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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

    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

    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

    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
    Air Bag For Rear Of Cab Or Sleeper For Freightliner Replaces 18-66715-000 & W02-358-7215

    Air Bag For Rear Of Cab Or Sleeper For Freightliner Replaces 18-66715-000 & W02-358-7215

    AUTOMANN USA

    $36.42
    Air Bag For Sleeper 12.1 Inch Maximum Height W/ 3.15 Inch Top PlateReinforce your Freightliner's suspension with the Air Bag For Rear Of Cab Or Sleeper. This rear cab or sleeper air bag is built with...
    03-101404
    SKU:
    03-101404
    Truck Class:
    Heavy Duty
    Make:
    Freightliner
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    $36.42
    Qty in Cart: 0
    Price:
    $36.42
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit Air Dryer AD9 Type With Mounting Brackets

    BESTfit Air Dryer AD9 Type With Mounting Brackets

    BESTFIT TRUCK PARTS

    $179.99
    Air DryerThis high quality 12 volt Air Dryer AD9 Type with the Mounting Brackets is backed by extensive testing and collects and removes solid, liquid, and vapor contaminants before they can enter...
    09-051404
    SKU:
    09-051404
    Truck Class:
    Universal
    Make:
    Universal Items
    Diameter Options:
    7 Inch
    Product Type:
    Air, Electrical, & Safety
    Ready To Ship:
    Yes
    $179.99
    Qty in Cart: 0
    Price:
    $179.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Stainless Upper Door Sill Trim For Peterbilt With Door Mount Mirrors 1973-2005

    Stainless Upper Door Sill Trim For Peterbilt With Door Mount Mirrors 1973-2005

    PHOENIX DESIGN

    $86.99
    Rivet Mount SS Upper Door Sill Trim Fits Peterbilt 1973-2005 300 Series Conventional Cabs With Door Mounted MirrorsUpgrade your ride with the sleek and stylish Stainless Steel Upper Door Sill Trim!...
    01-0914040
    SKU:
    01-0914040
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Exterior
    Position:
    Upper
    Ready To Ship:
    Yes
    $86.99
    Qty in Cart: 0
    Price:
    $86.99
    Subtotal:
  • Roadworks 6 Inch Stainless Steel Door Chops For International 9900I, 9900IX

    Roadworks 6 Inch Stainless Steel Door Chops For International 9900I, 9900IX

    ROADWORKS

    $148.99
    6 Inch Stainless Steel Door Chops By Roadworks Fits International 9900I, 9900IX* High Quality Door Chops* Made Of Stainless Steel * 6 Inch* For Trucks Without Passenger Side Mirror * Sold As Pair*...
    07-0914041
    SKU:
    07-0914041
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Height Options:
    6 Inch
    Material Options:
    Stainless Steel
    Make:
    International
    Product Type:
    Exterior
    $148.99
    Qty in Cart: 0
    Price:
    $148.99
    Subtotal:
  • Door Latch For International - Passenger Side

    Door Latch For International - Passenger Side

    AFTERMARKET

    $48.34
    Door Latch Replaces 2218445, 1677435C1, 1677435C2 Fits InternationalReplace a worn or damaged passenger-side door latch on your International truck with the Door Latch. Engineered for long-lasting...
    07-0914042
    SKU:
    07-0914042
    Truck Class:
    Heavy Duty
    Make:
    International
    Product Type:
    Exterior
    $48.34
    Qty in Cart: 0
    Price:
    $48.34
    Subtotal:
  • FREE SHIPPING OVER $249
    304 Stainless Steel Center Door Handle Trim For International DuraStar 4300

    304 Stainless Steel Center Door Handle Trim For International DuraStar 4300

    ROADWORKS

    $26.43
    Center Door Handle Trim* High Quality Center Door Handle Trim * Made Of 304 Stainless Steel * Sold As Pair* Warranty On Center Door Handle Trim Against Defects In Workmanship & Material From Date Of...
    07-0914044
    SKU:
    07-0914044
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    International
    Product Type:
    Exterior
    $26.43
    Qty in Cart: 0
    Price:
    $26.43
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  • BESTfit 4 Inch ID/OD 90 Degree 8 X 8 Inch Chrome Elbow

    BESTfit 4 Inch ID/OD 90 Degree 8 X 8 Inch Chrome Elbow

    BESTFIT TRUCK PARTS

    $207.99
    BESTfit 90 Degree Exhaust Elbow W/ One Bell EndElevate your exhaust with the BESTfit 4 Inch ID/OD 90 Degree 8 X 8 Inch Chrome Elbow from 4 State Trucks. Crafted with precision, this high-quality...
    09-0801404
    SKU:
    09-0801404
    Diameter Options:
    4 Inch
    Style Options:
    Elbow
    Material Options:
    Steel
    Degree Options:
    90
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $207.99
    Qty in Cart: 0
    Price:
    $207.99
    Subtotal:
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    7 Inch 10 High Power Diode Driving Light, 1300 Lumens, Clear Lens

