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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
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  • Price
  • Subtotal
  • Light Duty Black Steel Coil Rack- 2 X 33 Inch

    Light Duty Black Steel Coil Rack- 2 X 33 Inch

    AFTERMARKET

    $19.00
    2 X 33 Inch Light Duty Coil RackUpgrade your storage system with the Light Duty Black Steel Coil Rack - 2 x 33 Inch, designed to support coils safely and efficiently. Made from durable 1/4 inch...
    09-02070425
    SKU:
    09-02070425
    Product Type:
    Cargo Control
    Length Options:
    33 Inch
    Material Options:
    Steel
    Width Options:
    3 Inch
    Finish Options:
    Black Powder Coat
    Size Options:
    10 Gauge
    Make:
    Universal Items
    $19.00
    Qty in Cart: 0
    Price:
    $19.00
    Subtotal:
  • Adjustable Bar

    Adjustable Bar

    AFTERMARKET

    $66.99 - $121.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks1.5 Inch Round Steel Adjustable Economy Bar- 86 to 109 Inch Length1.5 Inch Round Medium Duty Adjustable...
    PPR_299331
    SKU:
    PPR_299331
    Color:
    Silver
    Length Options:
    116 Inch
    Material Options:
    Steel
    Length Options:
    117 Inch
    Length Options:
    109 Inch
    Size Options:
    14 Gauge
    Size Options:
    16 Gauge
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $66.99 - $121.99
    Qty in Cart: 0
    Price:
    $66.99 - $121.99
    Subtotal:
  • Cluster Hook Assembly- 5400 Lb WLL

    Cluster Hook Assembly- 5400 Lb WLL

    AFTERMARKET

    $39.34
    Cluster Hook AssemblyWhen the job demands adaptable and powerful hardware, this High Quality Cluster Hook Assembly steps up. Each unit features four unique hook options attached to a Grade 70 chain,...
    09-02070423
    SKU:
    09-02070423
    Product Type:
    Cargo Control
    Diameter Options:
    5/16 Inch
    Material Options:
    Steel
    Rating:
    5400 LBS
    Make:
    Universal Items
    $39.34
    Qty in Cart: 0
    Price:
    $39.34
    Subtotal:
  • Galvanized Steel Cargo Bar Holder- Zinc Plated

    Galvanized Steel Cargo Bar Holder- Zinc Plated

    AFTERMARKET

    $45.11
    Cargo Bar HolderProtect your freight and streamline trailer setups with the Galvanized Steel Cargo Bar Holder. Built to accommodate 2 x 4 ft or 4 x 4 ft round load locks, neoprene pads prevent...
    09-02070424
    SKU:
    09-02070424
    Product Type:
    Cargo Control
    Finish Options:
    Galvanized
    Material Options:
    Steel
    Make:
    Universal Items
    $45.11
    Qty in Cart: 0
    Price:
    $45.11
    Subtotal:
  • Steel E Track Beam Socket

    Steel E Track Beam Socket

    AFTERMARKET

    $8.77
    Steel Beam SocketStrength meets simplicity with this durable Steel E Track Beam Socket, designed for quick installation and removal. Just drop in a standard 2" x 4" board and lock it into the track...
    09-02070384
    SKU:
    09-02070384
    Product Type:
    Cargo Control
    Material Options:
    Steel
    Make:
    Universal Items
    $8.77
    Qty in Cart: 0
    Price:
    $8.77
    Subtotal:
  • Clear Plastic Safety Glasses

    Clear Plastic Safety Glasses

    AFTERMARKET

    $5.11
    Safety Glasses- ClearProtect your eyes on the job with these Clear Plastic Safety Glasses, designed for both comfort and safety. Featuring hard-coated polycarbonate lenses, they block 99.9% of UV-A...
    09-23000320
    SKU:
    09-23000320
    Product Type:
    Air, Electrical, & Safety
    Material Options:
    Plastic/Poly
    Width Options:
    8 Inch
    Make:
    Universal Items
    $5.11
    Qty in Cart: 0
    Price:
    $5.11
    Subtotal:
  • 6 Ft Steel Sliding Winch Track

    6 Ft Steel Sliding Winch Track

    AFTERMARKET

    $150.99
    6 Ft Sliding Winch TrackWhen it comes to hauling heavy loads, stability is essential. The 6 Ft Steel Sliding Winch Track delivers unmatched security with heat-treated steel construction and a gray...
    09-02070376
    SKU:
    09-02070376
    Material Options:
    Steel
    Length Options:
    72 Inch
    Color:
    Gray
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $150.99
    Qty in Cart: 0
    Price:
    $150.99
    Subtotal:
  • Pro Safe 5/16 X 3/8 Inch Lever Recoilless Binder- 5400 Lb WLL

