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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

    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

    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

    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
    Caterpillar 256-8753 Fuel Water Separator

    Caterpillar 256-8753 Fuel Water Separator

    OPP - ORIGINAL PARTS PROGRAM

    $47.63
    Caterpillar 256-8753 Fuel Water Separator* Sold Individually* Warranty On Separator Filter Against Defects In Workmanship & Material From Date Of Purchase*** This Is An OEM Replacement Part/ Not...
    2568753
    SKU:
    2568753
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $47.63
    Qty in Cart: 0
    Price:
    $47.63
    Subtotal:
  • Fleetguard AF25667FLG Air Filter For Donaldson Internal Air Cleaner

    Fleetguard AF25667FLG Air Filter For Donaldson Internal Air Cleaner

    OPP - ORIGINAL PARTS PROGRAM

    $94.99
    Breather Filter Fits Freightliner FL50-FL80, IHC 8600, Kenworth T370, T680, T800, Peterbilt 365, 386, 389, 579* High Quality Air Filter* For Donaldson Internal Air Cleaners* Warranty On Air Filters...
    AF25667FLG
    SKU:
    AF25667FLG
    Truck Class:
    Heavy Duty
    Make:
    Freightliner
    Make:
    International
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Interior
    Ready To Ship:
    Yes
    $94.99
    Qty in Cart: 0
    Price:
    $94.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit 68 Degree Turbo Pipe W/ 4.86 Inch ID & 5.85 Inch OD Flange For Peterbilt 377, 378 & 379 Replaces 14-14256

    BESTfit 68 Degree Turbo Pipe W/ 4.86 Inch ID & 5.85 Inch OD Flange For Peterbilt 377, 378 & 379 Replaces 14-14256

    BESTFIT TRUCK PARTS

    $92.99
    68 Degree Turbo Pipe W/ 4.86 Inch ID & 5.85 Inch OD Flange By BESTfit Replaces 14-14256 Fits Peterbilt 377, 378 & 379Upgrade your Peterbilt with our premium 68 Degree Turbo Pipe, designed to...
    01-08142560
    SKU:
    01-08142560
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Diameter Options:
    6 Inch
    Style Options:
    Elbow
    Material Options:
    Aluminized Steel
    Degree Options:
    68
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $92.99
    Qty in Cart: 0
    Price:
    $92.99
    Subtotal:
  • Cummins N14 Engine 3 Piece Exhaust Manifold Kit - Replaces 3062568, 3065022 & 3065024 By BESTfit

    Cummins N14 Engine 3 Piece Exhaust Manifold Kit - Replaces 3062568, 3065022 & 3065024 By BESTfit

    BESTFIT TRUCK PARTS

    $467.99
    BESTfit 3 Piece Exhaust Manifold Kit For Cummins N14 1995 & OlderIntroducing BESTfit CHROME EXHAUST KITS! These Kits Are Installer-Friendly, Produced With All High Quality Components, Offer The Best...
    29-073062568
    SKU:
    29-073062568
    Truck Class:
    Heavy Duty
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $467.99
    Qty in Cart: 0
    Price:
    $467.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Stainless Steel Control Plate A/C Heater For Peterbilt

    Stainless Steel Control Plate A/C Heater For Peterbilt

    ROCKWOOD

    $26.25
    SS AC/Heat Control Trim Panel Fits PeterbiltLabel your Peterbilt A/C and heat controls with this high quality ID plate. It is made of stainless steel and engraved with an easy to read font. The plate...
    PT256ACH
    SKU:
    PT256ACH
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Interior
    Ready To Ship:
    Yes
    $26.25
    Qty in Cart: 0
    Price:
    $26.25
    Subtotal:
  • Jones Performance Fiberglass Hood W/ 59 Inch Centerline & Fenders, Replaces K146-1231 For Kenworth T600 Aerocab

    Jones Performance Fiberglass Hood W/ 59 Inch Centerline & Fenders, Replaces K146-1231 For Kenworth T600 Aerocab

