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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Snow Plow Single Side Double Bellow Smaller Bellow Air Ride Kit
LOAD-SHARE SUSPENSIONS
$1,080.99Snow Plow Single Side Double Bellow Smaller Bellow Air Ride Kit * High Quality Air Ride Kit* Snow Plow Single Side Double Bellow Smaller Bellow* Sold Individually* Warranty On Air Ride Kits Against Defects In Workmanship & Material From Date Of...$1,080.99 -
16 Inch Chrome Billet Aluminum Step Plate Pair - Chrome Base With Rubber Raised Grip Insert
LIFETIME NUT COVERS
$610.9916 Inch Chrome Billet Aluminum Step Plate By Lifetime * High Quality Step Plate* Made Of Chrome Plated Billet Aluminum* 16 Inch* Chrome Base * With Rubber Raised Grip Insert* Made In USA* Sold As Pair* Warranty On Step Plates Against Defects In...$610.99 -
24 Inch Chrome Swoop Style Billet Step Plate W/ Rubber Inserts
LIFETIME NUT COVERS
$648.9924 Inch Chrome Swoop Style Billet StepEasily mount these durable step plates by Lifetime Nut Covers to your tool box or battery box step plates. They are constructed of chrome plated billet aluminum with durable rubber inserts. Featuring a swoop design,...$648.99 -
Bottom Mounting Bracket For Double Side 2 Air Springs Per Side
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$128.99Bottom Mounting Bracket * High Quality Mounting Bracket* For Double Side - (2) Air Springs Per Side* Sold Individually* Warranty On Mounting Brackets Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement...$128.99 -
Lady Silhouette Mudflap - Left Facing
GLOBETECH
$23.91Black Mudflap With Lady Silhouette * High Quality Mud Flap * Black* Lady Silhouette Facing Left Design* Sold Individually* Warranty On Mud Flap S Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part...$23.91 -
Lady Silhouette Mudflap - Right Facing
GLOBETECH
$24.95Black Mudflap With Lady Silhouette * High Quality Mud Flap* Black* Lady Silhouette Facing Right Design* Sold Individually* Warranty On Mud Flaps Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part...$24.95 -
Shock Bolt With Shoulder For Front Air Ride Kits
LOAD-SHARE SUSPENSIONS
$59.155/8 Inch Diameter Shock Bolt With Shoulder Includes Nuts & Washers * High Quality Steel Bolt* 5/8 Inch Diameter* Used in Air Ride Kits And Other Applications* Includes Nuts And Washers* Sold Individually***High Quality Aftermarket Replacement Part (Not...$59.15 -
Fast Flap Quick Mount & Release Mud Flap Mount Kit
MINIMIZER
$171.95Minimizer Fast Flap Quick Mount And Release Mud Flap Mount KitThis high quality Fast Flap quick mount and release mount kit includes 4 brackets to mount a pair of mud flaps and is easy to install. The kit should not be used with spring loaded mud flap...$171.95 -
Air Bag Replaces C81-1003, C81-1012, C81-6000 & W01-358-8813 For Flex Air, AG380 & Airglide Suspensions
AFTERMARKET
$198.99Replacement Air Spring Rolling Lobe For Peterbilt & Kenworth * High Quality Air Spring * Sold Individually* Warranty On Air Spring Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not OEM)****...$198.99 -
1 1/4 Inch Bullet Style Chrome Plastic Nut Cover Without Flange
LIFETIME NUT COVERS
$2.341 1/4 Inch Bullet Style Chrome Plastic Nut Cover Without Flange By Lifetime Nut Covers * High Quality Nut Cover* Made Of Chrome Plated Plastic* 1 1/4 Inch* Bullet Style * Without Flange* Sold Individually* Warranty On Nut Covers Against Defects In...$2.34 -
Single Side Air Bag With Controller And Bracket
LOAD-SHARE SUSPENSIONS
$485.99Single Side Air Bag With Controller And Bracket * High Quality Air Bag* Single Side * With Controller And Bracket* Sold Individually* Warranty On Air Bags Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket...$485.99 -
Single Side Air Bag Replacement Kit for 4 Inch Round Top U Bolt & Double Convolute
LOAD-SHARE SUSPENSIONS
$573.99Single Side Air Bag Replacement Kit for 4 Inch Round Top U Bolt & Double Convolute * High Quality Air Bag Replacement Kit* Single Side * Replacement Kit For 4 Inch Round Top U Bolt* Sold Individually* Warranty On Air Bag Replacement Kit Against Defects...$573.99