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Peterbilt 375/377 Cab, Sleeper & Cowl Panels

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • FREE SHIPPING OVER $249
    70 Inch Sleeper Extension Panel W/ M1 Millennium Light For Peterbilt

    70 Inch Sleeper Extension Panel W/ M1 Millennium Light For Peterbilt

    PHOENIX DESIGN

    $112.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 359 1978 thru 1986* Fits Peterbilt 377 1988 thru 2000* Fits Peterbilt 378 1988 thru 2007* Fits Peterbilt 379 1987 thru 2007* Fits Peterbilt...
    PPR_205716
    SKU:
    PPR_205716
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Product Type:
    Exterior
    $112.99
    Qty in Cart: 0
    Price:
    $112.99
    Subtotal:
  • Stainless Steel 3.5 Inch Blank Sleeper Panels For Peterbilt W/ 48 Inch Sleeper

    Stainless Steel 3.5 Inch Blank Sleeper Panels For Peterbilt W/ 48 Inch Sleeper

    TRUX ACCESSORIES

    $177.99
    3.5 Inch Blank Sleeper Panels Stainless Steel Fits Peterbilt W/ 48 Inch SleeperThis pair of quality sleeper panels fit Peterbilt models with a 48 inch sleeper. They mount underneath the sleeper and...
    01-10123035
    SKU:
    01-10123035
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Length Options:
    48 Inch
    Finish Options:
    Paintable
    Make:
    Peterbilt
    Product Type:
    Exterior
    Height Options:
    3 1/2 Inch
    $177.99
    Qty in Cart: 0
    Price:
    $177.99
    Subtotal:
  • FREE SHIPPING OVER $249
    3 X 63 Inch Sleeper Extension Panels With 4 Amber M1 Millennium Lights For Peterbilt

    3 X 63 Inch Sleeper Extension Panels With 4 Amber M1 Millennium Lights For Peterbilt

    PHOENIX DESIGN

    $178.99
    Updating your sleeper lighting can make a noticeable difference with the 3 X 63 Inch Sleeper Extension Panels with 4 Amber/Amber M1 Millennium Lights, and its amber/clear lens variant, are stainless...
    PPR_201801
    SKU:
    PPR_201801
    Light Options:
    With Lights
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Exterior
    $178.99
    Qty in Cart: 0
    Price:
    $178.99
    Subtotal:
  • 6 Inch Stainless Steel Sleeper Panels For Peterbilt 359, 377, 378, 379, 388, 389

    6 Inch Stainless Steel Sleeper Panels For Peterbilt 359, 377, 378, 379, 388, 389

    TRUX ACCESSORIES

    $310.99 - $367.99
    Designed to add a polished finish along the sleeper area, these 6-inch stainless steel sleeper panels provide a straightforward exterior upgrade. Built from stainless steel, the panels are intended...
    PPR_201734
    SKU:
    PPR_201734
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Exterior
    Height Options:
    6 Inch
    Length Options:
    70 Inch
    $310.99 - $367.99
    Qty in Cart: 0
    Price:
    $310.99 - $367.99
    Subtotal:
  • 6 Inch Fiberglass Sleeper Panels W/ Size Options For Peterbilt

    6 Inch Fiberglass Sleeper Panels W/ Size Options For Peterbilt

    FIBERTECH

    $252.99 - $326.99
    Renew the look of your truck with Fibertech 6-inch fiberglass sleeper panels, designed to provide a clean, finished appearance while complementing existing components. These panels are built from...
    PPR_201732
    SKU:
    PPR_201732
    Truck Class:
    Heavy Duty
    Height Options:
    6 Inch
    Material Options:
    Fiberglass
    Make:
    Peterbilt
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    Length Options:
    63 Inch
    Length Options:
    48 Inch
    Finish Options:
    Paintable
    Length Options:
    70 Inch
    $252.99 - $326.99
    Qty in Cart: 0
    Price:
    $252.99 - $326.99
    Subtotal:
  • SS Air Cleaner Light Bars With LED Light Options For Peterbilt 378/379 With Vortox Air Cleaners

