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    What Is DEF on a Semi Truck? Fluid, Filters, Problems & Maintenance(Post)

    What Is a DEF (Diesel Exhaust Fluid) Filter? A DEF (Diesel Exhaust Fluid) filter protects the SCR (Selective Catalytic Reduction) system by removing dirt, debris, and contaminants from the DEF supply

    How A/C Driers Work on Your Semi Truck(Post)

    Ever wondered why your semi truck’s AC runs smoothly, or why it suddenly stops working? Your A/C receiver, drier, or accumulator is the unsung heroe of your commercial vehicle.  Maintaining your A/C d

    Buyers Guide to Aftermarket Air Breather Panels(Post)

    Decorative light panels are an outstanding way to start personalizing your truck. Air breather panels offer tremendous visual appeal and can elevate your big rig's nighttime appearance. There are five

    Seasonal Semi Truck Maintenance Checklist(Post)

    Freezing winter weather temperatures, heavy snow, ice, and road salt take an unseen toll on your semi truck. Corrosion directly affects your semi truck brakes, electrical terminals,  suspension mounts

    What Does the FASS Fuel System Do? (Post)

    Diesel fuel often contains air, vapor, water, and fine debris - harmful contaminants that hurt fuel pressure stability, injector life, and injection pump health. FASS (fuel air separation system) help

    Preventative Maintenance Checklist for Semi Trucks(Post)

    In this post, we’ll cover the need for a semi truck preventative maintenance checklist, and some of the common replacement parts you can buy online and ship directly to your specified address. Key Ta

    5 Unique Lug Nut Cover Styles to Give Your Truck a More Polished Look(Post)

    Semi truck lug nut covers aren’t just useful in protecting your lug nut and wheel studs, but they’re a great way to achieve a more polished, cleaner look at a low-cost.  Here are some of the coolest-l

    Signs of a Failing Heater Box & What to Do About It(Post)

    Experiencing refreshing cool air in the summer and warm air in the winter is nearly priceless when behind the wheel of a big rig for 11 hours a day. However, if your A/C heater box isn’t working, your

    Semi Truck DPF Systems: How They Work, Problems, Regeneration & Parts(Post)

    Let’s break down how to maintain peak emissions performance and avoid excessive repairs on big truck exhausts. Key Takeaways DPFs trap soot, while DEF reduces harmful nitrogen oxide emissions. Watch

    What Year Did Semi Trucks Get DPF Systems?(Post)

    When Did Semi Trucks Start Using DPF Systems? EPA Rules Explained Diesel particulate filters (DPFs) became standard equipment on new U.S. heavy-duty diesel trucks starting with the 2007 engine model y

    Diesel Truck Engine Maintenance Guide(Post)

    Semi truck engines can last up to one million miles, or more, before they need to be rebuilt or replaced.  During their lifespan, engine system parts experience a lot of heat and pressure, eventually

    Spring Semi-Truck Maintenance: 5 Checks to Prevent Expensive Repairs(Post)

    Winter weather causes corrosion, contamination, wear, and hidden damage. Spring is a great time to inspect the truck thoroughly and stop small problems from becoming giant disasters.  Five Spring Main

    How to Buy the Right Peterbilt 379 Radiator(Post)

    If you want to keep your diesel engine from overheating you need a well-functioning replacement Peterbilt radiator to properly carry the hot coolant through small passages, transfer engine heat into t

    Best Semi Truck Emergency Kit Accessories to Deter Roadside Breakdowns(Post)

    It’s cold, and late, and you’re suddenly stalled at the side of the road because your semi truck won’t start or won’t budge. If this sounds like a truck driver’s worst nightmare, it’s because it is. 

