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Peterbilt 389 Frame Steps & Acc.

Get the best Peterbilt 389 frame steps & accessories at 4 State Trucks. Choose from durable aluminum steps, fold-down steps, and step plate inserts. Options include the easy heavy-duty entry folding steps and 3-rung retractable truck steps for easy frame access. Equip your Peterbilt 389 with quality aftermarket accessories and notice the difference.
  • Product
  • Qty in Cart
  • Quantity
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  • FREE SHIPPING OVER $249
    Aluminum Frame Steps 23 Inch W/ 4 Secure Frame Mounting Holes & Width Options

    Aluminum Frame Steps 23 Inch W/ 4 Secure Frame Mounting Holes & Width Options

    ICONIC

    $220.99 - $264.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksAluminum Frame Steps 12 X 23 Inch W/ 4 Secure Frame Mounting Holes12 X 23 Inch Aluminum Frame Steps W/...
    PPR_301290
    SKU:
    PPR_301290
    Material Options:
    Aluminum
    Location:
    Made In USA
    Height Options:
    23 Inch
    Width Options:
    22 Inch
    Product Type:
    Frame & Chassis
    Width Options:
    16 Inch
    Length Options:
    8 3/4 Inch
    Width Options:
    12 Inch
    Make:
    Universal Items
    $220.99 - $264.99
    Qty in Cart: 0
    Price:
    $220.99 - $264.99
    Subtotal:
  • Chrome Plated Aluminum Step Plate - 24 X 6 Inch

    Chrome Plated Aluminum Step Plate - 24 X 6 Inch

    LIFETIME NUT COVERS

    $633.99 - $670.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksChrome Plated Aluminum Step Plate W/ Concave Edges- 24 X 6 Inch24 X 6 Inch Chrome Aluminum Step Plate...
    PPR_300585
    SKU:
    PPR_300585
    Height Options:
    6 Inch
    Product Type:
    Frame & Chassis
    Length Options:
    24 Inch
    Material Options:
    Billet Aluminum
    Finish Options:
    Chrome-Plated
    Material Options:
    Aluminum
    Make:
    Universal Items
    $633.99 - $670.99
    Qty in Cart: 0
    Price:
    $633.99 - $670.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Aluminum Frame Steps

    Aluminum Frame Steps

    PRO-TECH INDUSTRIES

    $198.79 - $308.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks12 X 24 Inch Aluminum Frame StepsAluminum Frame Steps- 4 Way Grip* High Quality Step* With 4-Way Grip*...
    PPR_300309
    SKU:
    PPR_300309
    Product Type:
    Frame & Chassis
    Length Options:
    18 Inch
    Ready To Ship:
    Yes
    Length Options:
    12 Inch
    Material Options:
    Aluminum
    Height Options:
    24 Inch
    Make:
    Universal Items
    $198.79 - $308.99
    Qty in Cart: 0
    Price:
    $198.79 - $308.99
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  • 40 Inch Steel Truck Cab Side Step For Kenworth & Peterbilt

    40 Inch Steel Truck Cab Side Step For Kenworth & Peterbilt

    DAYTON / DORMAN

    $196.99
    40 Inch Truck Cab Side StepDrivers know that strong, reliable footing is a must - and that's exactly what this steel cab side step provides. Built for Kenworth and Peterbilt trucks, this 40-inch step...
    01-0604002
    SKU:
    01-0604002
    Height Options:
    2 Inch
    Product Type:
    Frame & Chassis
    Width Options:
    4 1/4 Inch
    Length Options:
    40 Inch
    Material Options:
    Steel
    Make:
    Peterbilt
    Make:
    Kenworth
    $196.99
    Qty in Cart: 0
    Price:
    $196.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Turnpike Truck Trim 4 X 20 Inch 430 Stainless Steel Step Plate

    Turnpike Truck Trim 4 X 20 Inch 430 Stainless Steel Step Plate

    TURNPIKE TRUCK TRIM

    $127.99
    20 X 4 X 0.5 Inch Stainless Steel Step Plate With Tape Mount* High Quality Step Plate* Made Of 430 Stainless Steel * Provides Better Traction On Horizontal Steps And Surfaces* Tread Pattern*...
    09-050500002
    SKU:
    09-050500002
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Height Options:
    1/2 Inch
    Width Options:
    4 Inch
    Length Options:
    20 Inch
    $127.99
    Qty in Cart: 0
    Price:
    $127.99
    Subtotal:
  • Step Plates 22 X 6.5 Inch Stainless Steel - Pair

