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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.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • On Sale
    Limited Quantity Available
    Air Freshener- 16 Oz

    Air Freshener- 16 Oz

    AFTERMARKET

    $3.25 - $6.50
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksCotton Candy Air Freshener- 16 OzCotton Candy Air FreshenerEnjoy a burst of sweetness every time you...
    PPR_300351
    SKU:
    PPR_300351
    Product Type:
    Polishing
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $3.25 - $6.50
    Qty in Cart: 0
    Price:
    $3.25 - $6.50
    Subtotal:
  • On Sale
    Limited Quantity Available
    CSM 3 Inch Full Wrap Sleeper Panel For Peterbilt 300 Series

    CSM 3 Inch Full Wrap Sleeper Panel For Peterbilt 300 Series

    CHROME SHOP MAFIA

    $122.48 - $256.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 330 1995 thru 2005* Fits Peterbilt 335 2005 thru 2010* Fits Peterbilt 337 2011 thru 2022* Fits Peterbilt 352 1972 thru 1980* Fits Peterbilt...
    PPR_300336
    SKU:
    PPR_300336
    Product Type:
    Exterior
    Height Options:
    3 Inch
    Length Options:
    80 Inch
    Material Options:
    Stainless Steel
    Material Options:
    Aluminum
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    Location:
    Made In USA
    Style Options:
    Full Wrap
    $122.48 - $256.99
    Qty in Cart: 0
    Price:
    $122.48 - $256.99
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  • On Sale
    Limited Quantity Available
    Airway Buffing Wheel For Use On Aluminum

    Airway Buffing Wheel For Use On Aluminum

    AFTERMARKET

    $5.75 - $15.75
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks10 Inch Yellow Airway Buffing Wheel For Use On Aluminum10 Inch Yellow Airway Buffing WheelThe 10 Inch...
    PPR_300346
    SKU:
    PPR_300346
    Color:
    Orange
    Color:
    Yellow
    Product Type:
    Polishing
    Diameter Options:
    8 Inch
    Diameter Options:
    10 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Shape Options:
    Round
    $5.75 - $15.75
    Qty in Cart: 0
    Price:
    $5.75 - $15.75
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  • Chrome Plastic Axle Cover Kit W/ Top Hat Nut Covers

    Chrome Plastic Axle Cover Kit W/ Top Hat Nut Covers

    LIFETIME NUT COVERS

    $227.99 - $351.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksChrome Plastic Rear Axle Cover Kit W/ Top Hat Nut CoversRear Axle Cover Kit W/ Top Hat Nut CoversMake...
    PPR_300337
    SKU:
    PPR_300337
    Material Options:
    Plastic/Poly
    Finish Options:
    Chrome-Plated
    Product Type:
    Wheels
    Style Options:
    Top Hat
    Make:
    Universal Items
    Position:
    Kit Full
    $227.99 - $351.99
    Qty in Cart: 0
    Price:
    $227.99 - $351.99
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  • Smooth Aluminum Big Mouth Step Box

    Smooth Aluminum Big Mouth Step Box

    SOARING EAGLE

    $1,280.99 - $1,448.99
    Keep your essential equipment secure and accessible with the Smooth Aluminum Big Mouth Step Box, designed for durability and streamlined styling. Its smooth aluminum construction stands up to harsh...
    PPR_300342
    SKU:
    PPR_300342
    Product Type:
    Toolboxes
    Length Options:
    18 Inch
    Length Options:
    24 Inch
    Width Options:
    24 Inch
    Height Options:
    27 Inch
    Material Options:
    Aluminum
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Finish Options:
    Polished
    Style Options:
    Big Mouth Style
    Width Options:
    25 Inch
    $1,280.99 - $1,448.99
    Qty in Cart: 0
    Price:
    $1,280.99 - $1,448.99
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  • On Sale
    Limited Quantity Available
    Black Window Maxx Mount W/ 360 Degree Swivel

    Black Window Maxx Mount W/ 360 Degree Swivel

    AFTERMARKET

    $12.50 - $39.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBlack Window Mount For Standard Sized GPS Or Large Sized Smartphones W/ 360 Degree SwivelWindow Mount...
    PPR_300343
    SKU:
    PPR_300343
    Product Type:
    Interior
    Color:
    Black
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Degree Options:
    360
    $12.50 - $39.99
    Qty in Cart: 0
    Price:
    $12.50 - $39.99
    Subtotal:
  • Stainless Steel Rear Center Panel

    Stainless Steel Rear Center Panel

    ROADWORKS

    $134.99 - $266.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks8 Inch Stainless Steel Rear Center Panel W/ Stainless Steel Back Plate8 Inch Rear Center Panel W/...
    PPR_300338
    SKU:
    PPR_300338
    Height Options:
    14 Inch
    Shape Options:
    Rectangular
    Material Options:
    Stainless Steel
    Light Options:
    Without Lights
    Location:
    Made In USA
    Height Options:
    8 Inch
    Style Options:
    Angled
    Product Type:
    Bumpers
    Position:
    Center
    Make:
    Universal Items
    $134.99 - $266.99
    Qty in Cart: 0
    Price:
    $134.99 - $266.99
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  • 24 Inch Proflex Black Rubber Mud Flap W/ Ribbed Back - 3/8 Inch Thick

