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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
  • Roadworks 304 Stainless Steel Breather Screen Chopped W/ Cutout Options For Peterbilt W/ 15 Inch Premium Donaldson

    Roadworks 304 Stainless Steel Breather Screen Chopped W/ Cutout Options For Peterbilt W/ 15 Inch Premium Donaldson

    ROADWORKS

    $478.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 330 1995 thru 2005* Fits Peterbilt 335 2005 thru 2010* Fits Peterbilt 337 2011 thru 2023* Fits Peterbilt 352 1972 thru 1980* Fits Peterbilt...
    PPR_301363
    SKU:
    PPR_301363
    Truck Class:
    Heavy Duty
    Finish Options:
    Polished
    Location:
    Made In USA
    Style Options:
    Donaldson Style
    Material Options:
    Stainless Steel
    Diameter Options:
    15 Inch
    Product Type:
    Exterior
    Make:
    Kenworth
    Make:
    Peterbilt
    $478.99
    Qty in Cart: 0
    Price:
    $478.99
    Subtotal:
  • Roadworks Stainless Steel Channel W/ Round Light Hole & Length Options

    Roadworks Stainless Steel Channel W/ Round Light Hole & Length Options

    ROADWORKS

    $10.08 - $190.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksRoadworks 4 Inch Stainless Steel Channel W/ 1 Round 2 Inch Light Holes4 Inch Stainless Steel Channel W/...
    PPR_301350
    SKU:
    PPR_301350
    Length Options:
    32 Inch
    Length Options:
    94 Inch
    Height Options:
    4 Inch
    Product Type:
    Lighting
    Length Options:
    4 Inch
    Light Options:
    Without Lights
    Length Options:
    24 Inch
    Length Options:
    16 Inch
    Length Options:
    86 Inch
    Length Options:
    8 Inch
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Make:
    Universal Items
    $10.08 - $190.99
    Qty in Cart: 0
    Price:
    $10.08 - $190.99
    Subtotal:
  • Roadworks Stainless Steel Channel W/ Bullet Plug, Supernova Light Hole & Length Options

    Roadworks Stainless Steel Channel W/ Bullet Plug, Supernova Light Hole & Length Options

    ROADWORKS

    $31.60 - $148.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksRoadworks 18 Inch Stainless Steel Channel W/ 2 Supernova Light Holes & Bullet Plugs18 Inch Stainless...
    PPR_301349
    SKU:
    PPR_301349
    Length Options:
    18 Inch
    Length Options:
    60 Inch
    Light Options:
    Without Lights
    Length Options:
    30 Inch
    Style Options:
    Supernova
    Length Options:
    86 Inch
    Location:
    Made In USA
    Height Options:
    3 1/2 Inch
    Length Options:
    36 Inch
    Length Options:
    42 Inch
    Length Options:
    88 Inch
    Length Options:
    94 Inch
    Product Type:
    Lighting
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $31.60 - $148.99
    Qty in Cart: 0
    Price:
    $31.60 - $148.99
    Subtotal:
  • Roadworks 304 Stainless Steel Breather Screen Factory Height W/ Cutout Shape Options For Peterbilt W/ 15 Inch Standard Donaldson

    Roadworks 304 Stainless Steel Breather Screen Factory Height W/ Cutout Shape Options For Peterbilt W/ 15 Inch Standard Donaldson

    ROADWORKS

    $502.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 330 1995 thru 2005* Fits Peterbilt 335 2005 thru 2010* Fits Peterbilt 337 2011 thru 2023* Fits Peterbilt 352 1972 thru 1980* Fits Peterbilt...
    PPR_301359
    SKU:
    PPR_301359
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Diameter Options:
    15 Inch
    Style Options:
    Donaldson Style
    Product Type:
    Exterior
    Make:
    Peterbilt
    Make:
    Kenworth
    $502.99
    Qty in Cart: 0
    Price:
    $502.99
    Subtotal:
  • Roadworks Stainless Steel License Plate Holder Gullwing Style W/ Supernova Horizontal Light Hole, Plate Quantity & Width Options

    Roadworks Stainless Steel License Plate Holder Gullwing Style W/ Supernova Horizontal Light Hole, Plate Quantity & Width Options

