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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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  • Stainless Steel Auxiliary Transmission Oil Temperature Gauge Emblem For Peterbilt 359 & 370

    Stainless Steel Auxiliary Transmission Oil Temperature Gauge Emblem For Peterbilt 359 & 370

    GRAND GENERAL

    $2.56
    Half Moon Auxiliary Transmission Oil Temperature Gauge EmblemThe Stainless Steel Auxiliary Transmission Oil Temperature Gauge Emblem is a must-have upgrade for Peterbilt 359 and 370 owners who demand...
    01-1502106
    SKU:
    01-1502106
    Product Type:
    Interior
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    $2.56
    Qty in Cart: 0
    Price:
    $2.56
    Subtotal:
  • On Sale
    Limited Quantity Available
    5 Inch Galvanized Steel Sleeper Chop Top Window Trim For Peterbilt 379, 388 & 389

    5 Inch Galvanized Steel Sleeper Chop Top Window Trim For Peterbilt 379, 388 & 389

    PHOENIX DESIGN

    Now: $106.32
    Was: $178.99
    5 Inch Sleeper Chop Top Window TrimFor truckers who refuse to compromise on quality, the 5 Inch Galvanized Steel Sleeper Chop Top Window Trim delivers unbeatable protection and visual appeal...
    01-101300035
    SKU:
    01-101300035
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    Height Options:
    5 Inch
    Material Options:
    Steel
    Finish Options:
    Galvanized
    Style Options:
    Chopped
    Make:
    Peterbilt
    Now: $106.32
    Was: $178.99
    Qty in Cart: 0
    Price:
    Now: $106.32
    Was: $178.99
    Subtotal:
  • 3.5 X 70 Inch Stainless Steel Sleeper Panel W/ 16 Round 2 Inch Light Holes For Peterbilt 379

    3.5 X 70 Inch Stainless Steel Sleeper Panel W/ 16 Round 2 Inch Light Holes For Peterbilt 379

    TRUX ACCESSORIES

    $243.99
    3.5 X 70 Inch Sleeper Panel W/ 16 Round 2 Inch Light HolesBring strength, style, and versatility to your Peterbilt 379 with this 3.5 x 70-inch stainless steel sleeper panel. Each panel includes 8...
    01-1012040H001
    SKU:
    01-1012040H001
    Height Options:
    3 1/2 Inch
    Material Options:
    Stainless Steel
    Light Options:
    Without Lights
    Product Type:
    Exterior
    Length Options:
    70 Inch
    Make:
    Peterbilt
    $243.99
    Qty in Cart: 0
    Price:
    $243.99
    Subtotal:
  • 3 X 44 Inch Stainless Steel Cab Panel For Peterbilt 379 & 389

    3 X 44 Inch Stainless Steel Cab Panel For Peterbilt 379 & 389

    TWELVE GAUGE

    $294.99
    3 X 44 Inch Cab PanelUpgrade your Peterbilt 379 or 389 with this high-quality 3 x 44-inch stainless steel cab panel, designed to provide both durability and visual appeal. Crafted from 304 stainless...
    01-101201154
    SKU:
    01-101201154
    Product Type:
    Exterior
    Height Options:
    3 Inch
    Length Options:
    44 Inch
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    $294.99
    Qty in Cart: 0
    Price:
    $294.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Roadworks 6 X 48 Inch Blank Stainless Steel Sleeper Panel W/ Full Wrap For Peterbilt 359, 378, 379, 388 & 389/Glider

    Roadworks 6 X 48 Inch Blank Stainless Steel Sleeper Panel W/ Full Wrap For Peterbilt 359, 378, 379, 388 & 389/Glider

    ROADWORKS

    Now: $229.17
    Was: $386.99
    6 X 48 Inch Blank Sleeper Panel W/ Full Wrap By Roadworks Fits Peterbilt 359, 378, 379, 388 & 389* High Quality Sleeper Panels* Made Of Stainless Steel* Full Wrap Design* Blank Style (No Light...
    01-101200688
    SKU:
    01-101200688
    Ready To Ship:
    Yes
    Height Options:
    6 Inch
    Length Options:
    48 Inch
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Exterior
    Now: $229.17
    Was: $386.99
    Qty in Cart: 0
    Price:
    Now: $229.17
    Was: $386.99
    Subtotal:
  • 3 Inch Stainless Steel Cab Panel 12 Round 3/4 Inch Light Holes For Peterbilt 379, 388 & 389

    3 Inch Stainless Steel Cab Panel 12 Round 3/4 Inch Light Holes For Peterbilt 379, 388 & 389

    PHOENIX DESIGN

    $257.99
    3 Inch Cab Panel 12 Round 3/4 Inch Light HolesEnhance the look and functionality of your Peterbilt 379, 388, or 389 with these 3 Inch Stainless Steel Cab Panels. Each panel features 12 round 3/4 inch...
    01-091201834
    SKU:
    01-091201834
    Product Type:
    Exterior
    Height Options:
    3 Inch
    Light Options:
    Without Lights
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    $257.99
    Qty in Cart: 0
    Price:
    $257.99
    Subtotal:
  • Windshield Wiper Arm Replaces 45-23 For Peterbilt

    Windshield Wiper Arm Replaces 45-23 For Peterbilt

    OPP - ORIGINAL PARTS PROGRAM

    $28.18
    Windshield Wiper Arm Fits PeterbiltKeep your Peterbilt ready for any weather with this high-quality Windshield Wiper Arm, replacement for 45-23. Built for durability and reliability, it features a 24...
    01-0911049
    SKU:
    01-0911049
    Product Type:
    Exterior
    Length Options:
    14 Inch
    Color:
    Gray
    $28.18
    Qty in Cart: 0
    Price:
    $28.18
    Subtotal:
  • Stainless Steel Front Air Cleaner Light Panel W/ 6 Amber Watermelon Lights For Peterbilt 589

    Stainless Steel Front Air Cleaner Light Panel W/ 6 Amber Watermelon Lights For Peterbilt 589

    VALLEY CHROME PLATING

    $184.99
    Front Air Cleaner Light Panel W/ 6 Amber Watermelon Lights Fits Peterbilt 589Improve visibility and style on your Peterbilt 589 with these Stainless Steel Front Air Cleaner Light Panels, featuring...
    01-09051149
    SKU:
    01-09051149
    Product Type:
    Exterior
    Style Options:
    Watermelon
    Light Options:
    With Lights
    Location:
    Made In USA
    Color:
    Amber
    Material Options:
    Stainless Steel
    Size Options:
    18 Gauge
    Make:
    Universal Items
    $184.99
    Qty in Cart: 0
    Price:
    $184.99
    Subtotal:
  • 6 Inch Stainless Steel Exhaust Clamp W/ Straight Bracket For Peterbilt

    6 Inch Stainless Steel Exhaust Clamp W/ Straight Bracket For Peterbilt

    TRUX ACCESSORIES

    $111.99
    6 Inch Exhaust Clamp W/ Straight BracketEnsure your Peterbilt's exhaust system stays secure with the 6 Inch Stainless Steel Exhaust Clamp featuring a straight mounting bracket. Constructed from...
    01-0800602
    SKU:
    01-0800602
    Diameter Options:
    6 Inch
    Height Options:
    3 Inch
    Product Type:
    Exhaust
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    $111.99
    Qty in Cart: 0
    Price:
    $111.99
    Subtotal:
  • BESTfit Aluminum Fuel Tank 60 Gallon- 26 X 27 Inch- Center Fill W/ New Style Manifold For Peterbilt

    BESTfit Aluminum Fuel Tank 60 Gallon- 26 X 27 Inch- Center Fill W/ New Style Manifold For Peterbilt

    BESTFIT TRUCK PARTS

    $782.99
    60 Gallon 26 X 27 Inch Aluminum Fuel Tank- Center Fill W/ New Style Manifold By BESTfit Fits PeterbiltThe 60 Gallon Center Fill Aluminum Fuel Tank, measuring 26 inches in diameter and 27 inches in...
    01-06006000
    SKU:
    01-06006000
    Product Type:
    Fuel Tanks
    Material Options:
    Aluminum
    Capacity:
    60 Gallons
    Position:
    Center Fill
    Diameter Options:
    26 Inch
    Length Options:
    27 Inch
    Make:
    Peterbilt
    Type Options:
    Center Fill
    Ready To Ship:
    Yes
    $782.99
    Qty in Cart: 0
    Price:
    $782.99
    Subtotal:
  • 3 Inch Stainless Steel Lower Coolant Elbow Tube Replaces 07-05849M000 For Peterbilt 379

    3 Inch Stainless Steel Lower Coolant Elbow Tube Replaces 07-05849M000 For Peterbilt 379

    B & H TUBES

    $112.99
    304 Stainless Steel Lower Coolant Elbow TubeThis 3 Inch Stainless Steel Lower Coolant Elbow Tube is the perfect replacement for OEM part 07-05849M000, specifically designed for Peterbilt 379 models...
    01-070200016
    SKU:
    01-070200016
    Product Type:
    Engine Parts
    Diameter Options:
    3 Inch
    Material Options:
    Stainless Steel
    Position:
    Lower
    Make:
    Peterbilt
    $112.99
    Qty in Cart: 0
    Price:
    $112.99
    Subtotal:
  • Herd Aluminum Big Tex 4 Post Grille Guard W/ Horizontal Tubes, Slam Latch & Radar Cutouts For Peterbilt 378 & 379 SFA 1987-2007

    Herd Aluminum Big Tex 4 Post Grille Guard W/ Horizontal Tubes, Slam Latch & Radar Cutouts For Peterbilt 378 & 379 SFA 1987-2007

    HERD BUMPERS

    $5,601.42
    Herd Big Tex 4 Horizontal Post Grille GuardProtect your rig with strength and style using the HERD Aluminum Big Tex 4 Post Grille Guard, designed for Peterbilt trucks. Built from premium-grade...
    01-013000329
    SKU:
    01-013000329
    Light Options:
    Without Lights
    Finish Options:
    Mirror
    Material Options:
    Aluminum
    Product Type:
    Bumpers
    Height Options:
    18 Inch
    Style Options:
    Big Tex
    Make:
    Peterbilt
    $5,601.42
    Qty in Cart: 0
    Price:
    $5,601.42
    Subtotal:
  • Stainless Steel 2 Plate Hinged License Plate Holder For Peterbilt 379

    Stainless Steel 2 Plate Hinged License Plate Holder For Peterbilt 379

    BORES

    $84.99
    304 Stainless Steel 2 Plate Hinged License Plate HolderEnsure your Peterbilt 379 stands out with the Stainless Steel 2-Plate Hinged License Plate Holder, built for toughness and convenience. This...
    01-010700016
    SKU:
    01-010700016
    Material Options:
    Stainless Steel
    Height Options:
    8 Inch
    Product Type:
    Bumpers
    Make:
    Peterbilt
    Width Options:
    27 Inch
    $84.99
    Qty in Cart: 0
    Price:
    $84.99
    Subtotal:
  • Stainless Steel Eaton Fuller 10 Speed Overdrive Shift Pattern

    Stainless Steel Eaton Fuller 10 Speed Overdrive Shift Pattern

    ROCKWOOD

    $20.01
    304 Stainless Steel Eaton Fuller 10 Speed Overdrive Shift Pattern* High Quality Shift Pattern* For Eaton Fuller 10 Speed Overdrive (RTO)* 304 Stainless Steel* Sold Individually* Warranty On Shift...
    U20401
    SKU:
    U20401
    Material Options:
    Stainless Steel
    Product Type:
    Interior
    Make:
    Universal Items
    $20.01
    Qty in Cart: 0
    Price:
    $20.01
    Subtotal:
  • Chrome Plated Aluminum Window Regulator Crank Handle For Peterbilt

    Chrome Plated Aluminum Window Regulator Crank Handle For Peterbilt

    ROCKWOOD

    $97.99
    Window Regulator Crank Handle- Square Shaft* High Quality Window Regulator Crank Handle* Fits Square Shaft With Flange Billet* Aluminum Chrome Plated With Chrome Screw* Sold Individually* Warranty On...
    UDA420
    SKU:
    UDA420
    Finish Options:
    Chrome-Plated
    Product Type:
    Interior
    Location:
    Made In USA
    Make:
    Kenworth
    Make:
    Western Star
    Make:
    Peterbilt
    Material Options:
    Aluminum
    Ready To Ship:
    Yes
    $97.99
    Qty in Cart: 0
    Price:
    $97.99
    Subtotal:
  • Electric Fan Shroud For Rigmaster Generator

    Electric Fan Shroud For Rigmaster Generator

    RIGMASTER

    $168.99
    Electric Fan Shroud* High Quality Electric Fan Shroud* For Rigmaster Generator* Sold Individually* Warranty On Electric Fan Shrouds Against Defects In Workmanship & Material From Date Of Purchase***...
    RP1000143
    SKU:
    RP1000143
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $168.99
    Qty in Cart: 0
    Price:
    $168.99
    Subtotal:
  • Chrome Engine Start Face Nut For Peterbilt

    Chrome Engine Start Face Nut For Peterbilt

    ROCKWOOD

    $12.11
    Engine Start Face Nut* High Quality Engine Start Face Nut* Chrome Plated Finish* Sold Individually* Warranty On Engine Start Face Nuts Against Defects In Workmanship & Material From Date Of...
    RH13C
    SKU:
    RH13C
    Finish Options:
    Chrome-Plated
    Product Type:
    Engine Parts
    Material Options:
    Steel
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $12.11
    Qty in Cart: 0
    Price:
    $12.11
    Subtotal:
  • Stainless Steel Ashtray Cover W/ E2 Flourish Design For Peterbilt

    Stainless Steel Ashtray Cover W/ E2 Flourish Design For Peterbilt

    ROCKWOOD

    $26.25
    E2 Flourish Engraved Design 304 Stainless Steel Ashtray Cover* High Quality Ashtray Cover* Engraved With E2 Flourish Design* 304 Stainless Steel* Sold Individually* Warranty On Ashtray Covers Against...
    PT114E2
    SKU:
    PT114E2
    Material Options:
    Stainless Steel
    Product Type:
    Interior
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    $26.25
    Qty in Cart: 0
    Price:
    $26.25
    Subtotal:
  • Radiator Mount Bushing For Rigmaster Generator

    Radiator Mount Bushing For Rigmaster Generator

    RIGMASTER

    $2.03
    Radiator Mount Bushing* High Quality Radiator Mount Bushing* For Rigmaster Generator* Sold Individually* Warranty On Radiator Mount Bushings Against Defects In Workmanship & Material From Date Of...
    RP12048
    SKU:
    RP12048
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $2.03
    Qty in Cart: 0
    Price:
    $2.03
    Subtotal:
  • Stainless Steel Eaton Fuller 15 Speed Overdrive Shift Pattern

    Stainless Steel Eaton Fuller 15 Speed Overdrive Shift Pattern

    ROCKWOOD

    $20.19
    304 Stainless Steel Eaton Fuller 15 Speed Overdrive Shift Pattern* High Quality Shift Pattern* For Eaton Fuller 15 Speed Overdrive (RTO)* 304 Stainless Steel* Sold Individually* Warranty On Shift...
    R20467
    SKU:
    R20467
    Material Options:
    Stainless Steel
    Product Type:
    Interior
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $20.19
    Qty in Cart: 0
    Price:
    $20.19
    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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