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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
  • Aluminum 4 Post Sasquatch Moose Bumper W/ XL Vertical Grille Bars, Center Tow Pins, Tandem Turn Signal Lights & 4 Inch Lower Rake For Peterbilt 378, 379 SFA

    Aluminum 4 Post Sasquatch Moose Bumper W/ XL Vertical Grille Bars, Center Tow Pins, Tandem Turn Signal Lights & 4 Inch Lower Rake For Peterbilt 378, 379 SFA

    MAGNUM

    $7,588.99
    4 Post Sasquatch Moose Bumper W/ Vertical Grille Bars, Tow Pins, Turn Signal Lights & Lower RakeProtect your Peterbilt 378 or 379 SFA in style with the Aluminum 4 Post Sasquatch Moose Bumper...
    01-013000299
    SKU:
    01-013000299
    Material Options:
    Aluminum
    Product Type:
    Bumpers
    Finish Options:
    Polished
    Style Options:
    Set Forward Axle
    Make:
    Peterbilt
    $7,588.99
    Qty in Cart: 0
    Price:
    $7,588.99
    Subtotal:
  • Legendary 2 Inch Glass Watermelon 4 Wire Dual Tone LED Lights W/ Color Options & No Grommet Mount

    Legendary 2 Inch Glass Watermelon 4 Wire Dual Tone LED Lights W/ Color Options & No Grommet Mount

    LEGENDARY

    $23.99
    The Legendary Extreme 2-Inch Watermelon Dual-Color LED Light combines high visibility, durability, and versatile lighting performance in a compact OEM replacement design. Featuring a clear real-glass...
    PPR_299615
    SKU:
    PPR_299615
    Color:
    Amber/Green
    Product Type:
    Lighting
    Material Options:
    Glass
    Color:
    Amber/Purple
    Color:
    Amber/Blue
    Diameter Options:
    2 Inch
    Shape Options:
    Round
    Style Options:
    Watermelon
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Color:
    Red/Green
    Color:
    Red/Blue
    Color:
    Red/Purple
    $23.99
    Qty in Cart: 0
    Price:
    $23.99
    Subtotal:
  • Bostrom HiPro-T915 Seat - Mordura Cloth - W/O Swivel, Or Suspension Cover - Includes Standard Dampers And Manual Lumbar

    Bostrom HiPro-T915 Seat - Mordura Cloth - W/O Swivel, Or Suspension Cover - Includes Standard Dampers And Manual Lumbar

    BOSTROM TRUCK SEATS

    $990.99 - $1,345.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBostrom T915 Standard Base High Back Seat - Black Mordura ClothBlack Mordura Cloth Standard Base High...
    PPR_299990
    SKU:
    PPR_299990
    Material Options:
    Cloth
    Color:
    Red
    Color:
    Black
    Truck Class:
    Heavy Duty
    Type Options:
    Standard Base
    Style Options:
    High Back
    Make:
    Universal Items
    Product Type:
    Seats
    Style Options:
    Standard Base
    Type Options:
    High Back
    $990.99 - $1,345.99
    Qty in Cart: 0
    Price:
    $990.99 - $1,345.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Stainless Steel Frame Light Bracket W/ Watermelon Light Hole

    Stainless Steel Frame Light Bracket W/ Watermelon Light Hole

    LEGENDARY

    $38.76 - $48.45
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksLegendary Stainless Steel Straight Frame Light Bracket W/ 1 Watermelon Light HoleStraight Frame Light...
    PPR_299585
    SKU:
    PPR_299585
    Product Type:
    Lighting
    Ready To Ship:
    Yes
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $38.76 - $48.45
    Qty in Cart: 0
    Price:
    $38.76 - $48.45
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit Shackle Hanger For Peterbilt COE & Conventional

    BESTfit Shackle Hanger For Peterbilt COE & Conventional

    BESTFIT TRUCK PARTS

    $99.99 - $242.99
    Protect and enhance your Peterbilt COE or Conventional suspension system with BESTfit Shackle Hangers, designed for multiple mounting options. Available versions include rear of front cast #B11-1033,...
    PPR_299610
    SKU:
    PPR_299610
    Material Options:
    Aluminum
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    $99.99 - $242.99
    Qty in Cart: 0
    Price:
    $99.99 - $242.99
    Subtotal:
  • Driver/Passenger Side Bushing Saddle For Hendrickson Aux Suspension

