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Kenworth W900B/W900L Tool & Battery Boxes

Secure your gear and protect your batteries with Kenworth W900B and W900L toolboxes and battery boxes. Find full-frame mounted step boxes in in 30, 40, and 45-inch lengths.
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  • Subtotal
  • Turnpike Truck Trim Aluminum & Steel Double Step Tool Box Assembly 45 Inch W/ Top Wide Design For Kenworth W900B

    Turnpike Truck Trim Aluminum & Steel Double Step Tool Box Assembly 45 Inch W/ Top Wide Design For Kenworth W900B

    TURNPIKE TRUCK TRIM

    $398.99
    45 Inch Aluminum & Steel Double Step Tool Box W/ Top Wide Design By Turnpike Truck Trim Fits Kenworth W900B* High Quality Toolbox Assembly* Steel Box With Aluminum Steps And Cover* Top Wide Design*...
    02-050100015
    SKU:
    02-050100015
    Length Options:
    45 Inch
    Make:
    Kenworth
    Product Type:
    Toolboxes
    Material Options:
    Aluminum
    $398.99
    Qty in Cart: 0
    Price:
    $398.99
    Subtotal:
  • Turnpike Truck Trim Stainless Steel Tool OR Battery Box W/ Mirror Finish W/ Optional Length and Style For Kenworth

    Turnpike Truck Trim Stainless Steel Tool OR Battery Box W/ Mirror Finish W/ Optional Length and Style For Kenworth

    TURNPIKE TRUCK TRIM

    $1,083.99 - $1,249.99
    Choose Option(s) to see description.Fitment* Fits Kenworth Cabover 1961 thru 2002* Fits Kenworth K100 1963 thru 1967* Fits Kenworth K100C 1968 thru 1983* Fits Kenworth K100E 1984 thru 2002* Fits...
    PPR_301032
    SKU:
    PPR_301032
    Product Type:
    Toolboxes
    Availability:
    Ready To Ship
    Style Options:
    Smooth
    Finish Options:
    Polished
    Length Options:
    45 Inch
    Style Options:
    Punched
    Length Options:
    34 Inch
    Length Options:
    40 Inch
    Material Options:
    Stainless Steel
    Size Options:
    12 Gauge
    Make:
    Kenworth
    $1,083.99 - $1,249.99
    Qty in Cart: 0
    Price:
    $1,083.99 - $1,249.99
    Subtotal:
  • Turnpike Truck Trim Stainless Steel Bottom Battery Box W/ Mirror Finish & Optional Smooth Or Punched Steps For Kenworth

    Turnpike Truck Trim Stainless Steel Bottom Battery Box W/ Mirror Finish & Optional Smooth Or Punched Steps For Kenworth

    TURNPIKE TRUCK TRIM

    $217.99 - $258.99
    Choose Option(s) to see description.Fitment* Fits Kenworth Cabover 1961 thru 2002* Fits Kenworth K100 1963 thru 1967* Fits Kenworth K100C 1968 thru 1983* Fits Kenworth K100E 1984 thru 2002* Fits...
    PPR_301035
    SKU:
    PPR_301035
    Product Type:
    Toolboxes
    Availability:
    Ready To Ship
    Style Options:
    Punched
    Length Options:
    45 Inch
    Finish Options:
    Polished
    Size Options:
    14 Gauge
    Material Options:
    Stainless Steel
    Size Options:
    12 Gauge
    Style Options:
    Smooth
    Length Options:
    40 Inch
    Make:
    Kenworth
    $217.99 - $258.99
    Qty in Cart: 0
    Price:
    $217.99 - $258.99
    Subtotal:
  • Turnpike Truck Trim Stainless Steel Battery Box 45 Inch W/ Mirror Finish For Kenworth

    Turnpike Truck Trim Stainless Steel Battery Box 45 Inch W/ Mirror Finish For Kenworth

    TURNPIKE TRUCK TRIM

    $1,233.99
    45 Inch Stainless Steel Battery Box W/ Mirror Finish By Turnpike Truck Trim Fits KenworthThis Turnpike Truck Trim 45 Inch Stainless Steel Battery Box is designed for durability, security, and custom...
    02-05010069
    SKU:
    02-05010069
    Size Options:
    12 Gauge
    Finish Options:
    Polished
    Material Options:
    Stainless Steel
    Length Options:
    45 Inch
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Toolboxes
    Availability:
    Ready To Ship
    $1,233.99
    Qty in Cart: 0
    Price:
    $1,233.99
    Subtotal:
  • Turnpike Truck Trim Stainless Steel Battery Box Lid 40 Inch W/ Mirror Finish & Smooth Steps For Kenworth

