null

Price Range

    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

    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

    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

    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

    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

    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

    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

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • FREE SHIPPING OVER $249
    BESTfit 5 Inch Aluminized Multi-Bend Turbo Pipe Replaces 04-17094-020 For Freightliner FLD

    BESTfit 5 Inch Aluminized Multi-Bend Turbo Pipe Replaces 04-17094-020 For Freightliner FLD

    BESTFIT TRUCK PARTS

    $205.99
    BESTfit Multi-Bend 5 Inch Aluminized Turbo Pipe Without Pyrometer Fitting Fits Freightliner FLD* High Quality Turbo Exhaust Pipe* (2) 90 Degree Bends* Without Pyrometer Fitting* Made of Aluminized...
    03-08140200
    SKU:
    03-08140200
    Diameter Options:
    5 Inch
    Truck Class:
    Heavy Duty
    Style Options:
    Flanged
    Material Options:
    Aluminized Steel
    Make:
    Freightliner
    Product Type:
    Exhaust
    $205.99
    Qty in Cart: 0
    Price:
    $205.99
    Subtotal:
  • 3 Layer Replacement Air Filter Wrap For 29-071300018 High Performance Air Filter

    3 Layer Replacement Air Filter Wrap For 29-071300018 High Performance Air Filter

    FLEET FILTERS

    $195.99
    3 Layer Replacement Air Filter Wrap For High Performance Air Filter* High Quality Replacement Air Filter Wrap* For 29-071300018* 3 Layer Design* Does Not Come Pre-Oiled* Oil Is Required Before...
    29-071300020
    SKU:
    29-071300020
    Truck Class:
    Heavy Duty
    Make:
    Volvo
    Product Type:
    Engine Parts
    $195.99
    Qty in Cart: 0
    Price:
    $195.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    High Flow Performance Air Filter With Washable Element Media For Peterbilt - Pair

    High Flow Performance Air Filter With Washable Element Media For Peterbilt - Pair

    FLEET FILTERS

    Now: $325.13
    Was: $839.99
    High Performance Air Filter Media Fits Peterbilt - PairYou never need to waste money on paper filters again! 4 State Trucks proudly offers Fleet Air Filters, the only lifetime, washable, high flow,...
    29-090500020
    SKU:
    29-090500020
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Product Type:
    Exterior
    Now: $325.13
    Was: $839.99
    Qty in Cart: 0
    Price:
    Now: $325.13
    Was: $839.99
    Subtotal:
  • Stainless Steel Diesel Particulate Filter Replaces 23537225, A6804908692 For Detroit Diesel S60 Engine

    Stainless Steel Diesel Particulate Filter Replaces 23537225, A6804908692 For Detroit Diesel S60 Engine

    GLOBAL EMISSIONS

    $2,619.99
    Stainless Steel Diesel Particulate Filter Fits Detroit Diesel S60 Engine* High Quality Diesel Particulate Filter* Made Of Stainless Steel * OEM Quality Clamps And Gaskets Included* Sold Individually...
    29-080600020
    SKU:
    29-080600020
    Truck Class:
    Heavy Duty
    Style Options:
    Detroit
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $2,619.99
    Qty in Cart: 0
    Price:
    $2,619.99
    Subtotal:
  • 20 Inch Texas Stainless Steel Bumper, 11 Gauge W/ Tow Holes By BESTfit For Kenworth W900B & W900L

    20 Inch Texas Stainless Steel Bumper, 11 Gauge W/ Tow Holes By BESTfit For Kenworth W900B & W900L

    BESTFIT TRUCK PARTS

    $827.99
    BESTfit Kenworth SS 20 Inch Boxed End Texas Bumper Mounting & Tow HolesThis BESTfit Texas Bumper is 20 inches from top to bottom and has boxed ends. It is made of 11 gauge number 8 finish, non...
    02-010020060
    SKU:
    02-010020060
    Make:
    Kenworth
    Height Options:
    20 Inch
    Truck Class:
    Heavy Duty
    Style Options:
    Texas Boxed End
    Material Options:
    Stainless Steel
    Type Options:
    Standard Mount
    Size Options:
    11 Gauge
    Finish Options:
    Polished
    Product Type:
    Bumpers
    $827.99
    Qty in Cart: 0
    Price:
    $827.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Oil Filter Wrench For 3-1/2 Inch To 3-7/8 Inch Oil Filters

