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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

    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 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

    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

    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

    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

    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

    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

    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

    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. 

    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

    CB Radios Ultimate Guide(Post)

    “10-4 Roger.” Despite the rise of messaging apps, GPS devices with voice-activated messaging, and push-to-talk (PTT) apps, the classic CB radio remains among the most trusted and well-used accessorie

    How to Choose the Best Fridge for Your Semi Truck(Post)

    Every OTR truck driver needs reliable cooling for food and beverages on long haul drives. That's where semi truck refrigerators come in handy. When it comes to buying this must-have accessory, what's

    What Should Be in a Semi Truck Emergency Kit? (Free PDF Checklist for Drivers)(Post)

    Semi-truck breakdowns cost money and time; but they aren't inevitable. With the right emergency accessories, truck drivers can minimize costly delays, tackle minor repairs on the fly, and safely power

    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

    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 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

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  • FREE SHIPPING OVER $249
    12 Volt Air Drier Wabco - Replaces 8079464, R955205, SRWABK118, 4324130010, 4324130030, 955205 & 3506784C91

    12 Volt Air Drier Wabco - Replaces 8079464, R955205, SRWABK118, 4324130010, 4324130030, 955205 & 3506784C91

    AUTOMANN USA

    $149.99
    Air Dryer WabcoThe Wabco 12 Volt Air Drier is an essential component for maintaining the integrity of your truck's air system. It removes moisture and contaminants to prevent damage to brakes and...
    955205
    SKU:
    955205
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Air, Electrical, & Safety
    Ready To Ship:
    Yes
    $149.99
    Qty in Cart: 0
    Price:
    $149.99
    Subtotal:
  • Self Steer Axle Tie Rod End 5.375 -02-205-0003-00

    Self Steer Axle Tie Rod End 5.375 -02-205-0003-00

    AFTERMARKET

    $98.99
    5.375 Inch Center To End Self Steer Axle Tie Rod End* High Quality Tie Rod End* Dimensions: - 5.375 Inch Center To End - 3.25 Inch Height Of Taper* Self Steer Axle* Made In USA* Sold Individually*...
    29-05090027
    SKU:
    29-05090027
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $98.99
    Qty in Cart: 0
    Price:
    $98.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Limited Quantity Available
    19 LED 12 Inch Light Bar W/ Chrome Plastic Bezel

    19 LED 12 Inch Light Bar W/ Chrome Plastic Bezel

    UNITED PACIFIC

    $37.90 - $41.61
    Revitalize your exterior lighting with this 19 LED 12 Inch Light Bar with Chrome Plastic Bezel. Designed as a universal aftermarket replacement, this light bar features 19 diodes and a chrome-plated...
    PPR_205598
    SKU:
    PPR_205598
    Truck Class:
    Universal
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Length Options:
    12 Inch
    Color:
    Red
    Product Type:
    Lighting
    Ready To Ship:
    Yes
    $37.90 - $41.61
    Qty in Cart: 0
    Price:
    $37.90 - $41.61
    Subtotal:
  • Robert James 26 Inch Black Quilted Vinyl Fuel Tank End Covers W/ 12 Inch Skirt - No Belt For Peterbilt

    Robert James 26 Inch Black Quilted Vinyl Fuel Tank End Covers W/ 12 Inch Skirt - No Belt For Peterbilt

    ROBERT JAMES ENTERPRISES

    $265.99
    Black Quilted Vinyl End Covers For 26 Inch Diameter Fuel Tanks W/ 12 Inch Sleeve By Robert JamesThe 26 Inch Black Quilted Vinyl Fuel Tank End Covers with 12 Inch Sleeve, No Belt offers durable...
    01-0652612051
    SKU:
    01-0652612051
    Material Options:
    Vinyl
    Diameter Options:
    26 Inch
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Make:
    Peterbilt
    Product Type:
    Fuel Tanks
    $265.99
    Qty in Cart: 0
    Price:
    $265.99
    Subtotal:
  • FREE SHIPPING OVER $249
    14 LED 12 Inch Chrome Stop. Turn And Tail Light Bar W/ Bezel

