Trailer Air * 2 Electric 7 Way Plugs* Made In USA* Sold Individually* Warranty On Air Line Boxes...$408.99 -
Steel 4 X 20 Inch Rectangle Step Plate Insert - Red Brown For Iowa Customs Series 1 Step
IOWA CUSTOMS
$44.38Step Plate Insert Red Baron With Concave EndsThe High Quality Gal Steel Step Plate Insert is proudly made in the USA. It comes in a vibrant Red Baron Powder Coat Color and is designed to fit perfectly on Iowa Customs 4 Inch wide X 20 Inch long Series...$44.38 -
On Sale
Brushed Stainless Steel 6 X 12 Inch Rectangle Step Plate Insert For Iowa Customs Series 1 Step
IOWA CUSTOMS
Now: $22.19Was: $44.38Step Plate Insert Brushed Stainless Steel With Concave Ends * High Quality Step Plate Insert* Stainless Steel* Color - Brushed SS* Fits Iowa Customs 6 Inch W X 12 Inch L S1 Style Step* Rectangle Shaped With Concave Ends* Made In USA* Sold Individually*...Now: $22.19Was: $44.38 -
Stainless Steel 6 X 20 Inch Rectangle Step Plate Insert - Polished For Iowa Customs Series 1 Step
IOWA CUSTOMS
$48.41Step Plate Insert Polished Stainless Steel With Concave Ends * High Quality Galvanized Steel Step Plate Insert* Powder Coat Color - Polished 304 SS* Fits Iowa Customs 6 Inch W X 20 Inch L S1 Style Step* Rectangle Shaped With Concave Ends* Made In USA*...$48.41 -
Steel 6 X 30 Inch Rectangle Step Plate Insert - Gloss Black For Iowa Customs Series 1 Step
IOWA CUSTOMS
$45.34Step Plate Insert Gloss Black With Concave Ends * High Quality Galvanized Steel Step Plate Insert* Powder Coat Color - Gloss Black* Fits Iowa Customs 6 Inch W X 30 Inch L S1 Style Step* Rectangle Shaped With Concave Ends* Made In USA* Sold Individually*...$45.34 -
Steel 4 X 20 Inch Rectangle Step Plate Insert - Post Office Blue For Iowa Customs Series 1 Step
IOWA CUSTOMS
$42.37Step Plate Insert Post Office Blue With Concave EndsThe High Quality Gal Steel Step Plate Insert is proudly made in the USA. It comes in a vibrant Post Office Blue Powder Coat Color and is designed to fit perfectly on Iowa Customs 4 Inch wide X 20 Inch...$42.37 -
4 X 20 Inch Aluminum Billet Step Plate S1 Style
IOWA CUSTOMS
$128.99Step Plate Billet Aluminum Finish With Concave Ends * High Quality Step Plate * Billet Aluminum* Size:- 4 Inch Width- 20 Inch Length* Designed To Accept Colored Or Stainless Inserts, Sold Separately* Made To Fit Flat Surfaces Only* S1 Style - Rectangle...$128.99 -
Aluminum 20 Inch Deck Plate Filler
IOWA CUSTOMS
$245.99Deck Plate 20 Inch Filler Section AluminumUpgrade your Iowa Customs frame deck plates with this 20-inch smooth aluminum filler section. The easy-to-install flange attachment ensures a secure fit, so you can get back on the road quickly. * Made Of High...$245.99