    Driver/Passenger Side Bushing Saddle For Hendrickson Aux Suspension

    AFTERMARKET

    $151.99 - $166.99
    Choose Option(s) to see description.Fitment** Fits Truck Models W/ Hendrickson Aux SuspensionDriver Side Bushing Saddle Replaces 002679-1, 0026791, R-002679-1, R002679-1, R0026791 For Hendrickson Aux...
    PPR_299578
    SKU:
    PPR_299578
    Height Options:
    14 1/2 Inch
    Width Options:
    5 1/2 Inch
    Product Type:
    Frame & Chassis
    Position:
    Driver Side
    Length Options:
    8 3/4 Inch
    Make:
    Universal Items
    $151.99 - $166.99
    Qty in Cart: 0
    Price:
    $151.99 - $166.99
    Subtotal:
  • Frame Bracket Hendrickson 16-Inch And 17-Inch Ride Heights, 10-Inch Winged Bolt, Top To Align Hole 10 Inch For Hendrickson INTRAAX Suspension

    Frame Bracket Hendrickson 16-Inch And 17-Inch Ride Heights, 10-Inch Winged Bolt, Top To Align Hole 10 Inch For Hendrickson INTRAAX Suspension

    AFTERMARKET

    $386.99 - $387.99
    Choose Option(s) to see description.Fitment** Fits Truck Models W/ Hendrickson INTRAAX SuspensionPassenger Side Frame Bracket Replaces S309602R, S365663R For Hendrickson INTRAAX Suspension10.00 X 6...
    PPR_299574
    SKU:
    PPR_299574
    Height Options:
    10 Inch
    Product Type:
    Frame & Chassis
    Position:
    Passenger Side
    Position:
    Driver Side
    Make:
    Universal Items
    $386.99 - $387.99
    Qty in Cart: 0
    Price:
    $386.99 - $387.99
    Subtotal:
  • Driver/Passenger Side Frame Bracket, Top To Align Hole 8 Inch For Hendrickson-Turner Suspension

    Driver/Passenger Side Frame Bracket, Top To Align Hole 8 Inch For Hendrickson-Turner Suspension

    AFTERMARKET

    $156.99
    Choose Option(s) to see description.Fitment** Fits Truck & Trailer Models W/ Hendrickson-Turner SuspensionPassenger Side Frame Bracket Replaces C200472, S200472 For Hendrickson-Turner Suspension8.00...
    PPR_299579
    SKU:
    PPR_299579
    Product Type:
    Frame & Chassis
    Position:
    Passenger Side
    Position:
    Driver Side
    Make:
    Universal Items
    $156.99
    Qty in Cart: 0
    Price:
    $156.99
    Subtotal:
  • 45 Degree V- Band Elbow For Cummins/Detroit Diesel

    45 Degree V- Band Elbow For Cummins/Detroit Diesel

    POWER PLAY PRODUCTS

    $153.99
    Choose Option(s) to see description.Fitment** Fits Models W/ Cummins & Detroit Diesel Turbochargers** Please Verify Fitment Prior To Ordering **Black 45 Degree V- Band Elbow For Cummins/Detroit...
    PPR_299566
    SKU:
    PPR_299566
    Color:
    White
    Style Options:
    Elbow
    Color:
    Black
    Product Type:
    Engine Parts
    Degree Options:
    45
    Make:
    Universal Items
    $153.99
    Qty in Cart: 0
    Price:
    $153.99
    Subtotal:
  • Frame Bracket Hendrickson 13.5-Inch, 14-Inch And 15-Inch Ride Heights, Top To Align Hole 10 Inch For Hendrickson INTRAAX Suspension

    Frame Bracket Hendrickson 13.5-Inch, 14-Inch And 15-Inch Ride Heights, Top To Align Hole 10 Inch For Hendrickson INTRAAX Suspension

    AFTERMARKET

    $383.99
    Choose Option(s) to see description.Fitment** Fits Truck Models W/ Hendrickson INTRAAX SuspensionDriver Side Frame Bracket Replaces S227761, S309603L For Hendrickson INTRAAX Suspension10.00 Inch...
    PPR_299575
    SKU:
    PPR_299575
    Height Options:
    10 Inch
    Product Type:
    Frame & Chassis
    Position:
    Passenger Side
    Position:
    Driver Side
    Make:
    Universal Items
    $383.99
    Qty in Cart: 0
    Price:
    $383.99
    Subtotal:
  • Driver/Passenger Side Beam Assembly For Hendrickson-Turner Suspension

