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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
  • Ash Gray Door Panels W/ Passenger Side Lower Rectangular Window For Peterbilt 379, 389 & 389 Glider 2006 & Newer

    Ash Gray Door Panels W/ Passenger Side Lower Rectangular Window For Peterbilt 379, 389 & 389 Glider 2006 & Newer

    TRUCK-N AWESOME

    $804.99
    Door Panels With Rectangular Lower Window On Passenger Door Fits PeterbiltGive your Peterbilt 379 a fresh interior upgrade with these ash gray door panels with passenger side lower window. Finished...
    01-15230215
    SKU:
    01-15230215
    Shape Options:
    Rectangular
    Color:
    Gray
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Product Type:
    Interior
    Make:
    Peterbilt
    $804.99
    Qty in Cart: 0
    Price:
    $804.99
    Subtotal:
  • HVAC Blower Motor Switch For Peterbilt 379 & 384 Replaces Q216012, Q21-6012

    HVAC Blower Motor Switch For Peterbilt 379 & 384 Replaces Q216012, Q21-6012

    DAYTON / DORMAN

    $79.99
    HVAC Blower Motor Switch Replaces Q216012, Q21-6012 Fits Peterbilt 379 & 384Maintain comfortable cab conditions with this HVAC Blower Motor Switch, designed to replace Q216012 and Q21-6012 in...
    01-150300044
    SKU:
    01-150300044
    Product Type:
    Interior
    Make:
    Peterbilt
    $79.99
    Qty in Cart: 0
    Price:
    $79.99
    Subtotal:
  • FREE SHIPPING OVER $249
    RoadWorks Stainless Steel Air Valve & Ash Tray Surround Trim For Peterbilt

    RoadWorks Stainless Steel Air Valve & Ash Tray Surround Trim For Peterbilt

    ROADWORKS

    $49.34
    SS Air Valve & Ash Tray Surround Trim By Turnpike Truck Trim Fits Peterbilt* High Quality Dash Trim * Made Of Stainless Steel* For Air Valve And Ash Tray * Made In USA* Sold Individually* Warranty On...
    01-1504105
    SKU:
    01-1504105
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Product Type:
    Interior
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    $49.34
    Qty in Cart: 0
    Price:
    $49.34
    Subtotal:
  • Aluminum Bullet Casing Toggle Switch- 2 Pack For Peterbilt

    Aluminum Bullet Casing Toggle Switch- 2 Pack For Peterbilt

    UNITED PACIFIC

    $11.53
    2 Pack of Aluminum Bullet Casing Toggle SwitchesAdd a bold custom touch to your cab with this Aluminum Bullet Casing Toggle Switch 2-Pack designed for Peterbilt trucks. Featuring a distinctive bullet...
    01-1501069
    SKU:
    01-1501069
    Material Options:
    Aluminum
    Product Type:
    Interior
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    $11.53
    Qty in Cart: 0
    Price:
    $11.53
    Subtotal:
  • FREE SHIPPING OVER $249
    2 Inch 7 Diode Round Marker Light W/ Clear Lens- Color Options

    2 Inch 7 Diode Round Marker Light W/ Clear Lens- Color Options

    TRUX ACCESSORIES

    $8.89
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks2 Inch 7 Diode Round Marker Light Amber LED / Clear LensLED Clear/Amber Marker Light 2 Inch Round W/ 7...
    PPR_300741
    SKU:
    PPR_300741
    Product Type:
    Lighting
    Color:
    Amber
    Color:
    Red/Clear
    Material Options:
    Plastic/Poly
    Height Options:
    1 Inch
    Width Options:
    1 Inch
    Truck Class:
    Universal
    Diameter Options:
    2 Inch
    Shape Options:
    Round
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $8.89
    Qty in Cart: 0
    Price:
    $8.89
    Subtotal:
  • VC 18 Inch Chrome Texas Boxed End Bumper W/ Tow Holes & Light Hole Options For Peterbilt 378 & 379

    VC 18 Inch Chrome Texas Boxed End Bumper W/ Tow Holes & Light Hole Options For Peterbilt 378 & 379

