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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

    Top 10 Semi Truck Winter Accessories for Heavy-Duty Drivers(Post)

    Winter truck driving can be downright trecherous to haul payloads in, especially when you don't have the right winter-ready trucker gear to get you through difficult drives in below-freezing temperatu

    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

    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

    Adapt to the Diesel Fuel Crisis Using These 10 Truck Mods(Post)

    Small aftermarket semi truck accessories and performance upgrades save more money over time than their upfront price suggests. Here are 10 aftermarket truck upgrades to create cost-per-mile savings. T

    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

    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

    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 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

    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

    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

    Semi-Truck Mattress Sizes: Fitment Chart & Buying Guide(Post)

    Looking for the right sized semi truck mattress? Every long-haul trucker should prioritize spending a sizeable portion of their budget on a quality mattress and driver's seat. That's where you spend

    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

    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

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  • 1-Piece Stainless Steel Diesel Particulate Filter Replaces 2888249NX, 4969542NX, 4965317NX For Cummins ISX Engine

    1-Piece Stainless Steel Diesel Particulate Filter Replaces 2888249NX, 4969542NX, 4965317NX For Cummins ISX Engine

    GLOBAL EMISSIONS

    $2,264.99
    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...
    29-080600054
    SKU:
    29-080600054
    Truck Class:
    Heavy Duty
    Style Options:
    Cummins
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $2,264.99
    Qty in Cart: 0
    Price:
    $2,264.99
    Subtotal:
  • Stainless Steel Diesel Particulate Filter Replaces 2594165C91 For International W/ MaxxForce 7/DT Engine

    Stainless Steel Diesel Particulate Filter Replaces 2594165C91 For International W/ MaxxForce 7/DT Engine

    GLOBAL EMISSIONS

    $1,905.99
    Stainless Steel Diesel Particulate Filter Fits International W/ MaxxForce 7/DT Engines - Replaces 2594165C91* High Quality Diesel Particulate Filter* Made Of Stainless Steel * OEM Quality Clamps And...
    07-080600005
    SKU:
    07-080600005
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    International
    Product Type:
    Exhaust
    $1,905.99
    Qty in Cart: 0
    Price:
    $1,905.99
    Subtotal:
  • 1-Piece Stainless Steel Diesel Particulate Filter Replaces 4965284NX, 5287496NX For Cummins ISC/ISL Engines

    1-Piece Stainless Steel Diesel Particulate Filter Replaces 4965284NX, 5287496NX For Cummins ISC/ISL Engines

    GLOBAL EMISSIONS

    $2,105.99
    1-Piece Stainless Steel Diesel Particulate Filter Fits Cummins ISC & ISL Engines* High Quality Diesel Particulate Filter* Made Of Stainless Steel * Exclusive 1-Piece Canister Design For Durability*...
    29-080600052
    SKU:
    29-080600052
    Truck Class:
    Heavy Duty
    Style Options:
    Cummins
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $2,105.99
    Qty in Cart: 0
    Price:
    $2,105.99
    Subtotal:
  • AC Machine Spin-On Recycling Filter Dryer For Robinair

    AC Machine Spin-On Recycling Filter Dryer For Robinair

    AFTERMARKET

    $137.99
    Replacement Air Conditioner Recovery and Recycling Machine Filter DrierThe A/C Recycling Spin On Filter Dryer is the perfect solution for keeping your air conditioning system running smoothly. This...
    09-07000005
    SKU:
    09-07000005
    Truck Class:
    Heavy Duty
    Length Options:
    12 Inch
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $137.99
    Qty in Cart: 0
    Price:
    $137.99
    Subtotal:
  • 1-Piece Stainless Steel Diesel Particulate Filter Replaces 5287480NX, 4965285NX For Cummins ISB Engine

    1-Piece Stainless Steel Diesel Particulate Filter Replaces 5287480NX, 4965285NX For Cummins ISB Engine

