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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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  • Hub Cap Mounting Tool

    Hub Cap Mounting Tool

    AFTERMARKET

    $54.99
    Mounting Tool for Chrome or Stainless Steel Hub Caps* High Quality Hub Cap Mounting Tool* For Chrome Or Stainless Steel Hub Caps* Made In USA* Sold Individually* Warranty On Hub Cap Mounting Tools...
    09-21000095
    SKU:
    09-21000095
    Product Type:
    Tools
    Make:
    Universal Items
    $54.99
    Qty in Cart: 0
    Price:
    $54.99
    Subtotal:
  • Tire Mounting Tool

    Tire Mounting Tool

    AFTERMARKET

    $82.99
    Tire Mounting Tool* High Quality Tire Mounting Tool* Made In USA* Sold Individually* Warranty On Tire Mounting Tools Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    09-21000072
    SKU:
    09-21000072
    Product Type:
    Tools
    Make:
    Universal Items
    $82.99
    Qty in Cart: 0
    Price:
    $82.99
    Subtotal:
  • 48.5 Inch Heavy Duty Impact Bead Breaker

    48.5 Inch Heavy Duty Impact Bead Breaker

    AFTERMARKET

    $236.99
    Heavy Duty Impact Bead BreakerForce tires off rims safely with this heavy-duty bead breaker tool. Features a powerful ram bar and precision wedge foot that breaks tire seals without damage.* High...
    09-21000088
    SKU:
    09-21000088
    Product Type:
    Tools
    Length Options:
    48 1/2 Inch
    Make:
    Universal Items
    $236.99
    Qty in Cart: 0
    Price:
    $236.99
    Subtotal:
  • Heavy Duty Metal Grip Split 6 Inch

    Heavy Duty Metal Grip Split 6 Inch

    AUTOMANN USA

    $22.90
    Heavy Duty Metal Grip SplitThis Heavy Duty Metal Grip Split pushes repair plugs into tires quickly and easily. Its split-eye grabs plugs firmly, while the strong handle helps make fast, secure...
    09-21000083
    SKU:
    09-21000083
    Product Type:
    Tools
    Length Options:
    6 Inch
    Make:
    Universal Items
    $22.90
    Qty in Cart: 0
    Price:
    $22.90
    Subtotal:
  • 2 to 5.5 Inch Filter Pliers

    2 to 5.5 Inch Filter Pliers

    AUTOMANN USA

    $20.35
    Oil Filter Pliers* High Quality Filter Pliers* 2 Inch To 5 1/2 Inch* Sold Individually* Warranty On Filter Pilers Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    09-21000091
    SKU:
    09-21000091
    Product Type:
    Tools
    Make:
    Universal Items
    $20.35
    Qty in Cart: 0
    Price:
    $20.35
    Subtotal:
  • 11 Inch Cotton Tire Swab

    11 Inch Cotton Tire Swab

    AUTOMANN USA

    $5.09
    Cotton Tire Swab Detailing BrushApply tire mounting lubricant easily with this 11-inch Cotton Tire Swab. Its absorbent cotton head holds plenty of lubricant, helping tires slide smoothly onto rims...
    09-21000068
    SKU:
    09-21000068
    Product Type:
    Tools
    Length Options:
    11 Inch
    Make:
    Universal Items
    $5.09
    Qty in Cart: 0
    Price:
    $5.09
    Subtotal:
  • Heavy Duty Metal Grip Rasp 6.5 Inch

    Heavy Duty Metal Grip Rasp 6.5 Inch

    AUTOMANN USA

    $16.54
    Heavy Duty Metal Grip RaspThis Heavy Duty Metal Grip Rasp prepares tire punctures for repair. At 6.50 inches long with a 0.225-inch rasp tip, it smoothly shapes holes to fit repair plugs perfectly.*...
    09-21000084
    SKU:
    09-21000084
    Product Type:
    Tools
    Length Options:
    6 1/2 Inch
    Make:
    Universal Items
    $16.54
    Qty in Cart: 0
    Price:
    $16.54
    Subtotal:
  • Tire Demounting Tool

    Tire Demounting Tool

    AFTERMARKET

    $282.99
    Tire Demounting Tool* High Quality Tire Demounting Tool* Made In USA* Sold Individually* Warranty On Tire Demounting Tools Against Defects In Workmanship & Material From Date Of Purchase*** High...
    09-21000079
    SKU:
    09-21000079
    Product Type:
    Tools
    Make:
    Universal Items
    $282.99
    Qty in Cart: 0
    Price:
    $282.99
    Subtotal:
  • Valve Core Tool

    Valve Core Tool

    AUTOMANN USA

    $1.93
    Valve Core Tool, Screwdriver Type* High Quality Valve Core Tool* 4.00 Inch Length* Screwdriver Type* Sold Individually* Warranty On Valve Core Tools Against Defects In Workmanship & Material From...
    09-21000086
    SKU:
    09-21000086
    Product Type:
    Tools
    Length Options:
    4 Inch
    Make:
    Universal Items
    $1.93
    Qty in Cart: 0
    Price:
    $1.93
    Subtotal:
  • Adjustable Bearing Race Installer

    Adjustable Bearing Race Installer

    AFTERMARKET

    $333.99
    Universal Bearing Race Installer Adjusts to Fit Races From 3-5/8 Inch to 6-1/2 Inch Diameter* High Quality Bearing Race Installer* Dimensions:  - Length- 12.937 Inch  - Diameter- 1.125 Inch* Made In...
    09-21000060
    SKU:
    09-21000060
    Product Type:
    Tools
    Length Options:
    13 Inch
    Make:
    Universal Items
    $333.99
    Qty in Cart: 0
    Price:
    $333.99
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  • Wheel Valve Core Torque Tool

