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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
  • Air Spring Double Convoluted 64733, 2380Z7

    Air Spring Double Convoluted 64733, 2380Z7

    AFTERMARKET

    $173.99
    Air Spring Double Convoluted Replacement* High Quality Air Spring* Double Convoluted* 2100 Load At 80 PSI* 2600 Load At 100 PSI* 100 CPM Natural Frequency* Without Bumper* Dimensions:  - 7.50 Inch...
    29-05100102
    SKU:
    29-05100102
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $173.99
    Qty in Cart: 0
    Price:
    $173.99
    Subtotal:
  • Front Hanger E5299. E-5299. 56673001. 56673-001. R305299

    Front Hanger E5299. E-5299. 56673001. 56673-001. R305299

    AFTERMARKET

    $214.99
    Replacement Front Hanger* High Quality Hanger* Made In USA* Sold Individually* Warranty On Hangers Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket...
    29-05100094
    SKU:
    29-05100094
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $214.99
    Qty in Cart: 0
    Price:
    $214.99
    Subtotal:
  • Full Tilt 1:32 AR X 78mm Stage 1 Turbocharger For Caterpillar

    Full Tilt 1:32 AR X 78mm Stage 1 Turbocharger For Caterpillar

    FULL TILT PERFORMANCE

    $2,717.99
    Caterpillar 78mm Stage 1 TurbochargerThis high-performance turbocharger is designed specifically for 1990-2003 Caterpillar engines. It features a non-wastegated design with a 78mm intake and 1.32 AR...
    29-0704128
    SKU:
    29-0704128
    Product Type:
    Engine Parts
    Style Options:
    Caterpillar
    Location:
    Made In USA
    Make:
    Universal Items
    $2,717.99
    Qty in Cart: 0
    Price:
    $2,717.99
    Subtotal:
  • 9 X 3 Inch Emergency Brake Shoe Set For Dodge / GMC Trucks

    9 X 3 Inch Emergency Brake Shoe Set For Dodge / GMC Trucks

    AFTERMARKET

    $62.99
    Replacement Dodge / GMC Truck Emergency Brake Shoe Set* High Quality Emergency Brake Shoe Set* 9 Inch X 3 Inch* Made In USA* Sold Individually* Warranty On Emergency Brake Shoe Sets Against Defects...
    29-05170010
    SKU:
    29-05170010
    Length Options:
    9 Inch
    Width Options:
    3 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $62.99
    Qty in Cart: 0
    Price:
    $62.99
    Subtotal:
  • Pivot Bolt Kit For A Bumper Flip Kit For Kenworth / Peterbilt

    Pivot Bolt Kit For A Bumper Flip Kit For Kenworth / Peterbilt

    TWELVE GAUGE

    $19.37
    Kenworth & Peterbilt Pivot Bolt Kit For A Bumper Flip Kit* High Quality Pivot Bolt Kit* Sold Individually* Warranty On Pivot Bolt Kits Against Defects In Workmanship & Material From Date Of...
    29-0108010
    SKU:
    29-0108010
    Product Type:
    Bumpers
    Position:
    Kit Full
    Make:
    Kenworth
    Make:
    Peterbilt
    $19.37
    Qty in Cart: 0
    Price:
    $19.37
    Subtotal:
  • 15 X 4 Inch Brake Drum 90660, 506896, 2605075C1

    15 X 4 Inch Brake Drum 90660, 506896, 2605075C1

    AFTERMARKET

    $553.99
    Replacement Brake Drum 15 X 4 Inch* High Quality Brake Drum* Dimensions:  - Crake Surface Diameter- 15.00 Inch  - Overall Depth- 9.04 Inch  - Brake Surface Flat- 4.50 Inch  - Pilot Diameter- 8.78...
    29-05170009
    SKU:
    29-05170009
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $553.99
    Qty in Cart: 0
    Price:
    $553.99
    Subtotal:
  • Front Spring Hanger 501851, 50185001, 478741, 47874001 For Hendrickson

    Front Spring Hanger 501851, 50185001, 478741, 47874001 For Hendrickson

    AFTERMARKET

    $104.99
    Replacement Hendrickson Front Spring Hanger* High Quality Hanger* Made In USA* Sold Individually* Warranty On Hangers Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    29-05100101
    SKU:
    29-05100101
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $104.99
    Qty in Cart: 0
    Price:
    $104.99
    Subtotal:
  • 20 Inch Stainless Steel Texas Mitered End Bumper With Blind Mount Plates For Kenworth, Peterbilt