    SS Air Cleaner Light Bars With LED Light Options For Peterbilt 378/379 With Vortox Air Cleaners

    VALLEY CHROME PLATING

    $173.99 - $398.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 377 1988 thru 2000* Fits Peterbilt 378 1988 thru 2007* Fits Peterbilt 379 1987 thru 2007Rear Air Cleaner Light Panel W/ 10 Bullseye Red LED...
    PPR_200535
    SKU:
    PPR_200535
    Light Options:
    With Lights
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Finish Options:
    Polished
    Style Options:
    Vortox Style
    Position:
    Rear
    Position:
    Front
    Product Type:
    Exterior
    Color:
    Red
    Color:
    Amber
    Color:
    Red/Clear
    Color:
    Amber/Clear
    Style Options:
    Micro/Mini
    $173.99 - $398.99
    Qty in Cart: 0
    Price:
    $173.99 - $398.99
    Subtotal:
  • Valley Chrome SS Air Cleaner Panels With Light Holes For Peterbilt 378/379 With Vortox Air Cleaners

    Valley Chrome SS Air Cleaner Panels With Light Holes For Peterbilt 378/379 With Vortox Air Cleaners

    VALLEY CHROME PLATING

    $68.99 - $161.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 377 1988 thru 2000* Fits Peterbilt 378 1988 thru 2007* Fits Peterbilt 379 1987 thru 2007* Fits Peterbilt 388 2008 thru 2014* Fits Peterbilt...
    PPR_200534
    SKU:
    PPR_200534
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Finish Options:
    Polished
    Style Options:
    Vortox Style
    Position:
    Rear
    Position:
    Front
    Product Type:
    Exterior
    Light Options:
    Without Lights
    Light Options:
    With Lights
    Ready To Ship:
    Yes
    $68.99 - $161.99
    Qty in Cart: 0
    Price:
    $68.99 - $161.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Valley Chrome Blank Air Cleaner Panels For Peterbilt 378/379 With Vortox Air Cleaners

    Valley Chrome Blank Air Cleaner Panels For Peterbilt 378/379 With Vortox Air Cleaners

    VALLEY CHROME PLATING

    $90.99 - $101.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 377 1988 thru 2000* Fits Peterbilt 378 1988 thru 2007* Fits Peterbilt 379 1987 thru 2007* Fits Peterbilt 388 2008 thru 2014* Fits Peterbilt...
    PPR_200533
    SKU:
    PPR_200533
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Finish Options:
    Polished
    Style Options:
    Vortox Style
    Product Type:
    Exterior
    Light Options:
    Without Lights
    Position:
    Rear
    Ready To Ship:
    Yes
    $90.99 - $101.99
    Qty in Cart: 0
    Price:
    $90.99 - $101.99
    Subtotal:
  • FREE SHIPPING OVER $249
    CSM 11 Inch Light Bracket W/ Bulkhead Style Light Holes For 70 Inch Sleeper Extension Panels

    CSM 11 Inch Light Bracket W/ Bulkhead Style Light Holes For 70 Inch Sleeper Extension Panels

    CHROME SHOP MAFIA

    $27.25
    11 Inch Light Bracket Mounts To Bottom Of 70 Inch Sleeper Panel Flange By Chrome Shop MafiaThis 11-inch light bracket with bulkhead style light holes mounts on the bottom flange of 70-inch sleeper...
    09-160200012
    SKU:
    09-160200012
    Truck Class:
    Heavy Duty
    Finish Options:
    Polished
    Material Options:
    Stainless Steel
    Length Options:
    11 Inch
    Make:
    Universal Items
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    $27.25
    Qty in Cart: 0
    Price:
    $27.25
    Subtotal:
  • On Sale
    Limited Quantity Available
    FREE SHIPPING OVER $249
    CSM SS 7 X 70 Inch Wing Extender Panel For Peterbilt