    ROADWORKS

    $36.53 - $230.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksRoadworks 13.5 Inch Stainless Steel License Plate Holder Gull Wing Style W/ Supernova Horizontal Light...
    PPR_301346
    SKU:
    PPR_301346
    Product Type:
    Bumpers
    Width Options:
    56 Inch
    Light Options:
    Without Lights
    Style Options:
    Gullwing
    Material Options:
    Stainless Steel
    Width Options:
    27 1/2 Inch
    Location:
    Made In USA
    Width Options:
    13 1/2 Inch
    Make:
    Universal Items
    $36.53 - $230.99
    Qty in Cart: 0
    Price:
    $36.53 - $230.99
    Subtotal:
  • Roadworks 94 X 4 Inch Stainless Steel Full Bumper Bar W/ Oval Light Hole Options

    Roadworks 94 X 4 Inch Stainless Steel Full Bumper Bar W/ Oval Light Hole Options

    ROADWORKS

    $161.99 - $178.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksRoadworks 94 X 4 Inch Stainless Steel Full Bumper Bar W/ 5 Oval Light Holes94 X 4 Inch Stainless Steel...
    PPR_301355
    SKU:
    PPR_301355
    Length Options:
    94 Inch
    Product Type:
    Bumpers
    Width Options:
    94 Inch
    Light Options:
    Without Lights
    Height Options:
    4 Inch
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Make:
    Universal Items
    $161.99 - $178.99
    Qty in Cart: 0
    Price:
    $161.99 - $178.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Roadworks 304 Stainless Steel 15 Inch Vortox Breather Screen W/ Cutout Options For Peterbilt

    Roadworks 304 Stainless Steel 15 Inch Vortox Breather Screen W/ Cutout Options For Peterbilt

    ROADWORKS

    $124.89 - $383.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 330 1995 thru 2005* Fits Peterbilt 335 2005 thru 2010* Fits Peterbilt 337 2011 thru 2023* Fits Peterbilt 352 1972 thru 1980* Fits Peterbilt...
    PPR_301364
    SKU:
    PPR_301364
    Material Options:
    Stainless Steel
    Product Type:
    Exterior
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Diameter Options:
    15 Inch
    Style Options:
    Donaldson Style
    Make:
    Peterbilt
    Make:
    Kenworth
    Ready To Ship:
    Yes
    $124.89 - $383.99
    Qty in Cart: 0
    Price:
    $124.89 - $383.99
    Subtotal:
  • Roadworks Stainless Steel Channel W/ Length & Rectangular Light Hole Options

    Roadworks Stainless Steel Channel W/ Length & Rectangular Light Hole Options

    ROADWORKS

    $22.73 - $41.48
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksRoadworks 8 Inch Stainless Steel Channel W/ 1 Rectangular Light Hole8 Inch Stainless Steel Channel W/ 1...
    PPR_301351
    SKU:
    PPR_301351
    Light Options:
    Without Lights
    Height Options:
    6 Inch
    Location:
    Made In USA
    Length Options:
    8 Inch
    Product Type:
    Lighting
    Length Options:
    16 Inch
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $22.73 - $41.48
    Qty in Cart: 0
    Price:
    $22.73 - $41.48
    Subtotal:
  • Roadworks 304 Stainless Steel Punched Breather Screen Chopped W/ Cutout Options For Peterbilt W/ 15 Inch Standard Donaldson

    Roadworks 304 Stainless Steel Punched Breather Screen Chopped W/ Cutout Options For Peterbilt W/ 15 Inch Standard Donaldson

    ROADWORKS

    $397.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 330 1995 thru 2005* Fits Peterbilt 335 2005 thru 2010* Fits Peterbilt 337 2011 thru 2023* Fits Peterbilt 352 1972 thru 1980* Fits Peterbilt...
    PPR_301360
    SKU:
    PPR_301360
    Product Type:
    Exterior
    Diameter Options:
    15 Inch
    Style Options:
    Donaldson Style
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Make:
    Kenworth
    $397.99
    Qty in Cart: 0
    Price:
    $397.99
    Subtotal:
  • Roadworks Stainless Steel Channel W/ Light Hole & Length Options

    Roadworks Stainless Steel Channel W/ Light Hole & Length Options

    ROADWORKS

    $7.11 - $138.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksRoadworks 3.5 Inch Stainless Steel Channel W/ Round 2 Inch Light Hole3.5 Inch Stainless Steel Channel...
    PPR_301347
    SKU:
    PPR_301347
    Length Options:
    30 Inch
    Length Options:
    60 Inch
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Height Options:
    3 1/2 Inch
    Length Options:
    36 Inch
    Length Options:
    3 1/2 Inch
    Length Options:
    86 Inch
    Length Options:
    6 3/4 Inch
    Length Options:
    18 Inch
    Light Options:
    Without Lights
    Length Options:
    42 Inch
    Length Options:
    88 Inch
    Product Type:
    Lighting
    Make:
    Universal Items
    $7.11 - $138.99
    Qty in Cart: 0
    Price:
    $7.11 - $138.99
    Subtotal:
  • Roadworks Stainless Steel Channel W/ Contoured Bar, Length & Oval Light Hole Options