    20 Inch Stainless Steel Texas Mitered End Bumper With Blind Mount Plates For Kenworth, Peterbilt

    TWELVE GAUGE

    $1,591.99
    20 Inch SS Texas Mitered End Bumper With Blind Mount Plates* High Quality Bumper* Made Of Stainless Steel* 20 Inch Texas Mitered End* Blind Mount Plates* Sold Individually* Warranty On Bumpers...
    29-010020100
    SKU:
    29-010020100
    Product Type:
    Exterior
    Height Options:
    20 Inch
    Style Options:
    Texas Mitered End
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    Make:
    Peterbilt
    $1,591.99
    Qty in Cart: 0
    Price:
    $1,591.99
    Subtotal:
  • Double Lock Hanger E10263, E3Ht5785Ba, 46843001

    Double Lock Hanger E10263, E3Ht5785Ba, 46843001

    AFTERMARKET

    $163.99
    Replacement Double Lock Hanger* High Quality Double Lock Hanger* Made In USA* Sold Individually* Warranty On Double Lock Hangers Against Defects In Workmanship & Material From Date Of Purchase***...
    29-05100100
    SKU:
    29-05100100
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $163.99
    Qty in Cart: 0
    Price:
    $163.99
    Subtotal:
  • Center Hanger E5300, 56833003, 1218L90

    Center Hanger E5300, 56833003, 1218L90

    AFTERMARKET

    $597.99
    Replacement Center Hanger* High Quality Hanger Center* Made In USA* Sold Individually* Warranty On Hanger Centers Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    29-05100093
    SKU:
    29-05100093
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $597.99
    Qty in Cart: 0
    Price:
    $597.99
    Subtotal:
  • Air Spring Double Convoluted 65640. FD 120-20 767. FD120-20767

    Air Spring Double Convoluted 65640. FD 120-20 767. FD120-20767

    AFTERMARKET

    $180.99
    Replacement Air Spring Double Convoluted* High Quality Air Spring* Double Convoluted* 2100 Load At 80 PSI* 2600 Load At 100 PSI* 100 CPM Natural Frequency* Without Bumper* Dimensions:  - 7.50 Inch...
    29-05100098
    SKU:
    29-05100098
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $180.99
    Qty in Cart: 0
    Price:
    $180.99
    Subtotal:
  • 22 Inch Stainless Steel Texas Mitered End Bumper With Blind Mount Plates For Kenworth, Peterbilt

    22 Inch Stainless Steel Texas Mitered End Bumper With Blind Mount Plates For Kenworth, Peterbilt

    TWELVE GAUGE

    $1,642.99
    Kenworth / Peterbilt 22 Inch Texas Mitered End Bumper With Blind Mount Plates* High Quality Bumper* Made Of Stainless Steel* 22 Inch Texas Mitered End* Blind Mounting Plates * Made In USA* Sold...
    29-010022084
    SKU:
    29-010022084
    Product Type:
    Bumpers
    Height Options:
    22 Inch
    Type Options:
    Blind Mount
    Style Options:
    Texas Mitered End
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    Make:
    Peterbilt
    $1,642.99
    Qty in Cart: 0
    Price:
    $1,642.99
    Subtotal:
  • 20 Inch Stainless Steel Texas Boxed End Bumper With Blind Mount Plates For Kenworth, Peterbilt

    20 Inch Stainless Steel Texas Boxed End Bumper With Blind Mount Plates For Kenworth, Peterbilt

    TWELVE GAUGE

    $1,591.99
    20 Inch SS Texas Boxed End Bumper With Blind Mount Plates* High Quality Bumper* Made Of Stainless Steel* 20 Inch Texas Boxed End* Blind Mount Plates* Sold Individually* Warranty On Bumpers Against...
    29-010020102
    SKU:
    29-010020102
    Product Type:
    Exterior
    Height Options:
    20 Inch
    Style Options:
    Texas Boxed End
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    Make:
    Peterbilt
    $1,591.99
    Qty in Cart: 0
    Price:
    $1,591.99
    Subtotal:
  • 20 Inch Stainless Steel Texas Rolled End Bumper With Blind Mount Plates For Kenworth, Peterbilt

