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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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  • Roadworks Stainless Steel Hubcover 22.5 Inch W/ Disk Dana-Spicer Hubcover, Chrome Plastic Nut Covers & Mounting Hardware

    Roadworks Stainless Steel Hubcover 22.5 Inch W/ Disk Dana-Spicer Hubcover, Chrome Plastic Nut Covers & Mounting Hardware

    ROADWORKS

    $200.99
    Stainless Steel Hubcover 22.5 Inch W/ Disk Dana-Spicer Hubcover, Chrome Plastic Nut Covers & Mounting Hardware By Roadworks* High Quality Hubcover* Made Of 304 Stainless Steel* Polished Finish* For...
    29-2003030
    SKU:
    29-2003030
    Product Type:
    Wheels
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Finish Options:
    Polished
    Make:
    Universal Items
    $200.99
    Qty in Cart: 0
    Price:
    $200.99
    Subtotal:
  • Roadworks Stainless Steel Hubcover 22.5 Inch W/ Disk Dana-Spicer Hubcover & Mounting Hardware For Disk Hubcovers

    Roadworks Stainless Steel Hubcover 22.5 Inch W/ Disk Dana-Spicer Hubcover & Mounting Hardware For Disk Hubcovers

    ROADWORKS

    $184.99
    Stainless Steel Hubcover 22.5 Inch W/ Disk Dana-Spicer Hubcover & Mounting Hardware By Roadworks Fits Disk Hubcovers* High Quality Hubcover* Made Of 304 Stainless Steel* Polished Finish* For Disk...
    29-2003029
    SKU:
    29-2003029
    Product Type:
    Wheels
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Finish Options:
    Polished
    Make:
    Universal Items
    $184.99
    Qty in Cart: 0
    Price:
    $184.99
    Subtotal:
  • Roadworks Stainless Steel Hubcover 24.5 Inch

    Roadworks Stainless Steel Hubcover 24.5 Inch

    ROADWORKS

    $182.99
    * High Quality Hubcover* Made Of 304 Stainless Steel* Polished Finish* For Disk Hubcovers* Includes:  - Disk Dana-Spicer Hub Cover  - Mounting Hardware * 24.5 Inch Diameter Disk* Sold Individually*...
    29-2003031
    SKU:
    29-2003031
    Product Type:
    Wheels
    Finish Options:
    Polished
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Make:
    Universal Items
    $182.99
    Qty in Cart: 0
    Price:
    $182.99
    Subtotal:
  • Roadworks Stainless Steel Hubcover W/ Flame Dana-Spicer Hubcover & Mounting Hardware For Flame Drive Axle Hubcovers

    Roadworks Stainless Steel Hubcover W/ Flame Dana-Spicer Hubcover & Mounting Hardware For Flame Drive Axle Hubcovers

    ROADWORKS

    $114.99
    Stainless Steel Hubcover W/ Flame Dana-Spicer Hubcover & Mounting Hardware By Roadworks Fits Flame Drive Axle Hubcovers* High Quality Hubcover* Made Of 304 Stainless Steel* Polished Finish* For Flame...
    29-2003027
    SKU:
    29-2003027
    Product Type:
    Wheels
    Finish Options:
    Polished
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Make:
    Universal Items
    $114.99
    Qty in Cart: 0
    Price:
    $114.99
    Subtotal:
  • Roadworks Stainless Steel Inner Breather Light Panel W/ 12 Bullseye Light Holes For Peterbilt W/ 13 Inch Donaldson Breather

    Roadworks Stainless Steel Inner Breather Light Panel W/ 12 Bullseye Light Holes For Peterbilt W/ 13 Inch Donaldson Breather

    ROADWORKS

    $117.99
    Stainless Steel Inner Breather Light Panel W/ 12 Bullseye Light Holes By Roadworks Fits 13 Inch Donaldson Breather* High Quality Inner Breather Light Panel* Made Of 430 Stainless Steel* Fits 13 Inch...
    29-0905110
    SKU:
    29-0905110
    Product Type:
    Exterior
    Light Options:
    Without Lights
    Diameter Options:
    13 Inch
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Make:
    Peterbilt
    $117.99
    Qty in Cart: 0
    Price:
    $117.99
    Subtotal:
  • Outer Spindle Nut 4 Inch A/F & 3.25 Inch 12 Thread