    Step Plates 22 X 6.5 Inch Stainless Steel - Pair

    SPARETIME FAB

    $290.99
    Pair 22 X 6.5 Inch Stainless Steel Step PlatesBoost both style and safety on your rig with these 22 x 6.5 Inch Stainless Steel Step Plates, designed to deliver a dependable, high-quality upgrade...
    09-050500049
    SKU:
    09-050500049
    Product Type:
    Frame & Chassis
    Width Options:
    6 1/2 Inch
    Material Options:
    Stainless Steel
    Length Options:
    22 Inch
    Make:
    Universal Items
    $290.99
    Qty in Cart: 0
    Price:
    $290.99
    Subtotal:
  • 24 Inch Chrome Plated Aluminum Step Plate W/ Logo Cutout Rubber Insert For Peterbilt

    24 Inch Chrome Plated Aluminum Step Plate W/ Logo Cutout Rubber Insert For Peterbilt

    LIFETIME NUT COVERS

    $697.99
    24 Inch Step Plate With Logo Cutout Rubber InsertAdd a bold, professional finish to your ride with this high-quality 24 Inch Chrome Step Plate for Peterbilt models. The billet aluminum body shines...
    01-050500008
    SKU:
    01-050500008
    Finish Options:
    Chrome-Plated
    Location:
    Made In USA
    Length Options:
    24 Inch
    Material Options:
    Billet Aluminum
    Height Options:
    6 Inch
    Make:
    Peterbilt
    Product Type:
    Frame & Chassis
    $697.99
    Qty in Cart: 0
    Price:
    $697.99
    Subtotal:
  • Smooth Aluminum Step Box W/ Smooth Lid- 30 X 29.13 X 24 Inch

    Smooth Aluminum Step Box W/ Smooth Lid- 30 X 29.13 X 24 Inch

    ICONIC

    $879.99
    30 X 29.13 X 24 Inch Smooth Aluminum Step Box W/ Smooth LidOptimize your truck storage with this 30 x 29.13 x 24 Inch Smooth Aluminum Step Box. Featuring a smooth aluminum lid, step tread, and...
    09-020100555
    SKU:
    09-020100555
    Height Options:
    24 Inch
    Finish Options:
    Smooth
    Width Options:
    29 Inch
    Product Type:
    Toolboxes
    Length Options:
    30 Inch
    Material Options:
    Aluminum
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $879.99
    Qty in Cart: 0
    Price:
    $879.99
    Subtotal:
  • 24 X 5 Inch Step Mat

    24 X 5 Inch Step Mat

    AUTOMANN USA

    $28.09
    Step Mat- 24 X 5 InchKeep your truck steps safe and slip-free with this 24 X 5 Inch Step Mat. Measuring 24 inches long and 5 inches wide, this high-quality mat provides durable, anti-slip protection...
    09-05050001
    SKU:
    09-05050001
    Width Options:
    5 Inch
    Length Options:
    24 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $28.09
    Qty in Cart: 0
    Price:
    $28.09
    Subtotal:
  • Roadworks Stainless Steel Cross Member Frame Step W/ 2 Steps & 7.875 Inch Bolt Spacing For Peterbilt

    Roadworks Stainless Steel Cross Member Frame Step W/ 2 Steps & 7.875 Inch Bolt Spacing For Peterbilt

    ROADWORKS

    $502.99
    Stainless Steel Cross Member Frame Step W/ 2 Steps & 7.875 Inch Bolt Spacing By Roadworks Fits PeterbiltEnsure safer access to your Peterbilt truck with these heavy-duty stainless steel 2-step...
    01-050500001
    SKU:
    01-050500001
    Product Type:
    Frame & Chassis
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    $502.99
    Qty in Cart: 0
    Price:
    $502.99
    Subtotal:
  • Iowa Customs Passenger & DPF Cover Kit Stainless Steel W/ Step Trim & Center Panel For Peterbilt 389

    Iowa Customs Passenger & DPF Cover Kit Stainless Steel W/ Step Trim & Center Panel For Peterbilt 389

    IOWA CUSTOMS

    $212.99
    Stainless Steel Passenger & DPF Cover Kit W/ Step Trim & Center Panel By Iowa Customs Fits Peterbilt 389Add trim to your DPF-Emissions Box with this stainless steel kit for the passenger side of your...
    01-050249
    SKU:
    01-050249
    Position:
    Passenger Side
    Location:
    Made In USA
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Finish Options:
    Polished
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    $212.99
    Qty in Cart: 0
    Price:
    $212.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Herd Frame Step 24 Inch Black