    Roadworks Stainless Steel Channel W/ Contoured Bar, Length & Oval Light Hole Options

    ROADWORKS

    $15.72 - $72.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksRoadworks 8.25 Inch Stainless Steel Channel W/ Contoured Bar & 1 Oval Light Hole8.25 Inch Stainless...
    PPR_301356
    SKU:
    PPR_301356
    Length Options:
    24 1/2 Inch
    Location:
    Made In USA
    Length Options:
    48 Inch
    Material Options:
    Stainless Steel
    Length Options:
    16 1/2 Inch
    Height Options:
    4 Inch
    Light Options:
    Without Lights
    Length Options:
    8 1/4 Inch
    Product Type:
    Lighting
    Make:
    Universal Items
    $15.72 - $72.99
    Qty in Cart: 0
    Price:
    $15.72 - $72.99
    Subtotal:
  • Roadworks Stainless Steel Channel W/ Length & Round Light Hole Options

    Roadworks Stainless Steel Channel W/ Length & Round Light Hole Options

    ROADWORKS

    $20.07 - $36.54
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksRoadworks 6.5 Inch Stainless Steel Channel W/ 1 Round 4 inch Light Hole6.5 Inch Stainless Steel Channel...
    PPR_301352
    SKU:
    PPR_301352
    Height Options:
    6 1/2 Inch
    Location:
    Made In USA
    Length Options:
    13 Inch
    Material Options:
    Stainless Steel
    Product Type:
    Lighting
    Light Options:
    Without Lights
    Length Options:
    6 1/2 Inch
    Make:
    Universal Items
    $20.07 - $36.54
    Qty in Cart: 0
    Price:
    $20.07 - $36.54
    Subtotal:
  • Roadwork Stainless Steel Channel W/ Supernova Light Hole & Length Options

    Roadwork Stainless Steel Channel W/ Supernova Light Hole & Length Options

    ROADWORKS

    $13.84 - $135.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksRoadworks 6.75 Inch Stainless Steel Channel W/ Supernova Light Hole6.75 Inch Stainless Steel Channel W/...
    PPR_301348
    SKU:
    PPR_301348
    Length Options:
    18 Inch
    Length Options:
    60 Inch
    Length Options:
    30 Inch
    Material Options:
    Stainless Steel
    Length Options:
    94 Inch
    Product Type:
    Lighting
    Style Options:
    Supernova
    Height Options:
    3 1/2 Inch
    Length Options:
    36 Inch
    Length Options:
    6 3/4 Inch
    Light Options:
    Without Lights
    Location:
    Made In USA
    Make:
    Universal Items
    $13.84 - $135.99
    Qty in Cart: 0
    Price:
    $13.84 - $135.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Multi Color Function Rigid Strip W/ 7 Selectable Colors & Length Options

    Multi Color Function Rigid Strip W/ 7 Selectable Colors & Length Options

    MAXXIMA

    $61.99 - $117.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksMulti Color Function Rigid Strip 12 Inch W/ 7 Selectable Colors & 33 LEDs12 Inch Multi Color Function...
    PPR_301232
    SKU:
    PPR_301232
    Height Options:
    114 Inch
    Product Type:
    Lighting
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $61.99 - $117.99
    Qty in Cart: 0
    Price:
    $61.99 - $117.99
    Subtotal:
  • Stainless Steel 30 Inch Mud Flap Hanger Spring Loaded W/ Optional Bolt Spacing

    Stainless Steel 30 Inch Mud Flap Hanger Spring Loaded W/ Optional Bolt Spacing

    TRUX ACCESSORIES

    $127.99 - $163.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks & TrailersStainless Steel Mud Flap Hangers 30 X 5.5 Inch W/ 1.125 Inch Bolt SpacingMud Flap Hangers 30...
    PPR_301248
    SKU:
    PPR_301248
    Finish Options:
    Mirror
    Material Options:
    Stainless Steel
    Product Type:
    Mud Flaps
    Width Options:
    30 Inch
    Make:
    Universal Items
    $127.99 - $163.99
    Qty in Cart: 0
    Price:
    $127.99 - $163.99
    Subtotal:
  • Hogebuilt Stainless Steel Quarter Fender Kit W/ 3 Inch Flange & Length Options For Peterbilt W/ Low Air Suspension