    Oil Filter Wrench For 3-1/2 Inch To 3-7/8 Inch Oil Filters

    AFTERMARKET

    $12.47
    Oil Filter WrenchEasily remove 3-1/2 inch to 3-7/8 inch spin on type of oil filters with this wrench. It is sold individually.* High Quality Wrench * For Oil Filter* 3-1/2 Inch to 3-7/8 Inch (89mm to...
    09-21000204
    SKU:
    09-21000204
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Tools
    $12.47
    Qty in Cart: 0
    Price:
    $12.47
    Subtotal:
  • BESTfit Stainless Steel 20 Inch Texas Bumper, 11 Gauge W/ Mounting & Tow Holes For Kenworth W990

    BESTfit Stainless Steel 20 Inch Texas Bumper, 11 Gauge W/ Mounting & Tow Holes For Kenworth W990

    BESTFIT TRUCK PARTS

    $830.99
    BESTfit Kenworth SS 20 Inch Boxed End Texas Bumper Mounting & Tow HolesThis BESTfit Texas Bumper is 20 inches from top to bottom and has Boxed ends. It is made of 11 gauge number 8 finish, non...
    02-010020062K
    SKU:
    02-010020062K
    Height Options:
    20 Inch
    Make:
    Kenworth
    Light Options:
    Without Lights
    Truck Class:
    Heavy Duty
    Style Options:
    Texas Boxed End
    Type Options:
    Standard Mount
    Size Options:
    11 Gauge
    Material Options:
    Stainless Steel
    Product Type:
    Bumpers
    Ready To Ship:
    Yes
    $830.99
    Qty in Cart: 0
    Price:
    $830.99
    Subtotal:
  • Steel 36 Gallon Bulkhead Hydraulic Reservoir W/ 10 Micron Filter - Powder Coated Black

    Steel 36 Gallon Bulkhead Hydraulic Reservoir W/ 10 Micron Filter - Powder Coated Black

    BUYERS PRODUCTS

    $1,825.99
    36 Gallon Hydraulic Reservoir With 10 Micron FilterThis durable 36-gallon Bulkhead Hydraulic Reservoir is built from 12-gauge steel with a rust-resistant black powder-coated finish. It features a...
    09-02500020
    SKU:
    09-02500020
    Color:
    Black
    Truck Class:
    Universal
    Height Options:
    26 Inch
    Width Options:
    42 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Cargo Control
    Length Options:
    8 1/2 Inch
    Capacity:
    36 Gallons
    Finish Options:
    Black Powder Coat
    Type Options:
    Side Mount
    Size Options:
    12 Gauge
    $1,825.99
    Qty in Cart: 0
    Price:
    $1,825.99
    Subtotal:
  • Power Steering Pump, 11 Tooth W/ Inlet At Top 0 Degree For Freightliner

    Power Steering Pump, 11 Tooth W/ Inlet At Top 0 Degree For Freightliner

    AFTERMARKET

    $458.99
    3.7 GPM Power Steering Pump With Right Handed Rotation, Replaces 14-12528-000Ensure optimal steering performance with the Power Steering Pump for Freightliner, featuring 11 teeth, passenger side...
    03-07120020
    SKU:
    03-07120020
    Truck Class:
    Heavy Duty
    Make:
    Freightliner
    Product Type:
    Engine Parts
    Material Options:
    Cast Iron
    $458.99
    Qty in Cart: 0
    Price:
    $458.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit 3.75 Inch x 7 Ft Fuel Cotton Polyester Tank Strap Webbing For Peterbilt Replaces 11-02331-000-7

    BESTfit 3.75 Inch x 7 Ft Fuel Cotton Polyester Tank Strap Webbing For Peterbilt Replaces 11-02331-000-7