    24 Inch Proflex Black Rubber Mud Flap W/ Ribbed Back - 3/8 Inch Thick

    4 STATE TRUCKS

    $22.21
    Keep your truck protected from mud, rocks, and road debris with this mud flap. Constructed from high-quality rubber with a ribbed back for extra strength, this 3/8-inch thick mud flap resists...
    PPR_300339
    SKU:
    PPR_300339
    Material Options:
    Rubber
    Height Options:
    24 Inch
    Color:
    Black
    Width Options:
    24 Inch
    Product Type:
    Mud Flaps
    Make:
    Universal Items
    Height Options:
    30 Inch
    Length Options:
    3/8 Inch
    $22.21
    Qty in Cart: 0
    Price:
    $22.21
    Subtotal:
  • Chrome 2.5 Inch Bolt Pattern Spring Loaded Rear Light Bar W/ Six Incandescent Oval Light Cutouts

    Chrome 2.5 Inch Bolt Pattern Spring Loaded Rear Light Bar W/ Six Incandescent Oval Light Cutouts

    UNITED PACIFIC

    $171.99
    Chrome Plated Rear Light Bars W/ 6 Slanted Oval Light Cutouts* High Quality Light Bar* Made Of Chrome Plated* 2-1/2 Inch* Bolt Pattern* Spring Loaded* With (6) Slanted Up Oval Light Cutouts* Sold As...
    09-011000531
    SKU:
    09-011000531
    Finish Options:
    Chrome-Plated
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Product Type:
    Bumpers
    Position:
    Rear
    Make:
    Universal Items
    $171.99
    Qty in Cart: 0
    Price:
    $171.99
    Subtotal:
  • Airway Buffing Wheel With Center Plate

    Airway Buffing Wheel With Center Plate

    AFTERMARKET

    $15.75 - $17.57
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks9 Inch Yellow Airway Buffing Wheel9 Inch Yellow Airway Buffing Wheel With Center Plate* High Quality...
    PPR_300330
    SKU:
    PPR_300330
    Color:
    Orange
    Diameter Options:
    8 Inch
    Product Type:
    Polishing
    Diameter Options:
    9 Inch
    Color:
    Yellow
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $15.75 - $17.57
    Qty in Cart: 0
    Price:
    $15.75 - $17.57
    Subtotal:
  • Red Satin Airway Buffing Wheel

    Red Satin Airway Buffing Wheel

    AFTERMARKET

    $39.65 - $44.74
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks9 Inch Red Satin Airway Buffing Wheel9 Inch Red Satin Airway Buffing Wheel For Angled Grinder* High...
    PPR_300331
    SKU:
    PPR_300331
    Material Options:
    Cloth
    Diameter Options:
    10 Inch
    Color:
    Red
    Product Type:
    Polishing
    Diameter Options:
    9 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $39.65 - $44.74
    Qty in Cart: 0
    Price:
    $39.65 - $44.74
    Subtotal:
  • Air Freshener- 5 Gallon

    Air Freshener- 5 Gallon

    AFTERMARKET

    $103.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksLemon Bar Air Freshener- 5 GallonLemon Bar Air Freshener* High Quality Air Freshener* Lemon Bar Scent*...
    PPR_300333
    SKU:
    PPR_300333
    Capacity:
    5 Gallons
    Product Type:
    Polishing
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $103.99
    Qty in Cart: 0
    Price:
    $103.99
    Subtotal:
  • Fiberglass Whip Antenna W/ Color, Length & Quantity Options

    Fiberglass Whip Antenna W/ Color, Length & Quantity Options

    MIAMI STAR

    $11.21 - $24.47
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks3 Foot Fiberglass Whip Antenna - Regular - BlackBlack 3 Foot Fiberglass Whip Antenna* High Quality CB...
    PPR_300327
    SKU:
    PPR_300327
    Material Options:
    Fiberglass
    Color:
    Black
    Color:
    White
    Color:
    Red
    Color:
    Blue
    Length Options:
    36 Inch
    Product Type:
    Electronics
    Length Options:
    48 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $11.21 - $24.47
    Qty in Cart: 0
    Price:
    $11.21 - $24.47
    Subtotal:
  • 10 Inch Buffing Compound Bar

    10 Inch Buffing Compound Bar

    AFTERMARKET

    $14.27 - $19.37
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks10 Inch Buffing Compound Bar- GreenGreen Compound Bar* High Quality Compound Bar* Metal Polishing...
    PPR_300329
    SKU:
    PPR_300329
    Length Options:
    10 Inch
    Color:
    Green
    Color:
    Brown
    Color:
    Purple
    Product Type:
    Polishing
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $14.27 - $19.37
    Qty in Cart: 0
    Price:
    $14.27 - $19.37
    Subtotal:
  • 2 Inch Low Profile Spyder Marker Light

