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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Stainless Steel Air Line Box - Single Elec Plug - Bolted In Ends
PHOENIX DESIGN
$271.99Airline Box W/ Single Electric PlugCrafted from stainless steel, the Air Line Box incorporates two cutouts for air lines. For increased durability and security, its ends are bolted. The overall length of the box measures 32 inches. * High Quality Air...$271.99 -
Bulldog HD Rear Shock Absorber For Peterbilt 362, 375, 377, 378, 379, 386, 387, 587
BULLDOG HD SHOCKS
$81.16Heavy Duty Shock Absorber Fits Peterbilt 362, 375, 377, 378, 379, 386, 387 & 587Bulldog HD shocks are fleet tested and approved. This is a premium rear replacement shock reengineered to be better than the factory part that came with your truck. It...$81.16 -
Bulldog HD Rear Shock Absorber 10.12 Stroke Replaces 03-05106, 03-05384, 03-06084 For Peterbilt
BULLDOG HD SHOCKS
$71.65Heavy Duty Shock Absorber Fits Peterbilt 330, 362, 375, 377, 378, 379, 386, 387 & 587Bulldog HD shocks are fleet tested and approved. This is a premium rear replacement shock reengineered to be better than the factory part that came with your truck. It...$71.65 -
Bulldog HD Rear Shock Absorber 10.87 Replaces 03-05106, 03-05384, 03-06084 For Peterbilt
BULLDOG HD SHOCKS
$56.65Heavy Duty Shock Absorber Fits Peterbilt 330, 362, 377, 378, 379, 386, 387 & 587Bulldog HD shocks are fleet tested and approved. This is a premium rear replacement shock reengineered to be better than the factory part that came with your truck. It...$56.65 -
Bulldog HD Rear Shock Absorber 8.9 Stroke Replaces 03-04629, 03-07281, 03-07421 For Peterbilt
BULLDOG HD SHOCKS
$68.73Heavy Duty Shock Absorber Fits Peterbilt 330, 335, 359, 362, 375, 377, 378, 379, 386, 389, 567 & 587Bulldog HD shocks are fleet tested and approved. This is a premium rear replacement shock reengineered to be better than the factory part that came with...$68.73 -
Bulldog HD Rear Shock Absorber 9.02 Stroke Replaces 03-04629, 03-07281, 03-07421 For Peterbilt
BULLDOG HD SHOCKS
$58.17Heavy Duty Shock Absorber Fits Peterbilt 362, 375, 377, 378, 386, 387 & 587Bulldog HD shocks are fleet tested and approved. This is a premium rear replacement shock reengineered to be better than the factory part that came with your truck. It features a...$58.17 -
Bulldog HD Cab Shock Absorber For Peterbilt 357, 367, 375, 377, 378, 379, 386, 389
BULLDOG HD SHOCKS
$56.34Bulldog Heavy Duty Cab Shock Absorber Replaces 29-02455, 654782, R71-6007Bulldog HD Cab Shock Absorbers is a premium replacement part, isolating the cab from the frame to prevent road induced noise, vibration and harshness from reaching the driver...$56.34 -
Bulldog HD Front Shock Absorber Replaces 02-01890, 02-02225, 02-02738 For Peterbilt
BULLDOG HD SHOCKS
$80.11Heavy Duty Shock Absorber Fits Peterbilt 362, 375, 377, 378, 379, 385 & 386Find premium shock replacements for your truck at 4 State Trucks. We carry these front Bulldog Heavy Duty Shocks, reengineered to last longer and perform better than the part that...$80.11 -
Stainless Steel 2 Step Crossmember Frame Steps For 7.875 Inch Bolt Spacing For Peterbilt
ROADWORKS
$498.992 Step Cross Member Frame Steps For Peterbilt With 7.875 Bolt Spacing * High Quality Crossmember Frame Step * Made Of Stainless Steel * Two Steps * 7.875 Bolt Spacing * Sold Individually * Warranty On Crossmember Frame Step Against Defects In Workmanship...$498.99 -
18 X 27 Inch Vertical Diamond Pattern Quilted Vinyl Fender Guard W/ Snaps On Side, Top - Wine Color
ROBERT JAMES ENTERPRISES
$155.99Wine Colored Quilted Vinyl Fender Guard W/ Snaps On Side & Top - Not BottomAdd an extra layer of protection to your fenders with this pair of front fender covers by Robert James Enterprises. They are made of wine colored quilted vinyl with a diamond...$155.99 -
18 X 32.5 Inch Vertical Diamond Pattern Quilted Vinyl Fender Guard W/ Snaps On Side, Top - Wine Color
ROBERT JAMES ENTERPRISES
$241.99Wine Colored Quilted Vinyl Fender Guard W/ Snaps On Side & Top - Not BottomAdd an extra layer of protection to your fenders with this pair of front fender covers by Robert James Enterprises. They are made of wine colored quilted vinyl with a diamond...$241.99 -
3.5 X 63 Inch Stainless Steel Sleeper Panel W/ 7 Amber LED Clear Lens Lights For Peterbilt
TRUX ACCESSORIES
$441.99Best Fit 63 Inch Sleeper Panels W/ 14 Amber/Clear Lights Fits Peterbilt 300 SeriesThis pair of quality sleeper panels fit Peterbilt models with a 63 inch sleeper. They mount underneath the sleeper and have a smooth stainless steel 3 inch face. Each panel...$441.99