    CSM SS 7 X 70 Inch Wing Extender Panel For Peterbilt

    CHROME SHOP MAFIA

    Now: $19.62
    Was: $134.99
    Wing Extender Panel Fits Peterbilt 70 Inch Unibilt Sleepers By Chrome Shop Mafia* High Quality Extender Panel* Made Of 304 Stainless Steel* Fits 70 Inch Unibilt Bunks* 7 Wide* Sold As Pair* Warranty...
    01-102005
    SKU:
    01-102005
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    Now: $19.62
    Was: $134.99
    Qty in Cart: 0
    Price:
    Now: $19.62
    Was: $134.99
    Subtotal:
  • CSM SS 7 X 70 Inch Sleeper Bar For Peterbilt 359, 377, 378, 379, 386, 388, 389

    CSM SS 7 X 70 Inch Sleeper Bar For Peterbilt 359, 377, 378, 379, 386, 388, 389

    CHROME SHOP MAFIA

    $424.99
    Sleeper Bar Fits Peterbilt By Chrome Shop Mafia* High Quality Sleeper Bar* Made Of 304 Stainless Steel* 70 Inch Length* 7 Inch Wide* Sold As Pair* Warranty On Sleeper Bars Against Defects In...
    01-10127017
    SKU:
    01-10127017
    Length Options:
    70 Inch
    Height Options:
    7 Inch
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Exterior
    $424.99
    Qty in Cart: 0
    Price:
    $424.99
    Subtotal:
  • FREE SHIPPING OVER $249
    CSM 5 X 63 Inch SS Sleeper Extension Panels For Peterbilt 365, 367, 377, 378, 379, 386, 388, 389

    CSM 5 X 63 Inch SS Sleeper Extension Panels For Peterbilt 365, 367, 377, 378, 379, 386, 388, 389

    CHROME SHOP MAFIA

    $191.99
    Stainless Steel Sleeper Extension Panel By Chrome Shop Mafia* High Quality Sleeper Extension Panel* Made Of 304 Stainless Steel* For 63 Inch Sleepers* 5 Inch Height* Sold As Pairs* Warranty On...
    01-101263151
    SKU:
    01-101263151
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Length Options:
    63 Inch
    Finish Options:
    Paintable
    Make:
    Peterbilt
    Light Options:
    Without Lights
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    $191.99
    Qty in Cart: 0
    Price:
    $191.99
    Subtotal:
  • CSM 7 X 36 Inch Aluminum Sleeper Panel W/ Full Wrap For Peterbilt

    CSM 7 X 36 Inch Aluminum Sleeper Panel W/ Full Wrap For Peterbilt

    CHROME SHOP MAFIA

    $423.99
    Sleeper Panel Fits Peterbilt By Chrome Shop Mafia* High Quality Sleeper Panels* Made Of Aluminum* Fits 36 Inch Sleepers* 7 Inch Wide* With Full Wrap Front And Back And A Cut Out For Fuel Tank* Sold...
    01-10123627
    SKU:
    01-10123627
    Length Options:
    36 Inch
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Aluminum
    Finish Options:
    Paintable
    Make:
    Peterbilt
    Light Options:
    Without Lights
    Product Type:
    Exterior
    $423.99
    Qty in Cart: 0
    Price:
    $423.99
    Subtotal:
  • CSM 7 X 36 Inch SS Sleeper Panels For Peterbilt 330, 335, 359, 375, 377, 378, 379, 385, 386, 388, 389, 567, 579

    CSM 7 X 36 Inch SS Sleeper Panels For Peterbilt 330, 335, 359, 375, 377, 378, 379, 385, 386, 388, 389, 567, 579

    CHROME SHOP MAFIA

    $331.99
    Sleeper Panels Fits Peterbilt By Chrome Shop MafiaPremium stainless steel sleeper panels custom-designed for 36-inch Peterbilt sleepers, featuring a 7-inch width with standard wrap design.* High...
    01-10123617
    SKU:
    01-10123617
    Location:
    Made In USA
    Length Options:
    36 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Finish Options:
    Paintable
    Make:
    Peterbilt
    Light Options:
    Without Lights
    Width Options:
    7 Inch
    Product Type:
    Exterior
    $331.99
    Qty in Cart: 0
    Price:
    $331.99
    Subtotal:
  • 3 Inch Stainless Steel Sleeper Extension Panel W/ 3 P1 Light Holes For Peterbilt 365, 367, 377, 378, 379, 384, 385, 386, 388, 389 - Pair