    Herd Frame Step 24 Inch Black

    HERD BUMPERS

    Now: $199.35
    Was: $309.99
    24 Inch Frame Step With Black Coating By Herd* High Quality Frame Step* Black Coating * 24 Inch Width* Corrosion Resistant* Aluminum Treads* Made In USA* Sold Individually* Warranty On Frame Steps...
    09-0505303
    SKU:
    09-0505303
    Width Options:
    24 Inch
    Color:
    Black
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $199.35
    Was: $309.99
    Qty in Cart: 0
    Price:
    Now: $199.35
    Was: $309.99
    Subtotal:
  • Herd Frame Step 18 Inch Black

    Herd Frame Step 18 Inch Black

    HERD BUMPERS

    $281.99
    18 Inch Frame Step With Black Coating By Herd* High Quality Frame Step* Black Coating * 18 Inch Width* Corrosion Resistant* Aluminum Treads* Sold Individually* Warranty On Frame Steps Against Defects...
    09-0505302
    SKU:
    09-0505302
    Color:
    Black
    Width Options:
    18 Inch
    Make:
    Universal Items
    $281.99
    Qty in Cart: 0
    Price:
    $281.99
    Subtotal:
  • Herd Frame Step 12 Inch Black

    Herd Frame Step 12 Inch Black

    HERD BUMPERS

    $264.99
    12 Inch Frame Step With Black Coating By Herd* High Quality Frame Step* Black Coating * 12 Inch Width* Corrosion Resistant* Aluminum Treads* Made In USA* Sold Individually* Warranty On Frame Steps...
    09-0505301
    SKU:
    09-0505301
    Color:
    Black
    Width Options:
    12 Inch
    Make:
    Universal Items
    $264.99
    Qty in Cart: 0
    Price:
    $264.99
    Subtotal:
  • CSM Tire Tread Step Plates 5 X 20 Inch

    CSM Tire Tread Step Plates 5 X 20 Inch

    CHROME SHOP MAFIA

    $209.99 - $276.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksCSM Unpainted Tire Tread Step Plates 5 X 20 InchChrome Shop Mafia Tire Tread Step Plates* High Quality...
    PPR_299016
    SKU:
    PPR_299016
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Location:
    Made In USA
    Height Options:
    20 Inch
    Finish Options:
    Paintable
    Width Options:
    5 Inch
    Ready To Ship:
    Yes
    $209.99 - $276.99
    Qty in Cart: 0
    Price:
    $209.99 - $276.99
    Subtotal:
  • CSM Truckin Aint Easy Step Plates 5 X 20 Inch

    CSM Truckin Aint Easy Step Plates 5 X 20 Inch

    CHROME SHOP MAFIA

    $209.99 - $276.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksCSM Truckin Aint Easy Unpainted Step Plates 5 X 20 Inch5 X 20 Inch Truckin Aint Easy Step Plates By...
    PPR_299017
    SKU:
    PPR_299017
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Width Options:
    5 Inch
    Location:
    Made In USA
    Height Options:
    20 Inch
    Ready To Ship:
    Yes
    $209.99 - $276.99
    Qty in Cart: 0
    Price:
    $209.99 - $276.99
    Subtotal:
  • CSM Keep On Truckin Step Plates 5 X 20 Inch

    CSM Keep On Truckin Step Plates 5 X 20 Inch

    CHROME SHOP MAFIA

    $209.99 - $276.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksCSM Keep On Truckin Unpainted Step Plates 5 X 20 Inch5 X 20 Inch Keep On Truckin Plates By Chrome Shop...
    PPR_299018
    SKU:
    PPR_299018
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Width Options:
    5 Inch
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Height Options:
    20 Inch
    $209.99 - $276.99
    Qty in Cart: 0
    Price:
    $209.99 - $276.99
    Subtotal:
  • SS Frame Mount Steps 12 Inch

    SS Frame Mount Steps 12 Inch

    VALLEY CHROME PLATING

    $213.99
    12 Inch SS Steps With Chrome Steel Sides By Valley ChromeAccess the frame area of your truck with ease using 12-inch truck frame steps! Simple to install and designed for practicality, these steps...
    09-050515
    SKU:
    09-050515
    Length Options:
    12 Inch
    Material Options:
    Stainless Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $213.99
    Qty in Cart: 0
    Price:
    $213.99
    Subtotal:
  • Smooth Stainless Steel DPF Cover For Peterbilt 389 2008 - 2023

