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Peterbilt 388 Exterior Parts

Upgrade your Peterbilt 388 with our premium exterior parts selection, including day cab conversion kits, sleeper accessories, replacement windshield wipers, and cowl panels.
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  • CSM Aluminum Sleeper Shock Box Cover For Peterbilt 378, 379, 385, 386, 388, 389

    CSM Aluminum Sleeper Shock Box Cover For Peterbilt 378, 379, 385, 386, 388, 389

    CHROME SHOP MAFIA

    $448.99
    Peterbilt Sleeper Shock Box Cover By Chrome Shop MafiaHide sleeper shocks and suspension with this 5-piece aluminum shock box cover kit. It includes one cover, three mounting angles, and a hardware...
    01-101116
    SKU:
    01-101116
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Peterbilt
    Product Type:
    Exterior
    $448.99
    Qty in Cart: 0
    Price:
    $448.99
    Subtotal:
  • SS Load Light Trim Ring For Peterbilt

    SS Load Light Trim Ring For Peterbilt

    ROADWORKS

    $39.38
    Stainless Steel Sleeper Load Light Trim Ring Fits Peterbilt* High Quality Sleeper Load Light Trim Ring* Made Of Stainless Steel* 70 Inch Diameter* With Dimples * Made In USA* Sold As Pairs* Warranty...
    01-101109
    SKU:
    01-101109
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Exterior
    $39.38
    Qty in Cart: 0
    Price:
    $39.38
    Subtotal:
  • Stainless Steel Blank Shock Box Cover W/ 45 Degree Top For Peterbilt 365, 367, 378, 379, 386, 388, 389

    Stainless Steel Blank Shock Box Cover W/ 45 Degree Top For Peterbilt 365, 367, 378, 379, 386, 388, 389

    IOWA CUSTOMS

    $920.99
    Stainless Steel Shock Box Cover W/ 45 Degree Top Fits Peterbilt With 48, 52, 63 Or 72 Inch Sleepers* High Quality Shock Box Cover * 304 #8 Non-Directional Polished Stainless Steel* Blank Without...
    01-10110084
    SKU:
    01-10110084
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Finish Options:
    Polished
    Product Type:
    Frame & Chassis
    $920.99
    Qty in Cart: 0
    Price:
    $920.99
    Subtotal:
  • 304 S.S. Blank Extended Base Shock W/ Air Bag Cover For Peterbilt 378, 379, 388, 389 W/ 36, 48 Or 63 Inch Sleeper

    304 S.S. Blank Extended Base Shock W/ Air Bag Cover For Peterbilt 378, 379, 388, 389 W/ 36, 48 Or 63 Inch Sleeper

    ROADWORKS

    $491.99
    304 Stainless Steel Blank Extended Base Shock W/ Air Bag Cover Fits Peterbilt* High Quality Extended Base Shock* Made Of 304 Stainless Steel * Blank * With Air Bag Cover* Made In USA* Sold...
    01-10110083
    SKU:
    01-10110083
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Frame & Chassis
    $491.99
    Qty in Cart: 0
    Price:
    $491.99
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  • 304 Stainless Steel Louvered Regular Base Shock/Air Bag Cover For Peterbilt 367, 378, 379, 388, 389

    304 Stainless Steel Louvered Regular Base Shock/Air Bag Cover For Peterbilt 367, 378, 379, 388, 389

    ROADWORKS

    $502.99
    304 Stainless Steel Louvered Regular Base Shock/Air Bag Cover Fits Peterbilt 367, 378, 379, 388 & 389* High Quality Base Shock/Air Bag Cover* Made Of 304 Stainless Steel * Louvered * Sold...
    01-101100259
    SKU:
    01-101100259
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Exterior
    $502.99
    Qty in Cart: 0
    Price:
    $502.99
    Subtotal:
  • Stainless Steel Shock Box Cover W/ 45 Degree Top For Peterbilt 365, 367, 378, 379, 386, 388, 389 W/ 70-78 Inch Sleeper

    Stainless Steel Shock Box Cover W/ 45 Degree Top For Peterbilt 365, 367, 378, 379, 386, 388, 389 W/ 70-78 Inch Sleeper

    IOWA CUSTOMS

    $855.99
    Iowa Customs Stainless Steel Shock Box Cover W/ 45 Degree Top Fits Peterbilt 389 W/ 70 Inch Sleeper* High Quality Shock Box Cover * 304 #8 Non-Directional Polished Stainless Steel* Blank Without...
    01-101100005
    SKU:
    01-101100005
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Finish Options:
    Polished
    Product Type:
    Exterior
    $855.99
    Qty in Cart: 0
    Price:
    $855.99
    Subtotal:
  • Stainless Steel Sleeper Shock Air Bag Cover W/ 6 Bullseye Light Holes For Peterbilt 2006-Newer