    JONES PERFORMANCE

    $2,891.99
    Fiberglass Hood W/ 59 Inch Centerline & Fenders By Jones Performance Replaces K146-1231 Fits Kenworth T600 AerocabReplace An OEM K146-1231 Factory Style Hood With This Top Quality Jones Performance...
    02-12560
    SKU:
    02-12560
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Length Options:
    59 Inch
    Material Options:
    Fiberglass
    Make:
    Kenworth
    Finish Options:
    Paintable
    Product Type:
    Hood Shell
    Ready To Ship:
    Yes
    $2,891.99
    Qty in Cart: 0
    Price:
    $2,891.99
    Subtotal:
  • BESTfit Fiberglass Hood W/ 56.75 Inch Centerline & Fenders For International 5900 & 9900I Replaces 3552477C96

    BESTfit Fiberglass Hood W/ 56.75 Inch Centerline & Fenders For International 5900 & 9900I Replaces 3552477C96

    BESTFIT TRUCK PARTS

    $2,582.99
    Fiberglass Hood W/ 56.75 Inch Centerline & Fenders By BESTfit Replaces 3552477C96 Fits International 5900 & 9900IThe BESTfit Fiberglass Hood is a high-quality replacement for International 5900 &...
    07-12567
    SKU:
    07-12567
    Truck Class:
    Heavy Duty
    Style Options:
    Set Forward Axle
    Material Options:
    Fiberglass
    Finish Options:
    Paintable
    Make:
    International
    Length Options:
    120 BBC
    Product Type:
    Hood Shell
    Ready To Ship:
    Yes
    $2,582.99
    Qty in Cart: 0
    Price:
    $2,582.99
    Subtotal:
  • BESTfit Fiberglass Hood W/ 56.75 Inch Centerline & Fenders For International 5900 & 9900I Replaces 3531924C91, 3552478C96

    BESTfit Fiberglass Hood W/ 56.75 Inch Centerline & Fenders For International 5900 & 9900I Replaces 3531924C91, 3552478C96

    BESTFIT TRUCK PARTS

    $2,514.99
    Fiberglass Hood W/ 56.75 Inch Centerline & Fenders By BESTfit Replaces 3531924C91, 3552478C96 Fits International 5900 & 9900IAre you looking for the most cost effective hood for your International...
    07-12568
    SKU:
    07-12568
    Truck Class:
    Heavy Duty
    Style Options:
    Set Forward Axle
    Material Options:
    Fiberglass
    Finish Options:
    Paintable
    Make:
    International
    Length Options:
    120 BBC
    Product Type:
    Hood Shell
    Ready To Ship:
    Yes
    $2,514.99
    Qty in Cart: 0
    Price:
    $2,514.99
    Subtotal:
  • Jones Performance Fiberglass Hood W/ 58.5 Inch Centerline & Fenders For International 5900I / 9900I SFA 120 BBC Replaces 3524263C91, 3531917C91, 3552477C96

    Jones Performance Fiberglass Hood W/ 58.5 Inch Centerline & Fenders For International 5900I / 9900I SFA 120 BBC Replaces 3524263C91, 3531917C91, 3552477C96

    JONES PERFORMANCE

    $2,949.99
    Fiberglass Hood W/ 58.5 Inch Centerline & Fenders By Jones Performance Replaces 3524263C91, 3531917C91, 3552477C96 Fits International 5900I / 9900I SFA 120 BBCIs it time to replace your hood for a...
    07-12563
    SKU:
    07-12563
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Fiberglass
    Finish Options:
    Paintable
    Make:
    International
    Length Options:
    120 BBC
    Product Type:
    Hood Shell
    $2,949.99
    Qty in Cart: 0
    Price:
    $2,949.99
    Subtotal:
  • Jones Performance Fiberglass W/ 58.5 Inch Centerline & Fenders For International 5900I/9900I Replaces OE 3531924C91, 3557798C91, 3557798C92

    Jones Performance Fiberglass W/ 58.5 Inch Centerline & Fenders For International 5900I/9900I Replaces OE 3531924C91, 3557798C91, 3557798C92

    JONES PERFORMANCE

    $2,979.99
    Fiberglass W/ 58.5 Inch Centerline & Fenders By Jones Performance Replaces OE 3531924C91, 3557798C91, 3557798C92 Fits International 5900I/9900IJones Performance is a reputable manufacturer that...
    07-12564
    SKU:
    07-12564
    Truck Class:
    Heavy Duty
    Material Options:
    Fiberglass
    Finish Options:
    Paintable
    Make:
    International
    Length Options:
    120 BBC
    Product Type:
    Hood Shell
    Ready To Ship:
    Yes
    $2,979.99
    Qty in Cart: 0
    Price:
    $2,979.99
    Subtotal:
  • Intake Pre-Filter For LAF3551 Air Filter