    Hogebuilt Stainless Steel Quarter Fender Kit W/ 3 Inch Flange & Length Options For Peterbilt W/ Low Air Suspension

    HOGEBUILT FENDERS

    $1,478.99 - $1,517.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 330 1995 thru 2005* Fits Peterbilt 335 2005 thru 2010* Fits Peterbilt 337 2011 thru 2023* Fits Peterbilt 352 1972 thru 1980* Fits Peterbilt...
    PPR_301233
    SKU:
    PPR_301233
    Product Type:
    Rear Fenders
    $1,478.99 - $1,517.99
    Qty in Cart: 0
    Price:
    $1,478.99 - $1,517.99
    Subtotal:
  • Rockwood Lower Door Kick Panel Flame Silhouette Design Stainless Steel Driver Side W/ Passenger Side Rectangular View Window Cutout For Peterbilt 359 & 370 Series

    Rockwood Lower Door Kick Panel Flame Silhouette Design Stainless Steel Driver Side W/ Passenger Side Rectangular View Window Cutout For Peterbilt 359 & 370 Series

    ROCKWOOD

    $128.99
    Lower Door Kick Panel Flame Silhouette Design Stainless Steel Driver Side W/ Passenger Side Rectangular View Window Cutout Fits Peterbilt 359 & 370 Series* High Quality Lower Door Kick Panel* Made Of...
    PDA164
    SKU:
    PDA164
    Product Type:
    Interior
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    $128.99
    Qty in Cart: 0
    Price:
    $128.99
    Subtotal:
  • Merritt Aluminum Cab Rack W/ Jail Bar Window & 2 Side Enclosures 86 X 68 X 9 Inch

    Merritt Aluminum Cab Rack W/ Jail Bar Window & 2 Side Enclosures 86 X 68 X 9 Inch

    MERRITT

    $5,806.99
    Diamond Plated Aluminum Cab Rack W/ 2 Chain Hangers* High Quality Cab Rack* Made Of Aluminum* Includes:  - Diamond Plated Body  - Jail Bar Window  - (2) Side Enclosures  - (2) Chain Hangers*...
    319381M0086
    SKU:
    319381M0086
    Product Type:
    Exterior
    Location:
    Made In USA
    Height Options:
    68 Inch
    Finish Options:
    Diamond Plate
    Width Options:
    86 Inch
    Material Options:
    Aluminum
    Make:
    Universal Items
    $5,806.99
    Qty in Cart: 0
    Price:
    $5,806.99
    Subtotal:
  • Merritt Aluminum Cab Rack W/ Radius Corners & Jail Bar Window 70 X 68 Inch

    Merritt Aluminum Cab Rack W/ Radius Corners & Jail Bar Window 70 X 68 Inch

    MERRITT

    $3,318.99
    Diamond Plated Aluminum Cab Rack W/ 2 Split Trays/Lids & 4 Inch Tall Foot Assembly* High Quality Cab Rack* Made Of Aluminum* Includes:  - Diamond Plated Body  - Radius Corners  - 4 Inch Tall Foot...
    317367C0446
    SKU:
    317367C0446
    Product Type:
    Exterior
    Material Options:
    Aluminum
    Location:
    Made In USA
    Height Options:
    68 Inch
    Finish Options:
    Diamond Plate
    Width Options:
    70 Inch
    Make:
    Universal Items
    $3,318.99
    Qty in Cart: 0
    Price:
    $3,318.99
    Subtotal:
  • Merritt Aluminum Tool Box Kit W/ Black Textured Double Doors 60 X 18 X 18 Inch

    Merritt Aluminum Tool Box Kit W/ Black Textured Double Doors 60 X 18 X 18 Inch

    MERRITT

    $2,095.99
    60 X 18 X 18 Inch Aluminum Tool Box Kit W/ Black Textured Double Doors By Merritt* High Quality Tool Box Kit* Made Of Aluminum* Includes:  - Aluminum Smooth Body  - Black Textured Double Doors*...
    291TBK
    SKU:
    291TBK
    Product Type:
    Toolboxes
    Length Options:
    60 Inch
    Width Options:
    18 Inch
    Height Options:
    18 Inch
    Position:
    Kit Full
    Material Options:
    Aluminum
    Location:
    Made In USA
    Make:
    Universal Items
    $2,095.99
    Qty in Cart: 0
    Price:
    $2,095.99
    Subtotal:
  • Total: items /

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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