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Peterbilt 379 Parts

At 4 State Trucks, you’ll find everything you need to keep your iconic 379 model running strong and looking sharp. From bumpers and exhausts to fuel tanks, fenders, and chrome trim, we’ve got Peterbilt accessories and parts designed to fit your specific model year (87’ – 07’). Whether it’s a full-body restoration, a small component replacement, or a custom upgrade, our lineup has what you need.

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  • Qty in Cart
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  • Price
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  • Minimizer Slick Plate 33 X 36 X 18.25 For Simplex II Models Fifth Wheels

    Minimizer Slick Plate 33 X 36 X 18.25 For Simplex II Models Fifth Wheels

    MINIMIZER

    $395.99
    5th Wheel Slick Plate Simplex Model II to Protect the 5th Wheel PlateThe Minimizer Slick Plate is designed for Simplex II Fifth Wheels. It measures 36.3 inches in width and 32.8 inches in height. The...
    09-051100921
    SKU:
    09-051100921
    Product Type:
    Frame & Chassis
    Height Options:
    32 Inch
    Width Options:
    36 Inch
    Make:
    Universal Items
    $395.99
    Qty in Cart: 0
    Price:
    $395.99
    Subtotal:
  • 6 X 48 Inch Stainless Steel Sleeper Wrap With Tank Notch For Peterbilt 379

    6 X 48 Inch Stainless Steel Sleeper Wrap With Tank Notch For Peterbilt 379

    ARANDA TRUCK ACCESSORIES

    $335.99
    48 Inch Stainless Steel Sleeper Wrap With Tank NotchThis high-quality sleeper wrap is constructed from 18 gauge stainless steel and includes a clean tank notch for proper fitment. Designed for 48...
    01-101200730
    SKU:
    01-101200730
    Product Type:
    Exterior
    Length Options:
    48 Inch
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Height Options:
    6 Inch
    Size Options:
    18 Gauge
    $335.99
    Qty in Cart: 0
    Price:
    $335.99
    Subtotal:
  • 8 X 5 Inch Chop Top Bowtie 70 Inch Sleeper Window For Peterbilt 579

    8 X 5 Inch Chop Top Bowtie 70 Inch Sleeper Window For Peterbilt 579

    ARANDA TRUCK ACCESSORIES

    $157.99
    Peterbilt Bow Tie Chopped Sleeper Window TrimThis high-quality sleeper window chop top is made from 22 gauge stainless steel and features a stylish bow tie design for a custom look. It measures 8...
    01-101007
    SKU:
    01-101007
    Height Options:
    8 Inch
    Length Options:
    5 Inch
    Product Type:
    Exterior
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Size Options:
    22 Gauge
    Style Options:
    Bow Tie
    Width Options:
    70 Inch
    Make:
    Peterbilt
    $157.99
    Qty in Cart: 0
    Price:
    $157.99
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  • Paintable Sleeper Window Surround Trim For Peterbilt 70 Inch Sleeper

    Paintable Sleeper Window Surround Trim For Peterbilt 70 Inch Sleeper

    ARANDA TRUCK ACCESSORIES

    $225.99
    Peterbilt 70 Inch Sleeper Window TrimThis high-quality sleeper window trim is crafted from steel with a Paintlok finish, providing excellent corrosion resistance while also making the surface fully...
    01-1010003
    SKU:
    01-1010003
    Product Type:
    Exterior
    Finish Options:
    Paintable
    Length Options:
    70 Inch
    Location:
    Made In USA
    Make:
    Peterbilt
    Material Options:
    Stainless Steel
    $225.99
    Qty in Cart: 0
    Price:
    $225.99
    Subtotal:
  • 8 Inch Cab Panel With Integrated Hood Extension For Peterbilt 300 Series

    8 Inch Cab Panel With Integrated Hood Extension For Peterbilt 300 Series

    ARANDA TRUCK ACCESSORIES

    $645.99
    Peterbilt Cab Panel With Integrated Hood ExtensionThis high-quality cab panel is crafted from stainless steel and measures 8 inch in height. It includes an integrated hood extension for a seamless,...
    01-091201428
    SKU:
    01-091201428
    Product Type:
    Exterior
    Height Options:
    8 Inch
    Location:
    Made In USA
    Make:
    Peterbilt
    Material Options:
    Stainless Steel
    $645.99
    Qty in Cart: 0
    Price:
    $645.99
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  • 7 - 5 inch Rear Bowtie Window Visor For Peterbilt 379

    7 - 5 inch Rear Bowtie Window Visor For Peterbilt 379

    ARANDA TRUCK ACCESSORIES

    $247.99
    Peterbilt 379 Rear Window Bowtie VisorElevate your Peterbilt 379's style and functionality with this 7.5 Inch Rear Bowtie Window Visor, proudly made in the USA. This visor offers superior sun...
    01-090400002
    SKU:
    01-090400002
    Product Type:
    Exterior
    Location:
    Made In USA
    Make:
    Peterbilt
    Material Options:
    Stainless Steel
    $247.99
    Qty in Cart: 0
    Price:
    $247.99
    Subtotal:
  • 16 X 14 Inch v Style Drop Visor For Peterbilt 379