    Outer Spindle Nut 4 Inch A/F & 3.25 Inch 12 Thread

    AFTERMARKET

    $43.85
    4 Inch A/F Outer Spindle Nut 3.25 Inch 12 Thread* High Quality Outer Spindle Nut* Dimensions:  - 4.00 Inch A/F  - 3.25 Inch - 12 Thread  - 0.38 Inch Thick* Sold Individually* Warranty On Outer...
    29-203301
    SKU:
    29-203301
    Product Type:
    Wheels
    Make:
    Universal Items
    $43.85
    Qty in Cart: 0
    Price:
    $43.85
    Subtotal:
  • 32 X 79 Inch Mattress W/ 7 Inch Base Height & 1 Inch C-Gell Height

    32 X 79 Inch Mattress W/ 7 Inch Base Height & 1 Inch C-Gell Height

    AFTERMARKET

    $302.99
    Mattress 32 X 79 Inch W/ 7 Inch Base Height & 1 Inch C-Gell Height* High Quality Mattress* Includes:  - 7 Inch Base Height  - 1 Inch C-Gell Height* Dimensions:  - 32 Inch Length Of The Truck  - 79...
    29-1545007
    SKU:
    29-1545007
    Product Type:
    Interior
    Height Options:
    8 Inch
    Width Options:
    79 Inch
    Length Options:
    32 Inch
    Make:
    Universal Items
    $302.99
    Qty in Cart: 0
    Price:
    $302.99
    Subtotal:
  • Roadworks Stainless Steel Hubcover W/ Super-Hub Dana-Spicer Hubcover & Mounting Hardware For Super-Hub Drive Axle Hubcovers

    Roadworks Stainless Steel Hubcover W/ Super-Hub Dana-Spicer Hubcover & Mounting Hardware For Super-Hub Drive Axle Hubcovers

    ROADWORKS

    $165.99
    Stainless Steel Hubcover W/ Super-Hub Dana-Spicer Hubcover & Mounting Hardware By Roadworks Fits Super-Hub Drive Axle Hubcovers* High Quality Hubcover* Made Of 304 Stainless Steel* Polished Finish*...
    29-2003028
    SKU:
    29-2003028
    Product Type:
    Wheels
    Location:
    Made In USA
    Finish Options:
    Polished
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $165.99
    Qty in Cart: 0
    Price:
    $165.99
    Subtotal:
  • Fifth Wheel Mounting Rail 55 X 3 X 4 Inch

    Fifth Wheel Mounting Rail 55 X 3 X 4 Inch

    OPP - ORIGINAL PARTS PROGRAM

    $326.99
    55 X 3 X 4 Inch Fifth Wheel Mounting Rail* High Quality Fifth Wheel Mounting Rail* Includes:  - (2) 5th Wheel Mounting Angle Brackets* Dimensions:  - 55 Inch Length  - 3 Inch Width  - 4 Inch Height ...
    29-051100033
    SKU:
    29-051100033
    Product Type:
    Frame & Chassis
    Length Options:
    55 Inch
    Height Options:
    4 Inch
    Width Options:
    3 Inch
    Location:
    Made In USA
    Make:
    Universal Items
    $326.99
    Qty in Cart: 0
    Price:
    $326.99
    Subtotal:
  • Ridewell Bushing Replacement Kit W/ Hardware

    Ridewell Bushing Replacement Kit W/ Hardware

    RIDEWELL

    $276.99
    Bushing Replacement Kit W/ Hardware By Ridewell* High Quality Bushing Replacement Kit* Used For Light Trac Lift Axle Air Suspension (Not Included)* Includes:  - (2) Kits (1 Per Axle)  - Needed...
    29-05100584
    SKU:
    29-05100584
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Location:
    Made In USA
    Make:
    Universal Items
    $276.99
    Qty in Cart: 0
    Price:
    $276.99
    Subtotal:
  • Bug Screen Hardware W/ 12 Pull DOT Fasteners For BS-4900 Abstract Bug Screen

