
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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Glass Watermelon Dual Function Light with Stainless Steel Bracket – White LED, Clear Lens
UNITED PACIFIC
$37.75Upgrade your vehicle's lighting with a dual function glass watermelon lightEnhance your vehicle's appearance and safety with our glass watermelon dual function light. This LED light features a clear glass lens and a strong stainless steel bracket,...$37.75 -
Amber Glass Watermelon Marker Light Lenses – 5 Pack
UNITED PACIFIC
$41.99Upgrade your vehicle's lighting with durable amber glass lenses.Enhance your vehicle's lighting system with these amber glass watermelon marker light lenses. Designed for durability and style, this 5-pack allows you to replace or upgrade multiple lenses...$41.99 -
Glass Watermelon Light with Stainless Steel Bracket – Clear Lens
UNITED PACIFIC
$25.00Illuminate Your Vehicle with a Classic Glass Watermelon LightUpgrade your vehicle's lighting with our Glass Watermelon Light featuring a clear lens and stainless steel bracket. This incandescent light comes fully assembled with a pre-installed 1157 bulb,...$25.00 -
Chrome Metal Tube Door Lock Knobs
UNITED PACIFIC
$4.17Twist On Chrome Metal Tube Door LockEnhance your vehicle's interior with our Tube Door Lock Knobs, made from durable chrome-plated metal. Featuring a twist-on installation and inside threading of 10-32, these knobs are designed for easy and secure...$4.17 -
Chrome Barefoot Shape Gas Pedal Cover
UNITED PACIFIC
$12.99Chrome Plated Barefoot Accelerator PedalEnhance your vehicle's interior with our Chrome-Plated Metal Gas Pedal Cover. Measuring 9 inches in a distinctive barefoot shape, this cover mounts over your existing 2-inch or smaller width accelerator pedal for a...$12.99 -
On Sale
Freightliner, Kenworth, Peterbilt 7 OD X 52 Inch Chrome Spool Replaces 24ZPX-70048CP
LINCOLN CHROME
Now: $357.50Was: $576.997 OD X 52 Inch Seamless Chrome Spool - Spool - 7 Inch X 52 Inch - Has Tapered Top To Match Od Stack - Sold Individually - Aftermarket Replacement Part (Not OEM)Now: $357.50Was: $576.99 -
Leak Defender Fuel Cap Replacement O-Ring
HEAVY TRUCK SOLUTIONS
$10.46Leak Defender Fuel Cap Gasket Seal ReplacementLooking for a reliable aftermarket replacement part for your fuel cap? Our black O-ring is designed specifically for fuel cap replacement, ensuring a secure and tight seal. Sold individually, this O-ring is a...$10.46 -
20-Inch Stainless Steel Mud Flap Weights
TURNPIKE TRUCK TRIM
$67.99Enhance Mud Flap Stability with 20-Inch Stainless Steel WeightsEnsure your mud flaps remain securely in place with these 20-inch stainless steel weights. Designed to minimize movement and maintain optimal positioning, these weights contribute to both the...$67.99 -
Stainless Steel Dome Light Bracket with Dual Watermelon Light and Toggle Switch Cutouts for Peterbilt 378 & 379
JML KUSTOMS
$69.99Enhance Your Peterbilt's Interior with a Durable and Stylish Dome Light BracketUpgrade your Peterbilt 378 or 379 truck's interior lighting with our premium stainless steel dome light bracket. Designed for above-door installation, this bracket features...$69.99 -
Peterbilt Pedals Skull Oval Logo Plate Insert
REALWHEELS
$16.31Skull Oval Logo Plate Insert For Peterbilt PedalsIntroducing the Skull Plate logo for your truck, designed to adhere easily with M3 tape. This aftermarket replacement part adds a bold and distinctive look to your vehicle, perfect for enthusiasts who want...$16.31 -
Peterbilt RealWheels Billet Aluminum Upper Door Grab Handle
REALWHEELS
$210.99Aluminum Upper Door Grab Handle - Grab Handle - Billet Aluminum - Upper Door - One Handle - Made In USA - Sold Individually - Aftermarket Replacement Part (Not OEM)$210.99 -
Peterbilt Pedals USA Oval Logo Plate Insert
REALWHEELS
$16.31USA Oval Logo Plate Insert For Peterbilt PedalsIntroducing the USA Plate logo, an aftermarket replacement part that adheres securely with M3 tape. This plate proudly displays the USA flag design, perfect for showing patriotic spirit on your truck...$16.31