    Stainless Steel Sleeper Shock Air Bag Cover W/ 6 Bullseye Light Holes For Peterbilt 2006-Newer

    ROADWORKS

    $384.99
    Sleeper Shock Air Bag Cover W/ 6 Bullseye Light Holes & Bezels Fits Peterbilt 2006-Newer* High Quality Sleeper Air Bag Cover* Made Of Stainless Steel* 2 Piece* 6 - Bullseye Light Cutouts*...
    01-1011000006
    SKU:
    01-1011000006
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Exterior
    $384.99
    Qty in Cart: 0
    Price:
    $384.99
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  • Stainless Steel 2 X 70 Inch Sleeper Window Trim For Peterbilt

    Stainless Steel 2 X 70 Inch Sleeper Window Trim For Peterbilt

    ARANDA TRUCK ACCESSORIES

    $229.99
    SS Sleeper Window Surround Trim Fits PeterbiltSurround your sleeper window with this pair of quality flat stainless steel outer trim. They are each 70 inches long and 2 inches wide. The trim fits...
    01-101002
    SKU:
    01-101002
    Length Options:
    70 Inch
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Exterior
    $229.99
    Qty in Cart: 0
    Price:
    $229.99
    Subtotal:
  • SS Rear Window Shade With 8 Louvers For Peterbilt

    SS Rear Window Shade With 8 Louvers For Peterbilt

    ROADWORKS

    $398.99
    Stainless Steel Rear Window Shade Fits PeterbiltThis High Quality 37.25 X 20.375 Inch Rear Window Shade That Fits Peterbilt Models Has 8 Louvered Horizontal Bars. The Shade Is Made In The USA And...
    01-101000
    SKU:
    01-101000
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Exterior
    $398.99
    Qty in Cart: 0
    Price:
    $398.99
    Subtotal:
  • FREE SHIPPING
    Turbowing Mounting Kit For Peterbilt 70 Inch High Roof / Standard or Unibilt

    Turbowing Mounting Kit For Peterbilt 70 Inch High Roof / Standard or Unibilt

    VALLEY CHROME PLATING

    $325.99
    Valley Chrome Stainless Steel Medium Wing Mounting Kit Fits Peterbilt With 70 Inch High Roof* High Quality Mounting Kit * Stainless Steel* With 70 Inch High Roof With Standard Or Unibilt Sleeper*...
    01-10007
    SKU:
    01-10007
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Material Options:
    Stainless Steel
    Product Type:
    Exterior
    $325.99
    Qty in Cart: 0
    Price:
    $325.99
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  • Large Stainless Steel Turbowing Mounting Kit For Peterbilt With 63 Inch Flat Top

    Large Stainless Steel Turbowing Mounting Kit For Peterbilt With 63 Inch Flat Top

    VALLEY CHROME PLATING

    $630.99
    Valley Chrome Large Wing Mounting Kit Fits 63 Inch Peterbilt Flat TopThis high quality wing mounting kit that fits Peterbilt models with a 63 inch flat top non-unibilt sleeper is for a large wing...
    01-10004
    SKU:
    01-10004
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Product Type:
    Exterior
    $630.99
    Qty in Cart: 0
    Price:
    $630.99
    Subtotal:
  • Stainless Steel Medium Wing Mounting Kit For High Roof Peterbilt 63 Inch Sleeper

    Stainless Steel Medium Wing Mounting Kit For High Roof Peterbilt 63 Inch Sleeper

    VALLEY CHROME PLATING

    $385.99
    Valley Chrome Stainless Steel Aerolight Wing Mounting Kit Fits Peterbilt 63 Inch High Roof / Stand Up Sleeper* High Quality Mounting Kit * Made Of Stainless Steel* For Models With 63/72 Inch * High...
    01-10001
    SKU:
    01-10001
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Product Type:
    Exterior
    $385.99
    Qty in Cart: 0
    Price:
    $385.99
    Subtotal:
  • Fibertech Deluxe Flat Top Day Cab Conversion Kit For Peterbilt 365, 367, 378, 379, 386, 388, 389

    Fibertech Deluxe Flat Top Day Cab Conversion Kit For Peterbilt 365, 367, 378, 379, 386, 388, 389

    FIBERTECH

    $2,684.99
    Fiberglass Flat Top Day Cab Deluxe KitLooking to add more comfort to your Peterbilt truck? This Day Cab Extended Deluxe Conversion Kit is a great choice. It adds 4 inches of legroom with its 6-inch...
    01-093004
    SKU:
    01-093004
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Peterbilt
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    $2,684.99
    Qty in Cart: 0
    Price:
    $2,684.99
    Subtotal:
  • Fiberglass Flat Panel Day Cab Kit With Light Gray Interior For Peterbilt 375, 377, 378, 379, 388, & 389