    VALLEY CHROME PLATING

    $898.99 - $951.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 378 1988 thru 2007* Fits Peterbilt 379 1987 thru 200718 Inch Chrome Texas Boxed End Bumper W/ Tow, 36 Rnd 3/4 Inch Light Holes On Face & 1...
    PPR_300707
    SKU:
    PPR_300707
    Location:
    Made In USA
    Light Options:
    Without Lights
    Style Options:
    Texas Boxed End
    Size Options:
    7 Gauge
    Height Options:
    18 Inch
    Material Options:
    Steel
    Product Type:
    Bumpers
    Finish Options:
    Chrome-Plated
    Make:
    Peterbilt
    $898.99 - $951.99
    Qty in Cart: 0
    Price:
    $898.99 - $951.99
    Subtotal:
  • VC 20 Inch Chrome Blind Mount American Eagle Rolled End Bumper W/ Frenched In License Plate Holes & Light Hole Options For Freightliner, Kenworth & Peterbilt

    VC 20 Inch Chrome Blind Mount American Eagle Rolled End Bumper W/ Frenched In License Plate Holes & Light Hole Options For Freightliner, Kenworth & Peterbilt

    VALLEY CHROME PLATING

    $1,982.99 - $2,189.99
    Choose Option(s) to see description.Fitment* Fits Freightliner Classic 120 1990 thru 1999* Fits Freightliner Classic XL 132 1990 thru 1999* Fits Freightliner FLC120 1984 thru 1987** Fits FLC120 SFA...
    PPR_300703
    SKU:
    PPR_300703
    Finish Options:
    Chrome-Plated
    Height Options:
    20 Inch
    Material Options:
    Steel
    Product Type:
    Bumpers
    Truck Class:
    Heavy Duty
    Type Options:
    Blind Mount
    Location:
    Made In USA
    Style Options:
    American Eagle Rolled End
    Size Options:
    10 Gauge
    Light Options:
    Without Lights
    Make:
    Kenworth
    Make:
    Peterbilt
    Make:
    Freightliner
    Make:
    Mack
    $1,982.99 - $2,189.99
    Qty in Cart: 0
    Price:
    $1,982.99 - $2,189.99
    Subtotal:
  • VC 22 Inch Blind Mount American Eagle Boxed End Bumper W/ Light Hole Options For Freightliner, Kenworth & Peterbilt

    VC 22 Inch Blind Mount American Eagle Boxed End Bumper W/ Light Hole Options For Freightliner, Kenworth & Peterbilt

    VALLEY CHROME PLATING

    $1,527.99 - $1,580.99
    Choose Option(s) to see description.Fitment* Fits Freightliner Classic 120 2000 thru 2002** Fits Classic 2000-2002 SBA Only* Fits Freightliner Classic XL 132 1990 thru 1999* Fits Freightliner FLT...
    PPR_300702
    SKU:
    PPR_300702
    Height Options:
    22 Inch
    Material Options:
    Steel
    Finish Options:
    Chrome-Plated
    Style Options:
    American Eagle Boxed End
    Size Options:
    10 Gauge
    Type Options:
    Blind Mount
    Light Options:
    Without Lights
    Location:
    Made In USA
    Product Type:
    Bumpers
    Truck Class:
    Heavy Duty
    Make:
    Mack
    Make:
    Peterbilt
    Make:
    Kenworth
    Make:
    Freightliner
    $1,527.99 - $1,580.99
    Qty in Cart: 0
    Price:
    $1,527.99 - $1,580.99
    Subtotal:
  • Pearl Blue Engraved Flat Top Brake Knob For Threaded Dash Air Brake Valve

    Pearl Blue Engraved Flat Top Brake Knob For Threaded Dash Air Brake Valve

    TWISTED SHIFTERZ

    $85.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksPearl Blue Engraved Tractor Flat Top Brake Knob For Threaded Dash Air Brake ValvePearl Blue Flat Top...
    PPR_300699
    SKU:
    PPR_300699
    Product Type:
    Interior
    Material Options:
    Aluminum
    Location:
    Made In USA
    Color:
    Blue
    Style Options:
    Thread On
    Make:
    Universal Items
    $85.99
    Qty in Cart: 0
    Price:
    $85.99
    Subtotal:
  • VC 18 Inch Chrome Blind Mount Texas Boxed End Bumper W/ Cut Out Options For Peterbilt 378 & 379