    Pro Safe 5/16 X 3/8 Inch Lever Recoilless Binder- 5400 Lb WLL

    AFTERMARKET

    $52.99
    Pro Safe 5/16 X 3/8 Inch Lever Recoilless BinderLoad with confidence using the Pro Safe 5/16 x 3/8 Inch Lever Recoilless Binder, engineered for professional-grade chain tensioning. Its 5,400 lb WLL...
    09-02070378
    SKU:
    09-02070378
    Length Options:
    15 1/4 Inch
    Material Options:
    Steel
    Height Options:
    2 Inch
    Width Options:
    6 Inch
    Rating:
    5400 LBS
    Color:
    Red
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $52.99
    Qty in Cart: 0
    Price:
    $52.99
    Subtotal:
  • 5/16 Inch X 250 Ft Grade 70 Steel Chain- 4700 Lb WLL

    5/16 Inch X 250 Ft Grade 70 Steel Chain- 4700 Lb WLL

    AFTERMARKET

    $676.99
    5/16 Inch X 250 Ft Grade 70 Steel ChainSerious tie-down demands call for serious equipment, and this Grade 70 Steel Chain doesn't disappoint. At 250 feet long, it provides unmatched reach, while the...
    09-02070411
    SKU:
    09-02070411
    Product Type:
    Cargo Control
    Material Options:
    Steel
    Diameter Options:
    5/16 Inch
    Rating:
    4700 LBS
    Make:
    Universal Items
    $676.99
    Qty in Cart: 0
    Price:
    $676.99
    Subtotal:
  • 2 Inch Steel Cam Buckle- 1000 Lb WLL, 3000 Lb Breaking Strength

    2 Inch Steel Cam Buckle- 1000 Lb WLL, 3000 Lb Breaking Strength

    AFTERMARKET

    $6.97
    2 Inch Steel Cam BuckleDurable, strong, and reliable, the 2 Inch Steel Cam Buckle is designed for use with 2-inch webbing tie-downs. Featuring high-strength steel construction and a gold and silver...
    09-02070349
    SKU:
    09-02070349
    Material Options:
    Steel
    Rating:
    3000 LBS
    Width Options:
    2 Inch
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $6.97
    Qty in Cart: 0
    Price:
    $6.97
    Subtotal:
  • Steel 4K Wide Handle Ratchet- 1400 Lb WLL, 4400 Lb Breaking Strength

    Steel 4K Wide Handle Ratchet- 1400 Lb WLL, 4400 Lb Breaking Strength

    AFTERMARKET

    $10.60
    Steel 4K Wide Handle Ratchet1Secure heavy loads effortlessly with the Steel 4K Wide Handle Ratchet, perfect for 2-inch webbing tie-downs. Its wide handle design increases leverage and efficiency,...
    09-02070351
    SKU:
    09-02070351
    Rating:
    4500 LBS
    Height Options:
    1 1/2 Inch
    Length Options:
    5 1/4 Inch
    Material Options:
    Steel
    Product Type:
    Cargo Control
    Width Options:
    3 1/2 Inch
    Make:
    Universal Items
    $10.60
    Qty in Cart: 0
    Price:
    $10.60
    Subtotal:
  • Steel Series E Fitting W/ 2 Inch D Ring- 1300 Lb WLL, 4000 Lb Breaking Strength

    Steel Series E Fitting W/ 2 Inch D Ring- 1300 Lb WLL, 4000 Lb Breaking Strength

    AFTERMARKET

    $12.72
    Steel Series E Fitting W/ 2 Inch D RingTake your cargo tie-down setup to the next level with the Steel Series E Fitting with 2 Inch D Ring. Precision-engineered from high-strength steel, this...
    09-02070353
    SKU:
    09-02070353
    Rating:
    6000 LBS
    Shape Options:
    D-Shape
    Material Options:
    Steel
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $12.72
    Qty in Cart: 0
    Price:
    $12.72
    Subtotal:
  • Red Steel 1/2- 5/8 Inch Ratchet Binder- 13000 Lb WLL

    Red Steel 1/2- 5/8 Inch Ratchet Binder- 13000 Lb WLL

    AFTERMARKET

    $82.99
    Red Steel 1/2- 5/8 Inch Ratchet BinderDon't compromise on load security-choose the Red Steel 1/2-5/8 Inch Ratchet Binder. Designed for 1/2 to 5/8-inch Grade 70 chains, its 13,000 lb WLL rating and...
    09-02070377
    SKU:
    09-02070377
    Length Options:
    17 Inch
    Width Options:
    15 Inch
    Color:
    Red
    Height Options:
    2 1/2 Inch
    Material Options:
    Steel
    Product Type:
    Cargo Control
    Rating:
    13000 LBS
    Make:
    Universal Items
    $82.99
    Qty in Cart: 0
    Price:
    $82.99
    Subtotal:
  • 2 Inch Steel Grab Hook W/ Pear Link Assembly- 5400 Lb WLL, 16200 Lb Breaking Strength