    GLOBAL EMISSIONS

    $1,759.99
    1-Piece Stainless Steel Diesel Particulate Filter Fits Cummins ISB Engine* High Quality Diesel Particulate Filter* Made Of Stainless Steel * Exclusive 1-Piece Canister Design For Durability* OEM...
    29-080600058
    SKU:
    29-080600058
    Truck Class:
    Heavy Duty
    Style Options:
    Cummins
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $1,759.99
    Qty in Cart: 0
    Price:
    $1,759.99
    Subtotal:
  • 1-Piece Stainless Steel Diesel Particulate Filter Replaces 2888248, 4965225NX For Cummins ISX Engine

    1-Piece Stainless Steel Diesel Particulate Filter Replaces 2888248, 4965225NX For Cummins ISX Engine

    GLOBAL EMISSIONS

    $2,362.99
    1-Piece Stainless Steel Diesel Particulate Filter Fits Cummins ISX Engine* High Quality Diesel Particulate Filter* Made Of Stainless Steel * OEM Quality Clamps And Gaskets Included* Sold Individually...
    29-080600056
    SKU:
    29-080600056
    Truck Class:
    Heavy Duty
    Style Options:
    Cummins
    Material Options:
    Stainless Steel
    Product Type:
    Exhaust
    Make:
    Universal Items
    $2,362.99
    Qty in Cart: 0
    Price:
    $2,362.99
    Subtotal:
  • 1-Piece Stainless Steel Diesel Particulate Filter Replaces 21716414, 21716416 For Volvo/Mack MP7, MP8 Engines

    1-Piece Stainless Steel Diesel Particulate Filter Replaces 21716414, 21716416 For Volvo/Mack MP7, MP8 Engines

    GLOBAL EMISSIONS

    $2,324.99
    1-Piece Stainless Steel Diesel Particulate Filter Fits Volvo/Mack MP7 & MP8 Engines* High Quality Diesel Particulate Filter* Made Of Stainless Steel * Exclusive 1-Piece Canister Design For...
    29-080600050
    SKU:
    29-080600050
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Mack
    Make:
    Volvo
    Product Type:
    Exhaust
    $2,324.99
    Qty in Cart: 0
    Price:
    $2,324.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Lower Extender Filler Panel For Freightliner Cascadia Replaces 22-69771-004 & 22-69771-005

    Lower Extender Filler Panel For Freightliner Cascadia Replaces 22-69771-004 & 22-69771-005

    OPP - ORIGINAL PARTS PROGRAM

    $41.61 - $48.89
    Protect and complete your Cascadia's exterior with the Lower Extender Filler Panel, engineered to replace 22-69771-004 and 22-69771-005 for a secure, precise fit. Available in driver and passenger...
    PPR_200574
    SKU:
    PPR_200574
    Truck Class:
    Heavy Duty
    Make:
    Freightliner
    Material Options:
    Plastic/Poly
    Product Type:
    Exterior
    $41.61 - $48.89
    Qty in Cart: 0
    Price:
    $41.61 - $48.89
    Subtotal:
  • 1-Piece Stainless Steel Diesel Particulate Filter Replaces 4965223NX, 5287521 For Cummins ISM Engine

    1-Piece Stainless Steel Diesel Particulate Filter Replaces 4965223NX, 5287521 For Cummins ISM Engine

    GLOBAL EMISSIONS

    $1,972.99
    1-Piece Stainless Steel Diesel Particulate Filter Fits Cummins ISM Engine* High Quality Diesel Particulate Filter* Made Of Stainless Steel * Exclusive 1-Piece Canister Design For Durability* OEM...
    29-080600055
    SKU:
    29-080600055
    Truck Class:
    Heavy Duty
    Style Options:
    Cummins
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $1,972.99
    Qty in Cart: 0
    Price:
    $1,972.99
    Subtotal:
  • 1-Piece Stainless Steel Diesel Particulate Filter Replaces 4965304NX, 2888247NX For Cummins ISX Engine

    1-Piece Stainless Steel Diesel Particulate Filter Replaces 4965304NX, 2888247NX For Cummins ISX Engine

