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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

    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

    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 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

    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

    The Best Steering Wheel Spinner Knobs for 2026(Post)

    It's a small, affordable accessory that drivers love. Yup. We're talking about semi truck spinner knobs. They give you better wheel control, reduce wrist fatigue, and help you make smoother turns in t

    How to Choose the Right W990 Drop Visor(Post)

    The best Kenworth W990 drop visor depends on your design preference, mounting configuration, and windshield type or cab style (curved or flat). Buying a Custom W990 Truck Visor Online?  If you're brow

    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

    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. 

    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

    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

    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

    T880 Visor Ultimate Buyer's Guide(Post)

    There are countless Kenworth T880 visor options to choose from depending on the theme and style you’re going for. Here's a quick buyer's guide for Kenworth T880 aftermarket visors. Before you buy, con

    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

    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

    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

    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

    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

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  • FREE SHIPPING OVER $249
    Interior Fresh Air Filter For Peterbilt

    Interior Fresh Air Filter For Peterbilt

    CAB FRESH FILTER CO.

    $22.07
    Peterbilt Interior Fresh Air Filter AssemblyKeep the inside of your cab fresh with this aftermarket interior filter from CAB Fresh. This filter features internal antimicrobials that stops mold...
    01-1503026
    SKU:
    01-1503026
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Cloth
    Make:
    Peterbilt
    Product Type:
    Interior
    Ready To Ship:
    Yes
    $22.07
    Qty in Cart: 0
    Price:
    $22.07
    Subtotal:
  • 3 Layer Replacement Air Filter Wrap For 29-090500024 High Performance Air Filter For Kenworth & Peterbilt

    3 Layer Replacement Air Filter Wrap For 29-090500024 High Performance Air Filter For Kenworth & Peterbilt

    FLEET FILTERS

    $383.99
    3 Layer Replacement Air Filter Wrap For High Performance Air Filter* High Quality Replacement Air Filter Wrap* For 29-090500024* 3 Layer Design* Does Not Come Pre-Oiled* Oil Is Required Before...
    29-090500026
    SKU:
    29-090500026
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Exterior
    $383.99
    Qty in Cart: 0
    Price:
    $383.99
    Subtotal:
  • 3 Layer Replacement Air Filter Wrap For 29-071300024 High Performance Air Filter For Kenworth & Peterbilt

    3 Layer Replacement Air Filter Wrap For 29-071300024 High Performance Air Filter For Kenworth & Peterbilt

    FLEET FILTERS

    $195.99
    3 Layer Replacement Air Filter Wrap For High Performance Air Filter* High Quality Replacement Air Filter Wrap* For 29-071300024* 3 Layer Design* Does Not Come Pre-Oiled* Oil Is Required Before...
    29-071300026
    SKU:
    29-071300026
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    $195.99
    Qty in Cart: 0
    Price:
    $195.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Isspro Tube Style Fuel Sender Replaces 11-03997-026 For Peterbilt, Mack & Volvo W/ 26 Inch Fuel Tank

    Isspro Tube Style Fuel Sender Replaces 11-03997-026 For Peterbilt, Mack & Volvo W/ 26 Inch Fuel Tank

    ISSPRO

    $113.99
    26 Inch Tank Fuel Sender By IssproAt 4 State Trucks, we offer top of the line aftermarket Isspro fuel senders for 26-inch diameter tanks. This fuel sender fits multiple Mack, Peterbilt, and Volvo...
    29-060302
    SKU:
    29-060302
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Style Options:
    Tube
    Make:
    Peterbilt
    Make:
    Volvo
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    Shape Options:
    Cylindrical
    Make:
    Mack
    Diameter Options:
    26 Inch
    $113.99
    Qty in Cart: 0
    Price:
    $113.99
    Subtotal:
  • 1-Piece Stainless Steel Diesel Particulate Filter Replaces 1827310PEX For Cummins ISX Engine

    1-Piece Stainless Steel Diesel Particulate Filter Replaces 1827310PEX For Cummins ISX Engine

    GLOBAL EMISSIONS

    $2,102.99
    1-Piece Stainless Steel Diesel Particulate Filter Fits Cummins ISX Engine* High Quality Diesel Particulate Filter* Made Of Stainless Steel * Exclusive 1-Piece Canister Design For Durability* OEM...
    29-080600026
    SKU:
    29-080600026
    Truck Class:
    Heavy Duty
    Style Options:
    Cummins
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $2,102.99
    Qty in Cart: 0
    Price:
    $2,102.99
    Subtotal:
  • Steel Hydraulic Filter Bracket