    Wheel Valve Core Torque Tool

    AUTOMANN USA

    $3.82
    Valve Core Torque Tool* High Quality Valve Core Tool* 4.795 Inch Length* 0.45N For Tpms Valve Cores* Sold Individually* Warranty On Valve Core Tools Against Defects In Workmanship & Material From...
    09-21000080
    SKU:
    09-21000080
    Product Type:
    Tools
    Length Options:
    4 3/4 Inch
    Make:
    Universal Items
    $3.82
    Qty in Cart: 0
    Price:
    $3.82
    Subtotal:
  • 6.05 Inch Tire Inner Liner Scraper

    6.05 Inch Tire Inner Liner Scraper

    AUTOMANN USA

    $6.35
    Hand Operated Tire Inner Liner ScraperRemove old tire inner liner rubber quickly with a HOE style scraper - the go-to tool for tire retreading work. The curved blade and comfortable handle let you...
    09-21000074
    SKU:
    09-21000074
    Product Type:
    Tools
    Length Options:
    6 Inch
    Make:
    Universal Items
    $6.35
    Qty in Cart: 0
    Price:
    $6.35
    Subtotal:
  • Heavy Duty Metal Grip Spiral Probe 5.5 Inch

    Heavy Duty Metal Grip Spiral Probe 5.5 Inch

    AUTOMANN USA

    $19.07
    T-Handle Auto/Truck Spiral ProbeThis Heavy Duty Metal Grip Spiral Probe cleans and shapes tire punctures fast. Its spiral tip cuts through debris while creating perfect channels for repair plugs,...
    09-21000082
    SKU:
    09-21000082
    Product Type:
    Tools
    Length Options:
    5 1/2 Inch
    Make:
    Universal Items
    $19.07
    Qty in Cart: 0
    Price:
    $19.07
    Subtotal:
  • 13/32 Inch Carbide Cutter

    13/32 Inch Carbide Cutter

    AFTERMARKET

    $101.99
    Carbide Cutter 13/32 InchCut through tough metals precisely with this 13/32" Carbide Cutter, featuring a 4.171-inch length and 0.375-inch diameter. Built for professional machining, this durable tool...
    09-21000075
    SKU:
    09-21000075
    Product Type:
    Tools
    Length Options:
    4 1/16 Inch
    Make:
    Universal Items
    $101.99
    Qty in Cart: 0
    Price:
    $101.99
    Subtotal:
  • Automatic Slack Adjuster Puller

    Automatic Slack Adjuster Puller

    AFTERMARKET

    $179.99
    Slack Adjuster Puller for Automatic SlacksEasily remove frozen slack adjusters with a dependable air brake slack adjuster puller tool. Built for heavy-duty trucks, this tool saves time, works faster,...
    09-21000056
    SKU:
    09-21000056
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $179.99
    Qty in Cart: 0
    Price:
    $179.99
    Subtotal:
  • Wooden Handle Ball Bearing Roller Stitcher

    Wooden Handle Ball Bearing Roller Stitcher

    AUTOMANN USA

    $12.06
    Tire Stitcher with Wood HandleFix tires right with this tire stitcher tool. It presses patches firmly into your tire's inner surface, making sure they stick properly for a safe, lasting repair.* High...
    09-21000077
    SKU:
    09-21000077
    Product Type:
    Tools
    Length Options:
    7 1/2 Inch
    Make:
    Universal Items
    $12.06
    Qty in Cart: 0
    Price:
    $12.06
    Subtotal:
  • 4-in-1 Wire Tool Service Set

    4-in-1 Wire Tool Service Set

    AFTERMARKET

    $130.99
    Service Set - Standard And Angled Wire Service ToolThis 4-in-1 Wire Service Set includes two essential tools - one with a standard straight head and one with an angled head. Both tools strip, crimp,...
    09-21000045
    SKU:
    09-21000045
    Product Type:
    Tools
    Make:
    Universal Items
    $130.99
    Qty in Cart: 0
    Price:
    $130.99
    Subtotal:
  • 1/4 - 3/4 Inch PLC Fitting Removal Tool

    1/4 - 3/4 Inch PLC Fitting Removal Tool

    AUTOMANN USA

    $13.85
    Push to Connect Air Fitting Removal Tool* High Quality Fitting Removal Tool* Thickness- 0.07 Inch* For Removal Of Plc Fittings 1/4 Inch - 3/4 Inch* Sold Individually* Warranty On Fitting Removal...
    09-21000071
    SKU:
    09-21000071
    Product Type:
    Tools
    Make:
    Universal Items
    $13.85
    Qty in Cart: 0
    Price:
    $13.85
    Subtotal:
  • Torque Multiplier Lug Nut Wrench 1:78 Ratio

    Torque Multiplier Lug Nut Wrench 1:78 Ratio

    AFTERMARKET

    $150.99
    Torque Multiplier Lug Nut Wrench* High Quality Torque Multiplier * Extension* 32 MM And 33 MM Sockets* 1:78 Ratio* Made In USA* Sold Individually* Warranty On Torque Multiplier S Against Defects In...
    09-21000073
    SKU:
    09-21000073
    Product Type:
    Tools
    Make:
    Universal Items
    $150.99
    Qty in Cart: 0
    Price:
    $150.99
    Subtotal:
  • Tire Bead Holder

    Tire Bead Holder

    AUTOMANN USA

    $29.68
    Tool Truck Tire Bead HolderThis tire bead holder makes mounting truck tires easier. Built tough with steel inside and rubber outside, it protects your wheels. The no-slip grip keeps the tool from...
    09-21000062
    SKU:
    09-21000062
    Product Type:
    Tools
    Length Options:
    6 Inch
    Make:
    Universal Items
    $29.68
    Qty in Cart: 0
    Price:
    $29.68
    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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