    Turnpike Truck Trim Stainless Steel Battery Box Lid 40 Inch W/ Mirror Finish & Smooth Steps For Kenworth

    TURNPIKE TRUCK TRIM

    $362.99
    40 Inch Stainless Steel Battery Box Lid W/ Mirror Finish, Smooth Step By Turnpike Truck Trim Fits KenworthThis Turnpike Truck Trim Stainless Steel Battery Box Lid is designed to deliver durability,...
    02-05010051
    SKU:
    02-05010051
    Size Options:
    12 Gauge
    Length Options:
    40 Inch
    Finish Options:
    Polished
    Style Options:
    Smooth
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    Product Type:
    Toolboxes
    Availability:
    Ready To Ship
    $362.99
    Qty in Cart: 0
    Price:
    $362.99
    Subtotal:
  • Turnpike Truck Trim Box Step Brackets Polished Stainless Steel For Kenworth

    Turnpike Truck Trim Box Step Brackets Polished Stainless Steel For Kenworth

    TURNPIKE TRUCK TRIM

    $192.99
    Box Step Brackets Polished Stainless Steel For Battery Or Tool Boxes For KenworthThese Turnpike Truck Trim Polished Stainless Steel Box Step Brackets are designed to deliver dependable strength and...
    02-05010055
    SKU:
    02-05010055
    Material Options:
    Stainless Steel
    Finish Options:
    Polished
    Style Options:
    Punched
    Make:
    Kenworth
    Product Type:
    Toolboxes
    $192.99
    Qty in Cart: 0
    Price:
    $192.99
    Subtotal:
  • Stainless Steel Locking Tool Box W/ Mirror Finish For Kenworth

    Stainless Steel Locking Tool Box W/ Mirror Finish For Kenworth

    AFTERMARKET

    $1,210.99 - $1,397.99
    Choose Option(s) to see description.Fitment* Fits Kenworth Cabover 1961 thru 2002* Fits Kenworth K100 1963 thru 1967* Fits Kenworth K100C 1968 thru 1983* Fits Kenworth K100E 1984 thru 2002* Fits...
    PPR_300933
    SKU:
    PPR_300933
    Length Options:
    40 Inch
    Size Options:
    12 Gauge
    Length Options:
    34 Inch
    Product Type:
    Toolboxes
    Length Options:
    45 Inch
    Finish Options:
    Polished
    Style Options:
    Punched
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    $1,210.99 - $1,397.99
    Qty in Cart: 0
    Price:
    $1,210.99 - $1,397.99
    Subtotal:
  • CSM Quilted SS Tool Box Cover For Kenworth W900 2005 & Newer

    CSM Quilted SS Tool Box Cover For Kenworth W900 2005 & Newer

    CHROME SHOP MAFIA

    $685.99
    Choose Option(s) to see description.Fitment* Fits Kenworth W900B 2005 thru 2025* Fits Kenworth W900B 2005 thru 2025* Fits Kenworth W900L 2005 thru 2026* Fits Kenworth W900L 2005 thru 2026CSM 40 Inch...
    PPR_300191
    SKU:
    PPR_300191
    Length Options:
    40 Inch
    Product Type:
    Frame & Chassis
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Length Options:
    45 Inch
    Style Options:
    Quilted
    Make:
    Kenworth
    $685.99
    Qty in Cart: 0
    Price:
    $685.99
    Subtotal:
  • CSM Quilted Stainless Steel Tool Box Cover For Kenworth W900

    CSM Quilted Stainless Steel Tool Box Cover For Kenworth W900

    CHROME SHOP MAFIA

    $685.99
    Upgrade the look of your Kenworth W900 with the Chrome Shop Mafia Quilted Stainless Steel Tool Box Cover. Crafted from high-quality stainless steel with a striking quilted pattern, this cover...
    PPR_300002
    SKU:
    PPR_300002
    Length Options:
    45 Inch
    Style Options:
    Quilted
    Length Options:
    34 Inch
    Length Options:
    40 Inch
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    Location:
    Made In USA
    Make:
    Kenworth
    $685.99
    Qty in Cart: 0
    Price:
    $685.99
    Subtotal:
  • CSM Sunburst SS Tool Box Cover For Kenworth W900 2005 & Newer