    Steel Hydraulic Filter Bracket

    BUYERS PRODUCTS

    $16.95
    Hydraulic Filter BracketThe Steel Hydraulic Filter Bracket is your go-to solution for reliable filter mounting in hydraulic systems. Designed for HFA1, HFA2, and HFA3 series assemblies, this carbon...
    09-02500267
    SKU:
    09-02500267
    Material Options:
    Steel
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $16.95
    Qty in Cart: 0
    Price:
    $16.95
    Subtotal:
  • 26 GPM 1 Inch In- Tank Filter W/ 25 Micron & 25 PSI Bypass

    26 GPM 1 Inch In- Tank Filter W/ 25 Micron & 25 PSI Bypass

    BUYERS PRODUCTS

    $138.99
    26 GPM 1 Inch In- Tank FilterRely on the 26 GPM 1 Inch In-Tank Filter to keep your fuel system clean and operating efficiently. With 25-micron filtration, 25 PSI bypass, and a 26 GPM flow rate, it...
    09-02500264
    SKU:
    09-02500264
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $138.99
    Qty in Cart: 0
    Price:
    $138.99
    Subtotal:
  • 50 GPM 1.25 Inch Return Line Filter W/ 10 Micron & 25 PSI Bypass

    50 GPM 1.25 Inch Return Line Filter W/ 10 Micron & 25 PSI Bypass

    BUYERS PRODUCTS

    $60.99
    50 GPM 1.25 Inch Return Line FilterDeliver superior hydraulic protection with the 50 GPM 1.25 Inch Return Line Filter, a durable, high-performance solution for high-demand systems. With a 10-micron...
    09-02500266
    SKU:
    09-02500266
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $60.99
    Qty in Cart: 0
    Price:
    $60.99
    Subtotal:
  • FREE SHIPPING OVER $249
    4 PSI R12 Air Valve Relay Replaces 102626, 86824R93, 745102626 & A86473

    4 PSI R12 Air Valve Relay Replaces 102626, 86824R93, 745102626 & A86473

    AUTOMANN USA

    $45.90
    Air Valve R12 RelayAchieve consistent braking and suspension control with the 4 PSI R12 Air Valve Relay. This high-quality relay features 4 PSI crack pressure and precise airflow distribution...
    102626
    SKU:
    102626
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Air, Electrical, & Safety
    $45.90
    Qty in Cart: 0
    Price:
    $45.90
    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:
  • BESTfit 11 Inch Muffler Clamp

    BESTfit 11 Inch Muffler Clamp

    BESTFIT TRUCK PARTS

    $54.99
    Universal Powder Coated Clamp For 11 Inch Mufflers* High Quality Muffler* 11 Inch* Made In USA* Sold Individually* Warranty On Mufflers Against Defects In Workmanship & Material From Date Of...
    09-0805026
    SKU:
    09-0805026
    Product Type:
    Exhaust
    Diameter Options:
    11 Inch
    Make:
    Universal Items
    $54.99
    Qty in Cart: 0
    Price:
    $54.99
    Subtotal:
  • Driver/Passenger Side 10 X 2.25 Inch Electric Brake Assembly 023-026-00/023-027-00

    Driver/Passenger Side 10 X 2.25 Inch Electric Brake Assembly 023-026-00/023-027-00

    AFTERMARKET

    $69.99 - $79.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trailers10 X 2.25 Inch Electric Brake Assembly Driver Side 023-026-00Electric Trailer Brake Assembly - 3,500...
    PPR_299935
    SKU:
    PPR_299935
    Truck Class:
    Heavy Duty
    Product Type:
    Trailer
    Make:
    Trailer
    Position:
    Driver Side
    Position:
    Passenger Side
    Rating:
    3500 LBS
    Make:
    Universal Items
    $69.99 - $79.99
    Qty in Cart: 0
    Price:
    $69.99 - $79.99
    Subtotal:
  • 11 Inch Stainless Steel Blind Mount Drop Visor For Peterbilt 300 Series

    11 Inch Stainless Steel Blind Mount Drop Visor For Peterbilt 300 Series

    PHOENIX DESIGN

    $439.99
    11 Inch Stainless Steel Blind Mount Drop Visor Fits Peterbilt 300 SeriesGive your Peterbilt flat or raised roof truck a rugged yet refined upgrade with the 11 Inch Stainless Steel Blind Mount Drop...
    01-090000026
    SKU:
    01-090000026
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Light Options:
    Without Lights
    Type Options:
    Blind Mount
    Product Type:
    Exterior
    Style Options:
    Drop
    $439.99
    Qty in Cart: 0
    Price:
    $439.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    TPHD 11 X 7.87 X 2.375 Inch AC Evaporator For International

    TPHD 11 X 7.87 X 2.375 Inch AC Evaporator For International

    TPHD

    Now: $39.81
    Was: $100.99
    AC Evaporator 11 Inch x 7 Inch x 2.375 Inch For International ProStar/LoneStar/4100-4300-4400/5000-7000-8000* High Quality AC Evaporator In Aluminum* 8 Inch Width* 2.5 Inch Depth* 11 Inch Height* 0...
    07-070026
    SKU:
    07-070026
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    International
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    Now: $39.81
    Was: $100.99
    Qty in Cart: 0
    Price:
    Now: $39.81
    Was: $100.99
    Subtotal:
  • VC 14 Inch Chrome Break Back Bumper W/ Open Ends & 2 Tow Pin Holes For Kenworth T800 & T880

