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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Oil Seal Rear Output Shaft
OPP - ORIGINAL PARTS PROGRAM
$104.99Oil Seal Rear Output Shaft * High Quality Oil Seal Rear Output Shaft* Replaces OEM # 127592* Sold Individually* Warranty On Output Shaft Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not...$104.99 -
Oil Seal Differential Input Shaft For Eaton DSP & RSP40-404 - Replaces 127591
OPP - ORIGINAL PARTS PROGRAM
$46.89Oil Seal Differential Input Shaft * High Quality Oil Seal Differential Input Shaft* Replaces OEM # 127591* Sold Individually* Warranty On Input Shaft Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement...$46.89 -
On Sale
Silver Road Shock With Big 1.75 Inch Bore Replaces B71-6012, C71-1002 For Flex Air Suspension
AFTERMARKET
Now: $88.50Was: $176.99Silver Road Shock Fits Flex Air Suspension Applications * High Quality Shock* Fits Flex Air Suspension Applications* Big 1.75 Inch Bore* Delivers More Control Force* Improved Ride And Stability* Longer Tire Life Than Standard Shocks* Sold Individually***...Now: $88.50Was: $176.99 -
CSM Frame Pinch Bar For Deck Plate Mounting
CHROME SHOP MAFIA
$26.31Frame Pinch Bar For Deck Plate Mounting By Chrome Shop Mafia * High Quality Frame Pinch Bar * Made Of Aluminum* Dimensions:- 1/4 Inch Thick- 32 Inch Length- 2 Inch Width* Used For Mounting- Deck Plates- Center Light Panels- Various Frame Mount...$26.31 -
16.5 X 7 Inch Brake Shoe Kit 4709ES Plus
AFTERMARKET
$113.99Brake Shoe Kit / No Cores Required * High Quality Brake Shoe Kit 4709ES Plus* Contains 2 Shoes And 1 Hardware Kit* Shoes Have 23K Standard Lining* Sold As Kit *** High Quality Aftermarket Replacement Part (Not OEM)**** This Item Is Special Order. This...$113.99 -
16.5 X 7 Inch Brake Shoe Kit 4515Q Plus
AFTERMARKET
$81.094515Q+ Brake Shoe Kit / No Cores Required * High Quality Brake Shoe Kit * 4515Q Plus* Contains: - 2 Shoes - 1 Hardware Kit* Have 23K Standard Lining* No Core Charge* Sold As Kit * Warranty On Brake Shoe Kits Against Defects In Workmanship & Material From...$81.09 -
3.5 Inch Front Axle Bottom Shocks Mounting Kit Use With Air Ride Kit For Peterbilt 378 2006 - 2007
LOAD-SHARE SUSPENSIONS
$255.993.5 Inch Front Axle Bottom Shocks Mounting Kit Use With Air Ride Kit * High Quality Mounting Kit* Front Axle Bottom Shocks* 3.5 Inch* Use With Air Ride Kit* Sold As A Kit* Warranty On Mounting Kits Against Defects In Workmanship & Material From Date Of...$255.99 -
10 Hole Unimount Balanced Wheel Brake Drum
OPP - ORIGINAL PARTS PROGRAM
$205.99Brake Drum * High Quality Drum* Brake Size: 16.5 x 7 Inches* Bolt Number: 10* Bolt Center Diameter: 7.56 inches* Surface Flat: 7.56 inches* Balanced* Sold Individually* Warranty on Brake Drum Against Defects In Workmanship & Material From Date Of...$205.99 -
Shock Absorber 1.63 Inch Bore Replaces 85006, 65111
AFTERMARKET
$51.39Shock Absorber * High Quality Absorber * 1.63 Inch Bore* Collapsed Length 17.09 Inches* Extended Length 28.5 Inches* Sleeve Mounting* Sold Individually* Warranty On Shock Absorber Against Defects In Workmanship & Material From Date Of Purchase*** High...$51.39 -
On Sale
Shock Absorber Replaces 66634, 66893
OPP - ORIGINAL PARTS PROGRAM
Now: $10.92Was: $41.99Shock AbsorberCommercial Truck and Trailer shocks designed as a direct replacement for OE shocks. They designed to deliver an unbeatable ride comfort, control, and performance. * High Quality Shock Absorber* 1.38 Inch* Replaces Monroe # 66634, 66893*...Now: $10.92Was: $41.99 -
On Sale
Shock Absorber 1.63 Inch Bore
OPP - ORIGINAL PARTS PROGRAM
Now: $7.80Was: $52.01Shock Absorber * High Quality Absorber* 1.63 Inch Bore* Collapsed length 11.47 inches* Extended length 17.22 inches* Sleeve mounting* Sold Individually* Warranty on shock absorber against defects in workmanship & material from date of purchase*** High...Now: $7.80Was: $52.01 -
Double Air Bag For Canadian Load Share Air Ride Kit
DAYTON / DORMAN
$244.99Double Air Bag For Canadian Load Share Air Ride Kit * High Quality Air Bag* Double* Sold Individually* Warranty On Air Bags Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not OEM)**** This...$244.99