    BESTFIT TRUCK PARTS

    $50.99
    3.75 Inch x 7 Ft Fuel Cotton Polyester Tank Strap Webbing by BESTfit Replaces 11-02331-000-7 Fits PeterbiltGet the perfect fit for your Peterbilt fuel tank with this strap liner. It's specifically...
    01-0601020
    SKU:
    01-0601020
    Product Type:
    Fuel Tanks
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    Length Options:
    84 Inch
    Material Options:
    Cotton Polyester
    Width Options:
    3 3/4 Inch
    Diameter Options:
    26 Inch
    $50.99
    Qty in Cart: 0
    Price:
    $50.99
    Subtotal:
  • BESTfit 20 Inch SS Texas Hand Formed End Bumper 11 Gauge W/ Mounting & Tow Holes For Peterbilt 357/378 SFA & 379

    BESTfit 20 Inch SS Texas Hand Formed End Bumper 11 Gauge W/ Mounting & Tow Holes For Peterbilt 357/378 SFA & 379

    BESTFIT TRUCK PARTS

    $868.99
    BESTfit Peterbilt SS 20 Inch Hand Formed End Texas Bumper Mounting & Tow HolesThis BESTfit Texas bumper is 20 inches from top to bottom and has hand formed ends. Mounting and tow holes fit 1987 -...
    01-010020061
    SKU:
    01-010020061
    Light Options:
    Without Lights
    Material Options:
    Stainless Steel
    Style Options:
    Texas Hand Formed
    Truck Class:
    Heavy Duty
    Height Options:
    20 Inch
    Size Options:
    11 Gauge
    Product Type:
    Bumpers
    Type Options:
    Standard Mount
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    $868.99
    Qty in Cart: 0
    Price:
    $868.99
    Subtotal:
  • BESTfit 20 Inch SS Texas Bumper, 11 Gauge W/ Hand Formed Ends, Mounting & Tow Holes For Kenworth W990

    BESTfit 20 Inch SS Texas Bumper, 11 Gauge W/ Hand Formed Ends, Mounting & Tow Holes For Kenworth W990

    BESTFIT TRUCK PARTS

    $790.99
    BESTfit Kenworth SS 20 Inch Hand Formed End Texas Bumper Mounting & Tow Holes* High Quality Bumper* Made Of 11 Gauge Number 8 Finish Stainless Steel* 20 Inches* Boxed Ends* Has Cutouts For: -...
    02-010020063K
    SKU:
    02-010020063K
    Truck Class:
    Heavy Duty
    Light Options:
    Without Lights
    Height Options:
    20 Inch
    Make:
    Kenworth
    Style Options:
    Texas Hand Formed
    Type Options:
    Standard Mount
    Size Options:
    11 Gauge
    Material Options:
    Stainless Steel
    Product Type:
    Bumpers
    $790.99
    Qty in Cart: 0
    Price:
    $790.99
    Subtotal:
  • BESTfit 20 Inch SS Texas Hand Formed End Bumper 11 Gauge W/ Mounting & Tow Holes For Kenworth W900B, W900L

    BESTfit 20 Inch SS Texas Hand Formed End Bumper 11 Gauge W/ Mounting & Tow Holes For Kenworth W900B, W900L

    BESTFIT TRUCK PARTS

    $868.99
    BESTfit Kenworth SS 20 Inch Hand Formed End Texas Bumper Mounting & Tow Holes* High Quality Bumper* Made Of 11 Gauge Number 8 Finish Stainless Steel* 20 Inches* Hand Formed Ends* Has Cutouts For: -...
    02-010020061
    SKU:
    02-010020061
    Light Options:
    Without Lights
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Height Options:
    20 Inch
    Style Options:
    Texas Hand Formed
    Material Options:
    Stainless Steel
    Type Options:
    Standard Mount
    Size Options:
    11 Gauge
    Product Type:
    Bumpers
    $868.99
    Qty in Cart: 0
    Price:
    $868.99
    Subtotal:
  • BESTfit Copper Brass Radiator W/ Frame 40.5 X 30.625 X 2.25 Inch For Kenworth W900

    BESTfit Copper Brass Radiator W/ Frame 40.5 X 30.625 X 2.25 Inch For Kenworth W900