    What are Semi Truck Winter Fronts?(Post)

    A semi-truck winter front is a heavy-duty, weather-resistant cover designed to mount directly over a truck’s front grille. Typically manufactured from reinforced vinyl, canvas, or quilted fabric, it s

    Wet Line Kits for Semi Trucks 101: The Basics Explained(Post)

    Ready to transform your rig into a hydraulic powerhouse? A semi-truck wet line kit can do the trick. One of these will turn your truck from a normal highway hauler into a workhorse capable of handlin

    How to Winterize a Semi Truck: The Complete Driver Checklist(Post)

    Cold winter weather, freezing temperatures, snow-covered roads, and adverse weather conditions wreak havoc on semi truck engines and equipment, and can lead to costly repairs if damage occurs. Don’t c

    Spare Semi Truck Parts Every Owner-Operator Should Keep(Post)

    For owner-operators, having the right spare parts on hand is the difference between experiencing devastating downtime and productive uptime. You don’t want to be caught on the side of the road waiting

    What are the Most Frequently Replaced Semi Truck Parts?(Post)

    The parts of a class 8 truck that see the most frequent repair and replacement are areas where tons of heat, friction, and pressure occur. No-brainer, right?  Here are some of the most frequently repl

    Semi Truck DPF Box Covers & Slipcovers: Fitment Guide(Post)

    Semi Truck DPF Box Covers: Types, Fitment & Replacement What Is a DPF Box Cover on a Semi Truck? DPF box covers are exterior panels designed to conceal or protect the aftertreatment housing. They do n

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  • FREE SHIPPING OVER $249
    FF2200FLG Cummins ISX Fuel Filter

    FF2200FLG Cummins ISX Fuel Filter

    OPP - ORIGINAL PARTS PROGRAM

    $32.90
    Fleetguard Filter-Fuel ID: FF2200* High Quality Fuel Filter* Sold Individually* Warranty On Fuel Filters Against Defects In Workmanship & Material From Date Of Purchase*** This Is An OEM Replacement...
    FF2200FLG
    SKU:
    FF2200FLG
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $32.90
    Qty in Cart: 0
    Price:
    $32.90
    Subtotal:
  • Front Door Glass Run Weather Strip Channel Replaces OEM R70-6013-2200 For Peterbilt

    Front Door Glass Run Weather Strip Channel Replaces OEM R70-6013-2200 For Peterbilt

    OPP - ORIGINAL PARTS PROGRAM

    $91.99
    Replacement Peterbilt Weather Strip Channel For Glass Run New Style Door With No VentInstall this Peterbilt door glass run channel to protect your windows, stop leaks, and eliminate rattles. This...
    R7060132200
    SKU:
    R7060132200
    Color:
    Black
    Product Type:
    Exterior
    Make:
    Peterbilt
    $91.99
    Qty in Cart: 0
    Price:
    $91.99
    Subtotal:
  • BESTfit Diamond Plate Aluminum Tool Box W/ Smooth Sides & New Style Step 31 X 30 X 15 Inch For Peterbilt 378, 379, 389 Glider

    BESTfit Diamond Plate Aluminum Tool Box W/ Smooth Sides & New Style Step 31 X 30 X 15 Inch For Peterbilt 378, 379, 389 Glider

    BESTFIT TRUCK PARTS

    $866.99
    31 X 30 X 15 Inch Diamond Plate Aluminum Tool Box W/ Smooth Sides & New Style Step By BESTfit Fits Peterbilt 378, 379, 389 GliderLooking for a sturdy, reliable toolbox for your Peterbilt 378, 379, or...
    01-05022000
    SKU:
    01-05022000
    Length Options:
    31 Inch
    Material Options:
    Aluminum
    Finish Options:
    Diamond Plate
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    Height Options:
    15 Inch
    Width Options:
    30 Inch
    $866.99
    Qty in Cart: 0
    Price:
    $866.99
    Subtotal:
  • Plain Black Mesh Bug Screen W/ Black Vinyl For Peterbilt 389 Models