    Driver/Passenger Side Beam Assembly For Hendrickson-Turner Suspension

    AFTERMARKET

    $1,121.99
    Choose Option(s) to see description.Fitment** Fits Truck Models W/ Hendrickson-Turner SuspensionDriver Side Beam Assembly Replaces 0019071, D0019071, D131031, D142041, R0019071, S131031, S142041 For...
    PPR_299580
    SKU:
    PPR_299580
    Position:
    Driver Side
    Product Type:
    Frame & Chassis
    Position:
    Passenger Side
    Make:
    Universal Items
    $1,121.99
    Qty in Cart: 0
    Price:
    $1,121.99
    Subtotal:
  • Straight Out Mount Exhaust Manifold - 1 Piece For Caterpillar 3406E/C15

    Straight Out Mount Exhaust Manifold - 1 Piece For Caterpillar 3406E/C15

    POWER PLAY PRODUCTS

    $1,326.99 - $1,530.99
    Choose Option(s) to see description.Fitment** Fits Models W/ Caterpillar 3406E/C15 Engines** Please Verify Fitment Prior To Ordering **Bare Finish Straight Out Mount Exhaust Manifold- 1 Piece For...
    PPR_299562
    SKU:
    PPR_299562
    Finish Options:
    Chrome-Plated
    Style Options:
    Caterpillar
    Color:
    Black
    Product Type:
    Engine Parts
    Material Options:
    Ceramic
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $1,326.99 - $1,530.99
    Qty in Cart: 0
    Price:
    $1,326.99 - $1,530.99
    Subtotal:
  • Frame Bracket Hendrickson 16-Inch And 17-Inch Ride Heights, Top To Align Hole 10 Inch, Bolt Size 5/8 Inch For Hendrickson INTRAAX Suspension

    Frame Bracket Hendrickson 16-Inch And 17-Inch Ride Heights, Top To Align Hole 10 Inch, Bolt Size 5/8 Inch For Hendrickson INTRAAX Suspension

    AFTERMARKET

    $395.99
    Choose Option(s) to see description.Fitment** Fits Truck Models W/ Hendrickson INTRAAX SuspensionDriver Side Frame Bracket Replaces S216291, S309605L, S365664L For Hendrickson INTRAAX Suspension10.00...
    PPR_299577
    SKU:
    PPR_299577
    Height Options:
    10 Inch
    Product Type:
    Frame & Chassis
    Position:
    Passenger Side
    Position:
    Driver Side
    Make:
    Universal Items
    $395.99
    Qty in Cart: 0
    Price:
    $395.99
    Subtotal:
  • Frame Bracket Hendrickson 13.5-Inch, 14-Inch And 15-Inch Ride Heights, Top To Align Hole 8 Inch, Bolt Size 5/8 Inch For Hendrickson INTRAAX Suspension

    Frame Bracket Hendrickson 13.5-Inch, 14-Inch And 15-Inch Ride Heights, Top To Align Hole 8 Inch, Bolt Size 5/8 Inch For Hendrickson INTRAAX Suspension

    AFTERMARKET

    $363.99
    Choose Option(s) to see description.Fitment** Fits Truck Models W/ Hendrickson INTRAAX SuspensionDriver Side Frame Bracket Replaces S216281, S309604L For Hendrickson INTRAAX Suspension8.00 Inch Frame...
    PPR_299576
    SKU:
    PPR_299576
    Height Options:
    8 Inch
    Product Type:
    Frame & Chassis
    Position:
    Passenger Side
    Position:
    Driver Side
    Make:
    Universal Items
    $363.99
    Qty in Cart: 0
    Price:
    $363.99
    Subtotal:
  • Frame Bracket Hendrickson 13.5-Inch, 14-Inch And 15-Inch Ride Heights, 8-Inch Winged Bolt, Top To Align Hole 8 Inch For Hendrickson INTRAAX Suspension

    Frame Bracket Hendrickson 13.5-Inch, 14-Inch And 15-Inch Ride Heights, 8-Inch Winged Bolt, Top To Align Hole 8 Inch For Hendrickson INTRAAX Suspension

