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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20 Inch Chrome Steel Tapered End Bumper W/ Mounting Holes Only W/ 2 Tow Holes And UST Mounting Plate Boltless No Mounting Holes
VALLEY CHROME PLATING
$1,407.99Valley Chrome 20 Inch Chrome Steel Tapered End Bumper W/ Mounting Holes Only W/ 2 Tow Holes And UST Mounting Plate * High Quality Bumper* Made Of Chrome Steel* Has Cutouts For:- Mounting Holes Only- W/ 2 Tow Holes And UST Mounting Plate* 20 Inch Chrome...$1,407.99 -
20 Inch Blind Mount Stainless Texas Boxed End Bumper W/ UST Mount Plates
VALLEY CHROME PLATING
$1,602.99Valley Chrome Texas Boxed End Blind Mount Bumper Fits Freightliner, Kenworth & PeterbiltThis stainless steel blind mount bumper features a unique Texas Boxed End design. It comes with UST mounting plates for easy installation and has a cutout in the top...$1,602.99 -
Stainless Steel 22 Inch Blind Mount Texas Boxed End Bumper W/ UST Mount Plates
VALLEY CHROME PLATING
$1,854.99Valley Chrome Texas Boxed End Bumper Fits Freightliner, Kenworth & Peterbilt * High Quality Bumper* Made Of Stainless Steel* Texas Boxed End Style With Blind Mount* 22 Inch Tall* Blind Mount* Includes UST Mounting Bracket* Has Cutout In Top Of Bumper *...$1,854.99 -
48 Inch Flat Top Sleeper Cap For Peterbilt 377, 378, 379 Ultra Cab Models
FIBERTECH
$1,669.99Sleeper Roof Cap Conversion Fits Peterbilt * High Quality Roof Cap For 48 Inch Sleeper* Get That Cool Flat Top Look And Keep Your Ultra Cab Sleeper Comfort * Ready To Install, Comes Complete With Aluminum Roof Support Bracing * Sold Individually* Made In...$1,669.99 -
Flat Top Roof Cap, 63 Inch For Peterbilt Flat Top Models Only
FIBERTECH
$2,109.9963 Inch Flat Top Replacement Roof Cap * High Quality Roof Cap* 63 Inch* Flat Top Factory* Sold Individually* Warranty On Roof Caps Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not OEM)****...$2,109.99 -
6 Inch Extended Day Cab Conversion Kit W/ Fiberglass Interior, 19 X 36 Inch Rear Window For Peterbilt Ultracab
FIBERTECH
$2,499.003-Piece Day Cab Extension W/ Aluminum Bracing, Factory Rear Window Glass & Mounting Hardware * High Quality Day Cab Conversion Kit * Extended* Kit Includes: - 3-Piece 6 Inch Cab Extension- Bonded 1 Inch X 2 Inch Aluminum Bracing- Fiberglass Interior...$2,499.00 -
Fibertech Day Cab Flat Panel Complete Conversion Kit W/ Black Interior For Peterbilt
FIBERTECH
$2,507.99Peterbilt Day Cab Flat Panel W/ Aluminum Bracing, Window Trim, Rear Window Glass, & HardwareThe Day Cab Flat Panel Complete Conversion Kit with Black Interior adds an impressive 4 inches of extra leg room to your Peterbilt 378, 379, 386, 388, 389, or 389...$2,507.99 -
Stainless Steel Battery Box For Peterbilt 378, 379 & 389
VALLEY CHROME PLATING
$1,473.99Wingmaster Battery Box Stainless Steel Fits Peterbilt 378/379/389 * High Quality Battery Box* Made Of 304 Stainless Steel* Formed Lid With Smooth Rounded Front Edge * 12 Gauge Lid* 16 Gauge Back And Bottom* Mounts To Factory Box Mounting Angles - Not...$1,473.99 -
Gen III Steer Axle Air Ride Kit For Peterbilt 379 2007-Older
TWELVE GAUGE
$2,429.9912 Gauge Steer Axle Air Ride Kit Gen III Fits Peterbilt 379 1987-2007 * High Quality Steer Axle Air Ride Kit* Kit Contains:- U-Bolts- Air Bags- Upper Air Bag Mounts- Lower Air Bag Mounts- Air Valves- Air Lines- Shock Studs- Electric Control Valve Rear...$2,429.99 -
Ultra-Flat Top Style 63 Inch Conversion Sleeper Cap For 63 Inch Peterbilt Ultra Cabs
FIBERTECH
$2,109.99Conversion Sleeper Cap Fits Peterbilt 377, 378, 379, 388, 389, & 389 Gliders.The Ultra-Flat Top Style 63 Inch Conversion Sleeper Cap is perfect if you want to give your truck that sleek flat top look while keeping your ultra cab comfortable. This sleeper...$2,109.99 -
Flat Panel Day Cab Kit For Peterbilt 375, 377, 378, 379, 388, & 389
FIBERTECH
$1,546.99Flat Panel Day Cab Kit Fits Peterbilt * High Quality Flat Panel Day Cab Kit * Made Of Fiberglass* 1 Inch x 2 Inch Aluminum Bracing* Fiberglass Interior Window Trim* 19 Inch x 36 Inch Rear Window Glass* Window Seal And Hardware And Light Gray Interior...$1,546.99 -
Ultra Cab Deluxe Day Cab Conversion Kit For Peterbilt
FIBERTECH
$1,892.99Ultra Cab Deluxe Day Cab Conversions Kit Fits Peterbilt * High Quality Conversion Kit* Made Of Fiberglass* Comes Complete with Bonded, Internal Aluminum Bracing and Mounting Hardware* Kit Includes: - One-Piece Fiberglass Panel- Bonded 1 X 2 Inch Aluminum...$1,892.99