    3 Inch Stainless Steel Sleeper Extension Panel W/ 3 P1 Light Holes For Peterbilt 365, 367, 377, 378, 379, 384, 385, 386, 388, 389 - Pair

    PHOENIX DESIGN

    $154.99
    Sleeper Extension Panels W/ 6 P1 Light Holes - 8 Inch Spacing* High Quality Sleeper Extender Panels* Made Of 304 Stainless Steel * 3 Inch Tall* 8 Inch Light Spacing* 3 P1 Light Hole Per Side * Sold...
    01-10123217
    SKU:
    01-10123217
    Light Options:
    Without Lights
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Finish Options:
    Paintable
    Make:
    Peterbilt
    Length Options:
    72 Inch
    Product Type:
    Exterior
    $154.99
    Qty in Cart: 0
    Price:
    $154.99
    Subtotal:
  • 3 Inch Stainless Steel Blank Sleeper Extension Panel For Peterbilt 365, 367, 377, 378, 379, 384, 385, 386, 388 & 389 - Pair

    3 Inch Stainless Steel Blank Sleeper Extension Panel For Peterbilt 365, 367, 377, 378, 379, 384, 385, 386, 388 & 389 - Pair

    PHOENIX DESIGN

    $98.99
    Peterbilt Stainless Steel Blank Sleeper Extension Panel* High Quality Sleeper Extender Trim* Made Of 304 Stainless Steel* 3 Inch Wide Blank* Sold As Pair* Warranty On Sleeper Extender Trim Against...
    01-10123137
    SKU:
    01-10123137
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Exterior
    $98.99
    Qty in Cart: 0
    Price:
    $98.99
    Subtotal:
  • 3 Inch Stainless Steel Sleeper Extension Panels W/ P1 Light Hole For Peterbilt 365, 367, 377, 379, 384, 385, 386, 388, 389

    3 Inch Stainless Steel Sleeper Extension Panels W/ P1 Light Hole For Peterbilt 365, 367, 377, 379, 384, 385, 386, 388, 389

    PHOENIX DESIGN

    $112.99
    Sleeper Extension Panels W/ 2 P1 Light Holes Fits Peterbilt W/ Unibilt Sleeper* High Quality Sleeper Extender Panels* Made Of 304 Stainless Steel * 3 Inch Tall* 12 Inch Light Spacing* 1 P1 Light Hole...
    01-10123135
    SKU:
    01-10123135
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Finish Options:
    Polished
    Make:
    Peterbilt
    Length Options:
    72 Inch
    Light Options:
    Without Lights
    Product Type:
    Exterior
    $112.99
    Qty in Cart: 0
    Price:
    $112.99
    Subtotal:
  • 3 Inch Stainless Steel Sleeper Extension Panel W/ 2 P1 Amber/Amber LED Lights For Peterbilt 365, 367, 377, 378, 379, 384, 385, 386, 388, 389 - Pair

    3 Inch Stainless Steel Sleeper Extension Panel W/ 2 P1 Amber/Amber LED Lights For Peterbilt 365, 367, 377, 378, 379, 384, 385, 386, 388, 389 - Pair

    PHOENIX DESIGN

    $195.99
    Sleeper Extension Panels W/ 4 Amber/Amber LED Lights Fits Peterbilt W/ Unibilt Sleeper - 12 Inch Spacing* High Quality Sleeper Extender Panels* Made Of 304 Stainless Steel * 3 Inch Tall* 12 Inch...
    01-10123113
    SKU:
    01-10123113
    Location:
    Made In USA
    Light Options:
    With Lights
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Finish Options:
    Polished
    Product Type:
    Exterior
    $195.99
    Qty in Cart: 0
    Price:
    $195.99
    Subtotal:
  • Stainless Steel Sleeper Extension Panels W/ 8 - 2 Inch Light Holes For Peterbilt 365, 367, 377, 378, 379, 384, 385, 386, 388, 389 Sleeper

    Stainless Steel Sleeper Extension Panels W/ 8 - 2 Inch Light Holes For Peterbilt 365, 367, 377, 378, 379, 384, 385, 386, 388, 389 Sleeper