    14 LED 12 Inch Chrome Stop. Turn And Tail Light Bar W/ Bezel

    UNITED PACIFIC

    $33.07 - $38.46
    Make your truck shine with the 14 LED 12 Inch Chrome Stop, Turn and Tail Light Bar with Bezel. This universal heavy-duty truck light features 14 LEDs, a 12-inch design, and a chrome-plated plastic...
    PPR_205258
    SKU:
    PPR_205258
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Length Options:
    12 Inch
    Finish Options:
    Chrome-Plated
    Truck Class:
    Universal
    Color:
    Red
    Product Type:
    Lighting
    $33.07 - $38.46
    Qty in Cart: 0
    Price:
    $33.07 - $38.46
    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:
  • 3 Inch Stainless Steel Cab/Cowl Panels W/ 12 Round 3/4 Inch Amber LED Lights & Amber Lens For Peterbilt 389

    3 Inch Stainless Steel Cab/Cowl Panels W/ 12 Round 3/4 Inch Amber LED Lights & Amber Lens For Peterbilt 389

    PHOENIX DESIGN

    $755.99
    Stainless Steel Cab/Cowl Panels 3 Inch W/ 12 Round 3/4 Inch Amber LED Lights & Amber Lens Fits Peterbilt 389Designed specifically for Peterbilt 389 models, these stainless steel cab and cowl panels...
    01-0912057L003
    SKU:
    01-0912057L003
    Location:
    Made In USA
    Light Options:
    With Lights
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Finish Options:
    Polished
    Length Options:
    56 Inch
    Product Type:
    Exterior
    $755.99
    Qty in Cart: 0
    Price:
    $755.99
    Subtotal:
  • Ridewell RCA-215HM High Mount Lift Axle - Pre-plumbed W/ Outside Monitor

    Ridewell RCA-215HM High Mount Lift Axle - Pre-plumbed W/ Outside Monitor

    RIDEWELL

    $6,109.99
    Ridewell RCA-215HM High Mount Lift Axle - Professional Pre-Plumbed SystemEnhance your vehicle's load-bearing capabilities with the premium Ridewell RCA-215HM system. This professional-grade solution...
    2150205-01
    SKU:
    2150205-01
    Product Type:
    Frame & Chassis
    $6,109.99
    Qty in Cart: 0
    Price:
    $6,109.99
    Subtotal:
  • On Sale
    Merritt 18 X 18 Inch Smooth Aluminum Tool Box W/ Length, Door & Door Finish Options

    Merritt 18 X 18 Inch Smooth Aluminum Tool Box W/ Length, Door & Door Finish Options

    MERRITT

    $784.39 - $1,694.59
    Delivering strength, style, and versatility, the Merritt 18 x 18 Inch Smooth Aluminum Tool Box is an ideal addition to any truck. Its smooth aluminum construction resists corrosion, and the...
    PPR_205420
    SKU:
    PPR_205420
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Height Options:
    18 Inch
    Width Options:
    18 Inch
    Make:
    Universal Items
    Product Type:
    Toolboxes
    Ready To Ship:
    Yes
    $784.39 - $1,694.59
    Qty in Cart: 0
    Price:
    $784.39 - $1,694.59
    Subtotal:
  • 97DB Back-Up Alarm- 12/80VDC Dual Voltage 1250HZ

    97DB Back-Up Alarm- 12/80VDC Dual Voltage 1250HZ

    AUTOMANN USA

    $26.30
    Type C Back Up Alarm W/ Nylon HousingKeep your worksite safe with the 97DB Back-Up Alarm, engineered for heavy-duty vehicles with 12/80VDC dual voltage. Featuring a robust nylon housing and a...
    09-02050000
    SKU:
    09-02050000
    Truck Class:
    Universal
    Material Options:
    Nylon
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $26.30
    Qty in Cart: 0
    Price:
    $26.30
    Subtotal:
  • 12 - 10 Gauge Yellow Butt Connectors - 15 Pack

