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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CSM Diamond Plate Aluminum Air Line Box W/ Single Electrical Plug Hole
CHROME SHOP MAFIA
$245.99Aluminum Air Line Box w/ Single Electrical Plug Hole By Chrome Shop MafiaHide unsightly connectors on the back of your truck with this CSM Air Line Box. Made of lightweight aluminum with diamond tread, it is precut for a single electrical plug hole. *...$245.99 -
Steel Air Tank 12 Inch Diameter X 29.5 Inch Length 2850 Cubic Inch Volume - Black
BESTFIT TRUCK PARTS
$166.89Air Tank With 3/4 Inch Front & Back Port With 1/4 Inch NPT Drain Port * High Quality Air Tank* Overall Length 29.50 Inch* 12 Inch Diameter * Trailer* Type 1 Bracket Orientation* Volume: 2,850 Cubic Inches* 3/4 Inch NPT Front Port* 3/4 Inch NPT Back Port*...$166.89 -
Lower Dash Trim Right Side Of Fuse Door For Peterbilt
TURNPIKE TRUCK TRIM
$25.19Lower Dash Trim Fits Peterbilt * High Quality Dash Trim * Made Of Stainless Steel* Right Side Of Fuse Door* Made In USA* Sold Individually* Warranty On Dash Trims Against Defects In Workmanship & Material From Date Of Purchase** Number 2 In Photo...$25.19 -
Aluminized Steel Exhaust Down Pipe Replaces 14-14194 For Peterbilt 375, 377, 378, 379
AFTERMARKET
$181.99Exhaust Down Pipe Below Turbo Pipe Fits Peterbilt * High Quality Down Pipe* Made Of Aluminized Steel* With Detroit Engine* Pipe That Comes After The Turbo Pipe On Most Models* Sold Individually* Warranty On Down Pipes Against Defects In Workmanship &...$181.99 -
Rockwood Stainless Steel Parking Brake Warning Plate For Peterbilt
ROCKWOOD
$25.99SS Parking Brake Plate W/ EngravingsAccent and protect the area around your air brake knobs on your Peterbilt dash with this high quality statement plate. Made of stainless steel, it is engraved with a reminder to apply the parking brake before leaving...$25.99 -
Torpedo Cab Light Lens - Amber
UNITED PACIFIC
$8.25Amber Torpedo Cab Light * High Quality Cab Light Lens* Amber* Torpedo* Sold Individually* Warranty On Cab Light Lens Against Defects In Workmanship & Material From Date Of Purchase***High Quality Aftermarket Replacement Part (Not OEM)**** This Item Is...$8.25 -
BESTfit Wiring Harness Cover For Peterbilt 359/379
BESTFIT TRUCK PARTS
$46.91BESTfit Peterbilt Firewall Wiring Harness CoverProtect your vehicle's wiring harness with our Firewall Wiring Harness Cover, proudly made in the USA. Sold individually, this aftermarket replacement part is designed to meet high standards, although it's...$46.91 -
Center Bolt Metric 12MM X 150MM
AUTOMANN USA
$2.9912MM X 150MM Center Bolt * High Quality Center Bolt* 12MM OD X 150MM Length* 18MM X 12MM Head* Sold Individually * Warranty On Center Bolts Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not...$2.99 -
5 Inch Plain Economy Exhaust Y-Pipe Combo For Peterbilt 357, 378 Passenger Side W/ Hi Mount Exhaust
BESTFIT TRUCK PARTS
$653.995 Inch Exhaust Y-Pipe Combo Fits Peterbilt 357 & 378 Passenger Side * Economy Exhaust Elbow* Y Pipe* 5 Inch OD* Thickness 0.062 Inch* Sold Individually* Warranty On Exhaust Elbow Against Defects In Workmanship & Material From Date Of Purchase*** High...$653.99 -
68 Degree Turbo Pipe Replaces 14-14256 For Peterbilt
BESTFIT TRUCK PARTS
$84.69Peterbilt Turbo Connection PipeThis high quality turbo pipe has a 68 inch degree bend and features a hole for a pyrometer probe. It has a 5.85 inch OD with a Flange and a 4.860 inch ID. The pipe fits various Peterbilt 377, 378, and 379 models. * High...$84.69 -
3 Piece ABS Cover Trim For Peterbilt
ROADWORKS
$39.99ABS Cover Trim Fits Peterbilt * High Quality ABS Cover Trim* Made Of Stainless Steel* 3 Piece* Number 6 In Picture* Made In USA* Sold Individually* Warranty On ABS Cover Trims Against Defects In Workmanship & Material From Date Of Purchase***High Quality...$39.99 -
SS AC/Heater Control Panel Trim W/ Bunk Heat Switch For Peterbilt
ROADWORKS
$28.55Stainless Steel AC/Heater Control Panel Trim Fits Peterbilt * High Quality Control Panel Trim* Made Of Stainless Steel* With Bunk Heat Switch* Made In USA* Sold Individually* Warranty On Control Panel Trim Against Defects In Workmanship & Material From...$28.55