    2 Inch Low Profile Spyder Marker Light

    GRAND GENERAL

    $14.23
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks2 Inch Low Profile Spyder Marker Light- Amber/ Clear2 Inch Low Profile Spyder Marker Light- Amber/...
    PPR_300323
    SKU:
    PPR_300323
    Color:
    Amber/Clear
    Diameter Options:
    2 Inch
    Color:
    Red/White
    Length Options:
    1/2 Inch
    Height Options:
    1/2 Inch
    Product Type:
    Lighting
    Material Options:
    Plastic/Poly
    Style Options:
    2 Prong
    Shape Options:
    Round
    Style Options:
    Spyder Style
    Make:
    Universal Items
    $14.23
    Qty in Cart: 0
    Price:
    $14.23
    Subtotal:
  • Front Fender Chrome Plated Aluminum Bracket For Peterbilt 379

    Front Fender Chrome Plated Aluminum Bracket For Peterbilt 379

    MIAMI STAR

    $183.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 379 1987 thru 2007Front Fender Chrome Plated Aluminum Bracket - Driver Side For Peterbilt 379Aluminum Chrome Bracket For Front Fender* High...
    PPR_300325
    SKU:
    PPR_300325
    Material Options:
    Aluminum
    Position:
    Front
    Position:
    Passenger Side
    Material Options:
    Stainless Steel
    Finish Options:
    Chrome-Plated
    Product Type:
    Hood Parts & Acc.
    Position:
    Driver Side
    Make:
    Peterbilt
    Make:
    Freightliner
    Ready To Ship:
    Yes
    $183.99
    Qty in Cart: 0
    Price:
    $183.99
    Subtotal:
  • 33 MM Stainless Steel Lug Nut Cover W/ Flange

    33 MM Stainless Steel Lug Nut Cover W/ Flange

    REALWHEELS

    $2.90 - $4.84
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks33 MM Stainless Steel Lug Nut Cover W/ Flange33 MM X 2-9/16 Inch Stainless Steel Flange Nut Cover* High...
    PPR_300314
    SKU:
    PPR_300314
    Height Options:
    2 1/2 Inch
    Height Options:
    2 Inch
    Product Type:
    Wheels
    Finish Options:
    Polished
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $2.90 - $4.84
    Qty in Cart: 0
    Price:
    $2.90 - $4.84
    Subtotal:
  • Stainless Steel Fender Mounting Bracket For Peterbilt

    Stainless Steel Fender Mounting Bracket For Peterbilt

    AFTERMARKET

    $353.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 379 1987 thru 2007* Fits Peterbilt 389 Glider 2008 thru 2023* Fits Peterbilt 389 2008 thru 2023* Fits Peterbilt 567 2014 thru Current* Fits...
    PPR_300315
    SKU:
    PPR_300315
    Finish Options:
    Polished
    Position:
    Driver Side
    Position:
    Passenger Side
    Material Options:
    Stainless Steel
    Size Options:
    14 Gauge
    Product Type:
    Rear Fenders
    Make:
    Peterbilt
    $353.99
    Qty in Cart: 0
    Price:
    $353.99
    Subtotal:
  • I-29 Flex Air Suspension Rear And Center Blind Mount Bracket

    I-29 Flex Air Suspension Rear And Center Blind Mount Bracket

    AFTERMARKET

    $305.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksI-29 Flex Air Suspension Rear And Center Blind Mount BracketRear Bracket For Half Fender Kits And...
    PPR_300310
    SKU:
    PPR_300310
    Location:
    Made In USA
    Material Options:
    Steel
    Product Type:
    Rear Fenders
    Position:
    Passenger Side
    Position:
    Driver Side
    Make:
    Peterbilt
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $305.99
    Qty in Cart: 0
    Price:
    $305.99
    Subtotal:
  • BESTfit 7 X 16 Inch Stainless Steel Dual Vision West Coast Mirror

    BESTfit 7 X 16 Inch Stainless Steel Dual Vision West Coast Mirror

    BESTFIT TRUCK PARTS

    $48.90 - $56.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBESTfit 7 X 16 Inch Stainless Steel West Coast Mirror- Single Flat Glass & Heated7 X 16 Inch West Coast...
    PPR_300311
    SKU:
    PPR_300311
    Product Type:
    Exterior
    Material Options:
    Stainless Steel
    Type Options:
    Heated
    Style Options:
    West Coast Style
    Width Options:
    7 Inch
    Height Options:
    16 Inch
    Type Options:
    Stud Mount
    Make:
    Universal Items
    $48.90 - $56.99
    Qty in Cart: 0
    Price:
    $48.90 - $56.99
    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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