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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Manual Slack Adjuster For Drive And Steer Axles
AUTOMANN USA
$30.90 - $33.38Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks5.5- 6.5 Inch Manual Slack Adjuster For Eaton & Meritor Drive and Steer Axles5.5- 6.5 Inch Manual Slack...PPR_299468- SKU:
- PPR_299468
- Length Options:
- 6 1/2 Inch
- Product Type:
- Frame & Chassis
- Diameter Options:
- 1 1/2 Inch
- Make:
- Universal Items
$30.90 - $33.38Qty in Cart: 0Price:$30.90 - $33.38Subtotal: -
Hydraulic Hose Fitting JIC 37 Female 90 Thread
AFTERMARKET
$54.99 - $89.99Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksHydraulic Hose Fitting JIC 37 Female 90 Thread 3/4 ID X 1-5/16 Inch - 1290 Degree Female Hydraulic Hose...PPR_299449- SKU:
- PPR_299449
- Diameter Options:
- 3/4 Inch
- Product Type:
- Cargo Control
- Degree Options:
- 90
- Make:
- Universal Items
$54.99 - $89.99Qty in Cart: 0Price:$54.99 - $89.99Subtotal: -
Flange Hydraulic Hose Fitting W/ Flange Length
AFTERMARKET
$49.26 - $54.99Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksFlange Hydraulic Hose Fitting Replaces 29320-1216, 293201216, SG-FL-1216, SGFL12163/4 ID X 1.75 X 3.86...PPR_299464- SKU:
- PPR_299464
- Product Type:
- Cargo Control
- Length Options:
- 3 3/4 Inch
- Diameter Options:
- 1 1/2 Inch
- Length Options:
- 3 5/8 Inch
- Diameter Options:
- 3/4 Inch
- Make:
- Universal Items
$49.26 - $54.99Qty in Cart: 0Price:$49.26 - $54.99Subtotal: -
Hydraulic Hose Fitting ORFS Female 90 Thread 1 ID
AFTERMARKET
$87.99 - $102.99Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksHydraulic Hose Fitting ORFS Female 90 Thread 1 ID X 1-7/16 Inch - 1290 Degree ORFS Female Hydraulic...PPR_299459- SKU:
- PPR_299459
- Product Type:
- Cargo Control
- Degree Options:
- 90
- Diameter Options:
- 1 Inch
- Style Options:
- Elbow
- Make:
- Universal Items
$87.99 - $102.99Qty in Cart: 0Price:$87.99 - $102.99Subtotal: -
Hydraulic Hose Fitting JIC 37 Male
AUTOMANN USA
$9.71 - $16.06Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksHydraulic Hose Fitting JIC 37 Male Thread 5/8 ID X 7/8 Inch - 14JIC 37 Male Hydraulic Hose Fitting...PPR_299460- SKU:
- PPR_299460
- Diameter Options:
- 5/8 Inch
- Diameter Options:
- 1/4 Inch
- Length Options:
- 2 3/4 Inch
- Product Type:
- Cargo Control
- Diameter Options:
- 3/8 Inch
- Length Options:
- 2 Inch
- Length Options:
- 2 1/16 Inch
- Make:
- Universal Items
$9.71 - $16.06Qty in Cart: 0Price:$9.71 - $16.06Subtotal: -
Hydraulic Hose Fitting ORFS Female 45 Thread
AFTERMARKET
$47.11 - $51.99Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksHydraulic Hose Fitting ORFS Female 45 Thread 1/2 ID X 1 Inch - 1445 Degree Female Hydraulic Hose ORFS...PPR_299451- SKU:
- PPR_299451
- Product Type:
- Cargo Control
- Degree Options:
- 45
- Diameter Options:
- 1/2 Inch
- Style Options:
- Elbow
- Make:
- Universal Items
- Diameter Options:
- 3/8 Inch
- Length Options:
- 1 1/4 Inch
$47.11 - $51.99Qty in Cart: 0Price:$47.11 - $51.99Subtotal: -
Hydraulic Hose Fitting JIC 37 Female 90 Degree Elbow
AUTOMANN USA
$22.02 - $27.84Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksHydraulic Hose Fitting JIC 37 Female 90 Thread 1/2 ID X 3/4 Inch - 1690 Degree Female Hydraulic Hose...PPR_299456- SKU:
- PPR_299456
- Degree Options:
- 90
- Diameter Options:
- 1/4 Inch
- Product Type:
- Cargo Control
- Make:
- Universal Items
- Length Options:
- 2 Inch
- Diameter Options:
- 1/2 Inch
- Style Options:
- Swivel
- Length Options:
- 2 1/4 Inch
- Length Options:
- 3 Inch
$22.02 - $27.84Qty in Cart: 0Price:$22.02 - $27.84Subtotal: -
Safety Decals W/ Style Options
AUTOMANN USA