    CSM Sunburst SS Tool Box Cover For Kenworth W900 2005 & Newer

    CHROME SHOP MAFIA

    $685.99
    Choose Option(s) to see description.Fitment* Fits Kenworth W900B 2005 thru 2025* Fits Kenworth W900B 2005 thru 2025* Fits Kenworth W900L 2005 thru 2026* Fits Kenworth W900L 2005 thru 2026CSM 40 Inch...
    PPR_300192
    SKU:
    PPR_300192
    Location:
    Made In USA
    Length Options:
    40 Inch
    Length Options:
    45 Inch
    Product Type:
    Frame & Chassis
    Style Options:
    Sunburst
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    $685.99
    Qty in Cart: 0
    Price:
    $685.99
    Subtotal:
  • CSM Sunburst Stainless Steel Tool Box Cover For Kenworth W900

    CSM Sunburst Stainless Steel Tool Box Cover For Kenworth W900

    CHROME SHOP MAFIA

    $685.99
    Choose Option(s) to see description.Fitment* Fits Kenworth W900B 1982 thru 2004* Fits Kenworth W900B 1994 thru 2004* Fits Kenworth W900L 1990 thru 2004 * Fits Kenworth W900L 1994 thru 2004CSM 34 Inch...
    PPR_300096
    SKU:
    PPR_300096
    Location:
    Made In USA
    Length Options:
    40 Inch
    Length Options:
    45 Inch
    Product Type:
    Frame & Chassis
    Style Options:
    Sunburst
    Length Options:
    34 Inch
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    $685.99
    Qty in Cart: 0
    Price:
    $685.99
    Subtotal:
  • CSM Sunburst Stainless Steel Battery Box Cover For Kenworth W900 2005 & Newer

    CSM Sunburst Stainless Steel Battery Box Cover For Kenworth W900 2005 & Newer

    CHROME SHOP MAFIA

    $507.99
    Choose Option(s) to see description.Fitment* Fits Kenworth W900B 2005 thru 2025* Fits Kenworth W900B 2005 thru 2025* Fits Kenworth W900L 2005 thru 2026* Fits Kenworth W900L 2005 thru 2026CSM 34 Inch...
    PPR_300001
    SKU:
    PPR_300001
    Length Options:
    40 Inch
    Length Options:
    34 Inch
    Product Type:
    Frame & Chassis
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Length Options:
    45 Inch
    Style Options:
    Sunburst
    Make:
    Kenworth
    $507.99
    Qty in Cart: 0
    Price:
    $507.99
    Subtotal:
  • CSM Quilted Stainless Steel Battery Box Cover For Kenworth W900 2005 & Newer

    CSM Quilted Stainless Steel Battery Box Cover For Kenworth W900 2005 & Newer

    CHROME SHOP MAFIA

    $507.99
    Choose Option(s) to see description.Fitment* Fits Kenworth W900B 2005 thru 2025* Fits Kenworth W900B 2005 thru 2025* Fits Kenworth W900L 2005 thru 2026* Fits Kenworth W900L 2005 thru 2026CSM 34 Inch...
    PPR_299795
    SKU:
    PPR_299795
    Length Options:
    40 Inch
    Style Options:
    Quilted
    Location:
    Made In USA
    Product Type:
    Frame & Chassis
    Length Options:
    45 Inch
    Length Options:
    34 Inch
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    $507.99
    Qty in Cart: 0
    Price:
    $507.99
    Subtotal:
  • CSM Quilted Stainless Steel Battery Box Cover For Kenworth W900

    CSM Quilted Stainless Steel Battery Box Cover For Kenworth W900

    CHROME SHOP MAFIA

    $507.99
    Choose Option(s) to see description.Fitment* Fits Kenworth W900B 1982 thru 2004* Fits Kenworth W900B 1994 thru 2004* Fits Kenworth W900L 1990 thru 2004 * Fits Kenworth W900L 1994 thru 2004CSM 40 Inch...
    PPR_299548
    SKU:
    PPR_299548
    Length Options:
    34 Inch
    Length Options:
    40 Inch
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    Style Options:
    Quilted
    Length Options:
    45 Inch
    Make:
    Kenworth
    Availability:
    Ready To Ship
    $507.99
    Qty in Cart: 0
    Price:
    $507.99
    Subtotal:
  • CSM Sunburst Stainless Steel Battery Box Cover For Kenworth W900