    GLOBAL EMISSIONS

    $2,398.99
    1-Piece Stainless Steel Diesel Particulate Filter Fits Cummins ISX Engine* High Quality Diesel Particulate Filter* Made Of 304 Stainless Steel * Exclusive 1-Piece Canister Design For Durability* OEM...
    29-080600057
    SKU:
    29-080600057
    Truck Class:
    Heavy Duty
    Style Options:
    Cummins
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $2,398.99
    Qty in Cart: 0
    Price:
    $2,398.99
    Subtotal:
  • 1-Piece Stainless Steel Diesel Particulate Filter Replaces 5579356, 5295605 For Cummins ISX Engine

    1-Piece Stainless Steel Diesel Particulate Filter Replaces 5579356, 5295605 For Cummins ISX Engine

    GLOBAL EMISSIONS

    $1,971.99
    1-Piece Stainless Steel Diesel Particulate Filter Fits Cummins ISX Engine* High Quality Diesel Particulate Filter* Made Of Stainless Steel * OEM Quality Clamps And Gaskets Included* Sold Individually...
    29-080600051
    SKU:
    29-080600051
    Truck Class:
    Heavy Duty
    Style Options:
    Cummins
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $1,971.99
    Qty in Cart: 0
    Price:
    $1,971.99
    Subtotal:
  • 1-Piece Stainless Steel Diesel Particulate Filter Replaces 4965243NX, 5287191NX, A035G674 For Cummins ISM Engine

    1-Piece Stainless Steel Diesel Particulate Filter Replaces 4965243NX, 5287191NX, A035G674 For Cummins ISM Engine

    GLOBAL EMISSIONS

    $2,175.99
    1-Piece Stainless Steel Diesel Particulate Filter Fits Cummins ISM Engine* High Quality Diesel Particulate Filter* Made Of Stainless Steel * Exclusive 1-Piece Canister Design For Durability* OEM...
    29-080600053
    SKU:
    29-080600053
    Truck Class:
    Heavy Duty
    Style Options:
    Cummins
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $2,175.99
    Qty in Cart: 0
    Price:
    $2,175.99
    Subtotal:
  • High Flow Performance Air Filter With Washable Element Media For PACCAR, GM, Freightliner, Mack - Pair

    High Flow Performance Air Filter With Washable Element Media For PACCAR, GM, Freightliner, Mack - Pair

    FLEET FILTERS

    $839.99
    High Performance Air Filter Media Fits PACCAR, GM, Freightliner, Mack - PairYou never need to waste money on paper filters again! 4 State Trucks proudly offers Fleet Air Filters, the only lifetime,...
    29-090500005
    SKU:
    29-090500005
    Truck Class:
    Heavy Duty
    Make:
    GMC
    Make:
    Freightliner
    Make:
    Peterbilt
    Make:
    Kenworth
    Make:
    Bus
    Make:
    Mack
    Product Type:
    Exterior
    $839.99
    Qty in Cart: 0
    Price:
    $839.99
    Subtotal:
  • Cabin Air Filter, 5 X 10 Inch For Freightliner Century

    Cabin Air Filter, 5 X 10 Inch For Freightliner Century

    AUTOMANN USA

    $8.09
    Freightliner Cabin Air FilterEnsure the air in your vehicle is fresh and pollutant-free with the cabin air filter. Designed to keep out pollen, dust, odors, and other harmful particles, it guarantees...
    03-0713005
    SKU:
    03-0713005
    Length Options:
    10 Inch
    Truck Class:
    Heavy Duty
    Make:
    Freightliner
    Product Type:
    Interior
    $8.09
    Qty in Cart: 0
    Price:
    $8.09
    Subtotal:
  • FASS Fuel Filter Delete Kit For Ford F250, F350, F450 W/ Powerstroke 6.7L Engine

    FASS Fuel Filter Delete Kit For Ford F250, F350, F450 W/ Powerstroke 6.7L Engine

    FASS

    $101.99
    Fuel Filter Delete Kit For Powerstroke 6.7L Engine 2011-2023Improve your fuel system setup with the FASS Fuel Filter Delete Kit for Ford F250, F350, and F450 trucks equipped with the 6.7L Powerstroke...
    05-07030052
    SKU:
    05-07030052
    Style Options:
    Powerstroke
    Position:
    Kit Full
    Product Type:
    Engine Parts
    Make:
    Ford
    $101.99
    Qty in Cart: 0
    Price:
    $101.99
    Subtotal:
  • BESTfit 10 X 10 X 3/4 Inch Pleated Woven Fabric Cabin Air Filter Replaces 85112361 For Mack DM, Granite & Pinnacle Series