    7 Inch 10 High Power Diode Driving Light, 1300 Lumens, Clear Lens

    UNITED PACIFIC

    $252.99
    7 Inch Single Stud Mount Round Driving Light W/ Black Housing* High Quality Driving Light* LED 10 Diodes* 7 Inch Diameter* High Power 3 Watt * Hard Wired* Metal Mounting Bracket And Hardware Included...
    09-1614041
    SKU:
    09-1614041
    Lumens:
    1001 to 2000 Lumens
    Color:
    White
    Diameter Options:
    7 Inch
    Truck Class:
    Universal
    Shape Options:
    Round
    Make:
    Universal Items
    Product Type:
    Lighting
    Ready To Ship:
    Yes
    $252.99
    Qty in Cart: 0
    Price:
    $252.99
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  • FREE SHIPPING OVER $249
    Chrome Halogen 6 Inch Spotlight

    Chrome Halogen 6 Inch Spotlight

    UNITY MFG

    $229.99
    Halogen 6 Inch Spotlight* High Quality Spotlight* Made Of Chrome* Fingertip Switch Provides 360 Degree Continuous Horizontal Rotation* 120 Degree Vertical Adjustment* 160,000 Candlepower* 12 Volts*...
    29-161404
    SKU:
    29-161404
    Diameter Options:
    6 Inch
    Truck Class:
    Heavy Duty
    Length Options:
    16 Inch
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Material Options:
    Steel
    Product Type:
    Lighting
    $229.99
    Qty in Cart: 0
    Price:
    $229.99
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  • Window Air Deflectors - Side Of Door

    Window Air Deflectors - Side Of Door

    ROADWORKS

    $38.84
    Window Air Deflectors - Side Of Door* High Quality Window Air Deflector* Side Of Door* Sold Individually* Warranty On Window Air Deflectors Against Defects In Workmanship & Material From Date Of...
    01-0914049
    SKU:
    01-0914049
    Truck Class:
    Heavy Duty
    Product Type:
    Exterior
    Make:
    Peterbilt
    $38.84
    Qty in Cart: 0
    Price:
    $38.84
    Subtotal:
  • Black Air Tank 1488 Cubic in Vol 9.50 Inch Replaces 2001LH01, HT9531

    Black Air Tank 1488 Cubic in Vol 9.50 Inch Replaces 2001LH01, HT9531

    AFTERMARKET

    $221.99
    Air Tank With Type 4 End BracketsThis Air Tank Assembly keeps your air-actuated braking and suspension systems working efficiently by replacing your old, corroded, and leaking air tank. It also...
    19-051404
    SKU:
    19-051404
    Truck Class:
    Heavy Duty
    Diameter Options:
    9 1/2 Inch
    Color:
    Black
    Material Options:
    Steel
    Product Type:
    Trailer
    Make:
    Universal Items
    $221.99
    Qty in Cart: 0
    Price:
    $221.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Turnpike Truck Trim Stainless Upper Door Sill Trim For Peterbilt With Cab Mount Mirrors 2005-Rivet Mount

    Turnpike Truck Trim Stainless Upper Door Sill Trim For Peterbilt With Cab Mount Mirrors 2005-Rivet Mount

    TURNPIKE TRUCK TRIM

    $83.99
    Rivet Mount SS Upper Door Sill Trim Fits Peterbilt 2005 300 Series Conventional Cabs With Cab Mounted Mirrors* High Quality Upper Door Window Trim* Made Of High Quality Stainless Steel* Rivet Mount*...
    01-0914041
    SKU:
    01-0914041
    Position:
    Upper
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    $83.99
    Qty in Cart: 0
    Price:
    $83.99
    Subtotal:
  • Stainless Steel Under-Window Trim With Dimples

    Stainless Steel Under-Window Trim With Dimples

    PHOENIX DESIGN

    $82.99
    Stainless Steel Under-Window Trim With Dimples* High Quality Under-Window Trim* Made Of 304 Stainless Steel * Daylite Door Contoured* Under Window Trim* Slim Style* With Dimples* Sold As Pair*...
    02-0914040
    SKU:
    02-0914040
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    $82.99
    Qty in Cart: 0
    Price:
    $82.99
    Subtotal:
  • Air Tank W/ Split Reservoir, 9.5 x 54 Inch - Replaces 12-15476-000 For Freightliner Cascadia, Columbia

    Air Tank W/ Split Reservoir, 9.5 x 54 Inch - Replaces 12-15476-000 For Freightliner Cascadia, Columbia