    16 X 14 Inch v Style Drop Visor For Peterbilt 379

    ARANDA TRUCK ACCESSORIES

    $656.99
    16 X 14 Inch v Style Drop Visor Fits Peterbilt 379Designed for Peterbilt 379 models from 1987 to 2007, this 14 x 16-inch V-style visor delivers a perfect combination of rugged durability and classic...
    01-09000047
    SKU:
    01-09000047
    Product Type:
    Exterior
    Width Options:
    16 Inch
    Height Options:
    14 Inch
    Location:
    Made In USA
    Make:
    Peterbilt
    Material Options:
    Stainless Steel
    Style Options:
    V Style
    $656.99
    Qty in Cart: 0
    Price:
    $656.99
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  • Stainless Steel View Window Trim Ring For Peterbilt

    Stainless Steel View Window Trim Ring For Peterbilt

    ROADWORKS

    $47.70
    Peterbilt Interior View Window Trim Ring* High Quality Trim* For View Window * Made In USA* Sold Individually* Warranty On Trims Against Defects In Workmanship & Material From Date Of Purchase***...
    RW32937
    SKU:
    RW32937
    Product Type:
    Interior
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    $47.70
    Qty in Cart: 0
    Price:
    $47.70
    Subtotal:
  • Stainless Steel Lower Heater Panel And Door Trim - 2 Piece For Peterbilt

    Stainless Steel Lower Heater Panel And Door Trim - 2 Piece For Peterbilt

    ROADWORKS

    $96.99
    Peterbilt Interior Lower Heater Panel And Door Trim* High Quality Trim* For Lower Heater Panel & Door* Made In USA* Sold Individually* Warranty On Trims Against Defects In Workmanship & Material From...
    RW32947-02
    SKU:
    RW32947-02
    Product Type:
    Interior
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Make:
    Peterbilt
    $96.99
    Qty in Cart: 0
    Price:
    $96.99
    Subtotal:
  • Sleeper Light And Switch Trim For Peterbilt 377, 378, 379

    Sleeper Light And Switch Trim For Peterbilt 377, 378, 379

    ROADWORKS

    $40.49
    Peterbilt 379 Interior Trim For Sleeper Light And Switch* High Quality Trim* For Sleeper Light And Trim* Sold As Pair* Warranty On Trims Against Defects In Workmanship & Material From Date Of...
    RW32929
    SKU:
    RW32929
    Product Type:
    Interior
    Make:
    Peterbilt
    $40.49
    Qty in Cart: 0
    Price:
    $40.49
    Subtotal:
  • On Sale
    Limited Quantity Available
    Stainless Steel U Shaped Front Flap Accent Trim

    Stainless Steel U Shaped Front Flap Accent Trim

    ROADWORKS

    $22.96 - $53.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks23 Inch SS U Shaped Front Flap Accent TrimStainless Steel U Shaped Mud Flap Trim* High Quality Flap...
    PPR_299262
    SKU:
    PPR_299262
    Material Options:
    Stainless Steel
    Product Type:
    Mud Flaps
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Width Options:
    10 Inch
    Width Options:
    14 Inch
    Width Options:
    11 Inch
    Size Options:
    14 Gauge
    Width Options:
    23 Inch
    Width Options:
    16 Inch
    Width Options:
    13 Inch
    Width Options:
    24 Inch
    Width Options:
    20 Inch
    Location:
    Made In USA
    Width Options:
    12 Inch
    Width Options:
    18 Inch
    Width Options:
    8 Inch
    $22.96 - $53.99
    Qty in Cart: 0
    Price:
    $22.96 - $53.99
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  • Roadworks Stainless Steel Eagle Shield Truck Accents

    Roadworks Stainless Steel Eagle Shield Truck Accents

    ROADWORKS

    $18.90 - $37.33
    Choose Option(s) to see description.7 X 4.5 Inch Eagle Shield CutoutStainless Steel Eagle Shield Truck Accents* High Quality Sign* Stainless Steel* 7 Inch X 4.5 Inch* Eagle Shield* Made In USA* Sold...
    PPR_299258
    SKU:
    PPR_299258
    Product Type:
    Exterior
    Height Options:
    13 Inch
    Material Options:
    Stainless Steel
    Height Options:
    11 Inch
    Width Options:
    8 1/2 Inch
    Height Options:
    7 Inch
    Location:
    Made In USA
    Width Options:
    4 1/2 Inch
    Width Options:
    7 Inch
    Height Options:
    9 Inch
    Width Options:
    6 Inch
    Make:
    Universal Items
    $18.90 - $37.33
    Qty in Cart: 0
    Price:
    $18.90 - $37.33
    Subtotal:
  • Roadworks Stainless Steel Accent Strip Tape Mount