    BESTfit 10 X 10 X 3/4 Inch Pleated Woven Fabric Cabin Air Filter Replaces 85112361 For Mack DM, Granite & Pinnacle Series

    BESTFIT TRUCK PARTS

    $19.99
    BESTfit Pleated Woven Fabric Cabin Air Filter Fits Mack DM, Granite & Pinnacle Series 2004-2010Protect your Mack DM, Granite, or Pinnacle series from dust and pollen with the BESTfit Pleated Woven...
    11-150300005
    SKU:
    11-150300005
    Truck Class:
    Heavy Duty
    Length Options:
    10 Inch
    Height Options:
    10 Inch
    Material Options:
    Cloth
    Make:
    Mack
    Product Type:
    Interior
    $19.99
    Qty in Cart: 0
    Price:
    $19.99
    Subtotal:
  • Roadworks 10 Inch Stainless Steel Drop Visor For Mack W/ Flat Top

    Roadworks 10 Inch Stainless Steel Drop Visor For Mack W/ Flat Top

    ROADWORKS

    $412.99
    10 Inch Stainless Steel Drop Visor By Roadworks Fits Mack W/ Flat Top* Made Of High Quality Stainless Steel* 10 Inch Dropped Style* Fits Flat Top Model Cabs* Replaces Factory Fiberglass Visors*...
    11-09003005
    SKU:
    11-09003005
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Height Options:
    10 Inch
    Material Options:
    Stainless Steel
    Make:
    Mack
    Light Options:
    Without Lights
    Product Type:
    Exterior
    Cab Style:
    Flat Top
    Ready To Ship:
    Yes
    $412.99
    Qty in Cart: 0
    Price:
    $412.99
    Subtotal:
  • Stainless Steel Cowl Panels W/ 10 M3 Amber LED Lights For Western Star Lowmax

    Stainless Steel Cowl Panels W/ 10 M3 Amber LED Lights For Western Star Lowmax

    ROADWORKS

    $618.99
    RoadWorks SS Cowl Panels W/ Amber M3 LED Lights* High Quality Cowl Panels* Stainless Steel* Cowl Panels* 10 Amber LED M-3 Lights * For Western Star Lowmax* 5 Lights Per Side* Sold As Pair* Warranty...
    14-09120005
    SKU:
    14-09120005
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Light Options:
    With Lights
    Material Options:
    Stainless Steel
    Make:
    Western Star
    Finish Options:
    Paintable
    Length Options:
    14 Inch
    Product Type:
    Exterior
    $618.99
    Qty in Cart: 0
    Price:
    $618.99
    Subtotal:
  • Stainless Steel Anti-Sail Light Bars W/ 10 P3 Red/Red LEDs For Mud Flaps

    Stainless Steel Anti-Sail Light Bars W/ 10 P3 Red/Red LEDs For Mud Flaps

    PHOENIX DESIGN

    $325.99
    Stainless Steel Anti-Sail Light Bars W/ 10 P3 Red LED Red Lens Lights* High Quality Light Bar* Made Of 304 Stainless Steel* 5 P3 Lights Per Side* Red LED/Red Lens* Sold As Pair* Made In USA* Warranty...
    09-050700059
    SKU:
    09-050700059
    Color:
    Red
    Truck Class:
    Universal
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Light Options:
    With Lights
    Product Type:
    Mud Flaps
    $325.99
    Qty in Cart: 0
    Price:
    $325.99
    Subtotal:
  • 10 Micron Fuel Water Separator Filter

    10 Micron Fuel Water Separator Filter

    OPP - ORIGINAL PARTS PROGRAM

    $42.04
    Donaldson 10 Micron Fuel Water Separator FilterRemove contaminates and water from your fuel system with this Donaldson fuel filter and water separator cartridge. It separates water in the fuel system...
    DNP550849
    SKU:
    DNP550849
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $42.04
    Qty in Cart: 0
    Price:
    $42.04
    Subtotal:
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