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Peterbilt 389 Frame Light Bars & Filler Panels

Discover the best Peterbilt 389 frame light bars and filler panels at 4 State Trucks. Enhance your truck with durable, custom-designed LED light bars, frame brackets, and stainless steel filler panels. Enjoy exceptional customer service'shop now to give your rig the upgrade it deserves!
  • Product
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  • Quantity
  • Price
  • Subtotal
  • King Pin Kit W/ Composite Bushings Replaces 1436980112, SRK-112 For Watson & Chalin Suspension Systems

    King Pin Kit W/ Composite Bushings Replaces 1436980112, SRK-112 For Watson & Chalin Suspension Systems

    AUTOMANN USA

    $328.99
    Watson & Chalin Suspension King Pin KitThe King Pin Kit with Composite Bushings from Watson & Chalin provides a robust solution for worn or damaged suspension components. This comprehensive kit...
    09-051100932
    SKU:
    09-051100932
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $328.99
    Qty in Cart: 0
    Price:
    $328.99
    Subtotal:
  • FREE SHIPPING
    Blank Fiberglass Fuel Tank I Panel For Peterbilt

    Blank Fiberglass Fuel Tank I Panel For Peterbilt

    FIBERTECH

    $399.00
    Blank Fuel Tank I Panel W/ Mounting BracketsTough, reliable, and ready for the road - this Blank Fiberglass Fuel Tank I Panel is the perfect upgrade for Peterbilt trucks with 26-inch fuel tanks...
    01-0606001
    SKU:
    01-0606001
    Material Options:
    Fiberglass
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    Diameter Options:
    26 Inch
    Product Type:
    Exterior
    $399.00
    Qty in Cart: 0
    Price:
    $399.00
    Subtotal:
  • 17 Inch Stainless Steel Filter Light Bar W/ 20 Round 3/4 Inch Light Holes

    17 Inch Stainless Steel Filter Light Bar W/ 20 Round 3/4 Inch Light Holes

    ARANDA TRUCK ACCESSORIES

    $238.99
    17 Inch Filter Light Bar W/ 20 Round Light HolesUpgrade your lighting setup with the 17 Inch Stainless Steel Filter Light Bar, designed to deliver both style and heavy-duty performance. Its universal...
    29-0905712
    SKU:
    29-0905712
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Product Type:
    Exterior
    Height Options:
    17 Inch
    Light Options:
    Without Lights
    Size Options:
    18 Gauge
    Make:
    Universal Items
    $238.99
    Qty in Cart: 0
    Price:
    $238.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Bulldog HD Shock Absorber Stroke 6.42 Inch Replaces T711003, 12021286, 1202K286, 83056

    Bulldog HD Shock Absorber Stroke 6.42 Inch Replaces T711003, 12021286, 1202K286, 83056

    BULLDOG HD SHOCKS

    $65.99
    6.42 Inch Stroke Shock Absorber By Bulldog HDKeep your truck's suspension in peak condition with the Bulldog HD Shock Absorber. Featuring a 6.42-inch stroke and chrome-plated pistons, it absorbs...
    29-050000195
    SKU:
    29-050000195
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $65.99
    Qty in Cart: 0
    Price:
    $65.99
    Subtotal:
  • 10.375 X 4 X 0.75 Inch Round U-Bolt

    10.375 X 4 X 0.75 Inch Round U-Bolt

    4 STATE TRUCKS

    $54.99
    10.375 X 4 X 0.75 Inch U-BoltDepend on the 10.375 x 4 x 0.75 Inch Round U-Bolt for heavy-duty fastening with professional-grade strength. It includes a round bend, 3/4 inch - 16 threads, and...
    29-05090251
    SKU:
    29-05090251
    Product Type:
    Frame & Chassis
    Width Options:
    4 Inch
    Diameter Options:
    3/4 Inch
    Length Options:
    10 1/4 Inch
    Make:
    Universal Items
    $54.99
    Qty in Cart: 0
    Price:
    $54.99
    Subtotal:
  • Minimizer Holland 5th Wheels Slick Plate

    Minimizer Holland 5th Wheels Slick Plate

    MINIMIZER

    $353.99
    5th Wheels Slick Plate By MinimizerReduce wear and improve handling with the Minimizer Holland 5th Wheels Slick Plate, designed for the FW17 Gen2. This high-quality slick plate minimizes friction...
    29-051100034
    SKU:
    29-051100034
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $353.99
    Qty in Cart: 0
    Price:
    $353.99
    Subtotal:
  • Twelve Gauge New Generation Air Ride Air Bag

    Twelve Gauge New Generation Air Ride Air Bag

    TWELVE GAUGE

    $263.00
    Replacement New Generation Air Ride Air Bag By Twelve GaugeExperience advanced ride comfort with the Twelve Gauge New Generation Air Ride Air Bag, engineered for new air ride suspension systems. This...
    29-051000028
    SKU:
    29-051000028
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $263.00
    Qty in Cart: 0
    Price:
    $263.00
    Subtotal:
  • Merritt 72 X 34.5 Inch Diamond Plate Aluminum Deck Cover W/ Stiffeners