    Roadworks Stainless Steel Accent Strip Tape Mount

    ROADWORKS

    $4.48 - $18.90
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks8 Inch Stainless Steel Accent Strip Tape MountRoadworks Stainless Steel Accent Strip* High Quality...
    PPR_299254
    SKU:
    PPR_299254
    Product Type:
    Exterior
    Length Options:
    18 Inch
    Length Options:
    12 Inch
    Length Options:
    8 Inch
    Length Options:
    36 Inch
    Length Options:
    24 Inch
    Width Options:
    10 Inch
    Location:
    Made In USA
    Length Options:
    30 Inch
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $4.48 - $18.90
    Qty in Cart: 0
    Price:
    $4.48 - $18.90
    Subtotal:
  • Stainless Steel Louvered Top Flap Accent Trims

    Stainless Steel Louvered Top Flap Accent Trims

    ROADWORKS

    $39.40 - $79.99
    The stainless steel Front Flap Accent Trim with louvers is designed to mount securely to frame rails and comes with all necessary hardware for easy installation. This functional accessory enhances...
    PPR_299250
    SKU:
    PPR_299250
    Product Type:
    Mud Flaps
    Style Options:
    Louvered
    Width Options:
    12 Inch
    Width Options:
    20 Inch
    Width Options:
    14 Inch
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Width Options:
    16 Inch
    Make:
    Universal Items
    $39.40 - $79.99
    Qty in Cart: 0
    Price:
    $39.40 - $79.99
    Subtotal:
  • Stainless Steel Solid Mount Permit Panels

    Stainless Steel Solid Mount Permit Panels

    ROADWORKS

    $15.80 - $23.27
    These solid mount panels are made from a single piece of 18-gauge, hi-polished stainless steel. Each panel is strong, stylish, and features a 90-degree bend for easy mounting under your cab.Fitment**...
    PPR_299246
    SKU:
    PPR_299246
    Product Type:
    Exterior
    Height Options:
    4 Inch
    Height Options:
    5 Inch
    Width Options:
    12 Inch
    Width Options:
    18 Inch
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Type Options:
    Solid Mount
    $15.80 - $23.27
    Qty in Cart: 0
    Price:
    $15.80 - $23.27
    Subtotal:
  • FREE SHIPPING
    Courtesy Red White And Blue Graphic T-Shirt

    Courtesy Red White And Blue Graphic T-Shirt

    CHROME SHOP MAFIA

    $28.59 - $38.49
    Choose Option(s) to see description.Courtesy Red White And Blue T-Shirt - 2XLCourtesy Rwb T-Shirt - 2X-Large Short Sleeve* High Quality T-Shirt* 2X-Large* Short Sleeve* Courtesy Red White And Blue...
    PPR_299267
    SKU:
    PPR_299267
    Size Options:
    2 XL
    Size Options:
    XLarge
    Material Options:
    Cotton
    Product Type:
    Apparel
    Color:
    Black
    Size Options:
    Large
    Size Options:
    Med
    Size Options:
    3 XL
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $28.59 - $38.49
    Qty in Cart: 0
    Price:
    $28.59 - $38.49
    Subtotal:
  • Single Connector Air Line Boxes

    Single Connector Air Line Boxes

    ROADWORKS

    $395.99 - $759.99
    Hide your unsightly trailer harness connectors with one of these polished stainless steel air line boxes. Each features pre-drilled holes for a single connection hook up. Choose the light options...
    PPR_299261
    SKU:
    PPR_299261
    Product Type:
    Frame & Chassis
    Light Options:
    With Lights
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Color:
    Blue
    Color:
    Red
    Light Options:
    Without Lights
    $395.99 - $759.99
    Qty in Cart: 0
    Price:
    $395.99 - $759.99
    Subtotal:
  • Stainless Steel Eagle Accent Truck Signs

    Stainless Steel Eagle Accent Truck Signs

    ROADWORKS

    $51.99 - $101.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of TrucksSS Eagle Accent Sign - Left Facing17.5 X 9 Inch 18 Gauge SS Eagle Cutout Sign* High Quality Sign*...
    PPR_299257
    SKU:
    PPR_299257
    Product Type:
    Hood Parts & Acc.
    Height Options:
    9 Inch
    Length Options:
    17 1/2 Inch
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $51.99 - $101.99
    Qty in Cart: 0
    Price:
    $51.99 - $101.99
    Subtotal:
  • Roadworks Stainless Steel Waving American Flag Accent Truck Signs