    20 Inch Stainless Steel Texas Rolled End Bumper With Blind Mount Plates For Kenworth, Peterbilt

    TWELVE GAUGE

    $1,591.99
    20 Inch SS Texas Rolled End Bumper With Blind Mount Plates* High Quality Bumper* Made Of Stainless Steel* 20 Inch Texas Rolled End* Blind Mount Plates* Sold Individually* Warranty On Bumpers Against...
    29-010020101
    SKU:
    29-010020101
    Product Type:
    Bumpers
    Height Options:
    20 Inch
    Style Options:
    Texas Rolled End
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    Make:
    Peterbilt
    $1,591.99
    Qty in Cart: 0
    Price:
    $1,591.99
    Subtotal:
  • Driver Side Swivel Base For Bostrom Low Profile ProRide Truck Seat

    Driver Side Swivel Base For Bostrom Low Profile ProRide Truck Seat

    BOSTROM TRUCK SEATS

    $842.99
    Bostrom Low Profile ProRide Truck Seat Swivel Base For Driver Side* High Quality Swivel Base* Driver Side* Made In USA* Sold Individually* Warranty On Swivel Bases Against Defects In Workmanship &...
    2321425001
    SKU:
    2321425001
    Product Type:
    Seats
    Position:
    Driver Side
    Location:
    Made In USA
    Make:
    Universal Items
    $842.99
    Qty in Cart: 0
    Price:
    $842.99
    Subtotal:
  • TPHD Flat Top Front Axle Cover Hubcap Kit For 3MM Hub Pilot Wheels

    TPHD Flat Top Front Axle Cover Hubcap Kit For 3MM Hub Pilot Wheels

    TPHD

    $40.79
    Chrome Flat Top Cover Kit With 33mm Axle Covers & Thread On Nut Set* High Quality Front Axle Cover * Chrome-Plated Plastic* With Flat Top Nut Covers * 33Mm Thread On* Sold As Set* Warranty On Front...
    09-200500079
    SKU:
    09-200500079
    Product Type:
    Wheels
    Material Options:
    Plastic/Poly
    Style Options:
    Thread On
    Finish Options:
    Chrome-Plated
    Make:
    Universal Items
    $40.79
    Qty in Cart: 0
    Price:
    $40.79
    Subtotal:
  • De-Icer For Auto & Trucks - 12 Oz Spray

    De-Icer For Auto & Trucks - 12 Oz Spray

    PARTS DISTRIBUTING

    $7.13
    Automotive Windshield De-IcerClear stubborn winter frost and ice with this professional-grade de-icer spray. The formula quickly treats windshields, windows, and frozen locks in freezing conditions...
    09-17100052
    SKU:
    09-17100052
    Product Type:
    Polishing
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $7.13
    Qty in Cart: 0
    Price:
    $7.13
    Subtotal:
  • Chrome Standing Lady Key Chain

    Chrome Standing Lady Key Chain

    GRAND GENERAL

    $16.91
    Chrome Standing Lady Metal Cutout Key Chain* High Quality Key Chain* Chrome-Plated * Standing Lady* Sold Individually* Warranty On Key Chains Against Defects In Workmanship & Material From Date Of...
    09-220000037
    SKU:
    09-220000037
    Product Type:
    Apparel
    Finish Options:
    Chrome-Plated
    Make:
    Universal Items
    $16.91
    Qty in Cart: 0
    Price:
    $16.91
    Subtotal:
  • 40 Diode Oval Stop, Turn, And Tail Light W/ Chrome Flush Mount Bezel

    40 Diode Oval Stop, Turn, And Tail Light W/ Chrome Flush Mount Bezel

    UNITED PACIFIC

    $45.08
    Vintage Style Stop, Turn, And Tail Light W/ Chrome Flush Mount BezelGet the best of both worlds with this classic-looking LED light. Perfect for your vintage ride or trailer, it packs 40 bright...
    09-16090313
    SKU:
    09-16090313
    Height Options:
    2 Inch
    Color:
    Red
    Shape Options:
    Oval
    Finish Options:
    Chrome-Plated
    Material Options:
    Plastic/Poly
    Product Type:
    Lighting
    Width Options:
    4 Inch
    Length Options:
    7 Inch
    Style Options:
    Flush Mount
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $45.08
    Qty in Cart: 0
    Price:
    $45.08
    Subtotal:
  • Radiator Genie Industrial Air & Water Cleaning Wand

    Radiator Genie Industrial Air & Water Cleaning Wand

    RADIATOR GENIE

    $143.99
    Heavy Duty 50 Inch Radiator & Condenser Cleaning WandThis professional-grade blowout tool features an extended 50-inch wand that easily reaches deep into radiators, condensers, and CAC (Charge Air...
    09-2100094
    SKU:
    09-2100094
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Length Options:
    50 Inch
    $143.99
    Qty in Cart: 0
    Price:
    $143.99
    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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