    Bug Screen Hardware W/ 12 Pull DOT Fasteners For BS-4900 Abstract Bug Screen

    ROBERT JAMES ENTERPRISES

    $34.32
    Bug Screen Hardware W/ 12 Pull DOT Fasteners By Robert James Enterprises* High Quality Bug Screen Hardware* Hardware Kit For BS-4900 Abstract Bug Screen* (12) Pull DOT Fasteners* Sold Individually*...
    29-120904
    SKU:
    29-120904
    Product Type:
    Hood Parts & Acc.
    Position:
    Kit Full
    Make:
    Universal Items
    $34.32
    Qty in Cart: 0
    Price:
    $34.32
    Subtotal:
  • Stainless Steel 4 Inch Fuel Tank Strap Cover

    Stainless Steel 4 Inch Fuel Tank Strap Cover

    AFTERMARKET

    $56.99
    4 Inch Fuel Tank Strap Cover Stainless Steel* High Quality Fuel Tank Strap Cover* Made Of 20 Gauge 304 Stainless Steel* #8 Mirror Finish* 4 Inch Width* Sold Individually* Warranty On Fuel Tank Strap...
    29-06010023
    SKU:
    29-06010023
    Product Type:
    Fuel Tanks
    Finish Options:
    Polished
    Width Options:
    4 Inch
    Size Options:
    20 Gauge
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Make:
    Universal Items
    $56.99
    Qty in Cart: 0
    Price:
    $56.99
    Subtotal:
  • NOX Sensor W/ Sensor Thread & Interface Module Replaces 2894945, 5293295RX & 2872297 For Cummins ISB

    NOX Sensor W/ Sensor Thread & Interface Module Replaces 2894945, 5293295RX & 2872297 For Cummins ISB

    AFTERMARKET

    $340.99
    NOX Sensor W/ Interface Module & Sensor Thread Fits Cummins ISB Replaces 2894945, 5293295RX & 2872297* High Quality NOX Sensor* Includes:  - Sensor Body  - Make-Specific Connector  - Interface...
    29-08060033
    SKU:
    29-08060033
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $340.99
    Qty in Cart: 0
    Price:
    $340.99
    Subtotal:
  • Roadworks 94 X 4 Inch Stainless Steel Full Bumper Bar W/ 14 Round 2 Inch Amber Beehive LEDs & Amber Lens

    Roadworks 94 X 4 Inch Stainless Steel Full Bumper Bar W/ 14 Round 2 Inch Amber Beehive LEDs & Amber Lens

    ROADWORKS

    $375.99
    94 X 4 Inch Stainless Steel Full Bumper Bar W/ 14 Round 2 Inch Amber Beehive LEDs & Amber Lens By Roadworks* High Quality Full Bumper Bar* Made Of 430 Stainless Steel* Tabbed Top Lip On Ends*...
    09-010600195
    SKU:
    09-010600195
    Height Options:
    4 Inch
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Length Options:
    94 Inch
    Product Type:
    Bumpers
    Light Options:
    Without Lights
    Make:
    Universal Items
    $375.99
    Qty in Cart: 0
    Price:
    $375.99
    Subtotal:
  • 13/16 X 1 3/8 Inch Chrome Bullet Push On Lug Nut Covers - Pack Of 10

    13/16 X 1 3/8 Inch Chrome Bullet Push On Lug Nut Covers - Pack Of 10

    GRAND GENERAL

    $16.20
    Chrome Bullet Push On Lug Nut Covers* High Quality Nut Cover* Made Of Chrome-Plated Plastic* Bullet Style* Dimensions:  - 1-3/8 Inch Length  - 13/16 Inch A/F* Push-On* Sold As Pack (10)* Warranty On...
    09-20060015
    SKU:
    09-20060015
    Style Options:
    Push On
    Product Type:
    Wheels
    Finish Options:
    Chrome-Plated
    Make:
    Universal Items
    Shape Options:
    Bullet
    Length Options:
    1 1/4 Inch
    $16.20
    Qty in Cart: 0
    Price:
    $16.20
    Subtotal:
  • 33mm x 4.25 Inch Chrome Cylinder Push On Lug Nut Cover