    VC 18 Inch Chrome Blind Mount Texas Boxed End Bumper W/ Cut Out Options For Peterbilt 378 & 379

    VALLEY CHROME PLATING

    $1,004.99 - $1,111.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 378 1988 thru 2007* Fits Peterbilt 379 1987 thru 200718 Inch Chrome Blind Mount Texas Boxed End Bumper W/ Tow, License Plate Holes & 1 Rnd...
    PPR_300709
    SKU:
    PPR_300709
    Height Options:
    18 Inch
    Light Options:
    Without Lights
    Product Type:
    Bumpers
    Size Options:
    7 Gauge
    Type Options:
    Blind Mount
    Finish Options:
    Chrome-Plated
    Location:
    Made In USA
    Material Options:
    Steel
    Style Options:
    Texas Boxed End
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    $1,004.99 - $1,111.99
    Qty in Cart: 0
    Price:
    $1,004.99 - $1,111.99
    Subtotal:
  • VC 18 Inch Chrome Economy Texas Boxed End Bumper W/ Cut Out Options For Peterbilt 378 & 379

    VC 18 Inch Chrome Economy Texas Boxed End Bumper W/ Cut Out Options For Peterbilt 378 & 379

    VALLEY CHROME PLATING

    $792.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 378 1988 thru 2007* Fits Peterbilt 379 1987 thru 200718 Inch Chrome Economy Texas Boxed End Bumper W/ Mounting Holes For Peterbilt 378 &...
    PPR_300708
    SKU:
    PPR_300708
    Location:
    Made In USA
    Material Options:
    Steel
    Size Options:
    7 Gauge
    Style Options:
    Standard Boxed End
    Finish Options:
    Chrome-Plated
    Product Type:
    Bumpers
    Height Options:
    18 Inch
    Style Options:
    Texas Boxed End
    Size Options:
    10 Gauge
    Make:
    Peterbilt
    $792.99
    Qty in Cart: 0
    Price:
    $792.99
    Subtotal:
  • VC 22 Inch Chrome Blind Mount Texas Boxed End Bumper W/ Light Options For Freightliner, Kenworth & Peterbilt

    VC 22 Inch Chrome Blind Mount Texas Boxed End Bumper W/ Light Options For Freightliner, Kenworth & Peterbilt

    VALLEY CHROME PLATING

    $1,104.99
    Choose Option(s) to see description.Fitment* Fits Freightliner Classic 120 2000 thru 2002** Fits Classic 2000-2002 SBA Only* Fits Freightliner Classic XL 132 1990 thru 1999* Fits Freightliner FLT...
    PPR_300701
    SKU:
    PPR_300701
    Light Options:
    Without Lights
    Style Options:
    Texas Boxed End
    Size Options:
    10 Gauge
    Location:
    Made In USA
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Height Options:
    22 Inch
    Finish Options:
    Chrome-Plated
    Product Type:
    Bumpers
    Type Options:
    Blind Mount
    Make:
    Mack
    Make:
    Kenworth
    Make:
    Freightliner
    Make:
    Peterbilt
    $1,104.99
    Qty in Cart: 0
    Price:
    $1,104.99
    Subtotal:
  • 2.125 Inch Gray Engraved Brake Knob For Threaded Dash Air Brake Valve For Threaded Dash Air Brake Valve

    2.125 Inch Gray Engraved Brake Knob For Threaded Dash Air Brake Valve For Threaded Dash Air Brake Valve

    TWISTED SHIFTERZ

    $59.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks2.125 Inch Gray Engraved Tractor Brake Knob For Threaded Dash Air Brake Valve2.125 Inch Gray Brake Knob...
    PPR_300700
    SKU:
    PPR_300700
    Diameter Options:
    2 1/8 Inch
    Location:
    Made In USA
    Shape Options:
    Round
    Style Options:
    Thread On
    Material Options:
    Aluminum
    Color:
    Gray
    Product Type:
    Interior
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $59.99
    Qty in Cart: 0
    Price:
    $59.99
    Subtotal:
  • 20 Inch Chrome 45 Degree Mitered End Roadrunner Bumper W/ Frenched In License Plate Holes For Peterbilt 357 & 378 SFA, 379