    Fiberglass Flat Panel Day Cab Kit With Light Gray Interior For Peterbilt 375, 377, 378, 379, 388, & 389

    FIBERTECH

    $2,456.99
    Peterbilt Flat Panel Day Cab KitCheck out the awesome Day Cab Flat Panel Conversion Kit for Peterbilt trucks! Get extra legroom with this easy-to-install, sturdy fiberglass extension. Complete with...
    01-093003
    SKU:
    01-093003
    Truck Class:
    Heavy Duty
    Material Options:
    Fiberglass
    Make:
    Peterbilt
    Finish Options:
    Paintable
    Length Options:
    73 Inch
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    $2,456.99
    Qty in Cart: 0
    Price:
    $2,456.99
    Subtotal:
  • Peterbilt 375, 377, 378, 379, 386, 388, 389 Ultracab XL Fatback 6 Inch Day Cab Conversion Kit

    Peterbilt 375, 377, 378, 379, 386, 388, 389 Ultracab XL Fatback 6 Inch Day Cab Conversion Kit

    DAYCAB COMPANY

    $2,753.99
    Peterbilt Ultracab Standard Day Cab Conversion KitThis kit includes a 6-inch extended cab fiberglass panel that comes pre-assembled with a window and pre-installed sound deadening core for a direct...
    01-0930020
    SKU:
    01-0930020
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Material Options:
    Fiberglass
    Make:
    Peterbilt
    Finish Options:
    Paintable
    Length Options:
    70 Inch
    Product Type:
    Exterior
    $2,753.99
    Qty in Cart: 0
    Price:
    $2,753.99
    Subtotal:
  • Fibertech Deluxe Day Cab Conversion Kit For Peterbilt Ultracab

    Fibertech Deluxe Day Cab Conversion Kit For Peterbilt Ultracab

    FIBERTECH

    $1,603.99
    Ultra Cab Deluxe Day Cab Conversions Kit Fits PeterbiltGet extra legroom with this Day Cab Flat Panel Deluxe Conversion Kit, made for Peterbilt models 378, 379, 386, 388, 389, and 389 Glider Ultracab...
    01-093002
    SKU:
    01-093002
    Truck Class:
    Heavy Duty
    Material Options:
    Fiberglass
    Make:
    Peterbilt
    Finish Options:
    Paintable
    Length Options:
    73 Inch
    Product Type:
    Exterior
    Cab Style:
    Flat Top
    Position:
    Kit Full
    Ready To Ship:
    Yes
    $1,603.99
    Qty in Cart: 0
    Price:
    $1,603.99
    Subtotal:
  • BESTfit Fiberglass Day Cab Conversion Kit With Window For Peterbilt 379, 378, 386, 388, 389 & 377

    BESTfit Fiberglass Day Cab Conversion Kit With Window For Peterbilt 379, 378, 386, 388, 389 & 377

    BESTFIT TRUCK PARTS

    $903.99
    BESTfit One Piece Day Cab Conversion Kit With Rear WindowThis high quality fiberglass day cab conversion kit that includes a 19 X 36 inch window fits Peterbilt 377, 378, 379, 386, 388, and 389 models...
    01-0930014
    SKU:
    01-0930014
    Truck Class:
    Heavy Duty
    Material Options:
    Fiberglass
    Make:
    Peterbilt
    Finish Options:
    Paintable
    Length Options:
    69 Inch
    Product Type:
    Exterior
    $903.99
    Qty in Cart: 0
    Price:
    $903.99
    Subtotal:
  • Fiberglass Day Cab Conversion Kit With Rear Window By BESTfit For Peterbilt Unibilt

    Fiberglass Day Cab Conversion Kit With Rear Window By BESTfit For Peterbilt Unibilt

    BESTFIT TRUCK PARTS

    $935.99
    BESTfit Day Cab Conversion Kit Fits PeterbiltThe BESTfit Day Cab Conversion Kit with Rear Window is designed for Peterbilt Unibilt trucks that need a modern, durable day cab solution. Made from...
    01-0930011
    SKU:
    01-0930011
    Truck Class:
    Heavy Duty
    Material Options:
    Fiberglass
    Make:
    Peterbilt
    Finish Options:
    Paintable
    Length Options:
    36 Inch
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    $935.99
    Qty in Cart: 0
    Price:
    $935.99
    Subtotal:
  • Fibertech 6 Inch Extended Day Cab Deluxe Conversion Kit W/ 19 X 36 Inch Rear Window For Peterbilt Ultracab

    Fibertech 6 Inch Extended Day Cab Deluxe Conversion Kit W/ 19 X 36 Inch Rear Window For Peterbilt Ultracab