    33mm x 4.25 Inch Chrome Cylinder Push On Lug Nut Cover

    GRAND GENERAL

    $37.46
    Chrome Plastic Push On 33MM Flat Top Cylinder Lug Nut Cover* High Quality Nut Cover* Made Of Chrome-Plated Plastic* Cylinder Style* Dimensions:  - 4.25 Inch Length  - 33 MM Diameter* Push-On* Sold As...
    09-20050157
    SKU:
    09-20050157
    Length Options:
    4 1/4 Inch
    Shape Options:
    Cylindrical
    Finish Options:
    Chrome-Plated
    Style Options:
    Push On
    Make:
    Universal Items
    Product Type:
    Wheels
    $37.46
    Qty in Cart: 0
    Price:
    $37.46
    Subtotal:
  • 33mm x 4.5 Inch Chrome Spear Push On Lug Nut Cover

    33mm x 4.5 Inch Chrome Spear Push On Lug Nut Cover

    GRAND GENERAL

    $35.29
    Spear Chrome Plastic 33mm Lug Nut Cover* High Quality Nut Cover* Made Of Chrome-Plated Plastic* Spear Style* Dimensions:  - 4.5 Inch Length  - 33 MM Diameter* Push-On* Sold As Pack (10)* Warranty On...
    09-20050156
    SKU:
    09-20050156
    Finish Options:
    Chrome-Plated
    Product Type:
    Wheels
    Style Options:
    Push On
    Make:
    Universal Items
    Length Options:
    4 1/2 Inch
    Shape Options:
    Spherical
    $35.29
    Qty in Cart: 0
    Price:
    $35.29
    Subtotal:
  • 33mm x 5 Inch Chrome Hex Flat Top Screw On Lug Nut Cover - Pack Of 10

    33mm x 5 Inch Chrome Hex Flat Top Screw On Lug Nut Cover - Pack Of 10

    GRAND GENERAL

    $39.61
    33mm Chrome Hex Flat Top Lug Nut Cover - Screw On* High Quality Nut Cover* Made Of Chrome-Plated Plastic* Flat Top Hex Style* Dimensions:  - 5 Inch Length  - 33 MM A/F* Screw-On* Sold As Pack (10)*...
    09-20050152
    SKU:
    09-20050152
    Length Options:
    5 Inch
    Shape Options:
    Hexagon
    Product Type:
    Wheels
    Finish Options:
    Chrome-Plated
    Style Options:
    Thread On
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $39.61
    Qty in Cart: 0
    Price:
    $39.61
    Subtotal:
  • 33mm x 5 Inch Chrome Hex Flat Top Push On Lug Nut Cover - Pack Of 10

    33mm x 5 Inch Chrome Hex Flat Top Push On Lug Nut Cover - Pack Of 10

    GRAND GENERAL

    $39.61
    33mm Chrome Hex Flat Top Lug Nut Cover - Push On* High Quality Nut Cover* Made Of Chrome-Plated Plastic* Flat Top Hex Style* Dimensions:  - 5 Inch Length  - 33 MM A/F* Push-On* Sold As Pack (10)*...
    09-20050151
    SKU:
    09-20050151
    Finish Options:
    Chrome-Plated
    Product Type:
    Wheels
    Style Options:
    Push On
    Make:
    Universal Items
    Shape Options:
    Hexagon
    Length Options:
    5 Inch
    Ready To Ship:
    Yes
    $39.61
    Qty in Cart: 0
    Price:
    $39.61
    Subtotal:
  • 33mm x 3-1/2 Inch Chrome Gear Screw On Lug Nut Cover - Pack Of 10

    33mm x 3-1/2 Inch Chrome Gear Screw On Lug Nut Cover - Pack Of 10

    GRAND GENERAL

    $39.61
    33mm Chrome Plastic Gear Nut Covers - Screw OnThis Chrome plastic gear-style screw-on nut cover is a premium accessory designed for trucks and trailers, featuring a stylish chrome finish and easy...
    09-20050150
    SKU:
    09-20050150
    Finish Options:
    Chrome-Plated
    Product Type:
    Wheels
    Style Options:
    Thread On
    Make:
    Universal Items
    Length Options:
    3 1/2 Inch
    $39.61
    Qty in Cart: 0
    Price:
    $39.61
    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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