    Plain Black Mesh Bug Screen W/ Black Vinyl For Peterbilt 389 Models

    ROBERT JAMES ENTERPRISES

    $99.99
    Peterbilt 389 Plain Black Bug Screen W/ Heavy Duty Trim By Robert James EnterprisesAre you looking to find a highly durable bug screen for your Peterbilt Truck? 4 State Trucks offers this quality...
    01-1204220005
    SKU:
    01-1204220005
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Color:
    Black
    Make:
    Peterbilt
    Material Options:
    Vinyl
    Product Type:
    Exterior
    $99.99
    Qty in Cart: 0
    Price:
    $99.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Poly Upper Front Fairing Bushing For Kenworth T660 2008 -2017

    Poly Upper Front Fairing Bushing For Kenworth T660 2008 -2017

    AUTOMANN USA

    $26.98
    Kenworth Poly Upper Front Mount BushingKeep your Kenworth T660 front fairing properly aligned and secure with the Poly Upper Front Fairing Bushing. With dimensions of 2.671-inch length, 2.406-inch...
    02-05122005
    SKU:
    02-05122005
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $26.98
    Qty in Cart: 0
    Price:
    $26.98
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  • Kenworth W900A Replacement Headliner Upholstery By BESTfit

    Kenworth W900A Replacement Headliner Upholstery By BESTfit

    BESTFIT TRUCK PARTS

    $470.99
    BESTfit Replacement Fiberglass Headliner InsertThe Economy Fiberglass Original Style Replacement Interior Headliner is an ideal option for Kenworth W900A owners looking to refresh their cab's ceiling...
    02-152200
    SKU:
    02-152200
    Truck Class:
    Heavy Duty
    Material Options:
    Fiberglass
    Make:
    Kenworth
    Product Type:
    Interior
    Finish Options:
    Paintable
    $470.99
    Qty in Cart: 0
    Price:
    $470.99
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  • Stainless Steel Side Fairing Panel Set W/ 28 P1 Amber Lights For Freightliner Cascadia

    Stainless Steel Side Fairing Panel Set W/ 28 P1 Amber Lights For Freightliner Cascadia

    PHOENIX DESIGN

    $719.99
    6 Piece Front, Rear & Center Side Fairing Panel Set W/ 14 Amber LED Amber Lens Lights Per Side* High Quality Side Fairing Panel* Made Of 304 Stainless Steel* 57 Inch Length* Lights 14 Per Side* Amber...
    03-05122007
    SKU:
    03-05122007
    Truck Class:
    Heavy Duty
    Color:
    Amber
    Material Options:
    Stainless Steel
    Make:
    Freightliner
    Product Type:
    Frame & Chassis
    $719.99
    Qty in Cart: 0
    Price:
    $719.99
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  • 18 X 32.5 Inch Vertical Diamond Pattern Quilted Vinyl Fender Guard W/ Snaps On Side, Top - Wine Color

    18 X 32.5 Inch Vertical Diamond Pattern Quilted Vinyl Fender Guard W/ Snaps On Side, Top - Wine Color

    ROBERT JAMES ENTERPRISES

    $218.99
    Wine Colored Quilted Vinyl Fender Guard W/ Snaps On Side & Top - Not BottomAdd an extra layer of protection to your fenders with this pair of front fender covers by Robert James Enterprises. They are...
    09-112200002
    SKU:
    09-112200002
    Width Options:
    32 Inch
    Location:
    Made In USA
    Material Options:
    Vinyl
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Product Type:
    Rear Fenders
    $218.99
    Qty in Cart: 0
    Price:
    $218.99
    Subtotal:
  • FREE SHIPPING OVER $249
    CSM 1:32 Blue Kenworth W900 W/ Flatbed Trailer Hauling A Front Loader Red Farm Tractor Diecast Model

    CSM 1:32 Blue Kenworth W900 W/ Flatbed Trailer Hauling A Front Loader Red Farm Tractor Diecast Model

    CHROME SHOP MAFIA

    $57.19
    Chrome Shop Mafia 1:32 Scale Kenworth W900 Semi Truck in Blue with Flatbed Trailer and Red Farm Tractor with Front Loader Die-Cast Model* High Quality Toy* Die-Cast With Plastic* Blue Flatbed...
    09-220000016
    SKU:
    09-220000016
    Truck Class:
    Universal
    Color:
    Blue
    Make:
    Universal Items
    Product Type:
    Apparel
    Ready To Ship:
    Yes
    $57.19
    Qty in Cart: 0
    Price:
    $57.19
    Subtotal:
  • Stainless Steel Bug Deflector For Volvo VNL Gen I/ Gen II

