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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:
  • Stainless Steel Aero Style Grille Surround For Freightliner Cascadia 116, 126 2018-Current

    Stainless Steel Aero Style Grille Surround For Freightliner Cascadia 116, 126 2018-Current

    TRUX ACCESSORIES

    $477.99
    Stainless Steel Aero Style Grille Surround Fits Freightliner Cascadia 116 & 126Do you want an affordable and quality surround trim for your grille? 4 State Trucks offers this great looking and well...
    03-122000002
    SKU:
    03-122000002
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Freightliner
    Product Type:
    Hood Parts & Acc.
    $477.99
    Qty in Cart: 0
    Price:
    $477.99
    Subtotal:
  • Stainless Steel Grille Deflector For Freightliner Classic 1990-2010

    Stainless Steel Grille Deflector For Freightliner Classic 1990-2010

    PHOENIX DESIGN

    $273.99
    Stainless Steel Grille Deflector Fits Freightliner Classic 1990-2010* High Quality Grille Deflector * Made Of 304 Stainless Steel * XL* Sold As Pair* Made In USA* Warranty On Grille Deflector Against...
    03-122000004
    SKU:
    03-122000004
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Freightliner
    Product Type:
    Hood Parts & Acc.
    $273.99
    Qty in Cart: 0
    Price:
    $273.99
    Subtotal:
  • Power Style Hood Wing 9 X 42 Inch Stainless Steel

    Power Style Hood Wing 9 X 42 Inch Stainless Steel

    VALLEY CHROME PLATING

    $412.99
    Valley Chrome Hood WingSave on fuel costs and help keep your rig stabilized during windy conditions with this highly functional stainless steel Valley Chrome Hood Wing at 4 State Trucks. It is...
    09-12200
    SKU:
    09-12200
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Finish Options:
    Polished
    Material Options:
    Stainless Steel
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    $412.99
    Qty in Cart: 0
    Price:
    $412.99
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  • FREE SHIPPING OVER $249
    CSM 1:32 Scale Peterbilt 379 Chrome Pot Belly Livestock W/ White Cab Diecast Model

    CSM 1:32 Scale Peterbilt 379 Chrome Pot Belly Livestock W/ White Cab Diecast Model

    CHROME SHOP MAFIA

    $65.99
    Chrome Shop Mafia 1:32 Long Hauler Peterbilt 379 Truck Model Truck in White With Pot Belly Livestock Trailer in Chrome* High Quality Model Toy* Peterbilt 379 Pot Belly Livestock* Cab is Diecast...
    09-220000011
    SKU:
    09-220000011
    Color:
    White
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Apparel
    Ready To Ship:
    Yes
    $65.99
    Qty in Cart: 0
    Price:
    $65.99
    Subtotal:
  • Stainless Steel Bug Deflector For Peterbilt 379

    Stainless Steel Bug Deflector For Peterbilt 379

    UNITED PACIFIC

    $203.99
    Peterbilt 379 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...
    01-12200003
    SKU:
    01-12200003
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Finish Options:
    Polished
    Product Type:
    Hood Parts & Acc.
    $203.99
    Qty in Cart: 0
    Price:
    $203.99
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  • 430 Stainless Steel Bug Deflector For Freightliner Century 112, 120

    430 Stainless Steel Bug Deflector For Freightliner Century 112, 120

    UNITED PACIFIC

    $311.99
    Freightliner 430 SS Bug Deflector* High Quality Bug Deflector* 430 Stainless Steel* Mounts Behind Grille Bezel* Requires Drilling Holes In Hood To Install* Installation Hardware Included* Sold...
    03-12200001
    SKU:
    03-12200001
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Freightliner
    Finish Options:
    Polished
    Product Type:
    Exterior
    $311.99
    Qty in Cart: 0
    Price:
    $311.99
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  • Stainless Steel Bug Deflector For Freightliner Coronado 132

    Stainless Steel Bug Deflector For Freightliner Coronado 132

    UNITED PACIFIC

    $215.99
    Freightliner Coronado 430 SS Bug Deflector* High Quality Bug Deflector* 430 Stainless Steel* Drilling Required For Mounting* Mounting Holes Prepunched For Easy Installation* Clearance Notch For Hood...
    03-12200005
    SKU:
    03-12200005
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Freightliner
    Finish Options:
    Polished
    Product Type:
    Hood Parts & Acc.
    $215.99
    Qty in Cart: 0
    Price:
    $215.99
    Subtotal:
  • Stainless Steel Bug Deflector For Freightliner FLD112, FLD120