    AFTERMARKET

    $531.99
    Freightliner Black Carbon Steel Air Tank With Seven 1/2, Three 3/8, One 1/4, One 1/8 NPT PortsKeep your Freightliner Cascadia or Columbia operating safely with the 9.5 x 54 Inch Air Tank with Split...
    03-051404
    SKU:
    03-051404
    Diameter Options:
    9 Inch
    Length Options:
    54 Inch
    Color:
    Black
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Freightliner
    Product Type:
    Air, Electrical, & Safety
    $531.99
    Qty in Cart: 0
    Price:
    $531.99
    Subtotal:
  • Smoked Acrylic Ventalator For Sterling

    Smoked Acrylic Ventalator For Sterling

    BELMOR

    $90.99
    Ventalator Fits SterlingDo you want to get rid of the annoying pooling of water by your side mirror when it rains? 4 State Trucks offers this set of two Belmor VentVisors that will help you enjoy a...
    05-091404
    SKU:
    05-091404
    Truck Class:
    Heavy Duty
    Color:
    Gray
    Location:
    Made In USA
    Material Options:
    Plastic/Poly
    Make:
    Sterling
    Product Type:
    Exterior
    $90.99
    Qty in Cart: 0
    Price:
    $90.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Turnpike Truck Trim Stainless Upper Door Sill Trim For Peterbilt With Cab Mount Mirrors 2006 & Newer-Rivet Mount

    Turnpike Truck Trim Stainless Upper Door Sill Trim For Peterbilt With Cab Mount Mirrors 2006 & Newer-Rivet Mount

    TURNPIKE TRUCK TRIM

    $83.99
    Rivet Mount SS Upper Door Sill Trim Fits Peterbilt 2006-Newer 300 Series Conventional Cabs With Cab Mounted MirrorsThis Pair Of High Quality Upper Door Trim With Dimples Is Made Of Stainless Steel...
    01-0914042
    SKU:
    01-0914042
    Position:
    Upper
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    $83.99
    Qty in Cart: 0
    Price:
    $83.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Turnpike Truck Trim Stainless Steel Window Air Deflectors For Peterbilt

    Turnpike Truck Trim Stainless Steel Window Air Deflectors For Peterbilt

    TURNPIKE TRUCK TRIM

    $30.44
    Peterbilt SS Wind Defectors By Turnpikr Truck TrimThese Turnpike Truck Trim window air deflectors are made of tough stainless steel and fit perfectly on the outside of select Peterbilt truck doors...
    01-0914043
    SKU:
    01-0914043
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    $30.44
    Qty in Cart: 0
    Price:
    $30.44
    Subtotal:
  • Cree Oval 5400 Lumen LED Work Light W/ Black Housing

    Cree Oval 5400 Lumen LED Work Light W/ Black Housing

    TRUX ACCESSORIES

    $124.99
    Oval LED Work LightThis round LED work light projects a spot beam up to 400 feet. It features 6 high-powered diodes and produces 3440 effective lumens. Made to withstand outside elements, the light...
    09-1614047
    SKU:
    09-1614047
    Lumens:
    5000+ Lumens
    Truck Class:
    Universal
    Shape Options:
    Oval
    Make:
    Universal Items
    Material Options:
    Plastic/Poly
    Product Type:
    Lighting
    $124.99
    Qty in Cart: 0
    Price:
    $124.99
    Subtotal:
  • 3.25 X 3 Inch 4 Large Diode Square LED Work Light

    3.25 X 3 Inch 4 Large Diode Square LED Work Light

    STURDY-LITE

    $85.16
    Square Work LightThis high quality 3.25 X 3 inch square LED work light has 4 diodes and 1380 lumens. The light is made in the USA.* High Quality LED Work Light* Includes:  - Black Aluminum Housing  -...
    09-1614049
    SKU:
    09-1614049
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Location:
    Made In USA
    Shape Options:
    Square
    Lumens:
    1001 to 2000 Lumens
    Style Options:
    Aluminum Housing
    Height Options:
    3 1/4 Inch
    Width Options:
    3 Inch
    Color:
    White/Clear
    Type Options:
    Stud Mount
    Length Options:
    3 Inch
    Product Type:
    Lighting
    Ready To Ship:
    Yes
    $85.16
    Qty in Cart: 0
    Price:
    $85.16
    Subtotal:
  • Belmor Smoked Ventvisors For Peterbilt - Pair

    Belmor Smoked Ventvisors For Peterbilt - Pair

    BELMOR

    $111.99
    Venta-Lator Side Window Deflectors Fits PeterbiltAdd this pair of high quality Belmor Ventvisors to your cab to reduce noise when driving at high speeds with your windows down and to deflect rain...
    01-0914048
    SKU:
    01-0914048
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Color:
    Gray
    Material Options:
    Plastic/Poly
    Make:
    Peterbilt
    Product Type:
    Exterior
    $111.99
    Qty in Cart: 0
    Price:
    $111.99
    Subtotal:
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