    Stainless Steel Bug Deflector For Volvo VNL Gen I/ Gen II

    UNITED PACIFIC

    $245.99
    SS Bug Deflector* High Quality Bug Deflector* Stainless Steel* Drilling Of Mounting Holes Through Hood Required* Provides A Classy And More Forgiving Alternative To Plastic Bug Deflectors*...
    13-12200003
    SKU:
    13-12200003
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Volvo
    Finish Options:
    Polished
    Product Type:
    Hood Parts & Acc.
    $245.99
    Qty in Cart: 0
    Price:
    $245.99
    Subtotal:
  • Bostrom Seat PR10 III Hi Back LoPro Seat W/ Dual Arms, Air Lumbar Support - Black Ultraleather

    Bostrom Seat PR10 III Hi Back LoPro Seat W/ Dual Arms, Air Lumbar Support - Black Ultraleather

    BOSTROM TRUCK SEATS

    $1,435.99
    Black Ultra-Leather LoPro 910 Truck Seat W/ Dual 16 Inch Armrests and Hi-Back Design* High Quality Seat* Ultra-Leather* Black* Hi Back* Features:  - 16 Inch Dual Armrest   - With 6 Inch Ride Zone  -...
    9220029900
    SKU:
    9220029900
    Truck Class:
    Heavy Duty
    Product Type:
    Seats
    Material Options:
    Ultra Leather
    Make:
    Universal Items
    $1,435.99
    Qty in Cart: 0
    Price:
    $1,435.99
    Subtotal:
  • Stainless Steel Trim On Rear Back Edge Of Side Fairing With Light HolesBy CSM For Peterbilt 579 Gen II

    Stainless Steel Trim On Rear Back Edge Of Side Fairing With Light HolesBy CSM For Peterbilt 579 Gen II

    CHROME SHOP MAFIA

    $146.99
    Peterbilt 579 Gen II SS Trim On Rear Back Edge Of Side Fairing By Chrome Shop MafiaThese stainless steel trims are designed for the rear back edge of the side fairing on the Peterbilt 579 Gen II 2022...
    01-05122004
    SKU:
    01-05122004
    Material Options:
    Stainless Steel
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Make:
    Peterbilt
    $146.99
    Qty in Cart: 0
    Price:
    $146.99
    Subtotal:
  • Stainless Steel Bug Shield For Peterbilt 379 Long Hood 1987-2007

    Stainless Steel Bug Shield For Peterbilt 379 Long Hood 1987-2007

    VALLEY CHROME PLATING

    $250.99
    Stainless Peterbilt 379 Long Hood Bug Shield* High Quality Bug Shield * Stainless Steel* Sold Individually* Warranty On Bug Shields Against Defects In Workmanship & Material From Date Of Purchase***...
    01-12200007
    SKU:
    01-12200007
    Product Type:
    Hood Parts & Acc.
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    $250.99
    Qty in Cart: 0
    Price:
    $250.99
    Subtotal:
  • Stainless Steel Fan Script Plate For Dashboard Control Knob - Stick On

    Stainless Steel Fan Script Plate For Dashboard Control Knob - Stick On

    GRAND GENERAL

    $4.92
    Dash Knob Fan Script Plate - Plate Only* High Quality Script Plate* Stainless Steel* With Fan Script* Sold Individually* Warranty On Script Plates Against Defects In Workmanship & Material From Date...
    09-1502200
    SKU:
    09-1502200
    Truck Class:
    Heavy Duty
    Product Type:
    Interior
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $4.92
    Qty in Cart: 0
    Price:
    $4.92
    Subtotal:
  • Chrome Plastic Lady Waving Accent