    Merritt 72 X 34.5 Inch Diamond Plate Aluminum Deck Cover W/ Stiffeners

    MERRITT

    $698.99
    72 X 34.5 Inch Diamond Plate Deck Cover By MerrittGive your truck a durable, professional upgrade with the Merritt Diamond Plate Aluminum Deck Cover with Stiffeners. Made from premium aluminum, the...
    159
    SKU:
    159
    Length Options:
    72 Inch
    Width Options:
    34 Inch
    Location:
    Made In USA
    Material Options:
    Aluminum
    Finish Options:
    Diamond Plate
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $698.99
    Qty in Cart: 0
    Price:
    $698.99
    Subtotal:
  • 87 Inch Stainless Steel Wrap Around Deck Plate

    87 Inch Stainless Steel Wrap Around Deck Plate

    ARANDA TRUCK ACCESSORIES

    $659.99
    87 Inch Wrap Around Deck Plate W/ Supports & HardwareDelivering strength, protection, and professional-grade construction, the 87 Inch Stainless Steel Wrap Around Deck Plate is perfect for work-ready...
    09-05030055
    SKU:
    09-05030055
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    Length Options:
    87 Inch
    Size Options:
    16 Gauge
    Make:
    Universal Items
    $659.99
    Qty in Cart: 0
    Price:
    $659.99
    Subtotal:
  • 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:
  • 5 - 6 Inch Manual Slack Adjuster

    5 - 6 Inch Manual Slack Adjuster

    AFTERMARKET

    $75.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks5- 6 Inch Manual Slack Adjuster Replaces 278106, 288542, E1116, R823005, M16WR1002, 2121135- 6 Inch...
    PPR_299470
    SKU:
    PPR_299470
    Position:
    Driver Side
    Position:
    Passenger Side
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $75.99
    Qty in Cart: 0
    Price:
    $75.99
    Subtotal:
  • Brake Shoe Return Spring For Steer Axle

    Brake Shoe Return Spring For Steer Axle

    AUTOMANN USA

    $3.80 - $6.35
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of TrucksRed Brake Shoe Spring For Eaton Steer Axle1.16 X 3.50 Inch Brake Shoe Spring* High Quality Brake Shoe...
    PPR_299466
    SKU:
    PPR_299466
    Color:
    Black
    Length Options:
    3 1/2 Inch
    Diameter Options:
    1 Inch
    Color:
    Red
    Product Type:
    Frame & Chassis
    Length Options:
    7 1/4 Inch
    Length Options:
    7 1/2 Inch
    Width Options:
    1/8 Inch
    Color:
    Blue
    Length Options:
    7 1/16 Inch
    Width Options:
    1/4 Inch
    Make:
    Universal Items
    $3.80 - $6.35
    Qty in Cart: 0
    Price:
    $3.80 - $6.35
    Subtotal:
  • 15 x 7 Inch Brake Drum W/ Bolt Hole Options

    15 x 7 Inch Brake Drum W/ Bolt Hole Options

    AFTERMARKET

    $521.99 - $537.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks15 x 7 Inch 8 Hole Brake Drum Replaces TDA03123276002, 2121123276, 031232760028 Hole 15 x 7 Inch Brake...
    PPR_299473
    SKU:
    PPR_299473
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $521.99 - $537.99
    Qty in Cart: 0
    Price:
    $521.99 - $537.99
    Subtotal:
  • 4.5 - 5.5 Inch Manual Slack Adjuster

    4.5 - 5.5 Inch Manual Slack Adjuster

    AUTOMANN USA

    $30.91
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks4.5 - 5.5 Inch Manual Slack Adjuster Replaces 278294, E2762, L1379, R822013, R824013, 035131, AX323824...
    PPR_299469
    SKU:
    PPR_299469
    Position:
    Driver Side
    Product Type:
    Frame & Chassis
    Position:
    Passenger Side
    Make:
    Universal Items
    $30.91
    Qty in Cart: 0
    Price:
    $30.91
    Subtotal:
  • 6 - 7 Inch Manual Slack Adjuster

    6 - 7 Inch Manual Slack Adjuster

    AFTERMARKET

    $65.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks6- 7 Inch Manual Slack Adjuster Replaces 279947, E2669, 2121146- 7 Inch Manual Slack Adjuster- Driver...
    PPR_299471
    SKU:
    PPR_299471
    Product Type:
    Frame & Chassis
    Position:
    Driver Side
    Position:
    Passenger Side
    Make:
    Universal Items
    $65.99
    Qty in Cart: 0
    Price:
    $65.99
    Subtotal:
  • Black Brake Shoe Return Spring For Steer Axle

    Black Brake Shoe Return Spring For Steer Axle

    AUTOMANN USA

    $7.61 - $12.71
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of TrucksBlack Brake Shoe Return Spring1.125 X 7.875 Inch Brake Shoe Return Spring* High Quality Brake Shoe...
    PPR_299467
    SKU:
    PPR_299467
    Diameter Options:
    1 Inch
    Width Options:
    1/4 Inch
    Product Type:
    Frame & Chassis
    Length Options:
    7 3/4 Inch
    Color:
    Black
    Length Options:
    7 1/2 Inch
    Make:
    Universal Items
    $7.61 - $12.71
    Qty in Cart: 0
    Price:
    $7.61 - $12.71
    Subtotal:
  • Gunite Automatic Slack Adjuster