    20 Inch Chrome 45 Degree Mitered End Roadrunner Bumper W/ Frenched In License Plate Holes For Peterbilt 357 & 378 SFA, 379

    VALLEY CHROME PLATING

    $1,114.99
    Valley Chrome 20 Inch 45 Degree Mitered End Roadrunner Bumper W/ Frenched In License Plate Holes Fits Peterbilt 378 & 379Boost both protection and curb appeal with this 20 Inch Chrome 45 Degree...
    HCXXXX114FL01UST
    SKU:
    HCXXXX114FL01UST
    Degree Options:
    45
    Material Options:
    Steel
    Location:
    Made In USA
    Type Options:
    Blind Mount
    Style Options:
    Texas Mitered End
    Finish Options:
    Chrome-Plated
    Size Options:
    10 Gauge
    Product Type:
    Bumpers
    Height Options:
    20 Inch
    Make:
    Peterbilt
    $1,114.99
    Qty in Cart: 0
    Price:
    $1,114.99
    Subtotal:
  • 20 Inch Chrome Texas Boxed End Bumper W/ Tow, 18 Rnd 3/4 Inch Light & Frenched In License Plate Holes For Peterbilt 378 & 379

    20 Inch Chrome Texas Boxed End Bumper W/ Tow, 18 Rnd 3/4 Inch Light & Frenched In License Plate Holes For Peterbilt 378 & 379

    VALLEY CHROME PLATING

    $959.99
    Valley Chrome 20 Inch Texas Boxed End Bumper W/ Tow, 18 Rnd 3/4 Inch Light & Frenched In License Plate Holes Fits Peterbilt 378 & 379Protect and enhance your Peterbilt 378 or 379 with the Valley...
    HC00105118BYFL01
    SKU:
    HC00105118BYFL01
    Finish Options:
    Chrome-Plated
    Material Options:
    Steel
    Location:
    Made In USA
    Height Options:
    20 Inch
    Product Type:
    Bumpers
    Light Options:
    Without Lights
    Size Options:
    10 Gauge
    Make:
    Peterbilt
    $959.99
    Qty in Cart: 0
    Price:
    $959.99
    Subtotal:
  • 20 Inch Chrome Blind Mount Boxed End Tapered Bumper W/ 2 Inch Taper & Frenched In License Plate Holes For Peterbilt 357 & 378 SFA, 379

    20 Inch Chrome Blind Mount Boxed End Tapered Bumper W/ 2 Inch Taper & Frenched In License Plate Holes For Peterbilt 357 & 378 SFA, 379

    VALLEY CHROME PLATING

    $1,466.99
    Valley Chrome 20 Inch Blind Mount Boxed End Tapered Bumper W/ 2 Inch Taper & Frenched In License Plate Holes Fits Peterbilt 378 & 379The 20-inch height delivers a bold stance, while the 2-inch taper...
    HCXXXX742TFL01UST
    SKU:
    HCXXXX742TFL01UST
    Material Options:
    Steel
    Type Options:
    Blind Mount
    Style Options:
    Tapered Boxed End
    Finish Options:
    Chrome-Plated
    Location:
    Made In USA
    Product Type:
    Bumpers
    Height Options:
    20 Inch
    Size Options:
    10 Gauge
    Make:
    Peterbilt
    $1,466.99
    Qty in Cart: 0
    Price:
    $1,466.99
    Subtotal:
  • 12 Inch Chrome Taper Hand Formed Bumper W/ External Bolt-On Tow Hitch Holes For Peterbilt 357, 359, 362 & 379 Logger