    2 Inch Steel Grab Hook W/ Pear Link Assembly- 5400 Lb WLL, 16200 Lb Breaking Strength

    AFTERMARKET

    $13.91
    2 Inch Steel Grab Hook W/ Pear Link AssemblyThe 2 Inch Steel Grab Hook with Pear Link Assembly is ideal for industrial and commercial load securing. Compatible with 2-inch ratchet and winch straps,...
    09-02070345
    SKU:
    09-02070345
    Diameter Options:
    3/8 Inch
    Product Type:
    Cargo Control
    Width Options:
    2 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    $13.91
    Qty in Cart: 0
    Price:
    $13.91
    Subtotal:
  • 1 Inch PVC Coated Steel S Hook- 365 Lb WLL, 1100 Lb Breaking Strength

    1 Inch PVC Coated Steel S Hook- 365 Lb WLL, 1100 Lb Breaking Strength

    AFTERMARKET

    $3.49
    1 Inch PVC Coated Steel S HookEngineered for strength and durability, the 1 Inch PVC Coated Steel S Hook works seamlessly with 1-inch tie-down webbing. Constructed from high-strength steel and coated...
    09-02070347
    SKU:
    09-02070347
    Product Type:
    Cargo Control
    Color:
    Black
    Material Options:
    Steel
    Finish Options:
    Black Powder Coat
    Rating:
    1000 LBS
    Make:
    Universal Items
    $3.49
    Qty in Cart: 0
    Price:
    $3.49
    Subtotal:
  • 1 Inch Steel Ratchet- 1100 Lb WLL, 3300 Lb Breaking Strength

    1 Inch Steel Ratchet- 1100 Lb WLL, 3300 Lb Breaking Strength

    AFTERMARKET

    $6.25
    1 Inch Steel RatchetFor reliable load control, the 1 Inch Steel Ratchet is designed to work with 1-inch webbing and withstand tough conditions. Featuring high-strength steel construction and a gold...
    09-02070348
    SKU:
    09-02070348
    Material Options:
    Steel
    Length Options:
    4 3/4 Inch
    Height Options:
    1 1/2 Inch
    Product Type:
    Cargo Control
    Width Options:
    2 1/2 Inch
    Rating:
    3000 LBS
    Make:
    Universal Items
    $6.25
    Qty in Cart: 0
    Price:
    $6.25
    Subtotal:
  • Steel Series E Fitting W/ 1 Inch O Ring- 2000 Lb WLL, 6000 Lb Breaking Strength

    Steel Series E Fitting W/ 1 Inch O Ring- 2000 Lb WLL, 6000 Lb Breaking Strength

    AFTERMARKET

    $14.62
    Steel Series E Fitting W/ 1 Inch O RingHeavy-duty and dependable, the Steel Series E Fitting with 1 Inch O Ring provides a secure anchor for 1-inch webbing, perfect for trucking and industrial...
    09-02070350
    SKU:
    09-02070350
    Diameter Options:
    1 Inch
    Rating:
    6000 LBS
    Product Type:
    Cargo Control
    Material Options:
    Steel
    Make:
    Universal Items
    $14.62
    Qty in Cart: 0
    Price:
    $14.62
    Subtotal:
  • 2 Inch Steel Narrow Flat Hook- 1835 Lb WLL, 5500 Lb Breaking Strength

    2 Inch Steel Narrow Flat Hook- 1835 Lb WLL, 5500 Lb Breaking Strength

    AFTERMARKET

    $7.57
    2 Inch Steel Narrow Flat HookEnsure your loads stay secure with the 2 Inch Steel Narrow Flat Hook, designed specifically for 2-inch webbing straps. With a working load limit of 1,835 lbs and breaking...
    09-02070338
    SKU:
    09-02070338
    Material Options:
    Steel
    Rating:
    5500 LBS
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $7.57
    Qty in Cart: 0
    Price:
    $7.57
    Subtotal:
  • Black Rubber Eye Bolt Chock