    Intake Pre-Filter For LAF3551 Air Filter

    FREEDOM AIR FILTERS

    $76.99
    Intake Pre-Filter For P153551 Air Filter* High Quality Polyester Mesh Pre-Filter* This Is A Pre-Filter Wrap That Covers The Air Filter Element. Air Filter Element Not Included. Sold Separately.* Fits...
    09-0723000
    SKU:
    09-0723000
    Truck Class:
    Heavy Duty
    Make:
    Freightliner
    Make:
    Western Star
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    $76.99
    Qty in Cart: 0
    Price:
    $76.99
    Subtotal:
  • FREE SHIPPING OVER $249
    32 Inch Fan Blade, 2.56 Inch Pilot Hole Replaces 3520182C1, 3625639C1, 05-19754-256

    32 Inch Fan Blade, 2.56 Inch Pilot Hole Replaces 3520182C1, 3625639C1, 05-19754-256

    AUTOMANN USA

    $164.99
    6 Bolt Mounting Clockwise Rotation Fan BladeThis professional-grade 9-blade fan assembly delivers powerful airflow with precision engineering. Crafted for clockwise rotation and industrial...
    29-0706005
    SKU:
    29-0706005
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    $164.99
    Qty in Cart: 0
    Price:
    $164.99
    Subtotal:
  • 4 Inch Stainless Extended Cab Panels W/ 16 Amber/Clear 3/4 Inch Round LED Lights For Peterbilt 389 131 BBC

    4 Inch Stainless Extended Cab Panels W/ 16 Amber/Clear 3/4 Inch Round LED Lights For Peterbilt 389 131 BBC

    PHOENIX DESIGN

    $406.99
    4 Inch Driver, 1.31 Inch Passenger X 54 Inch Stainless Steel Extended Cab Panels Fits Peterbilt 389 131 BBCMake your Peterbilt 389 131 BBC shine with the 4 Inch Stainless Extended Cab Panels,...
    01-091200256
    SKU:
    01-091200256
    Light Options:
    With Lights
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Finish Options:
    Paintable
    Length Options:
    54 Inch
    Product Type:
    Exterior
    $406.99
    Qty in Cart: 0
    Price:
    $406.99
    Subtotal:
  • 3 Inch Stainless Steel Standard Cab Panels W/ 6 P1 Amber/Amber LEDs For Peterbilt 388, 389

    3 Inch Stainless Steel Standard Cab Panels W/ 6 P1 Amber/Amber LEDs For Peterbilt 388, 389

    PHOENIX DESIGN

    $224.99
    3 Inch Stainless Steel Standard Cab Panels W/ 6 P1 Amber LED Amber Lens Lights Fit Peterbilt 388 & 389* High Quality Cab Panel* Made Of 304 Stainless Steel* 3 Inch* Extended* 3 P1 Lights Per Side *...
    01-091201256
    SKU:
    01-091201256
    Light Options:
    With Lights
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Finish Options:
    Polished
    Length Options:
    39 Inch
    Product Type:
    Exterior
    $224.99
    Qty in Cart: 0
    Price:
    $224.99
    Subtotal:
  • Jones Performance Fiberglass Hood W/ 66 Inch Centerline & Fenders For Kenworth W900L Replaces L29-1003-010002, L29-1017-01000

    Jones Performance Fiberglass Hood W/ 66 Inch Centerline & Fenders For Kenworth W900L Replaces L29-1003-010002, L29-1017-01000

    JONES PERFORMANCE

    $3,989.99
    Fiberglass Hood W/ 66 Inch Centerline & Fenders By Jones Performance Replaces L29-1003-010002, L29-1017-01000 FitsAt 4 State Trucks We Offer Jones Performance Fiberglass Hood For Kenworth W900L...
    02-12565
    SKU:
    02-12565
    Length Options:
    66 Inch
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Fiberglass
    Make:
    Kenworth
    Finish Options:
    Paintable
    Product Type:
    Hood Shell
    $3,989.99
    Qty in Cart: 0
    Price:
    $3,989.99
    Subtotal:
  • Jones Performance Fiberglass Hood W/ 52 Inch Centerline & Fenders For Mack CHN 613 SFA Models Replaces 25134067, 1QM-5927M

    Jones Performance Fiberglass Hood W/ 52 Inch Centerline & Fenders For Mack CHN 613 SFA Models Replaces 25134067, 1QM-5927M

