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 Steel Custom Mirror Brackets, Door Mount For Peterbilt
CHROME SHOP MAFIA
$563.99Steel Custom Mirror Brackets By Chrome Shop MafiaThis Peterbilt custom door-mount mirror brackets by Chorme Shop Mafia has a sturdy construction with 1-inch round tubes, extending 22 inches out from the door just like the factory part. They effortlessly...$563.99 -
CSM Aluminum Diamond Plate Battery Box, 30 x 30 x 15 1/2 Inch W/ Step For Peterbilt 359, 378, 379, 386
CHROME SHOP MAFIA
$649.99Old School Style Aluminum Battery Box With SS T Latches By Chrome Shop MafiaProtect your battery from exposure to water and grease with this high quality 30 inch battery box with perforated step. Featuring an old-style design, the lid and step are made...$649.99 -
5 Inch Programmable Electric Speedometer - 80MPH/140KPH
ISSPRO
$381.990-80MPH Electric Programmable SpeedometerThe ISSPRO 5 inch Programmable Electric Speedometer offers dual MPH and KPH readings, with a 0-80 MPH range in white and a 0-120 KPH range in orange. Its black bezel and orange pointer ensure clear visibility...$381.99 -
18 Inch Chrome Steel Texas Square Rolled End Bumper W/ Mounting & Tow/Hitch Holes 15 - 3/4 Inch Light Holes For Peterbilt 378/ 379 Conventional 1987-2007
VALLEY CHROME PLATING
$609.99Valley Chrome 18 Inch Chrome Steel Texas Square Rolled End Bumper W/ Mounting & Tow/Hitch Holes 15 - 3/4 Inch Light Holes * High Quality Bumper* Made Of Chrome Steel* Has Cutouts For:- Mounting Holes- Tow/Hitch Holes- 15 - 3/4 Inch Light Holes* 18 Inch...$609.99 -
Rockwood Chrome Back Up Light Rocker Switch Cover For Peterbilt 2006-Newer
ROCKWOOD
$16.99Chrome Plated Backup Light Actuator ButtonRenew the look of your rocker switch to control your backup lights with this chrome plated cover. It is designed to allow the LED to shine through and fits various 2006 and newer Peterbilt models. This cover is...$16.99 -
Rockwood Stainless Steel PTO Switch Cover For Peterbilt
ROCKWOOD
$18.99SS Horizontal Switch Cover W/ PTO EngravingThis Rockwood cover fits over the horizontal PTO rocker switch on your dash. It fits various Peterbilt trucks with the new style of dash. The cover is made of stainless steel and is engraved. * High Quality...$18.99 -
Rockwood Stainless Steel Control Panel With 8 Switches For Peterbilt 378, 379
ROCKWOOD
$57.99SS 8 Switch Control Panel W/ EngravingsEnhance the look of your dashboard panel with this stainless steel trim. It has pre-cut holes for 8 switches, a lighter, an accessory, and 2 parking brake knobs. Rockwood takes pride in crafting all their products...$57.99 -
Chrome Exhaust Connector 5 Inch I.D. To 5 Inch I.D.
UNITED PACIFIC
$34.87Chrome Plated Exhaust Connector * High Quality Exhaust Connector* Chrome-Plated* 5 Inch I.D. To 5 Inch I.D.* With Triple Chrome Plating Process* Sold Individually* Warranty On Exhaust Connectors Against Defects In Workmanship & Material From Date Of...$34.87 -
Stainless Steel Switch Plate- Lift Axle- Down/Up For Peterbilt
UNITED PACIFIC
$4.17Switch Plate- Lift Axle- Down/Up * High Quality Switch Plate* Made Of Stainless Steel* Lift Axle -Down/Up- Script* Laser Etched For Unparalleled Detail* Sold Individually* Warranty On Switch Plate Against Defects In Workmanship & Material From Date Of...$4.17 -
7 Inch Round Chrome Half Moon Style Halo Projector Amber LED Headlight W/ Clear Lens
UNITED PACIFIC
$294.49Stainless Steel Bullet Half Moon Headlight LED Projection Headlight & Amber LED Turn Signal W/ Clear Lens * High Quality Headlight* Stainless Steel * Bullet Half Moon Style * With LED Turn Signal- Clear Lens* Fully Assembled With LED Projection Headlight...$294.49 -
4 X 6 Inch Rectangular High Power LED Headlight W/ Super Bright LED Dual Function Light, 6 White LED Light Bar
UNITED PACIFIC
$58.999 High Power LED Headlight W/ Dual Function Light & White LED Light Bar * Headlight * Die-Cast Aluminum Housing* 4 Inch X 6 Inch Rectangular Light * With LED Light Bar* 9 High Power LEDs* For Off-Road Use Only* Output Rating Of 1600 Lumens On Low...$58.99 -
Chrome Head Light Bezel W/ Visor, 14 Amber LEDs, Fit Dual Square Headlights
UNITED PACIFIC
$38.99Chrome Dual Square Headlight Bezel With Amber LED Lightbar StripEnhance the look of your vehicle's headlights with our Headlight Bezel. Crafted from durable chrome-plated plastic, this dual bezel comes with a stylish visor for added flair. It features a...$38.99