    12 Inch Chrome Taper Hand Formed Bumper W/ External Bolt-On Tow Hitch Holes For Peterbilt 357, 359, 362 & 379 Logger

    VALLEY CHROME PLATING

    $788.99
    Valley Chrome 12 Inch Taper Hand Formed Bumper W/ External Bolt-On Tow Hitch Holes Fits Peterbilt 357 & 379 LoggersDesigned for performance and style, this 2 Inch Chrome Taper Bumper for Peterbilt...
    HF0090091
    SKU:
    HF0090091
    Material Options:
    Steel
    Location:
    Made In USA
    Finish Options:
    Chrome-Plated
    Style Options:
    Tapered Rolled End
    Product Type:
    Bumpers
    Height Options:
    12 Inch
    Size Options:
    10 Gauge
    Make:
    Peterbilt
    $788.99
    Qty in Cart: 0
    Price:
    $788.99
    Subtotal:
  • 18 Inch Chrome Blind Mount American Eagle Rolled End Bumper W/ 8 Inch Ears & Tow Hole For Peterbilt 357 & 378 SFA, 379

    18 Inch Chrome Blind Mount American Eagle Rolled End Bumper W/ 8 Inch Ears & Tow Hole For Peterbilt 357 & 378 SFA, 379

    VALLEY CHROME PLATING

    $1,680.99
    Valley Chrome 18 Inch Blind Mount American Eagle Rolled End Bumper W/ 8 Inch Ears & Tow Hole Fits Peterbilt 378 & 379Upgrade your rig with this premium 18 Inch Chrome Blind Mount American Eagle...
    HCXX1X66UST
    SKU:
    HCXX1X66UST
    Finish Options:
    Chrome-Plated
    Product Type:
    Bumpers
    Material Options:
    Steel
    Height Options:
    18 Inch
    Type Options:
    Blind Mount
    Location:
    Made In USA
    Size Options:
    7 Gauge
    Style Options:
    American Eagle Rolled End
    Make:
    Peterbilt
    $1,680.99
    Qty in Cart: 0
    Price:
    $1,680.99
    Subtotal:
  • 20 Inch Chrome Blind Mount Texas Boxed End Bumper W/ Tow, License Plate Holes, 30 Rnd 3/4 Inch Light Holes In Face & 5 Rnd 3/4 Inch Light Holes Each End For Peterbilt 357 & 378 SFA, 379

    20 Inch Chrome Blind Mount Texas Boxed End Bumper W/ Tow, License Plate Holes, 30 Rnd 3/4 Inch Light Holes In Face & 5 Rnd 3/4 Inch Light Holes Each End For Peterbilt 357 & 378 SFA, 379

    VALLEY CHROME PLATING

    $1,114.99
    Valley Chrome 20 Inch Blind Mount Texas Boxed End Bumper W/ Tow, License Plate Holes, 30 Rnd 3/4 Inch Light Holes In Face & 5 Rnd 3/4 Inch Light Holes Each End Fits Peterbilt 378 & 379Add strength...
    HCXX105130BYNB5BYNUST
    SKU:
    HCXX105130BYNB5BYNUST
    Height Options:
    20 Inch
    Finish Options:
    Chrome-Plated
    Product Type:
    Bumpers
    Material Options:
    Steel
    Light Options:
    Without Lights
    Type Options:
    Blind Mount
    Location:
    Made In USA
    Size Options:
    10 Gauge
    Style Options:
    Texas Boxed End
    Make:
    Peterbilt
    $1,114.99
    Qty in Cart: 0
    Price:
    $1,114.99
    Subtotal:
  • 16 Inch Chrome Blind Mount Standard Taper Bumper W/ Rolled Ends & Tow Hole For Peterbilt 357 & 378 SFA, 379

    16 Inch Chrome Blind Mount Standard Taper Bumper W/ Rolled Ends & Tow Hole For Peterbilt 357 & 378 SFA, 379

    VALLEY CHROME PLATING

    $691.99
    Valley Chrome 16 InchBlind Mount Standard Taper Bumper W/ Rolled Ends & Tow Hole Fits Peterbilt 378 & 379Protect and style the front of your Peterbilt 378 or 379 with the Valley Chrome 16 Inch Blind...
    HCXX1X02UST
    SKU:
    HCXX1X02UST
    Product Type:
    Bumpers
    Material Options:
    Steel
    Finish Options:
    Chrome-Plated
    Type Options:
    Blind Mount
    Height Options:
    16 Inch
    Location:
    Made In USA
    Size Options:
    7 Gauge
    Style Options:
    Tapered Rolled End
    Make:
    Peterbilt
    $691.99
    Qty in Cart: 0
    Price:
    $691.99
    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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