    FIBERTECH

    $2,688.99
    3-Piece Deluxe Day Cab Extension W/ Aluminum Bracing, Factory Rear Window Glass & Mounting HardwareThis aftermarket 6-inch fiberglass cab extension adds 4 inches of extra legroom, giving you more...
    01-0930010
    SKU:
    01-0930010
    Truck Class:
    Heavy Duty
    Material Options:
    Fiberglass
    Make:
    Peterbilt
    Finish Options:
    Paintable
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    $2,688.99
    Qty in Cart: 0
    Price:
    $2,688.99
    Subtotal:
  • Fibertech Deluxe Day Cab Conversion Kit For Peterbilt Flat Top

    Fibertech Deluxe Day Cab Conversion Kit For Peterbilt Flat Top

    FIBERTECH

    $1,735.99
    Peterbilt Flat Top Deluxe Day Cab Conversions KitThis aftermarket one-piece fiberglass panel offers a simple solution for your day cab needs. It comes with bonded internal aluminum bracing and all...
    01-093001
    SKU:
    01-093001
    Truck Class:
    Heavy Duty
    Material Options:
    Fiberglass
    Make:
    Peterbilt
    Finish Options:
    Paintable
    Length Options:
    73 Inch
    Light Options:
    Without Lights
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    $1,735.99
    Qty in Cart: 0
    Price:
    $1,735.99
    Subtotal:
  • Total: items /

Adding your products to cart

Our lineup of aftermarket Peterbilt 388 exterior parts include accessories for your cab and sleeper area. Selecting the right type of aftermarket sleeper roof trim or side window trim can serve to match the overall aesthetic of your Peterbilt 388 by complementing its truck hood trim or its incandescent accent cab lights. The customizations are pretty much endless, especially if you have a particular vision for how you want the exterior of your cab to look. By investing in the right aftermarket punch grilles, you can further accentuate the overall style of your truck, making it even more unique and iconic. Our extensive product lineup of polished, stainless steel exterior cab trim pieces can seamlessly match your Peterbilt 388 bumper style so that you get a uniform look. Now, if you're looking to start turning heads while on the open road, consider investing in exterior accessories like a full wrap sleeper bar, polished aluminum sleeper panels, or a 3-piece stainless steel roof trim kit. Choosing the right item from our exterior parts lineup is the perfect way to achieve that sleek, stylish look for your Peterbilt 388 at a competitive price point. If you need help deciding on the right piece, give our team a call!

Frequently Asked Questions About Peterbilt 388 Exterior Parts

What year models does the Peterbilt 388 bumper fit, and are there any compatibility issues I should know about?

Peterbilt 388 bumpers are designed specifically for model years 2006-2015. While the mounting points remained consistent throughout production, there are slight variations between early models (2006-2010) and later models (2011-2015) regarding fog light cutouts and sensor mounting provisions. Always verify your specific OEM and model year before ordering, as some 388s built for specialized applications may have unique mounting configurations.

What's the difference between chrome, stainless steel, and aluminum bumpers for my 388?

Chrome-plated steel bumpers offer the classic mirror finish but require regular polishing and can rust if the chrome chips. Stainless steel bumpers (typically 304-grade) provide excellent corrosion resistance and maintain their shine with minimal maintenance, though they're heavier and more expensive. Aluminum bumpers are the lightest option, won't rust, and take polish well, but they're more prone to denting and may show scratches more easily. For trucks in northern climates with road salt exposure, stainless steel typically offers the best long-term value.

Can I install a new bumper myself, or do I need special tools and expertise?

While bumper installation is possible for experienced DIYers, it typically requires two people, a floor jack or bumper stand, and basic hand tools including 3/4" and 7/8" wrenches. The bumper weighs between 85-120 pounds depending on material. Most installations take 2-3 hours. Common challenges include aligning mounting brackets, reconnecting fog lights and sensors, and ensuring proper fitment around the grille. Many customers find it worthwhile to have a shop install it, typically costing $200-400 in labor.

How do I match my existing exterior accessories when replacing just the bumper?

The most common finish mismatch occurs between older chrome and new chrome due to weathering. To ensure the best match, consider the age and condition of your existing chrome or stainless accessories. For trucks with mixed finishes, upgrading to all stainless steel components over time often provides the most uniform appearance. When ordering, specify if you need standard 16" or extended 18" bumpers, and whether you need cutouts for tow hooks, fog lights, or air dam provisions.

What's included with the bumper, and what additional parts might I need?

Most aftermarket Peterbilt 388 bumpers come as the bumper shell only. You'll typically need to purchase separately: mounting brackets (if not reusing OEM), bumper bolts, fog light brackets, license plate holder, and any chrome or stainless steel end caps. If upgrading from steel to aluminum, you may need different mounting hardware due to galvanic corrosion concerns. Budget an additional $100-300 for these accessories depending on your configuration.


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