    CSM Sunburst Stainless Steel Battery Box Cover For Kenworth W900

    CHROME SHOP MAFIA

    $507.99
    Choose Option(s) to see description.Fitment* Fits Kenworth W900B 1982 thru 2004* Fits Kenworth W900B 1994 thru 2004* Fits Kenworth W900L 1990 thru 2004 * Fits Kenworth W900L 1994 thru 2004CSM 40 Inch...
    PPR_299549
    SKU:
    PPR_299549
    Length Options:
    40 Inch
    Length Options:
    45 Inch
    Length Options:
    34 Inch
    Product Type:
    Frame & Chassis
    Style Options:
    Sunburst
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Make:
    Kenworth
    $507.99
    Qty in Cart: 0
    Price:
    $507.99
    Subtotal:
  • 19.375 Inch Stainless Steel Battery Box Assembly For Kenworth T600, T660, T800, W900 & W990

    19.375 Inch Stainless Steel Battery Box Assembly For Kenworth T600, T660, T800, W900 & W990

    ARANDA TRUCK ACCESSORIES

    $1,496.99 - $1,843.99
    Choose Option(s) to see description.Fitment* Fits Kenworth T600A 1986 thru 1989* Fits Kenworth T600 Aerocab 1994 thru 2007* Fits Kenworth T600B 1990 thru 2007* Fits Kenworth T660 2008 thru 2017* Fits...
    PPR_300587
    SKU:
    PPR_300587
    Length Options:
    34 Inch
    Length Options:
    40 Inch
    Material Options:
    Stainless Steel
    Finish Options:
    Polished
    Length Options:
    45 Inch
    Location:
    Made In USA
    Width Options:
    19 1/4 Inch
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $1,496.99 - $1,843.99
    Qty in Cart: 0
    Price:
    $1,496.99 - $1,843.99
    Subtotal:
  • 12 Gauge Customs Stainless Steel Step Box- Frame Mount For Kenworth

    12 Gauge Customs Stainless Steel Step Box- Frame Mount For Kenworth

    TWELVE GAUGE

    $3,198.99
    Frame Mount Stainless Steel Step Box By 12 Gauge Customs Fits KenworthAdd durability and convenience to your Kenworth with the Twelve Gauge Stainless Steel Step Box, designed for frame mounting. Made...
    02-0502034
    SKU:
    02-0502034
    Type Options:
    Frame Mount
    Product Type:
    Frame & Chassis
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    $3,198.99
    Qty in Cart: 0
    Price:
    $3,198.99
    Subtotal:
  • 12 Gauge Customs Stainless Steel Toolbox W/ Steps- Frame Mount For Kenworth

    12 Gauge Customs Stainless Steel Toolbox W/ Steps- Frame Mount For Kenworth

    TWELVE GAUGE

    $2,475.99
    Frame Mount Stainless Steel Toolbox With Steps By 12 Gauge Customs Fits KenworthAdd storage to your Kenworth with the Twelve Gauge Stainless Steel Toolbox with Steps, designed for frame mounting...
    02-0502035
    SKU:
    02-0502035
    Type Options:
    Frame Mount
    Material Options:
    Stainless Steel
    Product Type:
    Toolboxes
    Make:
    Kenworth
    $2,475.99
    Qty in Cart: 0
    Price:
    $2,475.99
    Subtotal:
  • Stainless Steel Battery Box W/ Punched Steps For Kenworth

    Stainless Steel Battery Box W/ Punched Steps For Kenworth

    AFTERMARKET

    $1,216.99 - $1,380.99
    Choose Option(s) to see description.Fitment* Fits Kenworth Cabover 1961 thru 2002* Fits Kenworth K100 Cabover 1961 thru 1967* Fits Kenworth T300 1995 thru 2007* Fits Kenworth T450 1988 thru 1997*...
    PPR_300358
    SKU:
    PPR_300358
    Product Type:
    Frame & Chassis
    Availability:
    Ready To Ship
    $1,216.99 - $1,380.99
    Qty in Cart: 0
    Price:
    $1,216.99 - $1,380.99
    Subtotal:
  • Battery Box Lower Step Bracket For Kenworth