$2.30 - $10.40Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of TrucksCaution Wide Turns Decal11.75 X 17.25 Inch Caution Wide Turns Decal* High Quality Decal* "Caution Wide...PPR_299447- SKU:
- PPR_299447
- Color:
- Yellow
- Height Options:
- 1 1/2 Inch
- Height Options:
- 6 Inch
- Product Type:
- Air, Electrical, & Safety
- Width Options:
- 27 Inch
- Height Options:
- 11 1/2 Inch
- Width Options:
- 17 1/4 Inch
- Width Options:
- 5 Inch
- Color:
- White
- Height Options:
- 12 Inch
- Width Options:
- 24 Inch
- Make:
- Universal Items
$2.30 - $10.40Qty in Cart: 0Price:$2.30 - $10.40Subtotal: -
Steel Adapter JIC/ NPTF Male Hose Fitting
AUTOMANN USA
$1.83 - $5.74Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of TrucksSteel Adapter JIC/ NPTF Male Replaces 70365-0808, G60490-0808, G604900808, JCM08-NPM081/2 Inch-14 X 3/4...PPR_299452- SKU:
- PPR_299452
- Diameter Options:
- 3/8 Inch
- Length Options:
- 1 5/8 Inch
- Length Options:
- 1 1/2 Inch
- Length Options:
- 2 Inch
- Length Options:
- 1 1/4 Inch
- Material Options:
- Steel
- Length Options:
- 1 3/4 Inch
- Product Type:
- Cargo Control
- Make:
- Universal Items
$1.83 - $5.74Qty in Cart: 0Price:$1.83 - $5.74Subtotal: -
Yellow 2 Inch X 30 FT Ratchet Strap - 3335 Lbs Working Load
AUTOMANN USA
$20.94 - $27.08Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of TrucksYellow 2 Inch X 30 FT J-Hook Ratchet Strap- 3335 Lbs Working Load2 Inch X 30 FT Yellow J-Hook Ratchet...PPR_299448- SKU:
- PPR_299448
- Product Type:
- Cargo Control
- Rating:
- 10000 LBS
- Color:
- Yellow
- Width Options:
- 2 Inch
- Length Options:
- 360 Inch
- Make:
- Universal Items
$20.94 - $27.08Qty in Cart: 0Price:$20.94 - $27.08Subtotal: -
20 Inch Chrome Texas Boxed End Bumper W/ Tow & 30 Round 3/4 Inch Light Holes For Peterbilt 357, 378 & 379
VALLEY CHROME PLATING
$902.99Valley Chrome 20 Inch Texas Boxed End Bumper W/ Tow & 30 Round 3/4 Inch Light HolesDrive with confidence and style using the Valley Chrome 20 Inch Texas Boxed End Bumper for Peterbilt 357, 378, and...HC00105130BYN- SKU:
- HC00105130BYN
- Light Options:
- Without Lights
- Height Options:
- 20 Inch
- Location:
- Made In USA
- Style Options:
- Texas Boxed End
- Product Type:
- Bumpers
- Finish Options:
- Chrome-Plated
- Material Options:
- Steel
- Make:
- Peterbilt
$902.99Qty in Cart: 0Price:$902.99Subtotal: -
Knoedler Extreme Low Rider Mid Back Seat W/ Headrest, Arms, Isolator- Gray Mordura Cloth
KNOEDLER
$2,249.99Gray Mordura Cloth Extreme Low Rider Mid Back Seat W/ Headrest, Arms, IsolatorOptimize your truck cab with the Knoedler Extreme Low Rider Mid Back Seat, upholstered in durable gray Mordura cloth and...98SCL62MH0D05- SKU:
- 98SCL62MH0D05
- Material Options:
- Nylon
- Product Type:
- Seats
- Degree Options:
- 45
- Color:
- Gray
- Style Options:
- Mid Back
- Make:
- Universal Items
$2,249.99Qty in Cart: 0Price:$2,249.99Subtotal: -
Knoedler Low Rider Air Chief High Back Seat W/ FAS Lumbar, Arms W/ Black Synthetic Leather
KNOEDLER
$1,580.99Black Synthetic Leather Low Rider Air Chief High Back Seat W/ FAS Lumbar, ArmsTake your driving comfort to the next level with the Knoedler Low Rider Air Chief High Back Seat. Lowered by 1.5 inches,...98LRL82TB0S01- SKU:
- 98LRL82TB0S01
- Degree Options:
- 45
- Width Options:
- 20 Inch
- Color:
- Black
- Material Options:
- Synthetic Leather
- Style Options:
- High Back
- Product Type:
- Seats
- Make:
- Universal Items
$1,580.99Qty in Cart: 0Price:$1,580.99Subtotal: -
18 Inch Chrome Blind Mount Tapered Rolled End Bumper For Peterbilt 357 & 378 SFA, 379
VALLEY CHROME PLATING
$1,042.99Valley Chrome 18 Inch Blind Mount Tapered Rolled End BumperTurn heads with the Valley Chrome 18 Inch Blind Mount Tapered Rolled End Bumper for Peterbilt 357, 378, and 379. Designed with a sleek...HCXXXX03UST- SKU:
- HCXXXX03UST
- Location:
- Made In USA