    VC 14 Inch Chrome Break Back Bumper W/ Open Ends & 2 Tow Pin Holes For Kenworth T800 & T880

    VALLEY CHROME PLATING

    $947.99
    14 Inch Chrome Break Back Bumper W/ Open Ends & 2 Tow Pin Holes By Valley Chrome Fits Kenworth T800 & T880* High Quality Replacement Bumper* Made Of 11-Gauge Stainless Steel* Open End Break Back...
    FN010026S
    SKU:
    FN010026S
    Product Type:
    Bumpers
    Finish Options:
    Chrome-Plated
    Location:
    Made In USA
    Style Options:
    Single Break Back
    Height Options:
    14 Inch
    Size Options:
    10 Gauge
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Material Options:
    Stainless Steel
    $947.99
    Qty in Cart: 0
    Price:
    $947.99
    Subtotal:
  • FREE SHIPPING
    32 Inch Engine Fan Blade, 11 Blade - Replaces 4735-44003-12

    32 Inch Engine Fan Blade, 11 Blade - Replaces 4735-44003-12

    OPP - ORIGINAL PARTS PROGRAM

    $315.99
    Engine Cooling 32 Inch Fan Blade With 2.56 Inch Pilot HoleThis Engine Fan Blade with 11 blades is a reliable choice for your engine cooling needs and replaces the factory part. It measures 32 inches...
    29-070267
    SKU:
    29-070267
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $315.99
    Qty in Cart: 0
    Price:
    $315.99
    Subtotal:
  • Service Repair Kit W/ Pivot Bushing, Cap Screw, Washer, 1-1/8 Inch Lock Nut For Neway

    Service Repair Kit W/ Pivot Bushing, Cap Screw, Washer, 1-1/8 Inch Lock Nut For Neway

    AFTERMARKET

    $281.99
    Service Repair Kit Replaces E9300A. 2501619C91. 48100260* High Quality Service Repair Kit* Consists Of  - (2) Pivot Bushing  - (2) 1-1/8 Inch X 9-1/2 Inch Cap Screw - (4) Washer - 1-1/8in ID x 4.0in...
    29-05100026
    SKU:
    29-05100026
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Other - Semi-Truck
    Product Type:
    Frame & Chassis
    $281.99
    Qty in Cart: 0
    Price:
    $281.99
    Subtotal:
  • Merritt Dyna-Light Aluminum Cab Rack W/ Beacon Light Brackets 68 X 76 Inch

    Merritt Dyna-Light Aluminum Cab Rack W/ Beacon Light Brackets 68 X 76 Inch

    MERRITT

    $6,315.99
    Cab Rack W/ Radius Corners, 2 Grab Handles, 18 Inch Door Enclosures & Air Line Bracket Between The Frame* High Quality Cab Rack* Includes:  - (2) Beacon Light Brackets  - (2) 18 Inch Door Enclosures...
    318381M0266
    SKU:
    318381M0266
    Material Options:
    Aluminum
    Product Type:
    Cargo Control
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $6,315.99
    Qty in Cart: 0
    Price:
    $6,315.99
    Subtotal:
  • 1-Piece Stainless Steel Diesel Particulate Filter Replaces 3103617, 3976606, 3978026 For Cummins ISC Engine

    1-Piece Stainless Steel Diesel Particulate Filter Replaces 3103617, 3976606, 3978026 For Cummins ISC Engine

    BESTFIT TRUCK PARTS

    $2,135.99
    1-Piece Stainless Steel Diesel Particulate Filter Fits Cummins ISC Engine* High Quality Diesel Particulate Filter* Made Of Stainless Steel * Exclusive 1-Piece Canister Design For Durability* OEM...
    29-080600039
    SKU:
    29-080600039
    Truck Class:
    Heavy Duty
    Style Options:
    Cummins
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $2,135.99
    Qty in Cart: 0
    Price:
    $2,135.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Pre-Filter For Air Cleaner For Kenworth & Peterbilt

    Pre-Filter For Air Cleaner For Kenworth & Peterbilt

    CAB FRESH FILTER CO.

    $33.71
    Pre-Filter For Air Cleaner Fits Kenworth & PeterbiltWe offer aftermarket CAB Fresh pre-filters for air cleaners that fits Kenworth T680, T880, Peterbilt 567 and 579 big rigs. It features activated...
    29-0905708
    SKU:
    29-0905708
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Cloth
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    $33.71
    Qty in Cart: 0
    Price:
    $33.71
    Subtotal:
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