    Battery Box Lower Step Bracket For Kenworth

    ROADWORKS

    $141.99
    Choose Option(s) to see description.Fitment* Fits Kenworth Cabover 1961 thru 2002* Fits Kenworth K100 Cabover 1961 thru 1967* Fits Kenworth T300 1995 thru 2007* Fits Kenworth T450 1988 thru 1997*...
    PPR_300355
    SKU:
    PPR_300355
    Product Type:
    Frame & Chassis
    Position:
    Passenger Side
    Position:
    Driver Side
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    Availability:
    Ready To Ship
    $141.99
    Qty in Cart: 0
    Price:
    $141.99
    Subtotal:
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Adding your products to cart

Replacement Kenworth W900 Battery Box Steps

Safety is critical when climbing into your cab. If your factory steps are cracked or slippery, upgrade to a new Kenworth W900 battery box step. We offer direct-replacement lower step panels that bolt right onto your existing battery or tool box assembly. Material Options: Choose from lightweight aluminum diamond plate for maximum grip or mirror-polished stainless steel for a show-truck finish. Enhanced Traction: Our steps feature aggressive punch-out tread patterns and deep grooves to stop boots from slipping in mud, snow, or rain. Direct Fit: Designed to replace OEM steps on 40-inch and 45-inch boxes commonly found on W900L and W900B models.

Heavy-Duty Kenworth Step Boxes

Maximize your frame rail space with our selection of Kenworth step boxes. These "saddle boxes" combine the utility of a heavy-duty tool chest with the functionality of a frame step. Versatile Storage: Perfect for storing chains, binders, fluids, and batteries while keeping your deck plate clear. Sizes for Every Rig: Available in widths ranging from 12 inches to 36 inches to fit tight frame spaces. Durability: Constructed from .125-inch thick marine-grade aluminum with weather-sealed locking T-handles to keep your equipment dry and secure.

Precision Fitment & Hard-to-Find Parts

From standard W900L AeroCab setups to vocational rig configurations, we have the sizes you need. We stock standard 30-inch, 40-inch, and 45-inch assemblies complete with lids and mounting hardware. Are you searching for a specific or older configuration, such as a Kenworth 2900 battery box style or a specific 29-inch custom size? Our parts team can help you identify the correct dimensions and mounting brackets to ensure a seamless installation on your truck frame.

Frequently Asked Questions About Kenworth W900B/W900L Tool & Battery Boxes

Will these tool and battery boxes fit my Kenworth W900B or W900L without modification?

Most boxes in this category are designed to match the mounting points and frame dimensions of the W900B and W900L models, but exact fitment can vary depending on the model year and any custom frame modifications your truck may have. We recommend checking the listed specifications and measurements for each product and comparing them to your truck before purchasing. If you are unsure, our customer service team can help confirm fitment based on your truck's details.

What materials are these boxes made from, and how do they hold up over time?

Tool and battery boxes in this category are commonly available in aluminum and steel construction, often with a diamond plate or smooth finish. Aluminum boxes tend to resist corrosion better and are lighter, while steel boxes typically offer added durability for heavier-duty use. Look at each product listing for specifics on gauge thickness and finish, since these details affect long-term performance and appearance.

How do I install a tool or battery box on my truck?

Installation typically involves mounting the box to your frame rails using brackets, bolts, or existing mounting holes, depending on the box design. Some boxes are built as direct bolt-on replacements, while others may require drilling or fabrication of mounting brackets. Always refer to the manufacturer's installation instructions included with the product, and if you are not confident in DIY installation, a professional truck shop can ensure it is mounted securely.

Can these boxes handle exposure to road salt, moisture, and daily wear?

Boxes made from aluminum generally offer better resistance to rust and corrosion compared to untreated steel, making them a solid choice for trucks that run in wet or salted road conditions. Steel boxes with a powder-coated or otherwise treated finish can also hold up well, but may require more maintenance over time to prevent surface rust, especially if the coating gets scratched or chipped.

Do these boxes come with locks, and are they secure enough to protect tools and batteries?

Many tool and battery boxes include integrated locking mechanisms or are designed to accept aftermarket locks for added security. Check the individual product description to confirm whether a lock is included or sold separately. If security is a top priority, consider a box with a lockable lid or paddle latch design to help protect your tools and batteries from theft.


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