    Roadworks Stainless Steel Waving American Flag Accent Truck Signs

    ROADWORKS

    $32.14 - $64.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks12 X 8 Inch SS Waving American Flag AccentStainless Steel Waving American Flag Truck Sign* High Quality...
    PPR_299260
    SKU:
    PPR_299260
    Product Type:
    Exterior
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Height Options:
    11 Inch
    Width Options:
    12 Inch
    Width Options:
    17 Inch
    Height Options:
    8 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $32.14 - $64.99
    Qty in Cart: 0
    Price:
    $32.14 - $64.99
    Subtotal:
  • Stainless Steel Front Mud Flap Accent Trims

    Stainless Steel Front Mud Flap Accent Trims

    ROADWORKS

    $27.99 - $30.07
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks8 Inch SS Front Mud Flap Accent TrimBlank Front Flap Accents By Roadworks* High Quality Flap Accent...
    PPR_299249
    SKU:
    PPR_299249
    Product Type:
    Mud Flaps
    Width Options:
    10 Inch
    Width Options:
    8 Inch
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $27.99 - $30.07
    Qty in Cart: 0
    Price:
    $27.99 - $30.07
    Subtotal:
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Adding your products to cart

Shop for Repair & Performance Parts for the Peterbilt 379

We stock aftermarket parts from top-tier brands, each engineered to meet or exceed classic OEM Peterbilt 379 parts for both newer and older 379 model years. Replacement parts reduce downtime and can enhance the efficiency of your big rig. Easily swap out worn-out or broken mechanical components: - Turbochargers and exhaust manifolds. - Radiators, heater hoses, and electrical components. -Peterbilt 379 front shocks, air-ride suspension hardware and drivetrain or powertrain replacements. Installing high-quality aftermarket performance upgrades can lead to a positive ROI and stronger performance. Whether your Peterbilt needs an exhaust system upgrade or an extensive suspension rebuild, we've got the parts to get the job done.

Add Polished Chrome Upgrades

Elevate your truck's look with exterior chrome parts: stainless steel visors, grilles, rear fenders, and front bumpers for Peterbilt 379. Add larger Peterbilt diesel fuel storage tanks and a new set of Peterbilt 379 chrome stack tops.

Customize the Interior with Peterbilt 379 Accessories

Our Peterbilt 379 interior accessories let you mix and match designs to fit your truck's theme. For decades, we've helped source parts for drivers to build their custom show trucks. Customizing the interior? If you can dream it, there's likely a product to help you build it. Browse through dash trims, upholstery, dual-tone interior cab lights, vent trim covers, custom foot pedals, and more. Interior accessories help to customize the entirety of your rig. You can add unique rear sleeper window shapes, chrome-polished mirror accessories, cabin doors, and in-cab vinyl flooring kits. When it comes to fine-tuning your custom interior, there are endless options. Filter through a vast selection of products via the materials, design features, sizes, and aftermarket brands that truckers trust. At the bottom of the page, you can review the item details, check for product specs, search for limited-time discounts on popular items, and add the order to cart. Easy.

Frequently Asked Questions About Peterbilt 379 Parts

What years are Peterbilt 379 parts compatible with, and will they fit my specific model?

Most Peterbilt 379 parts fit 1987–2007 trucks, but fitment depends on the exact part and your setup (standard vs extended hood, trim packages, modifications). Always confirm OEM specs and model details before ordering. For custom builds, contact support with your truck info.

What's the difference between aftermarket and OEM Peterbilt 379 parts in terms of quality and durability?

OEM parts match factory specs and usually cost more. Quality aftermarket parts can perform similarly for 30–50% less, especially for chrome and accessories. Look for strong materials (ex: 16-gauge+ bumpers), good plating/finishing, and a warranty—avoid ultra-cheap parts that rust or peel quickly.

How difficult is it to install Peterbilt 379 bumpers and what tools do I need?

Most installs take 2–4 hours with basic tools: socket set (especially 3/4" and 7/8"), torque wrench, jack stands/lift, and ideally a helper. Many bumpers use factory mounts; some may need minor drilling. Rusted hardware and alignment are the usual challenges. Pro install is often $200–$400.

What chrome and finish options are available for Peterbilt 379 parts, and how do they hold up?

Triple chrome: best shine, needs regular upkeep (especially in winter). Powder coat: tough and chip-resistant, less mirror-like. Polished stainless: higher upfront cost, won’t rust, low maintenance. Choose based on climate and how much maintenance you want to do.

Which Peterbilt 379 parts should I prioritize replacing for both appearance and functionality?

Start with safety items (headlights/marker lights). Next, replace rust-prone parts like bumpers, battery boxes, and step plates. Then move to high-impact upgrades like air cleaners and exhaust. Interior items (dash panels, handles) improve daily comfort. Prices can vary. Budget $2,000-5,000 for a comprehensive exterior refresh, or tackle projects individually starting with the most visible or damaged components.


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