    Smooth Stainless Steel DPF Cover For Peterbilt 389 2008 - 2023

    VALLEY CHROME PLATING

    $401.99
    Peterbilt 389 SS DPF CoverHelp protect your diesel particulate filter (DPF) with the Smooth Stainless Steel DPF Cover. Stay compliant, prevent pricey fixes, and secure your investment for the long...
    01-050240
    SKU:
    01-050240
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Frame & Chassis
    $401.99
    Qty in Cart: 0
    Price:
    $401.99
    Subtotal:
  • Diamond Plated Aluminum Step Box With Gaiter Door & Air Shock By Sturdy-Lite

    Diamond Plated Aluminum Step Box With Gaiter Door & Air Shock By Sturdy-Lite

    STURDY-LITE

    $738.99 - $815.99
    Choose Option(s) to see description.Sturdy-Lite 24 Inch Diamond Plated Aluminum Step Box With Gator Door & Air ShockSturdy-Lite 24 Inch Diamond Plated Aluminum Step Box* High Quality Step Box* 24...
    PPR_298998
    SKU:
    PPR_298998
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $738.99 - $815.99
    Qty in Cart: 0
    Price:
    $738.99 - $815.99
    Subtotal:
  • Total: items /

Adding your products to cart

Climbing in and out of your rig shouldn't be a hassle. With the right aftermarket frame steps and accessories, your Peterbilt 389 gets a major upgrade in safety, function, and convenience.

Climb Into Your Peterbilt 389 Truck with Ease

These parts aren’t just for looks—they’re built to handle daily use on a working truck. Whether you need solid footing during pre-trip checks or easier cab access during a long haul, we’ve got the gear to help you get it done right. Here’s what you’ll find in this category: - Aluminum steps: Lightweight, strong, and corrosion-resistant - stainless steel frame-mounted steps: Built tough to stand up to the elements - Retractable step ladders: Fold out when you need them, tuck away when you don’t - Slip-resistant tread patterns: Extra grip for wet or icy conditions - Chrome and blacked-out finishes: Match your rig’s style while boosting functionality These steps are engineered for heavy duty use, with high weight capacity and easy install options that fit your Peterbilt 389 like a glove. You can also pair it with other frame-and-chassis upgrades like Peterbilt 389 frame light bars or filler panels and ergonomic Peterbilt 389 deck plates. Don’t risk slips, strains, or busted OEM gear. Upgrade with aftermarket steps that give you a safer climb, every time.

Frequently Asked Questions About Peterbilt 389 Frame Steps & Acc.

What are frame steps and why does my Peterbilt 389 need them?

Frame steps mount to the truck's frame rail behind the cab or near the fuel tanks and fairings, giving drivers a secure foothold for climbing up to check fluids, clean windows, access the fifth wheel, or reach the top of the fuel tanks. They're a practical accessory for everyday cab-over-frame access on a 389.

Will these steps fit my specific frame rail width and fuel tank setup?

Fitment can vary depending on your truck's frame rail spacing, fuel tank size, and whether you have factory or aftermarket fairings. Most listings note the specific frame width or tank diameter they're designed for, so double-check those measurements against your truck before ordering, and reach out to us if you're unsure which option matches your configuration.

What materials and finishes are available, and how do they hold up?

Frame steps are commonly offered in aluminum, steel, or stainless steel, with finishes ranging from raw or polished aluminum to chrome-plated or powder-coated steel. Stainless and chrome options tend to resist corrosion and clean up easier, while raw aluminum is lighter but may require more upkeep to keep looking new. Choose based on how much maintenance you're willing to do versus the look you want.

Are these steps easy to install, and what hardware or tools are needed?

Most frame steps bolt directly to existing holes in the frame rail or attach with brackets and mounting hardware included in the kit. Basic hand tools are typically all that's required, though some brackets may need drilling if your frame doesn't have pre-existing holes. If you're not confident with the install, a truck shop can usually mount them quickly.

Do frame steps affect ground clearance or interfere with other components?

Properly sized frame steps are designed to sit close to the frame rail without hanging low enough to cause clearance issues on most road conditions. That said, always check for interference with air lines, fuel lines, battery boxes, or exhaust components in your specific setup before finalizing placement, since aftermarket fairings and tank sizes can change available space.


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