    Gunite Automatic Slack Adjuster

    AFTERMARKET

    $98.99 - $102.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks5.5 Inch Automatic Slack Adjuster Replaces E15022, AS11385.5 Inch Gunite Type Automatic Slack Adjuster*...
    PPR_299472
    SKU:
    PPR_299472
    Product Type:
    Frame & Chassis
    Length Options:
    6 Inch
    Length Options:
    5 1/2 Inch
    Make:
    Universal Items
    $98.99 - $102.99
    Qty in Cart: 0
    Price:
    $98.99 - $102.99
    Subtotal:
  • Manual Slack Adjuster For Drive And Steer Axles

    Manual Slack Adjuster For Drive And Steer Axles

    AUTOMANN USA

    $30.90 - $33.38
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks5.5- 6.5 Inch Manual Slack Adjuster For Eaton & Meritor Drive and Steer Axles5.5- 6.5 Inch Manual Slack...
    PPR_299468
    SKU:
    PPR_299468
    Length Options:
    6 1/2 Inch
    Product Type:
    Frame & Chassis
    Diameter Options:
    1 1/2 Inch
    Make:
    Universal Items
    $30.90 - $33.38
    Qty in Cart: 0
    Price:
    $30.90 - $33.38
    Subtotal:
  • Rear Differential Breather Kit Replaces 2719507162, ZPB0507162, 507162, 513538, ETN507162, SP507162, 3947334

    Rear Differential Breather Kit Replaces 2719507162, ZPB0507162, 507162, 513538, ETN507162, SP507162, 3947334

    AUTOMANN USA

    $20.35
    Rear Differential Breather KitKeep your rear differential operating at peak efficiency with this high-quality Rear Differential Breather Kit. It comes complete with an axle vent and durable steel,...
    29-05210003
    SKU:
    29-05210003
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $20.35
    Qty in Cart: 0
    Price:
    $20.35
    Subtotal:
  • Steering Gear Kit Replaces 2500270C91, 2502009C91, 2585853C91, 2586317C91, 2592441C91, 85114034, 5543551, 5542261, 5545611, 5544861

    Steering Gear Kit Replaces 2500270C91, 2502009C91, 2585853C91, 2586317C91, 2592441C91, 85114034, 5543551, 5542261, 5545611, 5544861

    AFTERMARKET

    $197.99
    Steering Gear Input Seal KitThis Steering Gear Kit is engineered to deliver reliable performance for Sheppard M80, M90, M100, and M110 input shafts. The kit includes high-quality input seals that...
    29-05090052
    SKU:
    29-05090052
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $197.99
    Qty in Cart: 0
    Price:
    $197.99
    Subtotal:
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Shop for Peterbilt 389 Rear Light Bars

Enhance your Peterbilt 389 with high-quality stainless steel fuel tank panels, customizable LED under-body light kits, and frame glow kits. These accessories improve both the look and functionality of your truck, offering personalized styling and added visibility. Ideal for truck owners who are looking at upgrading aesthetic appeal and safety features, these parts are designed for quality, compatibility, and customization. Complete your rear cab look by pairing light bars with a polished Peterbilt deck plate to create a seamless, flush appearance.

Frequently Asked Questions About Peterbilt 389 Frame Light Bars & Filler Panels

What are frame light bars and filler panels used for on a Peterbilt 389?

Frame light bars and filler panels mount along the chassis rail between the cab and rear of the truck, or between the bumper and frame, to close visual gaps and provide a mounting location for auxiliary lighting. They combine a finished, custom appearance with functional lighting for marker, turn signal, or accent purposes.

Will a frame light bar or filler panel fit my specific Peterbilt 389 configuration?

Fitment depends on your truck's frame width, wheelbase, and existing bumper or fairing setup, since these panels are designed to fill specific gaps on the 389 chassis. Always check the listed dimensions and compatible frame length before ordering, and reach out to our team if you are unsure how a panel will fit your particular setup.

What materials and finishes are these panels available in?

Most frame light bars and filler panels are constructed from stainless steel or aluminum for durability and corrosion resistance. Common finish options include polished stainless, brushed stainless, and painted or powder-coated finishes, allowing you to match the panel to the rest of your truck's trim.

Do these panels come pre-drilled for lights, and what type of lighting do they accept?

Many filler panels and light bars come pre-drilled with mounting holes for standard round or oval LED lights, though hole size and spacing vary by product. Check the product specifications for light size and quantity before purchasing so you can order the correct lights and grommets to match.

How difficult is it to install a frame light bar or filler panel, and what wiring is involved?

Installation typically involves bolting or clamping the panel to the frame rail using existing mounting points, then running wiring for any integrated lights back to a power source and ground. Most installations can be completed with basic hand tools, but you should have a wiring diagram or basic electrical knowledge on hand if the panel includes lighting, since wire routing and connections vary by application.


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