- Type Options:
- Blind Mount
- Finish Options:
- Chrome-Plated
- Light Options:
- Without Lights
- Material Options:
- Steel
- Product Type:
- Bumpers
- Height Options:
- 18 Inch
- Make:
- Kenworth
- Make:
- Peterbilt
- Make:
- Freightliner
- Size Options:
- 7 Gauge
- Style Options:
- Standard Rolled End
$1,042.99Qty in Cart: 0Price:$1,042.99Subtotal: -
Knoedler Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Headrest, Arms, Integrated Compressor- Black & Gray Synthetic Leather
KNOEDLER
$2,625.99Black & Gray Synthetic Leather Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Headrest, Arms, Integrated Compressor- Black & Gray Synthetic LeatherFor drivers seeking a perfect blend of...98SSL62MH0S015- SKU:
- 98SSL62MH0S015
- Product Type:
- Seats
- Color:
- Black
- Material Options:
- Synthetic Leather
- Style Options:
- Mid Back
- Degree Options:
- 45
- Make:
- Universal Items
$2,625.99Qty in Cart: 0Price:$2,625.99Subtotal: -
Knoedler Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Arms, Headrest, Integrated Compressor- Black Synthetic Leather
KNOEDLER
$2,625.99Black Synthetic Leather Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Arms, Headrest, Integrated CompressorMaximize long-haul comfort with the Knoedler Extreme Low Rider Air Chief Mid Back...98SSL62MH0S01- SKU:
- 98SSL62MH0S01
- Color:
- Black
- Style Options:
- Mid Back
- Degree Options:
- 45
- Product Type:
- Seats
- Material Options:
- Synthetic Leather
- Make:
- Universal Items
$2,625.99Qty in Cart: 0Price:$2,625.99Subtotal: -
Knoedler Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Arms, Headrest- Gray Synthetic Leather
KNOEDLER
$2,267.99Gray Synthetic Leather Extreme Low Rider Air Chief Mid Back Seat W/ FAS Lumbar, Arms, HeadrestElevate your driving experience with the Knoedler Extreme Low Rider Air Chief Mid Back Seat, upholstered...98SCL62MH0S05- SKU:
- 98SCL62MH0S05
- Degree Options:
- 45
- Color:
- Gray
- Material Options:
- Synthetic Leather
- Style Options:
- Mid Back
- Product Type:
- Seats
- Make:
- Universal Items
$2,267.99Qty in Cart: 0Price:$2,267.99Subtotal: -
Knoedler Extreme Low Rider Mid Back Seat W/ Headrest, Arms, Isolator- Black Mordura Cloth
KNOEDLER
$2,249.99Black Mordura Cloth Extreme Low Rider Mid Back Seat W/ Headrest, Arms, IsolatorTake command of your cab with the Knoedler Extreme Low Rider Mid Back Seat, designed for maximum comfort and...98SCL62MH0D01- SKU:
- 98SCL62MH0D01
- Product Type:
- Seats
- Color:
- Black
- Material Options:
- Nylon
- Style Options:
- Mid Back
- Degree Options:
- 45
- Make:
- Universal Items
$2,249.99Qty in Cart: 0Price:$2,249.99Subtotal: -
Knoedler Extreme Low Rider Mid Back Seat W/ FAS Lumbar, Arms- Black Synthetic Leather
KNOEDLER
$2,170.99Black Synthetic Leather Extreme Low Rider Mid Back Seat W/ FAS Lumbar, ArmsRide in comfort and style with the Knoedler Extreme Low Rider Mid Back Seat, a high-performance seat designed for drivers...98SCL60MB0S01- SKU:
- 98SCL60MB0S01
- Degree Options:
- 45
- Width Options:
- 20 Inch
- Material Options:
- Synthetic Leather
- Color:
- Black
- Style Options:
- Mid Back
- Product Type:
- Seats
- Make:
- Universal Items
$2,170.99Qty in Cart: 0Price:$2,170.99Subtotal: -
Knoedler Low Rider Air Chief Wide Seat W/ FAS Lumbar, Arms- Black Synthetic Leather
KNOEDLER
$1,580.99Black Synthetic Leather Low Rider Air Chief Wide Seat W/ FAS Lumbar, ArmsDrive in comfort and style with the Knoedler Low Rider Air Chief Wide Seat. The 23-inch wide cushion, mid-back seat, and...98LWL82MH0S01- SKU:
- 98LWL82MH0S01
- Product Type:
- Seats
- Color:
- Black
- Style Options:
- Mid Back
- Material Options:
- Synthetic Leather
- Width Options:
- 23 Inch
- Degree Options:
- 45
- Make:
- Universal Items
$1,580.99Qty in Cart: 0Price:$1,580.99Subtotal:
