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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
  • Camshaft Repair Half Kit Replaces 4370901

    Camshaft Repair Half Kit Replaces 4370901

    AUTOMANN USA

    $26.98
    Camshaft Repair Half KitMaintain optimal axle function with the Camshaft Repair Half Kit, engineered to replace 4370901. Equipped with six washers, two lock rings, a camshaft bracket, a bushing, and...
    09-05170214
    SKU:
    09-05170214
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $26.98
    Qty in Cart: 0
    Price:
    $26.98
    Subtotal:
  • 16.50 X 7.00 Inch 25K Brake Shoe Kit

    16.50 X 7.00 Inch 25K Brake Shoe Kit

    AFTERMARKET

    $155.99
    Meritor Q Type 16.50 X 7.00 Inch Brake Shoe Kit- 25KKeep your truck braking system performing safely and efficiently with this 16.50 X 7.00 Inch 25K Brake Shoe Kit. Built for reliability, this high...
    09-05170225
    SKU:
    09-05170225
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $155.99
    Qty in Cart: 0
    Price:
    $155.99
    Subtotal:
  • MGM Spring Brake Type 30/30 3.00 Inch Stroke Replaces 3231051, 3231051X

    MGM Spring Brake Type 30/30 3.00 Inch Stroke Replaces 3231051, 3231051X

    AFTERMARKET

    $317.99
    Type 30/30 MGM Spring Brake- 3.00 Inch Stroke* High Quality Spring Brake* 30/30 Type* 3 Inch Stroke Length* 8.0" Minimum In Caged Position Lower Push Rod  - With Molded Nitrile Rubber Air Seal*...
    09-05170228
    SKU:
    09-05170228
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $317.99
    Qty in Cart: 0
    Price:
    $317.99
    Subtotal:
  • 16.50 X 7.00 10 Hole Easy- Roll Brake Drum

    16.50 X 7.00 10 Hole Easy- Roll Brake Drum

    AFTERMARKET

    $403.99
    Easy- Roll 16.50 X 7.00 Inch Brake DrumUpgrade your braking system with the 16.50 X 7.00 10 Hole Easy-Roll Brake Drum, engineered to deliver smooth operation and long-term durability. Cast iron...
    09-05170215
    SKU:
    09-05170215
    Width Options:
    10 5/8 Inch
    Material Options:
    Cast Iron
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $403.99
    Qty in Cart: 0
    Price:
    $403.99
    Subtotal:
  • MGM Spring Brake Type 30/30 2.50 Inch Stroke Replaces EPRO3030STD-WC, EPRO3030STDWC, NT3030STD-WC, NT3030STDWC, 3430951, 3430951X

    MGM Spring Brake Type 30/30 2.50 Inch Stroke Replaces EPRO3030STD-WC, EPRO3030STDWC, NT3030STD-WC, NT3030STDWC, 3430951, 3430951X

    AFTERMARKET

    $286.99
    Type 30/30 MGM Spring Brake- 2.50 Inch Push Rod* High Quality Spring Brake* 30/30 Type* Welded Clevis* 2-1/2 Inch Stroke Length* 2-1/4 Inch In Caged Lower Position Push Rod  - Molded Nitrile Rubber...
    09-05170205
    SKU:
    09-05170205
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $286.99
    Qty in Cart: 0
    Price:
    $286.99
    Subtotal:
  • 15.00 X 4.00 Inch Brake Drum- 10 Hole

    15.00 X 4.00 Inch Brake Drum- 10 Hole

    AFTERMARKET

    $288.99
    10 Hole 15.00 X 4.00 Inch Brake Drum* High Quality Brake Drum* Balanced To 20 Inch - Oz* (10) 1.280 Inch Bolt Holes* For Brake SuRFace Diameter 15 Inch X 4 Inch* 8.60 Inch Overall Width* 4.72 Inch...
    09-05170218
    SKU:
    09-05170218
    Product Type:
    Frame & Chassis
    Width Options:
    8 5/8 Inch
    Make:
    Universal Items
    $288.99
    Qty in Cart: 0
    Price:
    $288.99
    Subtotal:
  • Camshaft Repair Half Kit Replaces CQ66939

    Camshaft Repair Half Kit Replaces CQ66939

    AUTOMANN USA

    $9.24
    Camshaft Repair Half KitOptimize your axle repair with the Camshaft Repair Half Kit, engineered for CQ66939 replacement. Including a washer, two camshaft bushings, three camshaft seals, an extra...
    09-05170213
    SKU:
    09-05170213
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $9.24
    Qty in Cart: 0
    Price:
    $9.24
    Subtotal:
  • MGM Spring Brake Type 30/30 Replaces 3531051X, 3531051

    MGM Spring Brake Type 30/30 Replaces 3531051X, 3531051

    AFTERMARKET

    $335.99
    Type 30/30 MGM Spring Brake- 8.00 Inch Push Rod* High Quality Spring Brake* 30/30 Type* 2.5 Inch Stroke Length* 8.0 Inch Minimum In Caged Position Lower Push Rod  - With Molded Nitrile Rubber Air...
    09-05170210
    SKU:
    09-05170210
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $335.99
    Qty in Cart: 0
    Price:
    $335.99
    Subtotal:
  • Brake Shoe Hardware Kit 142.431780, 142.431180 For Eaton

    Brake Shoe Hardware Kit 142.431780, 142.431180 For Eaton

    AUTOMANN USA

    $14.31
    Brake Shoe Hardware Kit Replaces 70326, E1418, R567502, 78580, E1428A, E1428S, R567006, 19-854Maintain reliable and safe braking with the Brake Shoe Hardware Kit for Eaton, a high-quality kit...
    09-05170189
    SKU:
    09-05170189
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $14.31
    Qty in Cart: 0
    Price:
    $14.31
    Subtotal:
  • 16.50 X 7.00 Inch 10 Hole Brake Drum Replaces 03123397002, 10001802, 107885, 123397, 34 02, 34-02, 3402, 66873, 66873F

    16.50 X 7.00 Inch 10 Hole Brake Drum Replaces 03123397002, 10001802, 107885, 123397, 34 02, 34-02, 3402, 66873, 66873F

    AFTERMARKET

    $438.99
    10 Hole 16.50 X 7.00 Inch Brake Drum* High Quality Brake Drum* (10) 1 Inch Bolt Holes* For Brake SuRFace Diameter 16.5 Inch X 7 Inch* 10.30 Inch Overall Width* 7.52 Inch Brake SuRFace Flat* 8.78 Inch...
    09-05170197
    SKU:
    09-05170197
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $438.99
    Qty in Cart: 0
    Price:
    $438.99
    Subtotal:
  • Camshaft Repair Half Kit Replaces E9791HD, S21181, R009791HD, R615022

    Camshaft Repair Half Kit Replaces E9791HD, S21181, R009791HD, R615022

    AUTOMANN USA

    $31.48
    Camshaft Repair Half KitRestore your truck's axle assembly with the Camshaft Repair Half Kit, designed for OEM replacements including E9791HD, S21181, R009791HD, and R615022. Complete with washers,...
    09-05170211
    SKU:
    09-05170211
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $31.48
    Qty in Cart: 0
    Price:
    $31.48
    Subtotal:
  • Brake Shoe Hardware Kit Replaces 52243, E1887AHD. E1887ASHD, E1887HD, E4311EHDB, E4311HD, MBCBK0030, CQ67319, R507002, R507002BK, R507002BULK, 241SS, 24A

    Brake Shoe Hardware Kit Replaces 52243, E1887AHD. E1887ASHD, E1887HD, E4311EHDB, E4311HD, MBCBK0030, CQ67319, R507002, R507002BK, R507002BULK, 241SS, 24A

    AUTOMANN USA

    $15.34
    Brake Shoe Hardware Kit 142.431780, 142.431180Upgrade your brakes with confidence using the Brake Shoe Hardware Kit, a premium replacement for numerous OEM models including 52243, E1887HD, E4311HD,...
    09-05170190
    SKU:
    09-05170190
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $15.34
    Qty in Cart: 0
    Price:
    $15.34
    Subtotal:
  • 1/2 X 3/8 Inch Brass Hose Coupling W/ Spring Replaces E8593

    1/2 X 3/8 Inch Brass Hose Coupling W/ Spring Replaces E8593

    AUTOMANN USA

    $14.07
    1/2 X 3/8 Inch Hose Coupling W/ Spring* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Made Of Brass* 1/2 Inch Inner Diameter Hose End* 3/8...
    09-05170178
    SKU:
    09-05170178
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $14.07
    Qty in Cart: 0
    Price:
    $14.07
    Subtotal:
  • 15.00 X 4.00 10 Hole Brake Drum Replaces 3667, 3667X, 65542, 65542B

    15.00 X 4.00 10 Hole Brake Drum Replaces 3667, 3667X, 65542, 65542B

    AFTERMARKET

    $489.99
    10 Hole 15.00 X 4.00 Brake Drum* High Quality Brake Drum* Balanced To 20 Inch - Oz* (10) 0.810 Inch Bolt Holes* For Brake SuRFace Diameter 15 Inch X 4 Inch* 8.74 Inch Overall Width* 4.50 Inch Brake...
    09-05170196
    SKU:
    09-05170196
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $489.99
    Qty in Cart: 0
    Price:
    $489.99
    Subtotal:
  • Brake Shoe Hardware Kit 142.422381, 142.431781, 142.431181, 142.467480 For Eaton

    Brake Shoe Hardware Kit 142.422381, 142.431781, 142.431181, 142.467480 For Eaton

    AUTOMANN USA

    $20.94
    Brake Shoe Hardware Kit Replaces E3801, CQ69004, E507003, R507077, 241AFKeep your braking system operating at peak performance with the Brake Shoe Hardware Kit for Eaton, a high-quality kit designed...
    09-05170188
    SKU:
    09-05170188
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $20.94
    Qty in Cart: 0
    Price:
    $20.94
    Subtotal:
  • 16.50 X 5.00 Inch 12K RSD Brake Shoe Kit Replaces 314146, R507094, 818278, E10197, E5479A, R567503, 19-915

    16.50 X 5.00 Inch 12K RSD Brake Shoe Kit Replaces 314146, R507094, 818278, E10197, E5479A, R567503, 19-915

    AFTERMARKET

    $177.99
    16.50 X 5.00 Inch 12K RSD Brake Shoe Kit* High Quality Brake Shoe Box Kit* Eaton ES2 Type* Open Anchor End* Open Roller End* Double Web* 12K Lbs RSD Value* Kit Includes:  - (2) Lined Brake Shoes  -...
    09-05170179
    SKU:
    09-05170179
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $177.99
    Qty in Cart: 0
    Price:
    $177.99
    Subtotal:
  • 3/8 X 1/4 Inch Brass Hose Coupling W/ Spring Replaces E8590

    3/8 X 1/4 Inch Brass Hose Coupling W/ Spring Replaces E8590

    AUTOMANN USA

    $7.37
    3/8 X 1/4 Inch Hose Coupling W/ Spring* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Made Of Brass* 3/8 Inch Inner Diameter Hose End* 1/4...
    09-05170174
    SKU:
    09-05170174
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $7.37
    Qty in Cart: 0
    Price:
    $7.37
    Subtotal:
  • 15.00 X 4.00 Inch 20K Brake Shoe Kit Replaces KSF5571308E

    15.00 X 4.00 Inch 20K Brake Shoe Kit Replaces KSF5571308E

    AFTERMARKET

    $105.99
    15.00 X 4.00 Inch 20K Brake Shoe Kit* High Quality Brake Shoe Box Kit* Eaton ES2 Type* Open Anchor End* Open Roller End* Single Web* 20K Lbs Value* Kit Includes:  - (2) Lined Brake Shoes  - (1) 7...
    09-05170187
    SKU:
    09-05170187
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $105.99
    Qty in Cart: 0
    Price:
    $105.99
    Subtotal:
  • 1/2 X 1/2 Inch Brass Hose Coupling W/ Spring Replaces E8594

    1/2 X 1/2 Inch Brass Hose Coupling W/ Spring Replaces E8594

    AUTOMANN USA

    $13.67
    1/2 X 1/2 Inch Hose Coupling W/ SpringKeep your air brake system functioning properly with the 1/2 x 1/2 Inch Brass Hose Coupling with Spring. Built to replace E8594, it features a secure 1/2-inch...
    09-05170177
    SKU:
    09-05170177
    Material Options:
    Brass
    Diameter Options:
    1/2 Inch
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $13.67
    Qty in Cart: 0
    Price:
    $13.67
    Subtotal:
  • 3/8 X 3/8 Inch Brass Hose Coupling W/ Spring Replaces E8591

    3/8 X 3/8 Inch Brass Hose Coupling W/ Spring Replaces E8591

    AUTOMANN USA

    $8.11
    3/8 X 3/8 Inch Hose Coupling W/ Spring* High Quality Hose Coupling* Fitting Type: Air Brake Hose* Connection: Hose Inner Diameter To Male NPT* Made Of Brass* 3/8 Inch Inner Diameter Hose End* 3/8...
    09-05170175
    SKU:
    09-05170175
    Diameter Options:
    3/8 Inch
    Product Type:
    Air, Electrical, & Safety
    Material Options:
    Brass
    Make:
    Universal Items
    $8.11
    Qty in Cart: 0
    Price:
    $8.11
    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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