    BESTFIT TRUCK PARTS

    $2,871.99
    Radiator W/ 2.5 Inch Inlet & 2.5 Inch Outlet By BESTfit Replaces 1A0202650000* High Quality Radiator * Made Of Copper/Brass* With Frame* Core Size:  - 40.500 Inch Height  - 30.625 Inch Width  - 2.25...
    02-070200020
    SKU:
    02-070200020
    Truck Class:
    Heavy Duty
    Material Options:
    Brass Copper
    Make:
    Kenworth
    Product Type:
    Engine Parts
    $2,871.99
    Qty in Cart: 0
    Price:
    $2,871.99
    Subtotal:
  • Filter Door Panel Cover For Peterbilt 375, 377, 378 & 379

    Filter Door Panel Cover For Peterbilt 375, 377, 378 & 379

    GRAND GENERAL

    $13.33
    Peterbilt Filter Door Panel CoverEnhance the interior detail of your Peterbilt 375, 377, 378, or 379 with this high-quality filter door panel cover designed for Peterbilt 370 Series 1995 & later...
    01-15020306
    SKU:
    01-15020306
    Material Options:
    Stainless Steel
    Product Type:
    Interior
    Height Options:
    4 1/2 Inch
    Width Options:
    6 Inch
    Make:
    Peterbilt
    $13.33
    Qty in Cart: 0
    Price:
    $13.33
    Subtotal:
  • Stainless Steel DPF Cover For International LT 2018-Current

    Stainless Steel DPF Cover For International LT 2018-Current

    ROADWORKS

    $478.99
    International LT Diesel Particulate Filter Cover By RoadWorks* High Quality DPF Cover* Made Of 430 Grade Stainless Steel * Cover Only* Does Not Include Step Or Brackets* Sold Individually* Warranty...
    07-050200002
    SKU:
    07-050200002
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    International
    Product Type:
    Fuel Tanks
    $478.99
    Qty in Cart: 0
    Price:
    $478.99
    Subtotal:
  • Stainless Steel A/C Cover With Filter Door For Peterbilt 1995-1999

    Stainless Steel A/C Cover With Filter Door For Peterbilt 1995-1999

    VALLEY CHROME PLATING

    $168.99
    A/C Cover With Filter Door* High Quality A/C Cover* A/C Replacement Cover For Peterbilt 370 Series 1995-1999* With Filter Door* Stainless Steel* Made In USA* Sold Individually* Warranty On A/C Covers...
    01-15020002
    SKU:
    01-15020002
    Material Options:
    Stainless Steel
    Product Type:
    Interior
    Location:
    Made In USA
    Make:
    Peterbilt
    $168.99
    Qty in Cart: 0
    Price:
    $168.99
    Subtotal:
  • Spoke Wheel Clamp F Style - Replaces W-99, E5786 For 3/4 Inch Studs

    Spoke Wheel Clamp F Style - Replaces W-99, E5786 For 3/4 Inch Studs

    AUTOMANN USA

    $13.86
    Spoke Wheel Rim Clamp With 0.75 Inch Hole & 2.13 Inch Wedge Depth* High Quality Wheel Clamp* Dimensions:  - 2.50 Inch Height  - 2.88 Inch Width  - 2.13 Inch Standout  - 0.75 Inch Hole I.D.* F Style*...
    09-20200208
    SKU:
    09-20200208
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Wheels
    $13.86
    Qty in Cart: 0
    Price:
    $13.86
    Subtotal:
  • 7 Inch White 11 Inch Red DOT-C2 Reflective Tape

    7 Inch White 11 Inch Red DOT-C2 Reflective Tape

    UNITED PACIFIC

    $107.99
    DOT-C2 Reflective Tape 7 Inch White 11 Inch RedEnhance road safety and boost visibility with this certified DOT-C2 conspicuity tape, featuring a 7 Inch white and 11 inch red alternating pattern. This...
    09-02020050
    SKU:
    09-02020050
    Color:
    Red/White
    Width Options:
    2 Inch
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $107.99
    Qty in Cart: 0
    Price:
    $107.99
    Subtotal:
  • Total: items /

Adding your products to cart


Introducing the Official 4 State Trucks Mobile App – Gear Up On the Go!