    Stainless Steel Bug Deflector For Freightliner FLD112, FLD120

    UNITED PACIFIC

    $203.99
    Freightliner 430 SS Bug Deflector* High Quality Bug Deflector* 430 Stainless Steel* Mounts Behind Grille Bezel* Requires Drilling Holes In Hood To Install* Installation Hardware Included* Sold...
    03-12200003
    SKU:
    03-12200003
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Freightliner
    Finish Options:
    Polished
    Product Type:
    Exterior
    $203.99
    Qty in Cart: 0
    Price:
    $203.99
    Subtotal:
  • Shield Style Sunglasses W/ Red To Green Full Frame

    Shield Style Sunglasses W/ Red To Green Full Frame

    AFTERMARKET

    $28.04
    Shatterproof Multi Color Lens Sunglasses* High Quality Sunglasses* Mirrored Lens* Red To Green Frame* Shield Style* Shatterproof * Sold Individually* Warranty On Sunglasses Against Defects In...
    09-2200012
    SKU:
    09-2200012
    Truck Class:
    Universal
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Apparel
    $28.04
    Qty in Cart: 0
    Price:
    $28.04
    Subtotal:
  • Acrylic Bug Shield With Logo For Peterbilt 589

    Acrylic Bug Shield With Logo For Peterbilt 589

    PHOENIX DESIGN

    $120.99
    Peterbilt 589 Acrylic Logo Bug Shield* High Quality Bug Shield * Acrylic* With Logo* Made In USA* Sold Individually* Warranty On Bug Shields Against Defects In Workmanship & Material From Date Of...
    01-12200041
    SKU:
    01-12200041
    Material Options:
    Acrylic
    Make:
    Peterbilt
    Truck Class:
    Heavy Duty
    Product Type:
    Hood Parts & Acc.
    $120.99
    Qty in Cart: 0
    Price:
    $120.99
    Subtotal:
  • Stainless Steel Bug Shield For Freightliner Classic 120, XL

    Stainless Steel Bug Shield For Freightliner Classic 120, XL

    VALLEY CHROME PLATING

    $160.99
    Freightliner Classic 120 & XL Stainless Steel Bug Shield* High Quality Bug Shield * Stainless Steel* Sold Individually* Warranty On Bug Shields Against Defects In Workmanship & Material From Date Of...
    03-12200009
    SKU:
    03-12200009
    Truck Class:
    Heavy Duty
    Product Type:
    Hood Parts & Acc.
    Make:
    Freightliner
    Ready To Ship:
    Yes
    $160.99
    Qty in Cart: 0
    Price:
    $160.99
    Subtotal:
  • Motor Assist For Hydraulic Brakes Replaces 2772876

    Motor Assist For Hydraulic Brakes Replaces 2772876

    OPP - ORIGINAL PARTS PROGRAM

    $184.99
    Motor Assist For Hydraulic Brakes* High Quality Motor Assist* For Hydraulic Brakes* Sold Individually* Warranty On Motor Assists Against Defects In Workmanship & Material From Date Of Purchase*|**...
    29-05220000
    SKU:
    29-05220000
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $184.99
    Qty in Cart: 0
    Price:
    $184.99
    Subtotal:
  • Stainless Front Fender Accent Short Trim With Slotted Light Hole For Peterbilt 379 1987- 2007

    Stainless Front Fender Accent Short Trim With Slotted Light Hole For Peterbilt 379 1987- 2007

    TRUX ACCESSORIES

    $197.99
    Stainless Front Fender Accent Short Trim With Slotted Light Hole* High Quality Accent Short Trim* (1) Slotted Light Hole * No Light Included* Sold As Pair* Warranty On Accent Short Trims Against...
    01-1220004
    SKU:
    01-1220004
    Product Type:
    Hood Parts & Acc.
    $197.99
    Qty in Cart: 0
    Price:
    $197.99
    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:
  • FREE SHIPPING OVER $249
    CSM 1:32 Scale Kenworth W900 Chrome Frameless Dump Truck W/ Red Cab Diecast Model

    CSM 1:32 Scale Kenworth W900 Chrome Frameless Dump Truck W/ Red Cab Diecast Model

    CHROME SHOP MAFIA

    $67.09
    Chrome Shop Mafia 1:32 Scale Kenworth W900 Chrome Frameless Dump Truck W/ Red Cab* High Quality Dump Truck Model Toy* Frameless* Diecast * 1:32 Scale* Color Red Cab* Sold Individually * Warranty On...
    09-220000009
    SKU:
    09-220000009
    Color:
    Red
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Apparel
    Ready To Ship:
    Yes
    $67.09
    Qty in Cart: 0
    Price:
    $67.09
    Subtotal:
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