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 Visor For 7 Inch & 5.75 Inch Round Headlights
UNITED PACIFIC
$5.79Visor Fits 7 Inch And 5.75 Inch Round HeadlightsIntroducing our Stainless Steel Headlight Visor, a versatile accessory designed to fit both 7-inch and 5.75-inch single round headlights. This visor offers a universal fit for 7-inch headlights and can be...$5.79 -
TPHD 6 Inch Narrow Chrome-Plated Exhaust Clamp For Peterbilt 359, 377, 378 & 379
TPHD
$19.476 Inch Narrow Chrome-Plated Exhaust Clamp For PeterbiltUpgrade your exhaust system with this aftermarket 6-inch Exhaust Clamp. Made of durable 304 stainless steel, this clamp ensures corrosion resistance and longevity. Its narrow style and two-bolt...$19.47 -
SS 8 Inch Exhaust Straight Band Clamp For Peterbilt 377, 378, 379, 386, 388, 389
UNITED PACIFIC
$83.02Peterbilt 8 Inch Wide Style Exhaust Mounting ClampUpgrade your clamping system with these stainless steel clamps, designed for durability and performance. With an 8-inch diameter and wide style, these clamps provide secure fastening for various...$83.02 -
BESTfit Stainless Steel Hydraulic Fuel Tanks Strap For 24 Inch Diameter Tank
BESTFIT TRUCK PARTS
$49.99BESTfit 1 7/8 Inch X 56 Inch Eye To Eye Hydraulic Tank Strap * High Quality Tank Strap* Stainless Steel* Width 1-7/8 Inch* Length 56 Inch Eye To Eye / Does Not Include Stud Length* Has Eye Bolt On Each End* For 24 Inch Round Hydraulic Tank* Use With...$49.99 -
Double Ring Mounting for 5.75" LED Headlight Model 8630 (Dual)
AFTERMARKET
$270.89JW Speaker 5.75" Double Ring Kit Mounting Assembly for LED Headlight Model 8630 used in Dual 5.75" Headlight Configurations.- Sold Each (One required for Harley Roadglide. Two required for Automotive Application - Left & Right) Double JJ Headlight...$270.89 -
3 Inch Rubber Headlight Cap
AFTERMARKET
$21.413 Inch Rubber Headlight Cap * Made Of High Quality Rubber* 3 Inch * Fits Back Of Crystal And Projection Style Headlights* Includes Clamp To Headlight* Sold Individually***High Quality Aftermarket Replacement Part (Not OEM)***$21.41 -
Rockwood Stainless Steel Lift Axle Switch Plate For Peterbilt
ROCKWOOD
$7.19SS Lift Axle Switch PlateProtect and label your Peterbilt Lift Axle switch with this luxury ID plate with 1 round opening by Rockwood Products. It is made of stainless steel and engraved with a cursive font. The plate is made in the USA and is sold...$7.19 -
6 To 5 OD x 84 Inch Chrome Bull Hauler Turnout Exhaust Stack
UNITED PACIFIC
$447.99Chrome 84 Inch Tall Bull Hauler Bottom Exhaust Stack W/ 6 Inch Reduced To 5 Inch OD - Exhaust Stack- Chrome-Plated- 84 Inch Length- With Triple Chrome Plating Process- Sold Individually- Warranty On Bottom Exhausts Against Defects In Workmanship &...$447.99 -
Peterbilt 375, 377, 378, 379, 386, 388, 389 BESTfit Stainless Steel Lower Cab Exhaust Bracket
BESTFIT TRUCK PARTS
$47.99BESTfit 304 Stainless Steel Straight Exhaust Cab Bracket For PeterbiltThis aftermarket replacement part is a stainless steel component designed for the lower cab. It includes brackets with rubber gaskets and is compatible with wide band clamps. It is...$47.99 -
BESTfit 4 Inch Wide Aluminum Fuel Tank Strap & Liner Kit For Peterbilt With 26 Inch Tanks
BESTFIT TRUCK PARTS
$259.99BESTfit 4 Inch Wide Aluminum Fuel Tank Strap & Liner KitThis fuel tank strap and liner fits a 26 inch diameter tank. The strap is 4 inches wide and made of aluminum. The liner is 7 foot long. Replaces OE number 11-03596. * High Quality Fuel Tank Strap &...$259.99 -
Aluminum Side Step Bracket For 26 Inch Peterbilt Fuel Tank
AUTOMANN USA
$108.99Aluminum 26 Inch Fuel Tank Bracket for Peterbilt 379, 385, And 386 ModelsThis aluminum fuel tank step side bracket is designed to fit a 26-inch Peterbilt fuel tank. It has pre-cut mounting holes for a 4.75-inch upper step, spaced 2.75 inches apart, and a...$108.99 -
BESTfit Chrome 5 Inch Curve Turn Out Exhaust Stack - 18 Inch Length W/ Outside Diameter Inlet-Plain
BESTFIT TRUCK PARTS
$72.99BESTfit 5 Inch Chrome 18 Inch Curve Turn Out Exhaust Stack With Plain Inlet - O.D.Upgrade the exhaust system to your truck with the BESTfit Curve Turn Out Exhaust Stack. Made from high-quality chrome-plated steel, this 18 inch long exhaust stack features...$72.99