    AFTERMARKET

    $342.99
    Choose Option(s) to see description.Fitment** Fits Truck Models W/ Hendrickson INTRAAX SuspensionDriver Side Frame Bracket Replaces S210841, S309601L, S365661L For Hendrickson INTRAAX Suspension8.00...
    PPR_299573
    SKU:
    PPR_299573
    Height Options:
    8 Inch
    Product Type:
    Frame & Chassis
    Position:
    Passenger Side
    Position:
    Driver Side
    Make:
    Universal Items
    $342.99
    Qty in Cart: 0
    Price:
    $342.99
    Subtotal:
  • One Piece Exhaust Manifold For Cummins ISX/CM570 Engines

    One Piece Exhaust Manifold For Cummins ISX/CM570 Engines

    POWER PLAY PRODUCTS

    $1,326.99 - $1,530.99
    Choose Option(s) to see description.Fitment** Fits Models W/ Cummins ISX/CM570 Engines** Please Verify Fitment Prior To Ordering **Bare Finish Exhaust Manifold- 1 Piece For Cummins ISX/CM570 Engines1...
    PPR_299567
    SKU:
    PPR_299567
    Color:
    Black
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Material Options:
    Ceramic
    Finish Options:
    Chrome-Plated
    Make:
    Universal Items
    $1,326.99 - $1,530.99
    Qty in Cart: 0
    Price:
    $1,326.99 - $1,530.99
    Subtotal:
  • Standard Airway Buffing Wheels

    Standard Airway Buffing Wheels

    ZEPHYR

    $13.96
    Choose Option(s) to see description.10 Inch Orange Cotton Buffing WheelOrange Buffing Wheel- 10 Inch* High Quality Buffing Wheel* Heavy Cut Clear Dipped (Dipped In A Glue Solution That Hardens The...
    PPR_299554
    SKU:
    PPR_299554
    Color:
    Red
    Product Type:
    Polishing
    Color:
    Orange
    Material Options:
    Cotton
    Diameter Options:
    10 Inch
    Color:
    Yellow
    Make:
    Universal Items
    $13.96
    Qty in Cart: 0
    Price:
    $13.96
    Subtotal:
  • 90 Degree Elbow W/ Mounting Hardware For Caterpillar C15 1995-2003

    90 Degree Elbow W/ Mounting Hardware For Caterpillar C15 1995-2003

    POWER PLAY PRODUCTS

    $214.99
    Choose Option(s) to see description.Fitment** Fits Truck Models W/ Caterpillar C15 Engines 1995 thru 2003Black 90 Degree Elbow W/ Mounting Hardware For Caterpillar C15 1995-200390 Degree Elbow W/...
    PPR_299569
    SKU:
    PPR_299569
    Degree Options:
    90
    Color:
    White
    Color:
    Black
    Style Options:
    Caterpillar
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $214.99
    Qty in Cart: 0
    Price:
    $214.99
    Subtotal:
  • One Piece Exhaust Manifold For Caterpillar C11/C13

    One Piece Exhaust Manifold For Caterpillar C11/C13

    POWER PLAY PRODUCTS

    $1,326.99 - $1,530.99
    Choose Option(s) to see description.Fitment** Fits Models W/ Caterpillar C11/C13 Engines** Please Verify Fitment Prior To Ordering **Bare Finish Exhaust Manifold- 1 Piece For Caterpillar C11/C131...
    PPR_299563
    SKU:
    PPR_299563
    Style Options:
    Caterpillar
    Color:
    Black
    Product Type:
    Engine Parts
    Material Options:
    Ceramic
    Finish Options:
    Chrome-Plated
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $1,326.99 - $1,530.99
    Qty in Cart: 0
    Price:
    $1,326.99 - $1,530.99
    Subtotal:
  • One Piece Low Mount Turbo Exhaust Manifold For Caterpillar 3406E/C15 Engines

    One Piece Low Mount Turbo Exhaust Manifold For Caterpillar 3406E/C15 Engines

    POWER PLAY PRODUCTS

    $1,326.99 - $1,530.99
    Choose Option(s) to see description.Fitment** Fits Models W/ Caterpillar 3406E/C15 Engines** Please Verify Fitment Prior To Ordering **Bare Finish Low Mount Turbo Exhaust Manifold- 1 Piece For...
    PPR_299568
    SKU:
    PPR_299568
    Product Type:
    Engine Parts
    Material Options:
    Ceramic
    Finish Options:
    Chrome-Plated
    Color:
    Black
    Style Options:
    Caterpillar
    Make:
    Universal Items
    $1,326.99 - $1,530.99
    Qty in Cart: 0
    Price:
    $1,326.99 - $1,530.99
    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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