    12 - 10 Gauge Yellow Butt Connectors - 15 Pack

    GROTE

    $2.18
    Primary Wire Terminal Butt Connectors 12 - 10 ga. GROTE* High Quality Butt Connectors* PVC Nylon* Yellow* 12 - 10 Gauge* Female* Sold As Pack (15)* Warranty on butt connectors against defects in...
    09-161302052
    SKU:
    09-161302052
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Material Options:
    Nylon
    Color:
    Yellow
    Size Options:
    10 Gauge
    Ready To Ship:
    Yes
    $2.18
    Qty in Cart: 0
    Price:
    $2.18
    Subtotal:
  • FREE SHIPPING OVER $249
    Rubber Fuel Injector O-Ring Seal Kit - Replaces 17113205, 8-17113-205-0 For Isuzu NPR, GMC Savana/Express & Chevy Silverado 1500

    Rubber Fuel Injector O-Ring Seal Kit - Replaces 17113205, 8-17113-205-0 For Isuzu NPR, GMC Savana/Express & Chevy Silverado 1500

    DAYTON / DORMAN

    $24.29
    Fuel Injector O-Ring Seal Kit* High Quality Fuel Injector O-Ring Seal Kit* Package Contents: 1 Fuel Injector O-Ring Kit* Sold Individually** Warranty On Fuel Injector O-Ring Seal Kits Against Defects...
    29-070300001
    SKU:
    29-070300001
    Truck Class:
    Heavy Duty
    Make:
    Isuzu
    Make:
    GMC
    Make:
    Chevrolet
    Product Type:
    Engine Parts
    $24.29
    Qty in Cart: 0
    Price:
    $24.29
    Subtotal:
  • FREE SHIPPING OVER $249
    1.6MM X 22.25MM DPF Clamp Replaces 21212520 For Volvo W/ D13 Engine & Mack W/ MP8 Engines

    1.6MM X 22.25MM DPF Clamp Replaces 21212520 For Volvo W/ D13 Engine & Mack W/ MP8 Engines

    DAYTON / DORMAN

    $47.10
    Diesel Particulate Filter Exhaust ClampThis 1.6mm x 22.25mm DPF Exhaust Clamp delivers reliable strength and fit for Volvo and Mack exhaust systems. Constructed from corrosion-resistant stainless...
    29-0809205
    SKU:
    29-0809205
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Volvo
    Make:
    Mack
    Product Type:
    Exhaust
    $47.10
    Qty in Cart: 0
    Price:
    $47.10
    Subtotal:
  • FREE SHIPPING OVER $249
    Bostrom And National Seat Adapter Kit For Peterbilt & Kenworth

    Bostrom And National Seat Adapter Kit For Peterbilt & Kenworth

    BOSTROM TRUCK SEATS

    $103.99
    Seat Adapter Kit Fits Peterbilt & KenworthAre you installing a new seat in your truck? 4 State Trucks offers this quality retrofit seat adapter kit for use with Bostrom and National Seats to fit many...
    6205011001
    SKU:
    6205011001
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Seats
    Position:
    Kit Full
    Location:
    Made In USA
    $103.99
    Qty in Cart: 0
    Price:
    $103.99
    Subtotal:
  • Stop, Turn & Tail Light Kit 10 LED 4 Inch W/ Lens Color Options

    Stop, Turn & Tail Light Kit 10 LED 4 Inch W/ Lens Color Options

    UNITED PACIFIC

    $65,536.00
    The 10 LED 4-Inch Stop, Turn and Tail Light Kit provides a practical lighting option for trucks and trailers needing a universal round replacement light. This 4-inch LED light features a plastic/poly...
    PPR_205205
    SKU:
    PPR_205205
    Truck Class:
    Universal
    Material Options:
    Plastic/Poly
    Shape Options:
    Round
    Make:
    Universal Items
    Diameter Options:
    4 Inch
    Product Type:
    Lighting
    $65,536.00
    Qty in Cart: 0
    Price:
    $65,536.00
    Subtotal:
  • 2.5 X 58 Inch Sleeper Panel W/ 4 P1 Amber/Clear LED Lights For Peterbilt 567, 579 - Pair