    PHOENIX DESIGN

    $145.99
    Sleeper Extension Panels Fits Peterbilt* High Quality Sleeper Extension Panels* Made Of 304 Stainless Steel* For 36, 48 And 63 Inch Sleeper* Fits 3 Inch Tall Sleeper Panels* With 4 Holes For Round...
    01-10123083
    SKU:
    01-10123083
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Length Options:
    63 Inch
    Finish Options:
    Polished
    Make:
    Peterbilt
    Light Options:
    Without Lights
    Product Type:
    Exterior
    $145.99
    Qty in Cart: 0
    Price:
    $145.99
    Subtotal:
  • 3 X 48 Inch Stainless Steel Sleeper Extension Panel W/ 1 M1 Amber/Clear LED Light For Peterbilt 365, 367, 377, 379, 384, 385, 386, 388 & 389

    3 X 48 Inch Stainless Steel Sleeper Extension Panel W/ 1 M1 Amber/Clear LED Light For Peterbilt 365, 367, 377, 379, 384, 385, 386, 388 & 389

    PHOENIX DESIGN

    $129.99
    Lighted Sleeper Extension Panel Fits Peterbilt W/ Unibilt Sleeper* High Quality Sleeper Extension Panels * Made Of 304 Stainless Steel* 48 Inch* 3 Inch Tall* With 1 M1 Magnum LED Clear* For Peterbilt...
    01-10123047
    SKU:
    01-10123047
    Light Options:
    With Lights
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Finish Options:
    Polished
    Product Type:
    Exterior
    $129.99
    Qty in Cart: 0
    Price:
    $129.99
    Subtotal:
  • Total: items /

Adding your products to cart

The Peterbilt 375/377 Cab, Sleeper & Cowl Panels product lineup offers a wide range of high-quality replacement parts and accessories for these popular semi-truck models. Whether you need stainless steel sleeper panels, painted aluminum cowl panels, or customizable lighting options, this product lineup has you covered. Featuring durable construction and stylish designs, these parts can help enhance the look and functionality of your Peterbilt 375 or 377. From sleeper extension panels with integrated lighting to blank cab panels ready for customization, this product lineup provides an extensive selection to meet your specific needs. Upgrade the interior and exterior of your Peterbilt with these top-of-the-line components and give your truck a personalized, professional appearance.

Frequently Asked Questions About Peterbilt 375/377 Cab, Sleeper & Cowl Panels

What exactly is included in this category?

This category covers exterior sheet metal and structural panels for the Peterbilt 375 and 377, including cab panels, sleeper box panels, and cowl panels. These are the body panels that make up the cab structure, sleeper compartment exterior, and the cowl area beneath the windshield, used for replacing rusted, dented, or otherwise damaged sections of your truck.

Will these panels fit my specific Peterbilt 375 or 377 model year?

Panel fitment can vary depending on the cab configuration, sleeper length, and production year of your truck, since Peterbilt made design changes over the years these models were in production. Always check the listed specifications and compare measurements to your existing panel before ordering, and reach out to our support team with your VIN or model details if you are unsure about a specific fit.

Are these panels made from the same material as the factory originals?

Most replacement panels are manufactured from steel or aluminum to match the general construction of the original factory panel, though exact gauge and alloy can differ by manufacturer. Check the product description for material specifics, and keep in mind that aftermarket panels may require minor adjustments in thickness or contour compared to OEM parts.

Do these panels come primed, painted, or bare metal?

Panels are typically sold in a bare or primed finish rather than painted to match your truck's color. This allows you to prep and paint the panel to match your specific paint code after installation. Confirm the finish listed on the product page before purchasing so you can plan for painting or additional prep work.

What does installation typically involve, and can I do it myself?

Installation generally involves removing the damaged panel through unbolting or cutting out welded sections, then fitting and securing the new panel using welding, riveting, or bolting depending on the panel type and original construction method. Cab and sleeper panel work often requires cutting, welding, and body filler work to achieve a clean factory-like fit, so this job is best handled by someone with body shop experience or a qualified truck repair shop unless you're comfortable with metal fabrication.


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