    Black Rubber Eye Bolt Chock

    AFTERMARKET

    $26.56
    Rubber Eye Bolt ChockDesigned for strength and reliability, the Black Rubber Eye Bolt Chock keeps trucks and heavy equipment stationary on any paved surface. Its durable rubber body ensures maximum...
    09-02070321
    SKU:
    09-02070321
    Product Type:
    Wheels
    Length Options:
    7 1/2 Inch
    Height Options:
    5 Inch
    Color:
    Black
    Material Options:
    Rubber
    Width Options:
    9 1/4 Inch
    Make:
    Universal Items
    $26.56
    Qty in Cart: 0
    Price:
    $26.56
    Subtotal:
  • 4 Inch Steel Container Heavy Duty Hook- 5400 Lb WLL, 16200 Lb Breaking Strength

    4 Inch Steel Container Heavy Duty Hook- 5400 Lb WLL, 16200 Lb Breaking Strength

    AFTERMARKET

    $17.62
    4 Inch Steel Container Heavy Duty HookSecure your cargo with confidence using the 4 Inch Steel Container Heavy Duty Hook, designed for 4-inch external webbing. Constructed of high-strength steel with...
    09-02070341
    SKU:
    09-02070341
    Color:
    Silver
    Rating:
    16000 LBS
    Material Options:
    Steel
    Width Options:
    4 Inch
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $17.62
    Qty in Cart: 0
    Price:
    $17.62
    Subtotal:
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Adding your products to cart

The Peterbilt 357 and 378 are known for their no-nonsense durability and old-school style. Whether you’re hauling heavy loads or running construction jobs, these workhorses are built to last—and we’re here to help you keep them in top shape.

Why Choose Aftermarket Peterbilt 357/378 Truck Parts?

- Engineered for your model: Every part is made to fit and function with your 357 or 378—so you can skip the guesswork and get back to work. - Performance you can count on: Keep your truck running strong with engine, transmission, suspension, fiberglass Pete 357/378 hood shells, LED headlights, and cab lighting accessories designed to turn heads. - Trusted brands, proven quality: We only carry parts from manufacturers we trust, so you know you're getting durable, road-tested gear. - Quick shipping, expert help: Get your parts fast and reach out to our team if you need help finding the right fit—we’ve got your back.

Shop the Perfect Aftermarket Accessories for Peterbilt 357/378 Trucks


Whether you're restoring a classic or keeping your work truck rolling, our Peterbilt 357 and 378 parts are built to match the strength and legacy of these iconic models. We stock a wide selection of aftermarket and replacement parts designed specifically for Peterbilt 357 and 378 models. From critical mechanical components to sleek interior cab accessory upgrades, we’ve got what you need to maintain, repair, or customize your rig. Explore our full selection and get the parts you need to keep your rig road-ready.

Frequently Asked Questions About Peterbilt 357/378 Parts

What years and models are compatible with Peterbilt 357/378 parts?

Most aftermarket parts for Peterbilt 357/378 trucks are designed to fit models from 1987 through 2007. However, there are important differences between early models (1987-1999) and later models (2000-2007), particularly in hood mounting points and grille configurations. Always verify the specific year range listed for each part, as some components like bumpers and fenders may have changed mounting hole patterns after the 2000 model year update.

Are aftermarket bumpers as durable as OEM Peterbilt bumpers?

Quality aftermarket bumpers are typically made from 16-gauge steel (same as OEM) and feature triple chrome plating or powder coating for corrosion resistance. The main differences you'll find are in the finishing details and fitment precision. While a well-made aftermarket bumper can last just as long as OEM, pay attention to the warranty offered - reputable manufacturers typically provide at least a 1-year warranty on chrome finish and 3-5 years on structural integrity.

What tools and modifications are needed to install replacement parts?

Most bolt-on parts like bumpers, grilles, and headlight assemblies require basic hand tools including socket sets (typically 1/2" to 3/4"), wrenches, and a drill with metal bits for any minor adjustments. Common installation challenges include slight drilling to align mounting holes (especially on pre-2000 models) and adjusting bumper brackets for proper fitment. Professional installation typically takes 2-4 hours for major components like bumpers or hoods.

What's the difference between chrome, stainless steel, and painted finishes?

Chrome-plated steel offers the brightest mirror finish but requires regular polishing and can pit in harsh climates. Stainless steel (usually 304 grade) provides excellent corrosion resistance with less maintenance but has a slightly duller appearance. Painted finishes are the most economical and can be color-matched to your truck, but may need repainting every 5-7 years depending on exposure. For winter driOEMg or coastal areas, stainless steel typically offers the best long-term value.

How do I ensure proper fitment when ordering hoods, fenders, or bumpers?

Start by confirming your exact model year and checking whether you have a standard or extended hood configuration. Measure key mounting points on your current parts before ordering - bumper width should be either 18" or 20" depending on your model. For hoods and fenders, verify whether you have the single-headlight or dual-headlight configuration. When in doubt, provide your OEM number when ordering to ensure compatibility, as some mid-year production changes aren't reflected in standard model year listings.


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