    2.5 X 58 Inch Sleeper Panel W/ 4 P1 Amber/Clear LED Lights For Peterbilt 567, 579 - Pair

    PHOENIX DESIGN

    $367.99
    Sleeper Panels W/ 8 P1 Amber/Clear LED Lights Fits Peterbilt 567 & 579 W/ 58 Inch Sleeper* High Quality Sleeper Panels * Made Of 304 Stainless Steel * 2.5 Inches Tall* With 2 P1 Clear Lens/Amber LED...
    01-1012051L001
    SKU:
    01-1012051L001
    Location:
    Made In USA
    Light Options:
    With Lights
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Finish Options:
    Polished
    Length Options:
    58 Inch
    Product Type:
    Exterior
    $367.99
    Qty in Cart: 0
    Price:
    $367.99
    Subtotal:
  • 3 Inch Sleeper Panels W/ 8 P1 Amber/Clear LED Lights For Peterbilt W/ 48/58 Inch Unibilt Sleepers No Extenders

    3 Inch Sleeper Panels W/ 8 P1 Amber/Clear LED Lights For Peterbilt W/ 48/58 Inch Unibilt Sleepers No Extenders

    PHOENIX DESIGN

    $324.99
    Stainless Sleeper Panels W/ 8 P1 Amber LED Clear Lens LED Lights Fit Peterbilt W/ 48/58 Inch Unibilt Sleepers No Extenders* High Quality Sleeper Panels * Made Of 304 Stainless Steel * 3 Inch* With 4...
    01-1012054L001
    SKU:
    01-1012054L001
    Light Options:
    With Lights
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Finish Options:
    Polished
    Length Options:
    58 Inch
    Product Type:
    Exterior
    $324.99
    Qty in Cart: 0
    Price:
    $324.99
    Subtotal:
  • FREE SHIPPING OVER $249
    2 Pack 194 Incandescent Light Bulb W/ Color Options

    2 Pack 194 Incandescent Light Bulb W/ Color Options

    GRAND GENERAL

    $1.97 - $5.21
    Replace old light bulbs with the 194 Incandescent Mini Replacement Light Bulb 2-Pack. Made for universal truck applications, these miniature incandescent bulbs operate at 12 volts and 0.27 amps and...
    PPR_205700
    SKU:
    PPR_205700
    Truck Class:
    Universal
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Product Type:
    Lighting
    Ready To Ship:
    Yes
    Color:
    Amber
    Color:
    Red
    Color:
    Blue
    Color:
    Various
    Color:
    Green
    Style Options:
    Incandescent
    Color:
    White/Clear
    $1.97 - $5.21
    Qty in Cart: 0
    Price:
    $1.97 - $5.21
    Subtotal:
  • BESTfit 4 X 8 X 12 Inch Aluminized Steel Universal Type A Y-Pipe With No Divider Plate

    BESTfit 4 X 8 X 12 Inch Aluminized Steel Universal Type A Y-Pipe With No Divider Plate

    BESTFIT TRUCK PARTS

    $256.99
    BESTfit 4 X 8 X 12 Inch Aluminized Steel Universal Type A Y-Pipe With No Divider PlateAre you wanting to increase engine power? 4 State trucks offers this quality Y Pipe that can improve the flow of...
    09-080100205
    SKU:
    09-080100205
    Diameter Options:
    4 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminized Steel
    Product Type:
    Exhaust
    Make:
    Universal Items
    $256.99
    Qty in Cart: 0
    Price:
    $256.99
    Subtotal:
  • 3 Wire Pigtail With 3 Prong Right Angle Plug - 12 Inch Lead - 50 Pcs

    3 Wire Pigtail With 3 Prong Right Angle Plug - 12 Inch Lead - 50 Pcs

    UNITED PACIFIC

    $53.99
    3 Wire Pigtail With 3 Prong Right Angle Plug - 12 Inch Lead - 50 PcsThis 3-wire pigtail harness uses a 3-prong right-angle plug and comes with 12 inch lead wires, ideal for connecting trailer or...
    09-16020518
    SKU:
    09-16020518
    Style Options:
    3 Prong
    Product Type:
    Lighting
    Length Options:
    12 Inch
    Make:
    Universal Items
    $53.99
    Qty in Cart: 0
    Price:
    $53.99
    Subtotal:
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