    Chrome Plastic Lady Waving Accent

    GRAND GENERAL

    $9.65
    Chrome Lady Waving Accent* High Quality Waving Accent* Waving Sitting Lady* With Strong 3 Way Suction Cup And Spring* Chrome Plastic* 5-1/4 Inch Height* 3-1/4 Inch Width* Sold As Pair* Warranty On...
    09-220000034
    SKU:
    09-220000034
    Material Options:
    Plastic/Poly
    Finish Options:
    Chrome-Plated
    Product Type:
    Apparel
    Make:
    Universal Items
    Width Options:
    3 1/4 Inch
    Height Options:
    5 Inch
    Ready To Ship:
    Yes
    $9.65
    Qty in Cart: 0
    Price:
    $9.65
    Subtotal:
  • Aeroshield Stainless Steel Hood Protector For Western Star

    Aeroshield Stainless Steel Hood Protector For Western Star

    BELMOR

    $272.99
    Aeroshield Stainless Steel Wrap- Around Hood Protector* High Quality Hood Protector* Aeroshield Wrap-Around Design* Mirror Finish* 18 Gauge 304 Stainless Steel* Sold Individually* Warranty On Hood...
    14-12200006
    SKU:
    14-12200006
    Finish Options:
    Mirror
    Size Options:
    18 Gauge
    Style Options:
    Wrap Around End
    Material Options:
    Stainless Steel
    Product Type:
    Hood Parts & Acc.
    Make:
    Western Star
    $272.99
    Qty in Cart: 0
    Price:
    $272.99
    Subtotal:
  • 57 Inch Stainless Steel Bug Shield For Western Star 5700XE

    57 Inch Stainless Steel Bug Shield For Western Star 5700XE

    PANELITE

    $287.99
    Western Star 5700XE 57 Inch Bug ShieldDefend your Western Star 5700XE against debris and road hazards with this 57 Inch Stainless Steel Bug Shield. Crafted from durable 304 stainless steel, it offers...
    14-12200014
    SKU:
    14-12200014
    Width Options:
    57 Inch
    Material Options:
    Stainless Steel
    Product Type:
    Hood Parts & Acc.
    Make:
    Western Star
    $287.99
    Qty in Cart: 0
    Price:
    $287.99
    Subtotal:
  • Stainless Steel 430 Polished Bug Deflector For Peterbilt 367, 388, 389

    Stainless Steel 430 Polished Bug Deflector For Peterbilt 367, 388, 389

    UNITED PACIFIC

    $241.99
    Peterbilt Heavy Duty SS Bug Deflector* High Quality Bug Deflector* Made Of Stainless Steel * Drilling Of Mounting Holes Through Hood Required* Provides A Classy And More Forgiving Alternative To...
    01-12200000
    SKU:
    01-12200000
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Hood Parts & Acc.
    Ready To Ship:
    Yes
    $241.99
    Qty in Cart: 0
    Price:
    $241.99
    Subtotal:
  • Stainless Steel Bug Deflector For Kenworth T800

    Stainless Steel Bug Deflector For Kenworth T800

    UNITED PACIFIC

    $184.99
    Kenworth T800 SS Bug Deflector* High Quality Bug Deflector* Stainless Steel * Drilling Of Mounting Holes Through Hood Required* Provides A Classy And More Forgiving Alternative To Plastic Bug...
    02-12200002
    SKU:
    02-12200002
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    Product Type:
    Hood Parts & Acc.
    $184.99
    Qty in Cart: 0
    Price:
    $184.99
    Subtotal:
  • Bug Screen Grille Cover For International WorkStar 7000 2006-Current

    Bug Screen Grille Cover For International WorkStar 7000 2006-Current

    BELMOR

    $66.99
    Bug Screen Grille Cover Fits International 7000BELMOR Bug Screens help to keep your trucks grille clean and protect your radiator and other key engine and cooling components from bugs and other small...
    07-1204220000
    SKU:
    07-1204220000
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Make:
    International
    Product Type:
    Hood Parts & Acc.
    $66.99
    Qty in Cart: 0
    Price:
    $66.99
    Subtotal:
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