    JONES PERFORMANCE

    $2,749.99
    Fiberglass Hood W/ 52 Inch Centerline & Fenders By Jones Performance Replaces 25134067, 1QM-5927M Fits Mack CHN 613 SFA ModelsEquip your Mack CHN 613 SFA with this premium Jones Performance...
    11-12560
    SKU:
    11-12560
    Truck Class:
    Heavy Duty
    Material Options:
    Fiberglass
    Make:
    Mack
    Finish Options:
    Paintable
    Length Options:
    52 Inch
    Product Type:
    Hood Shell
    $2,749.99
    Qty in Cart: 0
    Price:
    $2,749.99
    Subtotal:
  • Go Rhino Textured Black RB10 Running Boards W/ Mounting Bracket & 2 Pairs Of Drop Steps For Toyota 4Runner SR5 Sport

    Go Rhino Textured Black RB10 Running Boards W/ Mounting Bracket & 2 Pairs Of Drop Steps For Toyota 4Runner SR5 Sport

    GO RHINO

    $1,254.99
    Textured Black Off-Road Style 6 Inch Wide Steel Steps* High Quality Running Boards* 2 Pairs Of Drop Steps* Made Of Galvanized Steel* Includes Mounting Brackets For A Simple- No Drill Installation*...
    6344256820PC
    SKU:
    6344256820PC
    Color:
    Black
    Truck Class:
    Light Duty
    Material Options:
    Steel
    Make:
    Toyota
    Finish Options:
    Galvanized
    Product Type:
    Frame & Chassis
    $1,254.99
    Qty in Cart: 0
    Price:
    $1,254.99
    Subtotal:
  • Go Rhino Black RB10 Running Boards W/ Mounting Bracket & 2 Pairs Of Drop Steps For Toyota 4Runner SR5 Sport

    Go Rhino Black RB10 Running Boards W/ Mounting Bracket & 2 Pairs Of Drop Steps For Toyota 4Runner SR5 Sport

    GO RHINO

    $1,551.99
    Off-Road Style 6 Inch Wide Steel Steps W/ Black Bedliner Coating* High Quality Running Boards* 2 Pairs Of Drop Steps* Made Of Galvanized Steel* Includes Mounting Brackets For A Simple- No Drill...
    6344256820T
    SKU:
    6344256820T
    Color:
    Black
    Truck Class:
    Light Duty
    Material Options:
    Steel
    Make:
    Toyota
    Finish Options:
    Galvanized
    Product Type:
    Frame & Chassis
    $1,551.99
    Qty in Cart: 0
    Price:
    $1,551.99
    Subtotal:
  • TPHD Fiberglass Hood Shell W/ 55.75 Centerline For Peterbilt 377 SBA Replace 13-04230UNF, 13-04231, 13-04564A101

    TPHD Fiberglass Hood Shell W/ 55.75 Centerline For Peterbilt 377 SBA Replace 13-04230UNF, 13-04231, 13-04564A101

    TPHD

    $2,275.99
    Fiberglass Hood Shell W/ 55.75 Centerline By TPHD Replace 13-04230UNF, 13-04231, 13-04564A101 Fits Peterbilt 377 SBA* High Quality Hood Shell * 55.75 Inch Center Line* Paintable * Set Back Axle *...
    01-12561
    SKU:
    01-12561
    Material Options:
    Fiberglass
    Finish Options:
    Paintable
    Length Options:
    120 BBC
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Product Type:
    Hood Shell
    $2,275.99
    Qty in Cart: 0
    Price:
    $2,275.99
    Subtotal:
  • Rosewood Fan Control Dashboard Knob W/ Green Iron Cross

    Rosewood Fan Control Dashboard Knob W/ Green Iron Cross

    GRAND GENERAL

    $30.91
    Rosewood Fan Control Dashboard Knob W/ Green Iron Cross* High Quality Dashboard Knob* Rosewood* With Green Iron Cross * Stainless Steel Fan Script* Sold Individually* Warranty On Dashboard Knobs...
    09-15010256
    SKU:
    09-15010256
    Material Options:
    Stainless Steel
    Color:
    Green
    Truck Class:
    Heavy Duty
    Product Type:
    Interior
    Make:
    Universal Items
    $30.91
    Qty in Cart: 0
    Price:
    $30.91
    Subtotal:
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